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Renal eclampsia: what it is, clinical picture and treatment methods. Emergency care for an attack of renal eclampsia, treatment, medications

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Renal eclampsia is

Eclampsia renal

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Causes, symptoms Renal eclampsia is a syndrome that is manifested by loss of consciousness, convulsions, caused by spasm of cerebral arterioles and edema. Renal eclampsia is observed in patients with acute kidney disease; it can also occur with exacerbation of nephropathy in a pregnant woman. Renal eclampsia occurs during a period of increased blood pressure and pronounced edema. Its symptoms are increased intracranial pressure, swelling of brain tissue, and cerebral vasospasm. Attacks are provoked by unlimited fluid intake and the patient’s consumption of salty foods in large quantities. Clinical picture of an attack Almost always, an attack is preceded by drowsiness and lethargy. A severe headache appears and dizziness may occur. The patient's consciousness becomes clouded, he may begin to delirium or see hallucinations, and sometimes there is a short-term loss of consciousness. Nausea appears arterial pressure rises quickly, swelling increases. Vision is also upset: spots may flash before the patient’s eyes, a veil may appear, and sometimes vision simply drops sharply. Seizures always occur suddenly. They are strong tonic contractions, which are abruptly replaced by strong clonic convulsions. The patient's face becomes cyanotic, jugular veins they swell, the tongue is bitten, and foam flows from the mouth. The eyes roll back or slant to the side, the pupils do not respond to light, and the eyeballs are hard. Blood pressure is elevated, as is the temperature, and the pulse is intense, but rare. Sometimes involuntary urination may occur. Such attacks usually last for several minutes, the number of seizures also varies - from 1-2 to 10 or more. After the attacks, the patient calms down and remains for some time in a state of stupor, stupor, or even coma. When he comes to, he doesn't remember anything. After a seizure, lethargy, difficulty speaking, and amaurosis remain for some time. True, so clinical picture not always present. Sometimes the patient may not even lose consciousness at all. Differential diagnosis and treatment Renal eclampsia is differentiated from seizures of other origins. Similar seizures are observed in epilepsy. True, with epilepsy, swelling does not occur, blood pressure does not increase, and attacks are observed for many years. Edema is also not expressed in hypertensive encephalopathy, with which renal eclampsia can be confused. Convulsions can also occur during uremic coma. True, in this case there is chronic kidney disease, slow development of seizures, signs of uremic intoxication. It is sometimes necessary to differentiate coma during eclampsia from hemorrhage in the brain. True, with a cerebral hemorrhage, the patient has no renal history, no edema is observed, but there is focal symptoms, which include paralysis and paresis. Diagnosis is carried out after the first medical care. The patient passes general tests blood, urine, biochemical analysis blood, does an ultrasound of the kidneys. The diagnosis of renal eclampsia is an indicator for hospitalization. Treatment is aimed at eliminating seizures, reducing swelling, and lowering blood pressure. An attack is blocked if the patient undergoes a spinal or suboccipital puncture and releases a certain amount cerebrospinal fluid. At the same time, intracranial pressure decreases and the patient comes to his senses. Bloodletting and intravenous administration of magnesium sulfate help with attacks, which also lowers blood pressure and reduces swelling of the brain. After stopping the attack, the doctor prescribes the patient an achloride diet, and then a diet containing limited intake of sodium chloride to 3-4 g and liquid to 1 liter per day. Health Suggest news

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Renal eclampsia

Renal eclampsia occurs when acute nephritis, nephropathy in pregnant women and very rarely with chronic nephritis. In acute nephritis, it develops now rarely (no more than in 0.3% of all cases, according to M. Sarre, 1967), and in nephropathy of pregnant women - more often.

Pathogenesis of renal eclampsia

Pathogenesis is associated with a significant increase in blood pressure, accompanied by spasm cerebral vessels, leading to impaired blood supply to the brain, swelling, and increased intracranial and spinal pressure. Some clinicians attach great importance in the occurrence of renal eclampsia to an increase in blood pressure, vasospasm leading to cerebral ischemia, and others - to its edema, but the importance of both of these factors in the occurrence of convulsive attacks is undoubted. Hypertension and vasospasm appear to precede the development of cerebral edema and increased intracranial pressure.

Renal eclampsia clinic

A convulsive attack may be preceded by prodromal symptoms: a significant increase in blood pressure, increased edema, proteinuria, severe headache, dizziness, tinnitus, decreased visual acuity (even loss), diplopia, decreased urine output, a feeling of pressure in the hypochondrium, vomiting. The prodromal period is usually very short (a few minutes) or absent altogether, and the seizure occurs suddenly. There are four phases of the attack: the 1st (about 30 s) is characterized by fibrillary twitching of the facial muscles, the disappearance of pupillary reflexes; 2nd (10-30 s) - phase of tonic spasms of skeletal muscles with a predominance of extensor tone (opisthotonus), with trismus (sometimes with tongue biting), loss of consciousness, dilated pupils, cyanosis; 3rd (30-120 s) - phase of clonic convulsions covering the whole body, breathing is labored, stridorous, the patient is tossing about, foamy liquid is released from the mouth; 4th - comatose; the patient is unconscious, breathing is noisy, attacks of clonic convulsions are repeated, urinary and fecal incontinence is possible. At this stage, in rare cases, death occurs from asphyxia, cerebral hemorrhage, or pulmonary edema. But usually the patient regains consciousness after a few minutes, a maximum of 30 minutes, the convulsions stop, but there remains a stuporous state or lethargy, stupor, difficulty speaking, amaurosis or hemianopsia, lasting several hours, then disappearing completely. Much less often, after the cessation of a convulsive attack, mental agitation and motor restlessness with attempts to escape and aggressiveness are observed for several hours. Patients, as with epilepsy, do not remember what happened to them. Seizures of renal eclampsia are rarely isolated; more often they are repeated several times during the day, then end as suddenly as they began. During seizures, the pulse is slow and blood pressure is high. There are signs of increased intracranial pressure: high tendon reflexes, positive Babinski's sign, foot clonus, fundus examination shows a picture of a congestive nipple, and lumbar puncture shows high spinal pressure (up to 800 mm H2O).

However, such a typical picture of renal eclampsia is not always observed. The attack can occur with full consciousness or a very short-term loss of consciousness; against the background of increased blood pressure, only severe headache, amaurosis, lethargy, isolated twitching of the facial muscles, pyramidal signs, and congestive nipples are noted. The level of residual nitrogen, urea, and creatinine in the blood is usually not elevated in renal eclampsia. Severe anemia and electrolyte imbalance were not observed.

Differential diagnosis of renal eclampsia

Differential diagnosis is difficult only if an attack of renal eclampsia is the first manifestation of acute nephritis or nephropathy in pregnancy (which is rare) or if it happened outside the hospital or outside the home, which is also a rare exception, since patients with acute nephritis and nephropathy in pregnancy must comply bed rest and are under medical supervision. In these cases, it is most difficult for a doctor to distinguish renal eclampsia from epilepsy. But with the latter, there is no swelling, a pronounced increase in blood pressure, bradycardia, and scars from old bites are often visible on the tongue. Epileptiform convulsions observed during atrioventricular blockade are characterized by sharp severe bradycardia(less than 30 beats per 1 min), often normal or slightly increased systolic pressure only, no swelling on the face, a cannon tone can be heard on auscultation, no signs of increased intracranial pressure. In difficult cases, they resort to an ECG. In abortive forms of renal eclampsia, the thought of hypertensive encephalopathy may arise, but in the latter, edema is not expressed. When questioning patients, it is possible to establish a history of acute nephritis or nephropathy in pregnancy. In cases that are difficult to diagnose, it is necessary to perform a urine test (in acute nephritis - severe albuminuria, cylindruria, erythrocyturia, in hypertension - absence (or in small quantities) of protein in the urine, red blood cells, cylinders). Sometimes it is necessary to differentiate between coma due to eclampsia and cerebral hemorrhage. But in the latter case, there is no “renal” history, edema, pallor of the face, the prodromal symptoms described above (the comatose state occurs suddenly), changes in the urine, and on the other hand, there are focal symptoms (paresis, paralysis).

It is easy to differentiate between renal eclampsia and uremic coma, since the latter is the outcome of chronic nephritis, in which renal encephalopathy is rarely observed. Cases of a significant increase in azotemia in acute nephritis are rare, as a rule, only when it is complicated by acute renal failure (anuria). The latter is usually short-term (3-4 days) and occurs without loss of consciousness or convulsions.

Treatment of renal eclampsia

If during an attack of renal eclampsia the patient was not in the hospital, he must be immediately hospitalized (in the case of acute nephritis in the therapeutic or nephrological department, and in the case of nephropathy in pregnant women - in the obstetric department). In this case, it is necessary to prevent the tongue from biting and retracting (insert a spatula or spoon wrapped in a thick layer of gauze between the teeth and push it forward lower jaw), damage to the head and other parts of the body (support the head, place a pillow or blanket).

Immediately using the venipuncture method (if it fails, then using the venesection method), it is necessary to perform a fairly massive bloodletting (300-500 ml) to lower blood pressure and reduce cerebral edema. At the same time, 40-60 ml of a 40% glucose solution and 10-15 ml of a 25% magnesium sulfate solution are administered intravenously (slowly, over 3-4 minutes). The latter has a vasodilator, anticonvulsant effect, and also, along with hypertonic glucose solutions, reduces cerebral edema. Along with intravenous, they also use intramuscular injection 15-20 ml of 25% magnesium sulfate solution. If an attack of eclampsia does not stop, after 1-2 hours you need to repeat the intravenous infusion of glucose and magnesium sulfate in the same doses. It must be remembered, however, that in large doses Magnesium sulfate can have a depressant effect on the respiratory center. In such cases, a magnesium antagonist, calcium, is administered (10 ml of 10% calcium chloride solution intravenously). Additionally, to relieve frequently recurring convulsive attacks, 1 ml of a 2.5% solution of aminazine is administered intravenously, 1 ml of a 1% solution of morphine hydrochloride is administered subcutaneously, 50 ml of a 3-5% solution of chloral hydrate is administered as an enema, if necessary, up to 7 g of chloral hydrate and 0.025- 0.03 g of morphine hydrochloride per day. If cerebral edema is combined with general edema, left ventricular failure, 60 mg of furosemide (Lasix) should also be administered slowly intravenously, continuing if necessary. intravenous administration drip method. For renal eclampsia, dibazol (3-4 ml of 1% solution or 6-8 ml of 0.5% solution intravenously), aminophylline (10 ml of 2.4% solution intravenously repeatedly) are also used.

In most cases, with the help of the measures listed above, an attack of renal eclampsia is stopped. It is relatively rare to resort to lumbar puncture, which is usually performed in a hospital setting. The release of cerebrospinal fluid should be done slowly and not sharply reduce intracerebral pressure. After spinal tap intracranial pressure decreases and eclamptic seizures stop. After the attack has stopped, the patient needs inpatient treatment. In the first days he needs to be prescribed an achloride diet, and then a diet limiting sodium chloride to 3-4 g per day and liquid to 1 liter per day (in the first 1-2 days you can classical treatment hunger and thirst). For high blood pressure, antihypertensive drugs (reserpine, dibazole, aldomet or dopegit, clonidine, etc.) are prescribed in appropriate doses. For severe edema, diuretics are indicated; for heart failure, cardiac glycosides are indicated.

Forecast. Attacks of renal eclampsia usually do not worsen the prognosis in acute nephritis. On the contrary, it seems that if acute nephritis is accompanied by attacks, it usually does not develop into chronic nephritis. Death during an attack of renal eclampsia is rare. Its causes are cerebral hemorrhage and heart failure.

Prevention of attacks of renal eclampsia includes: early diagnosis, timely hospitalization and proper treatment of patients with acute nephritis and nephropathy in pregnant women. To eliminate hypertension, edema, and heart failure, first of all, a diet with limited water and sodium chloride, bed rest, and appropriate medications are prescribed.

Emergency conditions in the clinic of internal diseases. Gritsyuk A.I., 1985

extremed.ru

Renal eclampsia

Renal eclampsia occurs during acute nephritis, and in very rare cases - during exacerbations of chronic nephritis. It is based on spasm of cerebral vessels with the development of cerebral edema and increased intracranial pressure (angiospastic encephalopathy).

Symptoms of renal eclampsia

Eclampsia usually occurs at the peak of acute nephritis, most often in patients with significant edema. Sometimes attacks of renal eclampsia appear during the period of reduction of edema. The incorrect dietary regimen of patients with acute nephritis (taking significant amounts of liquid, table salt) is essential.

The attack is preceded by a period of precursors (preeclampsia), which usually lasts 2 days. The harbingers are; increased headaches (sometimes meningeal symptoms), vomiting, visual disturbances (fog before the eyes, flickering dark spots, sometimes transient hemianopsia or amaurosis), general excitement or, on the contrary, drowsiness, a state of stupor. At the same time, there is a significant increase in blood pressure compared to baseline(superhypertension) and bradycardia.

Against the background of the described condition, a deep loss of consciousness (eclamptic coma) may suddenly occur simultaneously with an attack of convulsions. At first, the convulsions are tonic in nature, then clonic. There is a sharp cyanosis of the face, hoarse breathing, dilated pupils, the tongue is often bitten, and there may be involuntary discharge of urine and feces. The attack most often lasts several minutes, then the patient remains in stupor. Often seizures are repeated (most often one, two or three seizures, but sometimes up to 30-40 seizures occur per day - eclamptic status).

After recovery from a coma with renal eclampsia, there is often loss of vision (amaurosis) or hemianopia associated with central brain changes. Visual disturbances are temporary and usually disappear completely soon.

If the patient comes under the supervision of a doctor already in a state of coma or eclamptic status, there is a need to differentiate from epilepsy. Renal eclampsia is characterized by arterial hypertension, edema is often observed, changes typical of nephritis are found in the urine, and bradycardia occurs.

Treatment of renal eclampsia

During the preeclamptic period, rest, limiting the amount of fluid and salt. Fasting days are recommended (500 g of milk per day or 500 ml of compote or jelly). Massive bloodletting (300-500 ml), administration of magnesium sulfate, intravenous infusions of glucose, dibazole, reserpine, natriuretics (hypothiazide, fonurit, lasix). Eufillin is administered 0.24 g intravenously. With a sharp arterial hypertension- drip infusion of arfonade. Distraction procedures ( foot baths, mustard plasters).

In a state of eclamptic attack - immediate reduction in pressure, administration of 40% glucose, administration of 25% magnesium sulfate intravenously (slowly, over 3 minutes or intramuscularly. The hypotensive effect of magnesium sulfate can be enhanced by the administration of dibazole, aminophylline (0.24 g) intravenously or aminazine intramuscularly To relieve seizures, chloral hydrate is prescribed as an enema.

In most cases, these measures are sufficient; if there is no effect, it is necessary to perform a spinal puncture.

After recovering from renal eclampsia, the patient must remain in bed, the amount of fluid and salt is limited for several days, active antihypertensive drugs are prescribed - magnesium sulfate (intramuscular), glucose (intravenous), dibazole, reserpine, hypothiazide; in case of persistent and significant hypertension (and the absence of massive hematuria), diathermy is performed lumbar region.

surgeryzone.net

Renal eclampsia

Consequently, in a number of kidney diseases, renal hypertension syndrome can come to the fore in the clinical picture of the disease and determine its course and outcome.

Eclampsia (from the Greek eclampsis - outbreak, convulsions) is most often observed with acute diffuse glomerulonephritis, but can also occur with exacerbation of chronic glomerulonephritis, nephropathy of pregnancy. In the pathogenesis of eclampsia, the main significance is given to increased intracranial pressure, swelling of brain tissue and cerebral vasospasm. In all of these diseases, eclampsia usually occurs during a period of severe edema and increased blood pressure.

Attacks are provoked by patients taking salty foods and unlimited fluid intake.

The first signs of approaching eclampsia are often unusual lethargy and drowsiness. Then a severe headache, vomiting, short-term loss of consciousness (amaurosis), speech, transient paralysis, confusion, and a rapid increase in blood pressure appear. Convulsions occur suddenly, sometimes after a cry or a noisy deep breath. At first these are strong tonic contractions, which then, after 1/2 - 1 1/2, are replaced by strong clonic convulsions (less often, only isolated convulsive twitchings of one or another muscle group are noted). The patient's face becomes cyanotic, the neck veins swell, the eyes squint to the side or roll upward, the tongue is bitten, and foam flows from the mouth. The pupils are dilated and do not react to light, the eyeballs are hard. The pulse is intense, rare, blood pressure is increased; at frequent attacks body temperature rises. Often observed involuntary urination and defecation.

Attacks of renal eclampsia usually last several minutes, rarely longer. In many cases, there are two or three consecutive attacks, then the patient calms down and remains in a state of stupor, deep stupor or coma for some time, and then comes to his senses. Sometimes, after awakening, amaurosis (blindness of central origin) and aphasia (speech disorder) persist for some time.

This is the classic picture of an eclamptic attack. However, it should be borne in mind that in some cases attacks occur atypically, without loss of consciousness or in an erased form - in the form of transient aphasia, amaurosis, and mild convulsive twitching.

Renal eclampsia must be differentiated from seizures of other origins. Convulsions of a similar nature are observed in epilepsy, a neurological disease of congenital or post-traumatic origin. However, with epilepsy there is no swelling or other signs of kidney disease, and seizures are usually observed for many years. Convulsions also occur in uremic coma, but in this case there is a typical history (presence of chronic kidney disease), signs of uremic intoxication, slow development over a number of days convulsive state; The very nature of the seizures is also different: they occur in the form of small fibrillary twitches.

Currently, effective methods have been developed to combat an attack of renal eclampsia. The attack ends almost immediately if the patient undergoes a suboccipital or spinal puncture and releases a certain amount of cerebrospinal fluid. Intracranial pressure decreases, the patient regains consciousness. The striking effect of spinal puncture confirms the importance of increased intracranial pressure in the pathogenesis of attacks of renal eclampsia. Bloodletting and intravenous administration of magnesium sulfate (10 ml of 25% solution), which lower blood pressure and reduce cerebral edema, also help to stop attacks of eclampsia.

Kidney failure (insufficientia renalis) - pathological condition, characterized by impaired renal function with a delay in the excretion of nitrogen metabolism products from the body and a disorder of water, electrolyte, osmotic and acid-base balance.

Acute renal failure (insufficientia renalis acuta) - sudden renal failure caused by acute damage to kidney tissue, for example, in shock, poisoning, infectious diseases; in most cases, reverse development is possible.

In the pathogenesis of acute renal failure and acute uremia, great importance is given to shock and the accompanying circulatory disorders, primarily in the kidneys. As a result of the anoxia that develops, dystrophic changes in the renal glomeruli and tubules. In other cases, when acute renal failure occurs as a result of poisoning or a severe infectious disease, its pathogenesis is largely due to the direct effect of toxic substances and toxins on the renal parenchyma. In both cases, the filtration of urine in the renal glomeruli is disrupted, the excretion of urine by the kidneys is reduced - oliguria occurs, in severe cases up to anuria. Potassium, sodium, phosphorus salts, nitrogenous products and some other substances are retained in the body.

Acute renal failure grows quickly and manifests itself severely general condition, vomiting, confusion, respiratory and cardiac dysfunction. Due to ischemia of the renal glomeruli, blood pressure may increase, and edema develops with anuria. If anuria and azotemia cannot be eliminated within a few days, death occurs. With a favorable course, diuresis subsequently increases, but the concentrating ability of the kidneys remains insufficient for some time; Gradually, kidney function normalizes and recovery occurs.

The clinical picture of acute renal failure varies somewhat depending on the nature of the disease that caused it. In many cases, acute renal failure occurs with a number of common symptoms, which makes it possible to distinguish this syndrome. There are 4 stages of acute renal failure: 1) the initial stage, lasting from several hours to 1-2 days, is clinically manifested mainly by symptoms of one disease (traumatic or transfusion shock, severe acute infectious disease, intoxication, etc.); 2) oligoanuric stage, manifested by changes in diuresis (to complete anuria), uremic intoxication, and water-electrolyte disturbances. When examining urine, proteinuria, cylindruria, and erythrocyturia are determined. The oligoanuric stage may end in the death of the patient or his recovery; 3) in the latter case - the polyuric stage - there is a sudden or gradual increase diuresis with low relative density of urine, a decrease in the content of residual products of protein metabolism in the blood, normalization of water-electrolyte balance, disappearance pathological changes in urine; 4) the recovery stage begins from the day of normalization of the content of residual nitrogen, urea and creatinine in the blood and lasts from 3 to 12 months.

Chronic renal failure (insufficientia renalis chronica) is a gradually developing irreversible renal failure caused by slowly increasing changes in the kidneys due to abnormalities of their development, metabolic diseases, chronic inflammation and etc.

The occurrence of chronic renal failure is caused by progressive nephrosclerosis. There is a latent period of chronic renal failure, when renal dysfunction is not clinically manifested and

are detected only by special laboratory methods, and there is a clear period manifested by the clinical picture of uremia.

In the latent period, the initial phenomena of renal dysfunction can be judged by conducting tests for concentration, dry eating and Zimnitsky tests; at the same time, a tendency is revealed for patients to excrete urine of a lower (below 1.017) and monotonous relative density - isohyposthenuria. Cleansing tests (“clearance”) allow us to identify initial reabsorption disorders renal tubules and filtration in the glomeruli. Minor renal dysfunction is also detected by radioisotope nephrography. It is believed that the first signs of renal failure in patients with chronic kidney disease appear only when the mass of functioning renal parenchyma decreases to at least 1/4 of its original value.

As renal failure progresses, changes in the daily rhythm of urination occur: isuria or nocturia is observed. Concentration and dilution tests reveal a significant impairment in the concentrating ability of the kidneys

Severe isohyposthenuria (the relative density of all urine portions ranges from 1.009 to 1.011, i.e., approaches the relative density of plasma ultrafiltrate

Primary urine); more pronounced disturbances of reabsorption and glomerular filtration are determined using purification tests and radioisotope nephrography. There is a gradual increase in the content of nitrogenous waste in the blood, and the content of residual nitrogen increases several times (normally 20-40 mg%). Laboratory testing allows us to determine the increase in the blood content of various protein breakdown products: urea (normally 20-40 mg%, and in case of renal failure increases to 200 mg% or more), creatinine (normally 1-2 mg%), indican (normally 0.02- 0.08 mg%). It is important to note that an increase in the level of indican in the blood is often the first and most reliable sign of chronic renal failure, since its level in the blood does not depend on the protein content in food and does not accumulate in tissues.

A moderate increase in the content of nitrogen breakdown products in the blood (azotemia) may not affect the patient’s well-being until a certain time. However, then a series of external changes, on the basis of which uremia can be clinically diagnosed. Some of the signs of uremia are due to the fact that insufficient renal function is partially compensated by more active participation in excretory processes skin, mucous membranes, digestive glands. Decomposition of urea secreted by mucous membranes respiratory tract and mouth, under the influence of bacteria present in them to ammonia, causes the appearance of a characteristic uremic odor from the mouth; in more severe cases, this smell can be detected when already approaching the patient’s bed. It is believed that a uremic odor can be detected when the concentration of residual nitrogen in the blood exceeds 100 mg% (i.e., more than 70 mmol/l).

Nitrogenous products, and primarily urea, are secreted by the gastric mucosa and decompose to form ammonia salts. These salts irritate the mucous membrane of the stomach and intestines - nausea and vomiting occur ( uremic gastritis), diarrhea (uremic colitis). Irritation of the mucous membrane of the respiratory tract by secreted products leads to laryngitis, tracheitis, and bronchitis. Severe dental gingivitis develops. Due to irritation, necrosis and ulceration form on the mucous membranes. On the patient's skin, one can often see the deposition of urea crystals in the form of a white thread, especially at the mouth of the sweat glands (at the base of the hair). An excruciating itching occurs, which forces patients to endlessly scratch the skin. Accumulating in the blood toxic substances are also secreted by serous membranes; Uremic pericarditis is especially characteristic, which is determined by listening to the heart with a stethoscope by the characteristic rough friction noise of the pericardium. This noise is usually

appears in the terminal period and indicates near death sick. According to the figurative expression of old doctors, the pericardial friction rub is the “death knell of the uremic.”

Due to general intoxication, memory and sleep are disrupted, fatigue and a dull headache appear, then drowsiness and apathy develop, and vision is impaired. When examining the fundus, narrowed arteries and dilated veins, swelling of the disc are visible optic nerve, in places whitish lesions (neuroretinitis). The development of neuroretinitis is primarily explained by trophic disorders due to spasm of the fundus vessels (as it is observed in the absence of uremia); However, uremic intoxication, which aggravates these changes, also has a certain significance. The pupils are constricted (different from eclampsia).

Metabolism is sharply disrupted: patients become cachetic; due to dystrophy, the functions of the liver and bone marrow change; toxic uremic anemia occurs, usually accompanied by leukocytosis, and thrombocytopenia. Due to a decrease in the number of platelets in the blood, disorders in the blood coagulation system and increased capillary permeability as a result of toxicosis, there is a tendency to bleeding (from the nose, gastrointestinal tract, urinary tract, uterus), and skin hemorrhages occur. Body temperature decreases slightly.

Subsequently, intoxication increases, the patient’s consciousness is lost, he falls into a coma (uremic coma), periods of severe lethargy alternate with periods of excitement, hallucinations; noisy, rare breathing occurs with very deep breaths (Kussmaul breathing); less often, peculiar breathing with variable increase and decrease is observed breathing movements(Cheyne-Stokes breathing). In the final stage, the patient is in deep coma, at times, isolated muscle twitches occur, and after a while death occurs.

There is currently no generally accepted classification of chronic renal failure. A. P. Peleshchuk et al. (1974) distinguish 3 stages of it: initial (1) with a slight increase in the content of residual nitrogen (up to 60 mg%) and creatinine (up to 1.5-3.0 mg% in the blood) and a moderate decrease in glomerular filtration; pronounced (2A and 2B) with more significant azotemia and electrolyte disturbances and terminal (3), manifested by a clear clinical picture of uremia.

Uremia (from the Greek urina - urine and haima - blood) - urinary bleeding - severe

intoxication of the body due to total failure of kidney function. Acute uremia occurs due to poisoning with nephrotoxic poisons (compounds of mercury, lead, carbon tetrachloride, barbiturates, etc.), transfusion of incompatible blood and massive hemolysis, states of shock. Chronic uremia develops in the final stage of many chronic kidney diseases ending in nephrosclerosis: chronic glomerulonephritis, pyelonephritis, renal vascular lesions, etc.

The pathogenesis of uremia is not well understood. It has been established that with uremia, protein breakdown products accumulate in the blood - nitrogenous wastes: urea, uric acid, creatinine. The content of indican, phenol and other aromatic compounds, which are formed in the intestines during decay and enter the blood through the intestinal wall, increases. Normally, these substances are excreted from the blood by the kidneys. Various compounds of sulfur, phosphorus, magnesium and other substances accumulate; ionic balance is disrupted. Due to the accumulation of acidic foods in the body and the disruption of the kidneys' production of ammonia, which neutralizes acids, acidosis develops. Uremia is accompanied by severe liver damage and metabolic disorders.

However, none of the listed processes can be considered the main one in the pathogenesis of uremia. Thus, intravenous administration of urea in large doses does not lead to uremia, but only increases urine output, and therefore urea preparations at one time

» Emergency conditions » Emergency care for an attack of renal eclampsia, treatment, medications

Emergency care for an attack of renal eclampsia, treatment, medications

If during an attack of renal eclampsia the patient was not in the hospital, he must be immediately hospitalized (in the case of acute nephritis in the therapeutic or nephrological department, and in the case of nephropathy in pregnant women - in the obstetric department). In this case, it is necessary to prevent tongue bite and retraction (insert a spatula or spoon wrapped in a thick layer of gauze between the teeth, push the lower jaw forward), damage to the head and other parts of the body (support the head, place a pillow or blanket).

Immediately using the venipuncture method (if it fails, then using the venesection method), it is necessary to perform a fairly massive bloodletting (300-500 ml) to lower blood pressure and reduce cerebral edema. At the same time, 40-60 ml of a 40% glucose solution and 10-15 ml of a 25% magnesium sulfate solution are administered intravenously (slowly, over 3-4 minutes). The latter has a vasodilator, anticonvulsant effect, and also, along with hypertonic glucose solutions, reduces cerebral edema. Along with intravenous administration, intramuscular administration of 15-20 ml of a 25% solution of magnesium sulfate is also used.

If an attack of eclampsia does not stop, after 1-2 hours you need to repeat the intravenous infusion of glucose and magnesium sulfate in the same doses. It must be remembered that in large doses, magnesium sulfate can have a depressant effect on the respiratory center. In such cases, a magnesium antagonist, calcium, is administered (10 ml of 10% calcium chloride solution intravenously). Additionally, to relieve frequently recurring convulsive attacks, 1 ml of a 2.5% solution of aminazine is administered intravenously, 1 ml of a 1% solution of morphine hydrochloride is administered subcutaneously, 50 ml of a 3-5% solution of chloral hydrate is administered as an enema, if necessary, up to 7 g of chloral hydrate and 0.025-0 .03 g of morphine hydrochloride per day.

If cerebral edema is combined with general edema and left ventricular failure, 60 mg of furosemide (Lasix) should also be administered slowly intravenously, continuing its intravenous drip administration if necessary. For renal eclampsia, dibazole (3-4 ml of 1% solution or 6-8 ml of 0.5% solution intravenously), aminophylline (10 ml of 2.4% solution intravenously repeatedly) are also used.

In most cases, with the help of the measures listed above, an attack of renal eclampsia is stopped. It is relatively rare to resort to lumbar puncture, which is usually performed in a hospital setting. The release of cerebrospinal fluid should be done slowly and not sharply reduce intracerebral pressure. After a spinal puncture, intracranial pressure decreases and eclamptic seizures stop. After stopping the attack, the patient needs hospital treatment. In the first days, he needs to be prescribed an achloride diet, and then a diet limiting sodium chloride to 3-4 g per day and liquid to 1 liter per day (in the first 1-2 days, classic treatment with hunger and thirst can be carried out). For high blood pressure, antihypertensive drugs (reserpine, dibazole, aldomet or dopegit, clonidine, etc.) are prescribed in appropriate doses. For severe edema, diuretics are indicated; for heart failure, cardiac glycosides are indicated.

Is the most severe complication acute nephritis and is characterized comatose state, clonic and tonic convulsions.

Acute jade observed in children aged 7 to 12 years, less often in children aged 1 to 3 years. It is rare in infancy.

At the core renal eclampsia are changes in the central nervous system- spasm of cerebral vessels and rapidly developing cerebral edema. Therefore, it is more correct to call eclampsia angiospastic encephalopathy.

The tendency to eclampsia in acute nephritis in children is explained by the easier formation of edema or swelling of the brain in childhood. At the same time, their arterial hypertension is less pronounced.

Symptoms: headache, nausea, sometimes vomiting. Blood pressure in children increases slightly, sometimes it remains normal. More often, the pressure is increased only relatively compared to the numbers before the attack. An attack of eclampsia often begins after a cry or deep noisy breath. After 1/2-1 minute, clonic and tonic convulsions of the whole body appear. The child's pallor is replaced by a sharp cyanosis of the face. Breathing becomes rare, sometimes intermittent due to spasms of the respiratory muscles. The pupils are dilated and do not react to light. When examining the fundus, congestion is noted. Consciousness is darkened. The attack lasts several minutes, usually repeating several times on the same day (2-10). Seizure attacks, as their number increases, become less severe and shorter in duration. The symptoms of eclampsia usually end within the first or second day. The pulse is usually slow and tense blood pressure usually higher than before the attack. The amount of residual blood nitrogen is normal or slightly increased, the amount of chlorides is reduced.

Protein, red blood cells, and casts are detected in the urine. During an attack of eclampsia, spinal pressure increases to 500 mm of water column (versus 120-200 mm normally).

Sometimes children have only the equivalent of a seizure in the form of small convulsive movements, weakness of one limb or hemiparesis with positive symptom Babinsky, mild blurred vision, severe headache and vomiting.

Differential diagnosis. You should remember about epilepsy, which is also rare in children and is characterized by the appearance of short-term clonic and tonic seizures with loss of consciousness. In this case, foamy saliva is often released from the mouth, tongue biting and involuntary release of urine and feces often occur.

To distinguish epilepsy, anamnesis is essential, since epilepsy is a chronic disease, the anamnesis contains indications of similar phenomena in the past, and most importantly, a clinical examination of the child does not give signs of acute nephritis.

Urgent Care. You should start with bloodletting, administration of glucose and magnesium sulfate. Bloodletting for eclampsia is a reliable emergency measure. It reduces intracranial pressure and should be massive (100-150 ml). Following bloodletting, 10-15 ml of a 40% glucose solution is injected into a vein, which obviously counteracts angiospastic conditions and has a neutralizing effect. Intravenous or intramuscular administration of a solution of magnesium sulfate dilates the vessels of the kidneys, lowers blood pressure, increases diuresis and reduces neuromuscular excitability. A 25% heated solution of 0.25 ml per kilogram of the child’s weight is used intramuscularly; intravenously 1% solution, 5-10 ml per kilogram of child’s weight. If these measures do not produce any effect, only then do they resort to lumbar puncture in order to reduce intracranial pressure. The cerebrospinal fluid should be released until it flows out in rare drops.

In order to reduce the excitability of the central nervous system, enemas with a 2% solution of chloral hydrate are recommended - 20-30 ml, depending on the age of the child. In case of heart failure, intravenous administration of strophanthin with glucose is recommended.

Massive doses of ascorbic acid (200-300 mg), vitamin K (for hematuria), as well as a complex of vitamins B (B1, B2) are recommended. When providing care at home, it is necessary to bleed the sick child and immediately hospitalize him on a stretcher.

Treatment. The basis for the treatment of eclampsia should be the unloading of water-salt metabolism, which is achieved by prescribing hunger and thirst for 1-2 days with a gradual transition to a diet with a restriction of sodium chloride and protein substances (until the edema completely disappears). The diet should correspond to the dietary regimen for acute nephritis, including 2 sugar days per week.

Renal eclampsia is acute condition with a number of characteristic signs, which are based on disorders of the brain (encephalopathy with swelling of brain tissue as a result of a sharp and prolonged spasm of arterioles). This syndrome is different:

  • convulsions (clonic and tonic);
  • clouding or loss of consciousness (coma);
  • an increase in blood pressure to critical levels;
  • pronounced metabolic disorders in the body.

Renal eclampsia is a fairly rare but very dangerous disease. As a rule, it manifests itself in pregnant women as a complication in the last trimester, as well as in people with chronic renal pathologies. In early childhood, the pathology practically does not occur; in junior and senior schoolchildren and adolescents it is diagnosed sporadically, that is, only in isolated cases with acute forms jade

Causes

  1. Nephropathy in pregnant women (impaired kidney function).
  2. Chronic nephritis.

Factors that provoke renal eclampsia include:

  • consumption by pregnant women and sick people of significant amounts of salty, spicy, spicy foods or large volumes of liquid;
  • disturbances in the functioning of the endocrine system;
  • neuropsychic overexcitation, stress;
  • changes in the composition of the blood (increase in its viscosity, release large quantity platelets, enhancing their coagulation processes).

Development mechanism

The syndrome develops against the background of vascular spasm and tissue swelling in the brain. This occurs due to sodium retention in the body’s cells, accumulation and long-term retention of water in them. This process triggers mechanisms for raising arterial and intracranial pressure, brain hypoxia, and ischemia of its tissues. Therefore, the work of brain structures (both brain and spinal cord) is disrupted, a significant narrowing of its functions occurs, and everyone suffers greatly internal organs(heart, lungs, liver).

Renal eclampsia is characterized by:

  • increased tissue permeability in the body, which is expressed in the formation of internal and external edema;
  • metabolic disorders - accumulation harmful substances formed as a result of decomposition reactions (acidosis);
  • lack of normal filling of blood vessels, decrease in blood volume in them;
  • increased loss of fibrin and its sedimentation in the cells of the body, which changes the normal process of blood clotting;
  • hemorrhages (single and multiple petechial) in the brain and (or) internal organs.

Clinic, symptoms of renal eclampsia

In medicine, there is such a thing as preeclampsia (a triad of signs signaling the danger of a crisis) - this is:

  • increased blood pressure;
  • the appearance of severe swelling;
  • protein in urine.

Any doctor who discovers a combination of these symptoms is obliged to “sound the alarm” and immediately begin therapeutic measures. The main thing is to prevent an impending attack or provide emergency assistance in a timely manner (preferably at the very beginning). Delay in this case can lead to the death of the patient, and in pregnant women, the fetus.

Prodromal (preceding) signs of renal eclampsia, in addition to the main ones, include:

  • double vision or a white veil in front of them;
  • dizziness and migraine-like pain;
  • lethargy and confusion;
  • the occurrence of delirium, hallucinations, fainting;
  • decreased desire to urinate;
  • nausea, vomiting, heaviness in the epigastrium.

With chronic pathologies in the renal system, preeclampsia can last up to 4 days, in other cases the attack develops rapidly within several hours. After sharp jump pressure, patients develop convulsions according to a certain “scenario”:

  • twitching of individual muscles (1-3 min);
  • trismus of the whole body with further loss of consciousness, with pronounced bluish discoloration of the skin (cyanosis), dilated pupils (up to 30 seconds);
  • clonic contraction of the entire body muscles, with signs of respiratory and heart failure (up to 2 minutes);
  • involuntary urination and bowel movements, return to consciousness; with irreversible changes in the body, patients die during this period from suffocation, cardiac arrest, and extensive hemorrhages in the brain.

The number of convulsive seizures can range from 1 to 10 or more.

In the recovery phase, patients are left with a foggy consciousness, speech and coordination disorders are observed, they do not remember their feelings during attacks, they are disoriented in space and perception of the world.

Objective symptoms of eclampsia are characterized by:

  • slow heart rate;
  • high tendon reflexes;
  • congestion in the fundus;
  • When cerebrospinal fluid is taken (puncture), an increase in pressure in it is diagnosed.

Atypical and mild, renal eclampsia can occur in people with chronic nephritis, without pronounced convulsions and “turning off” consciousness (it leaves patients for seconds). Urine tests in such patients do not show a large number of protein fractions, although blood pressure is significantly elevated and there may be edema.

Diagnostics

It is important to distinguish seizures in eclampsia from seizures in epilepsy. The distinctive signs of eclampsia are:

  • decreased heart rate;
  • swelling on the body;
  • increase in blood pressure.

With epilepsy, the pulse is normal or rapid, there is no swelling or hypertension, and visible marks on the tongue from previous attacks may remain.

To differentiate from traumatic coma or stroke, urine analysis is used; in the latter cases, protein is not detected in it, and observations also show the presence of paresis and (or) paralysis in patients. In eclampsia they are not present.

Distinctive feature this state from uremic coma is the absence of organic changes in the kidneys (wrinkling, reduction), as well as dystrophy and hypertrophy of the myocardium.

The main laboratory method for determining the development of renal eclampsia is to study urine (for protein, for creatinine) and blood (biochemistry, for electrolytes, for pH balance, for urea, for platelet levels, etc.).

Instrumental examinations include: ultrasound, CT, X-ray, MRI of the kidneys and other organs.

Treatment

Attacks of renal eclampsia can only be stopped in a hospital; if there is any suspicion of them, patients are urgently hospitalized. Therapeutic procedures include:

  1. The diet is salt-free in the first weeks, and then with limited sodium chloride intake.
  2. Antihypertensive drugs as prescribed by a doctor.
  3. Decongestants, including folk ones. You can drink kidney tea (Orthosiphon stamen), the regimen will be prescribed by a specialist.

Romanovskaya Tatyana Vladimirovna

Main syndromes in kidney diseases

- nephrotic syndrome

- nephritic syndrome

- renal arterial hypertension syndrome

- renal eclampsia syndrome

- renal failure syndrome (acute and chronic)

Nephrotic syndrome

This is a clinical and laboratory symptom complex, clinically characterized by peripheral or generalized edema to anasarca, and laboratory- proteinuria more than 3.5 g/day or more than 50 mg/kg/day, hypoproteinemia (below 55 g/l), hypoalbuminemia (below 35 g/l), dysproteinemia, hyperlipidemia and lipiduria.

Etiology

I. Primary NS – in the background primary diseases kidneys (only the kidneys are affected):

1) Glomerulonephritis (chronic). Morphological variants: minimal change disease (small process podocyte disease), focal segmental glomerulosclerosis and membranous nephropathy.

2) Primary amyloidosis.

H) Lipoid nephrosis (more often in children) is a variant of CGN (minimal change disease).

4) Kidney tumor (hypernephroma) - most often manifested by hematuria, sometimes it’s just a finding. However, with any malignant diseases, glomerulonephritis can develop, morphologically - membranous nephropathy.

I I. Secondary NS – secondary kidney damage occurs against the background of other diseases:

1) Infectious group:

Syphilis;

Malaria;

Tuberculosis;

Leishmaniasis;

Septic endocarditis is the cause of glomerulonephritis;

Chronic inflammatory and suppurative diseases of the lungs and bones are the cause of secondary amyloidosis;

Rheumatism;

Periarteritis nodosa;

Goodpasture's syndrome;

Hemorrhagic vasculitis;

Nonspecific ulcerative colitis;

NB! All of the above are accompanied by the development of glomerulonephritis

Diabetes;

Tumors of extrarenal localization;

Thrombosis of the veins and arteries of the kidneys, aorta, inferior vena cava

Periodic illness;

drug disease,

Diffuse toxic goiter.

Pathogenesis.

The main role in pathogenesis is played by immune mechanisms.

Pathogenesis.
A model of acute nephritic syndrome is poststreptococcal glomerulonephritis. The presence of a focus of infection (upper respiratory tract, skin, middle ear) caused by group A vetta-hemolytic streptococcus (strains 1, 4, 12, 29) is necessary. AT are produced against streptococcal Ag (for example, M-protein of the cell wall), Ag-AT complexes are deposited in the walls of the glomerular capillaries, activating the complement system, and leading to immune inflammation and damage to kidney tissue.

Pathomorphology - diffuse proliferative endocapillary glomerulonephritis

Infiltration of glomeruli by neutrophils and monocytes

The walls of the glomerular capillaries are thinned and fragile

Discrete deposits of protein (electron-dense deposits in electron microscopy) protruding from outer surface capillary walls into the capsule lumen and corresponding to electron-dense deposits observed by electron microscopy

Segmental extracapillary proliferation (crescents) is detected in several glomeruli; diffuse formation of crescents is uncharacteristic.

Red blood cell casts are found in the lumens of the distal tubules

Granular deposits of IgG in the peripheral loops of capillaries and in the mesangium, accompanied by deposits of the complement component C3 and properdin and, less commonly, deposits of Clq and C4.

Clinical picture.

The clinical picture of nephritic syndrome can be considered using the example of acute glomerulonephritis and consists of

1 - edematous syndrome

2 - arterial hypertension syndrome

3 - urinary syndrome

4 - pain syndrome

5 - general intoxication syndrome

The disease manifests itself 1-6 weeks after streptococcal infection.

Edema syndrome

Edema(85%). Swelling of the face (especially the eyelids) is most common in the first half of the day. Swelling is usually located on the face, appears in the morning, and decreases in the evening. Before visible edema develops, about 2-3 liters of fluid can be retained in the muscles and subcutaneous tissue. Hidden edema is detected using the McClure-Aldrich test (carried out to identify hiddenswelling and a tendency to edema due to the accelerated resorption of papules formed with intradermal administration of an isotonic solution sodium chloride. Normally, the papule resolves within 60 minutes. If the patient’s body is prone to edema, the papule disappears in less than 40 minutes. due to increased tissue hydrophilicity due to increased capillary pressure.).

Edema is caused by:

    increased capillary tissue permeability due to increased hyaluronidase activity leading to depolymerization hyaluronic acid main substance connective tissue And decreased glomerular filtration(as a consequence immune inflammation and affects the capillaries of the whole body) is a trigger for the formation of edema, which in turn triggers other pathogenetic mechanisms of fluid retention:

ü increased tubular reabsorption of sodium and water,

ü increased secretion of aldosterone and antidiuretic hormone,

Oligoanuria(52%) in combination with thirsty– are caused by fluid retention in the body and the development of hypovolemia, are possible more often in the first days of the disease and usually last 2-3 days. However, hypovolemia is not a characteristic feature of nephritic syndrome, because the mechanism of edema differs from nephrotic edema: as a rule, it is not massive and the blood volume does not fall.

Arterial hypertension syndrome (symptomatic, parenchymal)

Arterial hypertension(82%). Blood pressure is usually moderately elevated (160/100 mmHg) in 60–70% of patients. Long-term persistent increase in blood pressure is prognostically unfavorable. Leading importance in the pathogenesis of hypertension in nephritic syndrome is given to the retention of sodium and water, an increase in the volume of circulating blood and stroke volume of the heart, and activation of the renin-angiotensin-aldosterone system. Clinically manifested by headache and other symptoms characterizing damage to the brain and heart against the background of high blood pressure.

Urinary syndrome

Urine turns the color of meat slop, which is related to g ematuria(100%). Macrohematuria occurs in 30% of cases (urine the color of meat slop). The pathogenesis of hematuria in these patients is mainly associated with damage to the glomerular basement membranes and an increase in their permeability. With glomerular hematuria, more than 80% are altered red blood cells. The volume of urine decreases (oliguria, possibly anuria, but this is already evidence of the development of acute renal failure).

Pain syndrome . Pain in the lumbar region has varying degrees of severity, often symmetrical, depending on the swelling of the kidneys and stretching of their capsule, and urodynamic disturbances. The pain is dull, constant, intensifies when standing and moving, decreases when lying on your back.

Other signs

Increased body temperature (weight gain is associated with edema).

Weakness.

When studying other organs and systems:

Signs of infectious diseases of the respiratory tract (including acute tonsillitis, pharyngitis)

Signs of scarlet fever

Signs of impetigo (pustular skin disease caused by streptococci and staphylococci). In the anamnesis.

General inspection.

The condition is severe, consciousness is often depressed, especially with the development of acute renal failure.

Pallor of the face and pasty eyelids (facies nefritica) are noted.

Edema is one of the components of nephritic syndrome. The loose fatty tissue of the eye sockets and eyelids swells the most.

The skin is pale, a hemorrhagic rash may appear as a manifestation of an active autoimmune process.

Kidneys: When examining the lumbar region, there are no changes; upon palpation, sharp pain in the kidneys is noted and their size may increase, but not always.

Positive Pasternatsky symptom.

The cardiovascular system. A characteristic feature OGN (with its classic version) is bradycardia, which is combined with hypertension. It is detected already in the first days of the disease, especially in persons young, lasts for 1-2 weeks, sometimes longer.

On palpation, the apical impulse in acute nephritic syndrome is strong, high; in chronic nephritic syndrome - strong, high, diffuse, resistant.

The combination of bradycardia, hypertension, and edema serves as an important differential diagnostic sign for distinguishing between edema caused by glomerulonephritis and many heart diseases, in which edema is usually combined with tachycardia.
On auscultation: the rhythm is regular, in the presence of electrolyte disturbances there may be disturbances heart rate, the rhythm is rare, often detected weakening of the first tone, accent of the second tone on the aorta ( as a manifestation of arterial hypertension in nephritic syndrome).

Additional Research

Laboratory

UAC: hypochromic anemia, leukocytosis, accelerated ESR

Blood test: dysproteinemia, hypergammaglobulinemia. In some cases, the appearance of C-reactive protein, sialic acids, credits antistreptococcal antibodiesASL-O, ASC, ASG.

OAM: oliguria, “meat slop” color, hypersthenuria, gross hematuria, cylindruria (due to hyaline casts), erythrocytes (red blood cells, both fresh and leached), leukocyturia, proteinuria from 0.5 to 2 g/m2/day (weak (up to 1 g/day) or moderate proteinuria (up to 2 g/day)) these changes are included in the urinary syndrome.

Kidney function test: Rehberg–Tareev test decreased glomerular filtration. Appearing in the first hours and days from the onset of the disease and disappearing later than other clinical and laboratory signs OGN, proteinuria and hematuria most clearly reflect the dynamics of the disease, its activity, course, and recovery processes. Zimnitsky test, used: creatinine, urea, potassium ( functional tests are not changed in uncomplicated nephritic syndrome).

Immunological blood test reveals increased levels of JgG, Jg M, rarely JgA, circulating immune complexes, high titers of antibodies to streptococcal antigens. Hypocomplementemia (SZ content) - 83% of cases.

Also characteristic blood coagulation disorders hypercoagulation is observed (shortening thromboplastin time, increasing prothrombin time, inhibition of fibrinolytic activity of the blood).

Instrumental

Kidney ultrasound: the size of the kidneys is increased or unchanged, echogenicity is reduced.

Kidney biopsy: Biopsy with subsequent examination of the nephrobiopsy allows a nosological diagnosis to be made. It is carried out according to strict indications: differential diagnosis With chronic nephritis, including systemic connective tissue diseases, rapidly progressive glomerulonephritis. Acute glomerulonephritis is characterized by the following morphological data: a picture of diffuse proliferative endocapillary glomerulonephritis, infiltration of the renal glomeruli with netrophils and monocytes, electron-dense deposits of immune complexes, etc. etc.

Kidney scan: Decreased isotope absorption.

ECG : changes are varied and are determined by the severity of hemodynamic and electrolyte changes. Low voltage, elongation is often observed P-Q interval, biphasicity and flattening of the T wave, shift of the S–T interval, overload
left ventricle and possibly rhythm disturbances.
Ocular fundus: narrowing of the arteries, dilation of the veins, signs of swelling of the optic nerve nipple.

ECHO-KG: signs of arterial hypertension.

Renal hypertension syndrome

This is a condition in which systolic pressure exceeds 140 and diastolic pressure exceeds 90 mmHg. Art., arising as a result of various pathological processes in the kidneys and urinary tract.

Kinds:

Vasorenal (or renovascular)

Atherosclerosis of the renal artery

Fibromuscular dysplasia of the renal artery

· Structural anomalies renal arteries

Vasculitis with damage to the renal arteries

Renal artery thrombosis

Compression of the renal arteries

Renoparenchymatous

Glomerulonephritis

· Pyelonephritis

Amyloidosis of the kidneys

Nephropathy of pregnancy

· Diabetic nephropathy

· Other kidney diseases

SAH associated with urodynamic abnormalities (outflow of urine), the so-called " urological hypertension"(urolithiasis, congenital kidney defects, hydronephrosis, prostate adenoma, reflux nephropathy, etc.);

Mixed hypertension.

Their occurrence is associated both with the defeat of the renal tissue, and with impaired patency of the kidney vessels (nephroptosis, kidney tumors and cysts, a combination of congenital anomalies of the kidneys and their vessels, etc.).

Main pathogenetic mechanisms:

І activation of RAAS pressor systems

Increased production of renin by the UGA of the kidneys during ischemia

Activation of the RAAS

Peripheral arteriolospasm

Increased production of aldosterone

Sodium and water retention

II water retention and accumulationNa(accumulation of Na in the walls of blood vessels leads to swelling of the wall, increased sensitivity vascular wall to KA and increase in OPSS)

ІІІ inhibition of depressor systems; decrease in the synthesis of peripheral vasodilators (kinins, prostaglandins) in the kidneys.

Clinical picture.

Symptoms of increased blood pressure are nonspecific. The most typical complaints of patients with hypertension are:

- from the side of the heart:

pain in the heart area, palpitations, a feeling of interruptions in the functioning of the heart. Angina pectoris may occur due to the accelerated development of atherosclerosis, sharp chest pain during aortic dissection, shortness of breath and other signs of acute and chronic heart failure;

- from the side of the brain:

headaches of various types and origins; dizziness, memory impairment, noise in the head, irritability, fatigue, periodic weakness, depressed mood; flashing “fly spots” before the eyes and other signs of visual impairment, decreased performance;

- from the kidneys:

swelling of the face in the morning, hematuria and nocturia, symptoms associated with the development of chronic renal failure;

Complaints related to the underlying disease in cases of symptomatic renal arterial hypertension include:

swelling on the face, pain in the lumbar region, hematuria, nocturia, renal colicfor kidney diseases and urinary tract infections.

sharp muscle weakness, polydipsia, polyuria, paresteria and convulsions with primary hyperaldosteronism – with pathology of the adrenal glands;

episodes of paroxysmal sweating, headaches, anxiety, palpitations ( pheochromocytoma) – with pathology of the adrenal glands;

General inspection.

Patient position in most patients active.

In a relatively small proportion of patients, usually in the later stages of the disease, orthopnea position, which, along with rapid breathing (tachypnea) or suffocation, moist rales in the lungs, indicates the occurrence of left ventricular failure. More often it develops after an MI or during a complicated hypertensive crisis with an unusually high rise in blood pressure and LV overload.

Color of the skin pale, with chronic renal failure with a yellowish tint due to the accumulation of urochromes in the skin

Facies nephritica- - round, puffy, swollen face and eyelids, narrow palpebral fissures

Peripheral edema, pale, soft, mobile.

Inspection, palpation and percussion of the heart

The apex beat and the boundaries of the heart are not changed, the formation concentric myocardial hypertrophy The LV leads to an increase in the force of the apical impulse. Its localization, as well as the left border of the relative dullness of the heart, long time may remain almost unchanged until LV dilatation occurs ( eccentric LV hypertrophy)

A progressive decrease in the contractility of the LV myocardium is accompanied by significant (myogenic) dilation of L G. Reinforced the apex beat shifts to the left and becomes diffuse. The left border of the relative dullness of the heart also shifts to the left.

Percussion sometimes reveals extension vascular bundle in the second intercostal space, conditioned expansion of the aorta, its lengthening and reversal, characteristic of many patients with hypertension.

Auscultation of the heart

I heart sound. In the initial stages of the disease, characterized by quite high speed contractions of the LV myocardium, and its hypertrophy is moderately expressed, as a rule, detected loud 1st heart sound. With a progressive increase in the mass of the LV myocardium, the development of LV dilatation and the occurrence of relative failure mitral valve there is a noticeable decrease in the volume of the first tone, due to a decrease in the rate of isovolumic contraction of the LV. Low-frequency components begin to predominate in tone I, and it acquires the character of a “dull” tone.

II heart sound is accentuated on the aorta, What primarily due to high blood pressure.

Additional tones. Myocardial hypertrophy LV is naturally accompanied by more or less pronounced diastolic dysfunction. The latter, as is known, is accompanied by a significant slowdown in early ventricular filling (during the rapid filling phase) and an increase in the atrial filling fraction (atrial systole). As a result, in the initial stages of the disease, sounds are often heard at the apex. pathological IV heart sound.

Subsequently, when there is a decrease in LV contractility, it develops systolic dysfunction and severe LV dilatation, at the top is determined pathological III heart sound associated with volume overload of the ventricle, characteristic of late stages diseases.

Noise. Functional systolic murmur on the aorta(II intercostal space to the right of the sternum) - a fairly common finding in patients with hypertension . The murmur is associated with the expansion of the aorta and the presence of atherosclerotic changes in its wall, which is accompanied by turbulent blood flow.

If the systolic murmur is heard at the apex, is carried to the left axillary region and is combined with a weakening of the first tone and an increase in the size of the left atrium, we are talking about relative mitral valve insufficiency.

Arterial pulse

The arterial pulse with SPAH is rare, regular, full, intense, large.

Tachycardia and arrhythmias are often detected (during the stage of LV decompensation, as well as due to the development of electrolyte disturbances).

Arterial pressure

Blood pressure measurement is key in the diagnosis of SPAH. Hypertension is diagnosed when blood pressure is above 140/90 mm. Hg Art. Characterized by a persistent increase in diastolic pressure, a malignant course of hypertension with high blood pressure numbers.

Kidney examination necessary, first of all, to exclude some symptomatic (renal) hypertension. The method of palpation of the kidneys in some cases makes it possible to detect kidney enlargement (polycystic disease, pyelonephritis, urolithiasis complicated by hydronephrosis, etc.).

Auscultation of renal vessels makes it possible to detect systolic noise in the projection of the renal arteries to the anterior abdominal wall , caused by their stenosis, which gives rise to a more in-depth study of the patient for renovascular hypertension.

Neurological research. When conducting a general examination of a patient with hypertension, one should always remember the need to identify focal neurological symptoms (paresis, paralysis, smoothness of the nasolabial fold, deviation of the tongue, pathological reflexes, nystagmus, etc.).

Data from additional research methods.

ECG:

ECHO-KG: signs of LV hypertrophy

X-ray of the OGK: signs of left ventricular hypertrophy

Daily blood pressure monitoring: Blood pressure≥140 mm Hg. art., blood pressure≥90 mm Hg. Art.

Duplex study of the renal arteries:

Angiography of the renal arteries: signs of renal artery stenosis

Fundus examination: hypertensive retinopathy (narrowing of arteries, dilation of veins)

Additional methods allowing us to clarify the genesis of symptomatic arterial hypertension. If symptomatic renal hypertension is suspected, it is necessary to conduct additional research methods aimed at identifying renal pathology.

Renal eclampsia syndrome

This (eclampsia - Greek outbreak, sudden occurrence) is a convulsive syndrome.

Risk factors

· Edema syndrome

Symptomatic renal arterial hypertension

Contribute to development:

Hypervolemic cerebral edema

Increased intracranial pressure

Causes:

Glomerulonephritis

Nephropathy of pregnancy

Clinical picture.

Preeclampsia: characterized by cerebral syndrome caused by cerebral edema, its characteristic manifestations: headache, nausea vomit, fog before the eyes, decreased or impaired vision. P increased muscle and mental excitability, motor restlessness: decreased hearing loss, insomnia, drowsiness, lethargy.

Extreme manifestation of cerebral syndrome angiospastic encephalopathy ( eclampsia). An attack of eclampsia is provoked loud sound, bright light and other external influences.

The main symptoms of eclampsia: after a scream or a noisy deep breath, first tonic and then clonic convulsions of the muscles of the limbs, respiratory muscles and diaphragm appear; total loss consciousness; cyanosis of the face and neck; swelling of the neck veins, pupils are wide, foam flows from the mouth, breathing is noisy, pulse is rare, blood pressure is high.

Objective data:

Consciousness in preeclampsia is inhibited,

with eclampsia there is no consciousness, the position is passive

Pale skin

Swelling of the face, limbs, torso

Tonic and clinical seizures

Tongue bitten

Foaming at the mouth

Swelling of the jugular veins

Hard eyeballs

Pupils are dilated and do not respond to light

Noisy, rare breathing, Kussmaul breathing (as a result of high ICP and cerebral edema)

High blood pressure

Bradycardia (as a consequence of high ICP and cerebral edema)

Data from additional research methods

UAC: within normal limits or hypochromic anemia associated with the underlying disease, accelerated ESR

OAM: proteinuria, high density urine, hyaline casts

Blood pressure measurement: high blood pressure

ECG: signs of LV overload and bradycardia

Fundus examination: papilledema, papilledema

Spinal tap: high blood pressure