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Query: UMLS:C0023890 (cirrhosis)
 42,195 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

In a double-blind, randomized study the efficacy of lactulose was compared with neomycin-sorbitol in 45 episodes of acute nitrogenous portal-systemic encephalopathy (PSE) induced by dietary protein, azotemia, or gastrointestinal hemorrhage. All patients had underlying cirrhosis, and at the time of randomization had encephalopathy of at least grade 2 severity and arterial ammonia concentrations greater than 150 microgram/100 ml. Two thirds of the patients in each group returned to normal mental status and more than 80% in each group showed at least one grade improvement in mental state. In addition, there was equivalent improvement in asterixis, in the performance of the Number Connection Test, in the electroencephalographic pattern, and in arterial ammonia concentration. The principal difference between the two groups was a greater reduction in stool pH after lactulose therapy than after neomycin-sorbitol therapy. One patient randomized to neomycin-sorbitol had to be withdrawn from the study because of persistent vomiting related to the administration of the medication. Otherwise there were no complications attributable to therapy in either group. These data suggest that neomycin-sorbitol and lactulose are equally effective in the treatment of acute nitrogenous portal-systemic encephalopathy.
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PMID:Neomycin-sorbitol and lactulose in the treatment of acute portal-systemic encephalopathy. A controlled, double-blind clinical trial. 35 73

Patients with refractory ascites and HRS should be considered to present an urgent indication for peritoneovenous shunting. The shunt offers a method of continuous reinfusion of ascitic fluid which corrects avid sodium retention, oliguria and azotemia. Severe encephalopathy, jaundice or peritoneal sepsis--common complications of cirrhosis--contraindicate installation of the shunt before improvement occurs. Associated cardiac disease does not contraindicate the use of the shunt provided that ascitic fluid is removed at the time of operation and large amounts of diuretics are used. This operation has also proved useful in ascites attributed to causes other than cirrhosis. The main complications include disseminated intravascular coagulopathy, hepatic coma and sepsis in a few patients. Results of a randomized prospective study indicate that the shunt should probably be considered in patients with diet-resistant massive ascites even before they prove to be refractory to diuretic therapy.
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PMID:Ascites: its correction by peritoneovenous shunting. 37 15

The hepatorenal syndrome is defined as the spontaneous onset of progressive renal failure in patients with far advanced hepatic disease, usually on the basis of cirrhosis. The clinical characteristics of the syndrome include azotemia, oliguria, hyponatremia, low urinary sodium excretion and the absence of abnormal findings in the urinary sediment. Although the results of a large number of studies suggest that abnormal histologic features in the kidneys are infrequent, changes such as glomerulosclerosis, degeneration of tubular cells and alterations in the basement membranes have been described. Theories on the pathophysiologic aspects of the syndrome, including reduced plasma volume, inferior vena cava hypertension and active renal vasoconstriction, are presented. The last of these is currently the most widely accepted theory in which there is a selective redistribution of blood flow away from the cortical nephrons to the medullary nephrons on the basis of selective cortical vasoconstriction. The role of the synpathetic nervous system, as well as that of plasma renins in the cause of this condition is explored. Therapy for the hepatorenal syndrome generally has failed to ameliorate extremely unfavorable mortality rates. Such factors as the effects of plasma volume expansion; various pharmacologic agents, including dopamine, Octopressin and metaraminol; portacaval shunt; transplantation of the liver, and steroids are discussed. Regardless of specific therapy, the few patients who do survive tend to demonstrate a significant reversible component with respect to hepatic disease.
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PMID:The hepatorenal syndrome. 78 80

HRS occurs frequently in patients with advanced cirrhosis of the liver and fulminant hepatitis. The pathogenesis of HRS is not clearly understood; reduced effective plasma volume and intense renal cortical vasoconstriction seem to have important roles. The HRS is a diagnosis by exclusion, and it [table: see text] is often difficult to differentiate this entity from prerenal azotemia and ATN. The HRS is characterized by its relentless progression and usually fatal outcome. The essential steps in the management of HRS are to identify and correct the precipitating factors leading to HRS and avoidance of potential hepatotoxic and nephrotoxic drugs. Patients with potentially reversible liver diseases should be treated aggressively. Volume expansion is important and should be tried first, even though hypovolemia may be not clinically evident. Dialysis may benefit patients with fluid overload and electrolyte imbalance or those awaiting liver transplantation. In selective cases, peritoneovenous shunt may be of value. Liver transplantation is the only curative therapy available at present.
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PMID:The hepatorenal syndrome. 219 63

Application of isolated ultrafiltration (IUF) of blood in 70 out of 100 patients with refractory heart failure (HF) made it possible, acting on some mechanisms of water excretion disorders, to attain the compensation for the HF signs. At the same time the correction of the manifestations of secondary hyperaldosteronism, hypoproteinemia, hyperbilirubinemia, and azotemia was attained only thanks to the presence of the functional reserves of the liver and kidneys. In 35 patients with cachectic HF, IUF failure was determined by marked cardial liver cirrhosis together with depletion of the functional reserves of the cardiovascular system. The lack of sufficient diuresis, hyponatremia, hypoproteinemia, and hyperbilirubinemia may be unfavourable prognostic signs despite the reduction of HF intensity consequent on IUF.
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PMID:[The efficacy of isolated ultrafiltration of the blood in patients with refractory heart failure]. 276 1

The autopsy data at the University of Southern California Liver Unit was studied during a 6-year period to investigate the relationship of fibrinous pericarditis with liver diseases. We found 18 cases of fibrinous pericarditis in 220 patients with alcoholic liver disease but none in 32 patients with fulminant and subacute hepatitis without alcoholism or in 39 patients with nonalcoholic cirrhosis. Although all the 18 patients with pericarditis had azotemia, 3 patients had pericarditis develop only in mild renal function impairment. These findings suggest that chronic alcoholism may precipitate pericarditis during the hepatorenal syndrome.
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PMID:Fibrinous pericarditis in alcoholic liver disease. 292 90

Because hyponatremia is frequently associated with preceding diuretic treatment and unrestricted fluid intake--conditions which have not been addressed sufficiently in published literature--we studied the pathophysiology and the clinical setting of such hyponatremia in a large group of internal medicine patients. We observed: a) Of an initial 310 patients with chemical hyponatremia only 204 (64%) had an associated plasma hypoosmolality. Since a normal plasma osmolality excludes a disturbance of water metabolism only the 204 patients with hypoosmolar hyponatremia were included in the study. This data shows that plasma osmolality is an essential measurement in any evaluation of hyponatremia. b) In 204 consecutive patients with hypoosmolar hyponatremia the electrolyte disturbance was related to advanced congestive cardiac failure in 25%, decompensated liver cirrhosis in 18%, volume contraction in 28%, syndrome of inappropriate antidiuretic hormone secretion in 19% and renal insufficiency in 4%. c) Plasma vasopressin was measurable in 90% of the 204 patients. It is known that radioimmunoassays to measure vasopressin fail to reliably detect low concentrations of circulating vasopressin (less than 0.5 pg/ml). It may therefore be stated that hypoosmolar hyponatremia was generally characterized by a failure of antidiuretic hormone suppression. d) Mean daily fluid intake of hyponatremic patients was 2.35 +/- 0.15 l. In the presence of stimulated vasopressin this large a fluid intake is bound to worsen the severity of hyponatremia. e) Of 204 patients 126 were treated with diuretics at the time of study. In these patients hyponatremia worsened during such treatments and was associated with evidence of prerenal azotemia. However there were no significant differences between diuretic-treated and -untreated patients with respect to plasma vasopressin stimulation and amount of fluid intake.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:Role of diuretics, hormonal derangements, and clinical setting of hyponatremia in medical patients. 305 Feb 65

The natural course of renal function in patients with cirrhosis and ascites but without azotemia is unclear. Therefore, a prospective evaluation of 23 non-azotemic cirrhotic patients with ascites was carried out over a three-year interval. Assessment included evaluation of serum electrolyte values, liver function tests, plasma renin levels, and parathyroid hormone levels. Renal function was determined by measurement of clearances of water and solute excretion, and simultaneous clearances of para-amino hippurate, inulin, and creatinine. The initial mean glomerular filtration rate was 66 ml/minute, serum creatinine level was 1.1 mg/dl, and blood urea nitrogen value was 13 mg/dl. The glomerular filtration rate showed marked variability among patients. On the basis of initial glomerular filtration rate, the patients were divided into three groups. Group I consisted of patients with supranormal filtration rates (mean 183 ml/minute), Group II constituted patients with normal filtration rates (mean 92 ml/minute), and Group III comprised patients with severely impaired filtration rates (mean 32 ml/minute). The serum creatinine level was below 1.5 mg/dl in all three groups. Serial measurement of renal function was performed in 18 patients over a mean of 310 days (range four to 1,176 days). Eighty-six percent of patients studied from Groups I and II maintained a normal or supranormal glomerular filtration rate over one year. However, most patients in Group III showed a progressive decline in filtration rate, despite no change in serum creatinine value. Sixty-seven percent of Group III patients died over a mean of one year. The mean 24-hour solute excretion among Group III patients was only 263 mOsm per day, significantly less than the control value of 874 mOsm per day in other hospitalized non-cirrhotic patients. The serum creatinine level frequently failed to rise above normal even when the glomerular filtration rate was very low (less than 25 ml/minute), and creatinine clearance overestimated inulin clearance by a factor of two in Group III patients. However, the creatinine index was an aid in determining true glomerular filtration rate and may be a useful clinical test in the evaluation of renal insufficiency in cirrhotic patients with normal serum creatinine values. Many patients with cirrhosis and ascites will have a glomerular filtration rate of less than 60 ml/minute but a normal serum creatinine level. These patients may constitute a previously unrecognized large group.
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PMID:Unpredictability of clinical evaluation of renal function in cirrhosis. Prospective study. 357 63

The significance of megamitochondria in the alcoholic liver injury of humans was investigated as part of a large Veterans Administration cooperative study of the natural history of alcoholic hepatitis. Two hundred twenty patients were clinically stratified into the following three groups according to disease severity using serum bilirubin and prothrombin time as indicators: Group 1 (mild disease), serum bilirubin levels less than 5 mg/dl and prothrombin time prolonged for less than 4 s; group 2 (moderate disease), serum bilirubin levels greater than 5 mg/dl but prothrombin time prolonged for less than 4 s; and group 3 (severe disease), serum bilirubin levels greater than 5 mg/dl and prothrombin time prolonged for greater than 4 s. Megamitochondria were observed in 20% of the patients (45 of 220). Of these, 43 patients were in groups 1 and 2 of severity and only 1 patient belonged in group 3. The association of megamitochondria with cirrhosis was infrequent (33%, 15 of 45 patients). The differences in severity correlated with the differences in mortality: in patients with megamitochondria, only 1 had died at 6 mo compared with 40 deaths in patients without megamitochondria. By 12 mo, there were two deaths in patients with megamitochondria versus 51 deaths in those patients without. No complications were present in 72% of patients with megamitochondria versus 39% for those without. Infection, gastrointestinal bleeding, pancreatitis, hyperglycemia, azotemia, delirium tremens, seizures, and hepatic encephalopathy were all more common in patients without megamitochondria. The patients with megamitochondria appear to represent a subcategory of alcoholic hepatitis with a milder degree of clinical severity, lower incidence of cirrhosis, fewer complications, and good long-term survival.
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PMID:Significance of megamitochondria in alcoholic liver disease. 369 4

Azotemia is an ominous prognostic sign in cirrhosis with ascites. To investigate whether other renal disturbances are also prognostically significant, we studied the renin-aldosterone system and sodium excretion (UNaV) in 75 patients who had nonazotemic cirrhosis with ascites and related these to survival. On the basis of plasma renin activity patients were classified in two groups. Group I included 34 patients with normal renin activity (1.13 +/- 0.69 ng/mL . h) and Group II, 41 patients with high renin activity (7.46 +/- 3.86 ng/mL . h). The two groups differed significantly (p less than 0.001) in plasma aldosterone, UNaV, and wedged hepatic venous pressure but not in clinical features, liver function, glomerular filtration, and renal plasma flow. Patients of Group I lived significantly longer than those of Group II (the 50% survival rates were 28 months and 6 months, respectively). Survival curves obtained after grouping the patients according to UNaV (higher and lower than 10 meq/d) were almost identical to those obtained according to renin activity. The study results indicate that plasma renin activity and UNaV are of prognostic value in nonazotemic cirrhosis with ascites.
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PMID:Plasma renin activity and urinary sodium excretion as prognostic indicators in nonazotemic cirrhosis with ascites. 700 67


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