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Seven patients had acute oliguric renal failure after intravenous urography (2), celiac arteriography (2), or cardiac angiography (3). Diatrizoate meglumine was the contrast media used in all of the cases. These patients had an average age of 63 years and six were 55 years of age or older. Diabetes mellitus, negative fluid balance before the procedure, underlying renal insufficiency, and hypertension were common, being present in three, four, five, and six of the patients respectively . Anuria or oliguria occurred within 24 hours of the procedure and persisted from 36 to 96 hours (72 hours average). The serum creatinine level rose significantly in all of the patients and reached a peak in two to seven days after the procedure. In six patients, recovery was complete by two to three weeks. The seventh patient experienced only partial recovery. These cases taken together with a mounting number of recent reports suggest that contrast media-induced oliguric renal failure is more common than generally believed. Diabetes mellitus, older age, and underlying renal insufficiency seem to be important predisposing factors.
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PMID:Contrast media-induced oliguric renal failure. 62 32

The occurrence of rhabdomyolysis and acute renal failure associated with cytomegaloviral infection is rare. A 27-year-old housewife was admitted to our hospital with complaints of thirst, muscle weakness, abdominal pain and oliguria. There was no past history of diabetes, drinking, fever or drug habituation and a negative family history. Laboratory tests revealed myoglobinuria, hyper-pancreatic type amylaseuria, hyperglycemia, azotemia and highly increased creatine phosphokinase in the plasma. She was treated with hemodialysis and insulin therapy. Serological studies showed a 4-fold increase in cytomegalovirus antibody titers 4 weeks after admission. Muscle biopsy specimens showed hyaline degeneration and infiltration of T cell lymphocytes in the muscle. Renal biopsy specimens showed acute tubular necrosis and some myoglobin casts. No cytomegalovirus antigen was found in renal specimens by immunofluorescence study. From these results, it was determined that a systemic cytomegalovirus infection triggered pancreatitis which caused diabetic ketoacidosis, rhabdomyolysis and acute renal failure.
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PMID:Cytomegalovirus infection associated with acute pancreatitis, rhabdomyolysis and renal failure. 131 48

Over a period of 6 years 192 cases of urosepsis have been recorded and managed in our urological department. In almost all cases (97%) the primary focus of infection was the urinary tract and the responsible microorganisms were Gram-negative rods, in order Enterobacter, B. Proteus, E. Coli, Klebsiella and others. Clinical features were dominated by symptoms related to failure or insufficiency of end organs (fever, hypotension, oliguria, mental disorders, respiratory distress etc.). Bacteremia was diagnosed with an incidence of 66%, septic shock 12% and MSOF 20%. Negative bacteriological tests do not rule out the diagnosis of systemic infection. Risk factors are considered advanced age, uremia, diabetes, malnutrition and extensive surgery.
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PMID:Clinical comments on management of urosepsis in a general urological department. 141 20

Forty-eight patients with acute renal failure (ARF) who were referred to the Department of Renal Medicine, Singapore General Hospital for acute dialysis between August 1985 and August 1989 were studied retrospectively to identify risk factors associated with ARF that serve as prognostic indicators. There was no difference in the mean age of survivors and non-survivors (49.5 +/- 17.5 years vs 53.5 +/- 18 years, p greater than 0.05). The overall mortality rate was 52%. ARF as a result of surgical complication had a higher mortality rate in comparison to ARF from medical complications (66% vs 50%, p greater than 0.05). Septicaemia was the most common cause of ARF requiring dialysis. Hepatobiliary sepsis was the most frequent cause of septicaemia. Pre-dialysis serum urea and creatinine levels, and the number of dialysis treatments did not affect the outcome. Poor prognostic indicators included oliguria or anuria, fluid overload and coma. Patients tended to have a worse outcome if they had more than three risk factors taken from the following list:-decreased renal perfusion, assisted ventilation, coma, gastrointestinal dysfunction, recent surgery, sepsis, congestive heart failure, hepatobiliary dysfunction, malignancy, diabetes mellitus, chronic renal insufficiency and poor nutritional status. Early referral of patients with septicaemia due in particular to hepatobiliary infection may improve the prognosis.
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PMID:Acute renal failure prognostic indices in hospital inpatients referred for haemodialysis. 192 73

In two cases with drug-related hyperkalemia, potassium homeostasis, causes, symptoms and therapy are discussed. Iatrogenic and therefore avoidable hyperkalemia occurs most often when potassium, ACE-inhibitors, nonsteroidal antiinflammatory drugs or potassium-sparing diuretics are administered in patients with impaired renal function or diabetes mellitus. The emergency treatment in patients with severe hyperkalemia consists of intravenous calcium injections, infusion of glucose with insulin and, more recently, salbutamol. With acidotic patients administration of sodium-bicarbonate can be tried. Ion-exchange drugs and furosemide have a more delayed effect. With oliguria and anuria hemodialysis is often necessary.
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PMID:[Hyperkalemia]. 199

In order to determine the frequency of acute renal failure (ARF) induced by drugs, to identify the agents responsible for it and to define its semiological characteristics, a prospective study was carried out between 1 October 1987 and 30 September 1988, in Sfax and southern Tunisia. Three Departments of Medicine and one Hemodialysis Center participated in this study. Twelve cases of drug-induced ARF were identified among the 73 cases of ARF reported, i.e., a frequency of 16%. Anti-inflammatory non-steroidal drugs (AINS) were implicated in 5 cases and antibiotics in 2. Symptoms of hypersensitivity were observed in 4 patients, 2/3 without oliguria. Renal insufficiency was usually marked: plasma creatinine was 523 +/- 425 mumol/l; proteinuria greater than 1 g/24 h was seen in 2 patients. Hypovolemia and/or hypotension (6 cases) and diabetes mellitus (4 patients) were found to favor ARF. Renal function returned to normal in 9 patients, whereas mild renal failure persisted in the remaining 3 patients. Drug-induced ARF occurs often. AINS are the most frequently incriminated agents and hypersensitivity symptoms without oliguria are the most common manifestations. Drug-induced ARF can be prevented by close monitoring of high-risk patients, i.e., those taking AINS.
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PMID:[Acute renal insufficiency caused by drugs or iodinated contrast media. Results of a prospective and multicenter study in south Tunisia]. 219 14

To evaluate the incidence, risk factors, and clinical course of radiocontrast nephrotoxic effects in the elderly, 183 patients aged 70 years or more undergoing 199 cardiac catheterizations were studied prospectively. Contrast nephropathy (a rise in creatinine level of greater than or equal to 44 mumol/L above baseline) occurred in 21 cases (11%). In 16 (76%) of these 21 cases, renal function returned toward baseline within several days. One patient developed transient oliguria, but no deaths were attributable to renal failure. Independent risk factors for renal dysfunction included contrast volume greater than 200 mL, serum albumin level less than 35 g/L, diabetes mellitus, serum sodium level less than 135 mmol/L, and baseline creatinine level greater than 133 mumol/L. Renal insufficiency occurred in 1.2% of patients with no risk factors, 11.2% of those with one risk factor, and more than 20% of those with two or more risk factors. Thus, the incidence and clinical course of radiocontrast nephropathy in the elderly are similar to those in younger patients. High-risk elderly patients who may benefit from more aggressive prophylaxis can be prospectively identified, but the threat of contrast nephrotoxic effects should not be considered a major contraindication to angiography in appropriately selected patients.
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PMID:Incidence, risk factors, and clinical course of acute renal insufficiency after cardiac catheterization in patients 70 years of age or older. A prospective study. 235 56

To examine the necessity and consequences of high-dose contrast media administration during coronary angioplasty, the records of 730 consecutive patients over a 6-month period were reviewed. The 54 patients (7%) requiring contrast agent doses greater than or equal to 400 ml were examined in detail. The mean contrast dose in this group was 496 +/- 76 ml (range 400 to 785 ml). Their mean age was 63 +/- 11 years (range 36 to 83 years), 10 patients had diabetes mellitus (19%), and four patients had a baseline creatinine level greater than or equal to 1.5 mg/dl (7%). Following coronary angioplasty, the serum creatinine rose from 1.1 +/- 0.2 to 1.2 +/- 0.3 (p = 0.08). The creatinine rose greater than or equal to 0.5 mg/dl in six patients (11%) and greater than or equal to 1.0 mg/dl in one patient (2%). Five of these six patients had either diabetes mellitus, baseline renal insufficiency, or both. Oliguria was not observed. The most important procedural factors contributing to the high doses of contrast media were multilesion and multivessel angioplasty in 96% and 83% of patients, respectively, prior bypass surgery in 52%, and combined diagnostic cardiac catheterization and angioplasty in 13%. Thus renal dysfunction following high-dose contrast agent administration during complex coronary angioplasty is infrequently associated with nephrotoxicity. Whenever possible, contrast doses in patients with diabetes mellitus and renal insufficiency should be minimized.
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PMID:High-dose contrast agent administration during complex coronary angioplasty. 238 89

Contrast nephropathy can be defined as an acute impairment of renal function that follows exposure to radiocontrast materials and for which alternative explanations for renal impairment have been eliminated. Based on reported studies, the incidence of contrast associated nephropathy (CAN) varies from 0 to 22%. This wide variation can be traced to differences in study design and the criteria used to designate significant renal impairment. Irrespective of the exact incidence, 2 defined risk factors have been identified: preexisting renal disease and diabetes mellitus. Whereas preexisting renal insufficiency is the single most influential risk factor for CAN, when diabetes coexists the incidence approaches 100%. The clinical presentation of CAN is distinct, having a temporal relation between the performance of the contrast study in the high-risk patient and the onset of an increase in serum creatinine levels within the next 24 hours. Serum creatinine values greater than 50% of baseline or rising 1 mg/dl or more is diagnostic. The peak serum creatinine level occurs within 3 to 5 days of the contrast study and oliguria is associated in approximately 30% of the cases. Monitoring serum creatinine is the most useful clinical procedure in high-risk patients after angiography. At least 5 potential pathophysiologic mechanisms of CAN have been proposed: interference with renal perfusion, altered glomerular perm-selectivity, direct tubular injury, intraluminal obstruction, and immunologic mechanisms. Support for each mechanism, either singularly or in combination, can be found in published reports; however, none has achieved universal acceptance. The single most important clinical axiom regarding the prevention and management of CAN is, "Always use the least invasive diagnostic procedure available."(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:Contrast-associated nephropathy. 267 65

We report a case of primary localized amyloidosis of the bladder which manifested post-renal failure. A 79-year-old woman with diabetes mellitus complained of anorexia and oliguria. Computed tomographic (CT) scan showed bilateral hydronephrosis. Cystoscopic examination revealed a broad-based nonpapillary tumor in the trigonum of the bladder and CT scan demonstrated thickening of the posterior wall of the bladder. Pathological examination of the transurethral biopsy specimen revealed amyloid deposits in the submucosa, but no malignant changes were found. Cytodiagnosis of washing fluid of the bladder revealed amyloid deposits around the exfoliative cells. Serum electrophoresis showed a normal pattern. Urinary Bence-Jones protein was not detected. Amyloid deposits were not found in rectal mucosa. Systemic or secondary amyloidosis was ruled out from these findings, and primary localized amyloidosis of the bladder was diagnosed. The mass of the bladder was transurethrally resected and pig-tail stents were indwelt. These procedures gave a satisfactory result.
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PMID:[A case of localized amyloidosis of the bladder manifesting post-renal failure]. 268 67


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