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Diuretic therapy in ARF (acute renal failure) is mainly done with loop diuretics, first of all furosemide. Torsemide has a longer duration of action and does not accumulate in renal failure. In chronic and acute renal failure, both diuretics have been effectively applied, with a more pronounced diuretic effect for torsemide. In this study, the effects of torsemide versus furosemide on renal function in cardiac surgery patients recovering from ARF after continuous renal replacement therapy (CRRT) were studied. Twenty-nine critically ill patients admitted to an intensive care unit at a university teaching hospital after cardiac surgery recovering from ARF after CRRT were included in this prospective, controlled, single-center, open-labeled, randomized clinical trial. Inclusion criteria were urine output >0.5 mL/kg/h over 6 h under CRRT. Torsemide and furosemide dosages were adjusted with the target urine output being 0.8-1.5 mL/kg/h. Hemodynamic data, urine output, volume balance, serum creatinine clearance, electrolytes, blood urea nitrogen, serum creatinine, renin, and aldosterone concentrations were measured. Fourteen patients were included in the furosemide group and 15 patients in the torsemide group. Dosages of 29 (0-160) mg torsemide and a dosage of 60 (0-240) mg furosemide were given every 6 h in each group, respectively. The dosage given at the end of the study decreased significantly in furosemide and torsemide treated patients. Urine output, 24 h balance, and serum creatinine clearance did not differ significantly between groups. Urine output decreased in both groups, mostly dose-dependent in the torsemide group. The intragroup comparison of the first time-interval after inclusion with the last time-interval showed a significant increase in serum creatinine and blood urea nitrogen in the furosemide group. Renin and aldosterone concentrations did not show significant differences. In conclusion, torsemide and furosemide were effective in increasing urine output. Torsemide might show a better dose-dependent diuretic effect in ARF patients after CRRT treatment. Serum creatinine and blood urea nitrogen elimination were less pronounced in the furosemide group.
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PMID:Torsemide versus furosemide after continuous renal replacement therapy due to acute renal failure in cardiac surgery patients. 1606 Jan 24

We present a case of a thirty-eight-year-old man who had exercise-induced acute renal failure (exercise-induced ARF). He experienced oliguria, general fatigue, and vague discomfort in the lower abdomen after he exercised. As he had suffered from hypouricemia before, he was diagnosed as having exercise-induced ARF associated with hypouricemia. Enhanced computed tomography (CT) images showed patchy wedge-shaped contrast enhancement on his bilateral kidneys, consistent with characteristic observations for exercise-induced ARF. Tc-99m diethylene triamine pentaacetic acid (DPTA) renography revealed decreases in both the renal blood flow (RBF) and glomerular filtration rate (GFR), and revealed parenchymal dysfunction of the bilateral kidneys. Renogram revealed a hypofunctional pattern on the bilateral kidneys. CT images and Tc-99m DTPA renography also had improved when the symptoms of exercised-induced ARF indicated improvement. It has been hypothesized that one cause of exercise-induced ARF may be renal vasocontraction. Although CT images are useful in evaluating exercise-induced ARF, Tc-99m DTPA renography can more easily and safely evaluate renal function. We also show that Tc-99m DTPA renography is useful in precisely evaluating the degree of improvement of exercise-induced ARF.
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PMID:Evaluation of exercise-induced acute renal failure in renal hypouricemia using Tc-99m DTPA renography. 1609 44

Crush injury or traumatic rhabdomyolysis is caused by crushing of large muscule mass, usually of the femoral and gluteal compartment. Crush syndrome is general manifestation of crush injury with renal failure (ARF). ARF is caused by deposition of myoglobin in distal tubules. The concentration of serum creatin phosphokinase is an indicator of the extent of injured muscule. The serum concentration of myoglobin is an indicator of the extent of injured muscule and the main cause of development of crush syndrome. In a prospective study the concentration of myoglobin and CPK was measured in 81 patients with injuries of lower extremities and pelvis as a part of severe trauma. The increase of CPK concentration above 1000 U/L was measured in all patients. The increase of CPK concentration above 2000 U/L was measured in 78 (96.3%) patients. The increase of myoglobin concentration of >700 mcg/L was measured in 19 (23.5%) patients. In the group of 19 patients with CPK concentration of >2000 U/L and myoglobin concentration of >700 mcg/L crush syndrome developed in 6 (7.4%) patients with oliguria (urin output <50 ml/h) and the increase of serum potassium, phosphate and creatinine concentrations. The decrease of CPK and myoglobin concentrations was achieved in 5 patients during 10-12 days and 1 patient with associated craniocrebral injury died.
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PMID:[Crush syndrome in severe trauma]. 1828 95

Asymptomatic infection due to Strongyloides stercoralis may result in potentially fatal disease in immunodepressed patients. A case of Strongyloides stercoralis hyperinfection discovered at autopsy in a 55-year-old man who had been undergoing treatment for multiple myeloma is reported, emphasizing the clinical and pathological findings. One day earlier, he presented severe headache, abdominal pain and oliguria, from which he developed acute respiratory failure and septic shock. Because of difficulty in reaching this diagnosis, empirical treatment before starting immunosuppressive therapy may be the best strategy for preventing hyperinfection by this worm.
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PMID:[Strongyloides stercoralis hyperinfection: autopsy case report]. 1885 18

Acute renal failure, a relatively common clinical condition, is still associated with a high mortality rate in both developed and developing countries despite the differences in the epidemiology, clinical characteristics and therapeutic modalities offered to affected patients. The various modalities of renal replacement therapy are still largely inaccessible, unaffordable and unavailable in most parts of sub-Saharan Africa, hence the need to judiciously utilise available resources. Consequently we studied patients with acute renal failure to critically appraise the factors that influence survival and determine the usefulness or otherwise of available renal replacement therapies (Acute HD and Acute PD). A total of 46 (34 (73.9%) males and 12 (26.1%) females) patients satisfied the inclusion criteria. Their ages ranged between 15 and 76 years (mean +/- SD; 38.2 +/-16.3 years). The commonest causes were gastro-enteritis (cholera) and septicaemia in 36.9% and 30.5% respectively. Twenty six (56.5%) of all the patients survived while the remaining 20 (43.5%) died. Twenty four (52.2%) patients had different complications of which pulmonary oedema was singularly found to significantly influence survival. Other factors that were found to significantly influence survival included availability of renal replacement therapy, the aetiology of ARF; gender; age of the patients and the duration of oliguria. We further compared the patients managed with haemodialysis with those managed with peritoneal dialysis and found no difference(s) in the age; duration of oliguria or hospitalisation; survival figures; effect of pulmonary oedema and the aetiology of ARF. However, the number of sessions for HD and the duration of PD significantly influenced survival. We conclude that ARF is still associated with a high mortality rate and prompt institution of available renal replacement therapy and aggressive management of complications would assist in reducing the trend.
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PMID:Acute renal failure (ARF) in developing countries: which factors actually influence survival. 2035 80

The prevalence of bilateral sudden sensorineural hearing loss (SSNHL) is less than 5% and the etiology of most cases is unknown. Due to many structural and functional similarities between the kidney and inner ear, many conditions, diseases, and drugs have both renal and cochlear effects and toxicities. There are several reports of SSNHL in patients with CRF, uraemic patient, hemodialysis treatment, and ARF. Here, we report a rare manifestation of SSNHL following severe postpartum hemorrhage that has simultaneous renal failure and cochlear impairment. The patient was a 22-year-old primigravida woman with term pregnancy who after delivery and episiotomy hematoma and postpartum hemorrhage subsequently suffered from kidney failure, oliguria, and SSNHL that occurred after 3 days of delivery. In conditions such as severe postpartum bleeding leading to acute renal involvement, the possibility of simultaneous involvement of cochlea due to hypoxia or received drugs should be considered.
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PMID:Sudden Bilateral Sensorineural Hearing Loss Following Postpartum Hemorrhage: A Case Report. 2876 Dec 8

A 47-year-old man with a recent history of wading in floodwaters presented with a 1-week history of cough, myalgia, conjunctival suffusion and decreasing urine output. The patient had uraemia, hypotension, leukocytosis, thrombocytopenia, elevated liver enzymes and oliguria. His condition quickly worsened with haemoptysis, and respiratory distress which subsequently required intubation and mechanical ventilation. Continuous renal replacement therapy was started together with haemoperfusion (HP). The patient initially required norepinephrine and this was discontinued after the first session of HP. He was referred for veno-venous extracorporeal membrane oxygenation (ECMO) due to severe hypoxia and pulmonary haemorrhage. Oxygenation and lung compliance improved, and serum creatinine levels continued to normalise with improved urine output. He was placed off ECMO, extubated and eventually discharged. Patient was diagnosed with severe leptospirosis, acute respiratory failure and acute kidney injury successfully treated with simultaneous ECMO and HP. Blood samples were positive for Leptospira spp. DNA via PCR assay.
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PMID:A case of leptospirosis with acute respiratory failure and acute kidney injury treated with simultaneous extracorporeal membrane oxygenation and haemoperfusion. 3114 12

This patient is a 67-year-old man who initially presented to our facility with acute respiratory failure secondary to COVID-19. Soon after arrival at our facility, the patient decompensated, developing severe acute respiratory distress syndrome requiring intubation and prone positioning to maintain adequate oxygenation. During the next few days, acute kidney injury with oliguria and severe volume overload developed. The vascular surgery service was consulted to obtain central venous access for emergent continuous renal replacement therapy. On examination, the patient was sedated and paralyzed in a rotating prone-positioning bed. He could not be positioned supine without immediately becoming hypoxic and decompensating. A 50-cm Permcath (Medtronic, Santa Rosa, Calif) was inserted through the left popliteal vein. This case report outlines a possible challenging scenario that the vascular interventionist may encounter in dealing with COVID-19 patients with respiratory compromise in the prone position.
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PMID:Achieving a popliteal venous access for renal replacement therapy in critically ill COVID-19 patient in prone position. 3232 66


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