Nephrology
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This study has been carried out to see whether renal function is acutely altered in patients undergoing sevoflurane anaesthesia. For this purpose, the urinary levels of markers of renal tubular function, namely leucine amino peptidase (LAP), gamma-glutamyl transferase (GGT), alkaline phosphatase (ALP), lactate dehydrogenase (LDH) and beta-2 microglobulin (beta-2M), and urinary albumin as a predictor of renal glomerular function were measured before and after sevoflurane anaesthesia. ⋯ These results suggest that a 2% end-tidal concentration of sevoflurane at a high flow-rate (6 L/min) acutely alters renal glomerular function but does not have a significant acute effect on biochemical markers of renal tubular damage.
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Acute renal failure is an unusual complication of wasp stings. We report three cases who developed acute renal failure after multiple wasp stings (Vespa magnifica). Two patients had evidence of intravascular haemolysis and rhabdomyolysis whereas one patient investigation showed no evidence of intravascular haemolysis or rhabdomyolysis. ⋯ Oligo-anuria was seen in all three of the patients and all of them required dialytic support. One patient died of massive gastrointestinal bleeding while the remaining two recovered completely. Although acute renal failure after wasp stings is typically caused by acute tubular necrosis in the setting of haemolysis or rhabdomyolysis, in some patients, renal failure may result from a direct nephrotoxic effect or acute interstitial nephritis from a hypersensitivity reaction to the wasp venom.
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Pre-existing renal dysfunction predisposes to acute renal failure (ARF) in patients undergoing coronary artery bypass grafting. We assessed the incidence and impact of the development of ARF in this patient population in our unit. ⋯ For patients undergoing coronary artery bypass grafting, pre-existing renal dysfunction predisposes to the development of ARF, this is associated with prolonged hospitalization and increased mortality.