Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association
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Nephrol. Dial. Transplant. · Apr 2012
Rostral overnight fluid shift in end-stage renal disease: relationship with obstructive sleep apnea.
In both healthy male subjects and men with heart failure, the severity of obstructive sleep apnea (OSA) is related to the amount of fluid displaced from their legs into the neck overnight. Whether overnight rostral fluid shift contributes to the pathogenesis of OSA in patients with end-stage renal disease (ESRD) is unknown. We hypothesized that the change in neck circumference (NC) and severity of OSA are related to the extent of overnight change in leg fluid volume (LFV) in patients with ESRD. ⋯ Nocturnal rostral fluid shift is associated with the severity of OSA in ESRD. Prospective evaluation of the effect of reducing fluid overload and severity of OSA in ESRD patients warrants further examination.
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Nephrol. Dial. Transplant. · Apr 2012
Case ReportsAmanita poisonings resulting in acute, reversible renal failure: new cases, new toxic Amanita mushrooms.
Renal failure as a consequence of eating mushrooms has been reported repeatedly after ingestion of webcaps of the Cortinarius orellanus group. But mushrooms of the genus Amanita can also cause renal failure: Amanita smithiana (North America) and Amanita proxima (Mediterranean area). Here, we discuss poisonings caused by other white amanitas. A German and--independently--two Portuguese patients reported the ingestion of completely white mushrooms with ring. Similar to intoxications with A. smithiana or A. proxima, the clinical picture was characterized by nausea and vomiting 10-12 h after ingestion, severe acute renal failure and mild hepatitis. Renal biopsy showed acute interstitial nephritis and tubular necrosis. Two patients were given temporary haemodialysis. All have fully recovered their renal function. Poisonings caused by mushrooms containing the toxin of A. smithiana were suspected. We tested 20 Amanita species for the presence of this toxin. ⋯ A. boudieri, A. gracilior and A. echinocephala are nephrotoxic. These intoxications are clinically similar to that of A. smithiana, with acute reversible renal failure and mild hepatitis but are different in their clinical picture from Orellanus syndrome characterized by a delayed onset of severe and often irreversible renal failure.
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Nephrol. Dial. Transplant. · Mar 2012
Fluid overload at initiation of renal replacement therapy is associated with lack of renal recovery in patients with acute kidney injury.
Patients with acute kidney injury (AKI) requiring initiation of renal replacement therapy (RRT) have poor short- and long-term outcomes, including the development of dialysis dependence. Currently, little is known about what factors may predict renal recovery in this population. ⋯ In patients with AKI, a higher degree of fluid overload at RRT initiation predicts worse renal recovery at 1 year. Clinical trials are needed to determine whether interventions targeting fluid overload may improve patient and renal outcomes.
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Nephrol. Dial. Transplant. · Mar 2012
Osmotic diuresis due to urea as the cause of hypernatraemia in critically ill patients.
Hypernatraemia is common in critically ill patients and has been shown to be an independent predictor of mortality. Osmotic urea diuresis can cause hypernatraemia due to significant water losses but is often not diagnosed. Free water clearance (FWC) and electrolyte free water clearance (EFWC) were proposed to quantify renal water handling. We aimed to (i) identify patients with hypernatraemia due to osmotic urea diuresis and (ii) investigate whether FWC and EFWC are helpful in identifying renal loss of free water. ⋯ Osmotic urea diuresis is a common cause of hypernatraemia in the ICU. EFWC was useful in the differential diagnosis of polyuria during rising serum sodium levels, while FWC was misleading.
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Nephrol. Dial. Transplant. · Mar 2012
Randomized Controlled Trial Clinical TrialEffect of the intensity of continuous renal replacement therapy in patients with sepsis and acute kidney injury: a single-center randomized clinical trial.
Acute kidney injury (AKI) is a major complication in patients with sepsis and is an independent predictor of mortality. However, the optimal intensity of renal replacement therapy for such patients is still controversial. ⋯ In patients with sepsis and AKI, increasing the intensity of renal replacement therapy from 50 (HVHF) to 85 mL/kg/h (EHVHF) had no effect on survival at 28 and 90 days.