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Continuous veno-venous hemodialysis was the single modality for RRT in our ICU during all study periods. Indications for RRT included diuretic-resistant oliguria (urine output < 0.5 mL/kg body weight) persistent for 6 hrs or anuria persistent for 3 hrs despite adequate volume therapy or associated with volume overload with threatened or established pulmonary edema, the presence of hyperkalemia ... ................
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