Peritoneal Dialysis vs Furosemide for Acute Kidney Injury After Cardiopulmonary Bypass

Patients randomized to the furosemide arm will be given 1 mg/kg intravenously every 6 hours for 2 doses and then as directed by CICU attending to augment urine output. Patients within this arm who have urine output \<1 ml/kg/hr over 16 hours after the first dose of Lasix will be considered poor responders. These patients may be started on PD if clinically indicated. Those who show good response (urine output \>1 ml/kg/hr over subsequent 16 hours) will continue furosemide as needed to augment urine output. If they subsequently develop oliguria or fluid overload unresponsive to diuretic therapy, these patients may later be started on PD at discretion of CICU attending with consultation of nephrology service.

Patients within the PD arm will begin PD with a standardized dialysis plan of 10ml/kg of 1.5% Dianeal™ with 1 hours cycles (5 minute fill, 45 minute dwell and 10 minute drain). Further PD management and discontinuation will be directed by CICU attending and Nephrology service.