• Robert M Mentzer, Mehmet C Oz, Robert N Sladen, Allen H Graeve, Robert F Hebeler, John M Luber, Nicholas G Smedira, and NAPA Investigators.
• Division of Cardiothoracic Surgery, Department of Surgery, Wayne State University School of Medicine, Detroit, Michigan 48201, USA. rmentzer@med.wayne.edu
• J. Am. Coll. Cardiol. 2007 Feb 13; 49 (6): 716-26.

ObjectivesThe purpose of this study was to determine the role nesiritide might play in patients with left ventricular dysfunction undergoing coronary artery bypass grafting (CABG) using cardiopulmonary bypass (CPB).BackgroundGiven the hemodynamic, neurohormonal, and renal effects of natriuretic peptides, nesiritide might be useful in the management of patients undergoing cardiac surgery.MethodsThis prospective, double-blind, exploratory evaluation randomly assigned patients with ejection fraction ResultsOf 303 randomized patients, 279 received the study drug and 272 underwent CABG using CPB. Compared with placebo, nesiritide was associated with a significantly attenuated peak increase in serum creatinine (0.15 +/- 0.29 mg/dl vs. 0.34 +/- 0.48 mg/dl; p < 0.001) and a smaller fall in glomerular filtration rate (-10.8 +/- 19.3 ml/min/1.73 m(2) vs. -17.2 +/- 21.9 ml/min/1.73 m(2); p = 0.001) during hospital stay or by study day 14, and a greater urine output (2,926 +/- 1,179 ml vs. 2,350 +/- 1,066 ml; p < 0.001) during the initial 24 h after surgery. In addition, nesiritide-treated patients had a shorter hospital stay (p = 0.043) and lower 180-day mortality (p = 0.046).ConclusionsNesiritide in the setting of CABG with CPB is associated with improved postoperative renal function and possibly enhanced survival. (The NAPA Trial; ; ).

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