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Relationship between N-terminal pro-B-type natriuretic peptide and renal function: the effects on predicting early outcome after off-pump coronary artery bypass surgery.

Authors
 Youn Yi Jo ; Young Lan Kwak ; Yong Seon Choi ; Jonghoon Lee 
Citation
 Korean Journal of Anesthesiology, Vol.61(1) : 35~41, 2011 
Journal Title
 Korean Journal of Anesthesiology 
ISSN
 2005-6419 
Issue Date
2011
Abstract
BACKGROUND: Plasma levels of N-terminal pro-B-type natriuretic peptide (NT-proBNP) provide useful prognostic predictors in patients after cardiac surgery. However, predictive accuracy of NT-proBNP levels has varied significantly according to renal dysfunction. The purpose of this study was to assess whether preoperative NT-proBNP levels could be used as predictors of early postoperative outcomes on the basis of renal function in patients undergoing off-pump coronary artery bypass surgery (OPCAB). METHODS: In 219 patients undergoing elective OPCAB, NT-proBNP and an estimated glomerular filtration rate (eGFR) were assessed preoperatively. All patients were divided into 3 groups according to tertiles of eGFR: the first (eGFR ≥ 90 ml/min/1.73 m(2)), the second (90 ml/min/1.73 m(2) > eGFR ≥ 72 ml/min/1.73 m(2)) and the third tertile group (eGFR < 72 ml/min/1.73 m(2)). End point was the composite of early postoperative complications defined as myocardial infarction, new onset atrial fibrillation, ventricular dysfunction, prolonged mechanical ventilator care (> 48 hr), prolonged ICU stay (≥ 3 days), and in hospital mortality. RESULTS: There was no difference in early postoperative complications among groups. A preoperative NT-proBNP level of 228 pg/ml and 302 pg/ml (sensitivity 70%, specificity 67%, P < 0.001 and sensitivity 73%, specificity 63%, P = 0.001, respectively) were optimal cut-off values predicting complicated early postoperative course in second and third tertile group, respectively. CONCLUSIONS: Preoperative NT-proBNP levels seem to be predictive of early postoperative complications in patients with eGFR < 90 ml/min/1.73 m(2) undergoing OPCAB.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/93626
DOI
10.4097/kjae.2011.61.1.35
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Anesthesiology and Pain Medicine
Yonsei Authors
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