Document Detail

Postoperative increase in B-type natriuretic Peptide levels predicts adverse outcome after cardiac surgery.
MedLine Citation:
PMID:  20829070     Owner:  NLM     Status:  In-Data-Review    
OBJECTIVE: To evaluate the prognostic implication of changes in postoperative B-type natriuretic peptide (BNP) concentrations in patients undergoing cardiopulmonary bypass for cardiac surgery.
DESIGN: A retrospective analysis of prospectively collected clinical data.
SETTING: Cardiothoracic surgery and an intensive care unit (ICU) in a university hospital.
PARTICIPANTS: The present study included a total of 407 consecutive patients undergoing cardiac surgery.
MEASUREMENTS AND MAIN RESULTS: BNP concentrations were measured on admittance to the ICU (D0) and at day 1 after surgery. Patients were divided into quintiles according to their BNP level on admittance to the ICU. The predictive value of absolute changes in BNP levels during the first 24 hours postoperatively was analyzed with Kaplan-Meier estimates of survival and Cox multivariate proportional analysis. Prognostic factors for impaired midterm survival included elevation of the BNP level (HR, 7.3/ log10(x); 95% confidence interval, 1.8-29, p = 0.005). The BNP levels of patients undergoing isolated valve surgery or valve and concomitant CABG surgery were significantly higher (p = 0.012 and p = 0.032, respectively) than those undergoing isolated coronary artery bypass graft surgery. Patients in higher quintiles required ventilation for a longer time (p < 0.001), and prolonged inotropic support (p < 0.001). The mean plasma BNP concentration of 172 pg/mL (median, 64; interquartile range, 172) on arrival at the ICU had a sensitivity of 75% and a specificity of 74% for predicting 1-year mortality.
CONCLUSIONS: Elevated BNP levels on admittance to the ICU and postoperatively increasing BNP levels are associated with adverse postoperative outcome and are predictive of impaired late survival. Sequential postoperative BNP monitoring facilitates the early identification of patients at an increased risk of heart failure and may be used as an adjunct for clinical decision making and optimized patient management.
Shahab Nozohoor; Johan Nilsson; Lars Algotsson; Johan Sjögren
Publication Detail:
Type:  Journal Article     Date:  2010-09-09
Journal Detail:
Title:  Journal of cardiothoracic and vascular anesthesia     Volume:  25     ISSN:  1532-8422     ISO Abbreviation:  J. Cardiothorac. Vasc. Anesth.     Publication Date:  2011 Jun 
Date Detail:
Created Date:  2011-05-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9110208     Medline TA:  J Cardiothorac Vasc Anesth     Country:  United States    
Other Details:
Languages:  eng     Pagination:  469-75     Citation Subset:  IM    
Copyright Information:
Copyright © 2011 Elsevier Inc. All rights reserved.
Department of Cardiothoracic Surgery, Skane University Hospital, Lund, Sweden.
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