Author: Duceppe, Emmanuelle; Patel, Ameen; Chan, Matthew T V; Berwanger, Otavio; Ackland, Gareth; Kavsak, Peter A; Rodseth, Reitze; Biccard, Bruce; Chow, Clara K; Borges, Flavia K; Guyatt, Gordon; Pearse, Rupert; Sessler, Daniel I; Heels-Ansdell, Diane; Kurz, Andrea; Wang, Chew Yin; Szczeklik, Wojciech; Srinathan, Sadeesh; Garg, Amit X; Pettit, Shirley; Sloan, Erin N; Januzzi, James L; McQueen, Matthew; Buse, Giovanna Lurati; Mills, Nicholas L; Zhang, Lin; Sapsford, Robert; Paré, Guillaume; Walsh, Michael; Whitlock, Richard; Lamy, Andre; Hill, Stephen; Thabane, Lehana; Yusuf, Salim; Devereaux, P J
Title: Preoperative N-Terminal Pro-B-Type Natriuretic Peptide and Cardiovascular Events After Noncardiac Surgery: A Cohort Study. Cord-id: hppgct8t Document date: 2019_12_24
ID: hppgct8t
Snippet: Background Preliminary data suggest that preoperative N-terminal pro-B-type natriuretic peptide (NT-proBNP) may improve risk prediction in patients undergoing noncardiac surgery. Objective To determine whether preoperative NT-proBNP has additional predictive value beyond a clinical risk score for the composite of vascular death and myocardial injury after noncardiac surgery (MINS) within 30 days after surgery. Design Prospective cohort study. Setting 16 hospitals in 9 countries. Patients 10 402
Document: Background Preliminary data suggest that preoperative N-terminal pro-B-type natriuretic peptide (NT-proBNP) may improve risk prediction in patients undergoing noncardiac surgery. Objective To determine whether preoperative NT-proBNP has additional predictive value beyond a clinical risk score for the composite of vascular death and myocardial injury after noncardiac surgery (MINS) within 30 days after surgery. Design Prospective cohort study. Setting 16 hospitals in 9 countries. Patients 10 402 patients aged 45 years or older having inpatient noncardiac surgery. Measurements All patients had NT-proBNP levels measured before surgery and troponin T levels measured daily for up to 3 days after surgery. Results In multivariable analyses, compared with preoperative NT-proBNP values less than 100 pg/mL (the reference group), those of 100 to less than 200 pg/mL, 200 to less than 1500 pg/mL, and 1500 pg/mL or greater were associated with adjusted hazard ratios of 2.27 (95% CI, 1.90 to 2.70), 3.63 (CI, 3.13 to 4.21), and 5.82 (CI, 4.81 to 7.05) and corresponding incidences of the primary outcome of 12.3% (226 of 1843), 20.8% (542 of 2608), and 37.5% (223 of 595), respectively. Adding NT-proBNP thresholds to clinical stratification (that is, the Revised Cardiac Risk Index [RCRI]) resulted in a net absolute reclassification improvement of 258 per 1000 patients. Preoperative NT-proBNP values were also statistically significantly associated with 30-day all-cause mortality (less than 100 pg/mL [incidence, 0.3%], 100 to less than 200 pg/mL [incidence, 0.7%], 200 to less than 1500 pg/mL [incidence, 1.4%], and 1500 pg/mL or greater [incidence, 4.0%]). Limitation External validation of the identified NT-proBNP thresholds in other cohorts would reinforce our findings. Conclusion Preoperative NT-proBNP is strongly associated with vascular death and MINS within 30 days after noncardiac surgery and improves cardiac risk prediction in addition to the RCRI. Primary Funding Source Canadian Institutes of Health Research.
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