Preoperative N-Terminal Pro-B-Type Natriuretic Peptide and Cardiovascular Events After Noncardiac Surgery: A Cohort Study
- PMID: 31869834
- DOI: 10.7326/M19-2501
Preoperative N-Terminal Pro-B-Type Natriuretic Peptide and Cardiovascular Events After Noncardiac Surgery: A Cohort Study
Abstract
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.
Comment in
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Biomarkers to Personalize Preoperative Cardiovascular Risk Stratification: Ready for Prime Time?Ann Intern Med. 2020 Jan 21;172(2):149-150. doi: 10.7326/M19-3718. Epub 2019 Dec 24. Ann Intern Med. 2020. PMID: 31869831 No abstract available.
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Adding NT-proBNP to the Revised Cardiac Risk Index improved prediction of CV events after noncardiac surgery.Ann Intern Med. 2020 May 19;172(10):JC59. doi: 10.7326/ACPJ202005190-059. Ann Intern Med. 2020. PMID: 32422088
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Preoperative N-Terminal Pro-B-Type Natriuretic Peptide and Cardiovascular Events After Noncardiac Surgery.Ann Intern Med. 2020 Jun 16;172(12):842-843. doi: 10.7326/L20-0268. Ann Intern Med. 2020. PMID: 32539497 No abstract available.
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Preoperative N-Terminal Pro-B-Type Natriuretic Peptide and Cardiovascular Events After Noncardiac Surgery.Ann Intern Med. 2020 Jun 16;172(12):842. doi: 10.7326/L20-0267. Ann Intern Med. 2020. PMID: 32539498 No abstract available.
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Preoperative N-Terminal Pro-B-Type Natriuretic Peptide and Cardiovascular Events After Noncardiac Surgery.Ann Intern Med. 2020 Jun 16;172(12):843. doi: 10.7326/L20-0269. Ann Intern Med. 2020. PMID: 32539503 No abstract available.
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