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August 18, 2026Journal of the American College of Cardiology157 citationsOpen Access

Effects of Angiotensin-Converting Enzyme Inhibitor Therapy on Clinical Outcome in Patients Undergoing Coronary Artery Bypass Grafting

AMAntonio MiceliRCRadek CapounCFCarlo Fino

Key Result

Pre-operative ACEI therapy in patients undergoing CABG was associated with an increased risk of death compared to controls (1.3% vs. 0.7%; OR 2.00; 95% CI 1.17-3.42; p=0.013).

Key Points

  • To evaluate the effect of pre-operative angiotensin-converting enzyme inhibitor (ACEI) therapy on early post-operative clinical outcomes in patients undergoing coronary artery bypass grafting (CABG).
  • Retrospective observational cohort study using prospectively collected data from 10,023 consecutive patients undergoing isolated CABG between April 1996 and May 2008.
  • Performed propensity score matching to pair 3,052 patients receiving pre-operative ACEIs with control patients, followed by multivariate logistic regression analysis.
  • Pre-operative ACEI therapy was associated with a doubling in the risk of mortality (1.3% vs. 0.7%; OR: 2.00, 95% CI: 1.17 to 3.42; p = 0.013).
  • Patients receiving pre-operative ACEIs experienced significantly higher rates of post-operative renal dysfunction (7.1% vs. 5.4%; OR: 1.36, 95% CI: 1.1 to 1.67; p = 0.006), atrial fibrillation (25% vs. 20%; OR: 1.34, 95% CI: 1.18 to 1.51; p < 0.0001), and inotropic support requirement (45.9% vs. 41.1%; OR: 1.22, 95% CI: 1.1 to 1.36; p < 0.0001).

Study Design

Type

Cohort (n=10,023)

Structured PICO

Does pre-operative ACEI therapy improve early clinical outcomes in patients undergoing isolated CABG?

P
Population
10,023 consecutive patients undergoing isolated CABG, with 3,052 receiving pre-operative ACEI matched to controls via propensity score analysis.
E
Exposure
Pre-operative angiotensin-converting enzyme inhibitor (ACEI) therapy
C
Comparator
Propensity score-matched control group not receiving pre-operative ACEI therapy
O
Outcome
Early mortalityhard clinical

Pre-operative ACEI therapy in patients undergoing CABG is associated with increased early mortality and post-operative complications, suggesting potential harm in this setting.

Main Result

Odds Ratio: 2 (95% CI 1.17–3.42)

Absolute Event Rate: 1.3% vs 0.7%

p-value: p=0.013

Abstract

OBJECTIVES: This study evaluates the effect of pre-operative angiotensin-converting enzyme inhibitor (ACEI) therapy on early clinical outcomes after coronary artery bypass grafting (CABG). BACKGROUND: Therapy with ACEIs has been shown to reduce the rate of mortality and prevent cardiovascular events in patients with coronary artery disease. However, their pre-operative use in patients undergoing CABG is still controversial. METHODS: A retrospective, observational, cohort study was undertaken of prospectively collected data on 10,023 consecutive patients undergoing isolated CABG between April 1996 and May 2008. Of these, 3,052 patients receiving pre-operative ACEI were matched to a control group by propensity score analysis. RESULTS: Overall rate of mortality was 1%. Pre-operative ACEI therapy was associated with a doubling in the risk of death (1.3% vs. 0.7%; odds ratio OR: 2.00, 95% confidence interval CI: 1.17 to 3.42; p = 0.013). There was also a significant difference between the ACEI and control group in the risk of post-operative renal dysfunction (PRD) (7.1% vs. 5.4%; OR: 1.36, 95% CI: 1.1 to 1.67; p = 0.006), atrial fibrillation (AF) (25% vs. 20%; OR: 1.34, 95% CI: 1.18 to 1.51; p < 0.0001), and increased use of inotropic support (45.9% vs. 41.1%; OR: 1.22, 95% CI: 1.1 to 1.36; p < 0.0001). In a multivariate analysis, pre-operative ACEI treatment was an independent predictor of mortality (p = 0.04), PRD (p = 0.0002), use of inotropic drugs (p < 0.0001), and AF (p < 0.0001). CONCLUSIONS: Pre-operative therapy with ACEI is associated with an increased risk of mortality, use of inotropic support, PRD, and new onset of post-operative AF.

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Cite This Study

Miceli et al. (2009) conducted a cohort in Coronary artery disease undergoing isolated CABG (n=10,023). Pre-operative angiotensin-converting enzyme inhibitor (ACEI) therapy vs. Control group (no pre-operative ACEI) was evaluated on Mortality (OR 2.00, 95% CI 1.17 to 3.42, p=0.013). Pre-operative ACEI therapy in patients undergoing CABG was associated with an increased risk of death compared to controls (1.3% vs. 0.7%; OR 2.00; 95% CI 1.17-3.42; p=0.013).

synapsesocial.com/papers/6a842383c8cf5e459dc6fc10https://doi.org/10.1016/j.jacc.2009.07.008
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Effect of preoperative angiotensin-converting enzyme inhibitor on the outcome of coronary artery bypass graft surgery2014 · 29 citations
  2. 2The effect of angiotensin‐converting enzyme inhibitor exposure on coronary artery bypass grafting2019 · 7 citations
  3. 3All Coronary Artery Bypass Graft Surgery Patients Will Benefit From Angiotensin-Converting Enzyme Inhibitors2008 · 22 citations
  4. 4Effects of Angiotensin Converting Enzyme Inhibitors Before, During, and After Coronary Artery Bypass Graft Surgery on Hemodynamic Responses and Vasoactive Drugs Requirement2014 · 1 citations
  5. 5Effect of Angiotensin-Converting Enzyme Inhibitors and Angiotensin Receptor Blockers on Risk of Atrial Fibrillation before Coronary Artery Bypass Grafting2012 · 7 citations