Importance of angina in patients with coronary disease, heart failure, and left ventricular systolic dysfunction: insights from STICH.

Published

Journal Article

BACKGROUND: Patients with left ventricular (LV) systolic dysfunction, coronary artery disease (CAD), and angina are often thought to have a worse prognosis and a greater prognostic benefit from coronary artery bypass graft (CABG) surgery than those without angina. OBJECTIVES: This study investigated: 1) whether angina was associated with a worse prognosis; 2) whether angina identified patients who had a greater survival benefit from CABG; and 3) whether CABG improved angina in patients with LV systolic dysfunction and CAD. METHODS: We performed an analysis of the STICH (Surgical Treatment for Ischemic Heart Failure) trial, in which 1,212 patients with an ejection fraction ≤35% and CAD were randomized to CABG or medical therapy. Multivariable Cox and logistic models were used to assess long-term clinical outcomes. RESULTS: At baseline, 770 patients (64%) reported angina. Among patients assigned to medical therapy, all-cause mortality was similar in patients with and without angina (hazard ratio [HR]: 1.05; 95% confidence interval [CI]: 0.79 to 1.38). The effect of CABG was similar whether the patient had angina (HR: 0.89; 95% CI: 0.71 to 1.13) or not (HR: 0.68; 95% CI: 0.50 to 0.94; p interaction = 0.14). Patients assigned to CABG were more likely to report improvement in angina than those assigned to medical therapy alone (odds ratio: 0.70; 95% CI: 0.55 to 0.90; p < 0.01). CONCLUSIONS: Angina does not predict all-cause mortality in medically treated patients with LV systolic dysfunction and CAD, nor does it identify patients who have a greater survival benefit from CABG. However, CABG does improve angina to a greater extent than medical therapy alone. (Comparison of Surgical and Medical Treatment for Congestive Heart Failure and Coronary Artery Disease [STICH]; NCT00023595).

Full Text

Duke Authors

Cited Authors

  • Jolicœur, EM; Dunning, A; Castelvecchio, S; Dabrowski, R; Waclawiw, MA; Petrie, MC; Stewart, R; Jhund, PS; Desvigne-Nickens, P; Panza, JA; Bonow, RO; Sun, B; San, TR; Al-Khalidi, HR; Rouleau, JL; Velazquez, EJ; Cleland, JGF

Published Date

  • November 10, 2015

Published In

Volume / Issue

  • 66 / 19

Start / End Page

  • 2092 - 2100

PubMed ID

  • 26541919

Pubmed Central ID

  • 26541919

Electronic International Standard Serial Number (EISSN)

  • 1558-3597

Digital Object Identifier (DOI)

  • 10.1016/j.jacc.2015.08.882

Language

  • eng

Conference Location

  • United States