Regional left ventricular function does not predict survival in ischaemic cardiomyopathy after cardiac surgery.

Published

Journal Article

OBJECTIVES:To define the prognostic contribution of global and regional left ventricular (LV) function measurements in patients with ischaemic cardiomyopathy randomised to coronary artery bypass graft surgery (CABG) with (n=501) or without (n=499) surgical ventricular reconstruction (SVR). METHODS:Novel multivariable methods to analyse global and regional LV systolic function were used to better formulate prediction models for long-term mortality following CABG with or without SVR in the entire cohort of 1000 randomised SVR hypothesis patients. Key clinical variables were included in the analysis. Regional function was classified according to the discreteness of anteroapical hypokinesia and akinesia into those most likely to benefit from SVR, those least likely and those felt to have intermediate likelihood of benefit from SVR. RESULTS:The most prognostic clinical variables identified in multivariable models include creatinine, LV end-systolic volume index (ESVI), age and NYHA (New York Heart Association) class. Addition of LV ejection fraction, LV end-diastolic volume index and regional function assessment did not contribute additional power to the model. Subgroup analysis based on regional function did not identify a cohort in which SVR improved mortality. CONCLUSIONS:ESVI is the single parameter of LV function most predictive of mortality in patients with LV systolic dysfunction following CABG with or without SVR in multivariable models that include all key clinical and LV systolic function parameters. Assessment of regional cardiac function does not enhance prediction of mortality nor identify a subgroup for which SVR improves mortality. These results do not support elective addition of LV reconstruction surgery in patients undergoing CABG. TRIAL REGISTRATION NUMBER:NCT00023595.

Full Text

Duke Authors

Cited Authors

  • Prior, DL; Stevens, SR; Holly, TA; Krejca, M; Paraforos, A; Pohost, GM; Byrd, K; Kukulski, T; Jones, RH; Desvigne-Nickens, P; Varadarajan, P; Amanullah, A; Lin, G; Al-Khalidi, HR; Aldea, G; Santambrogio, C; Bochenek, A; Berman, DS; STICH Trial Investigators,

Published Date

  • September 2017

Published In

Volume / Issue

  • 103 / 17

Start / End Page

  • 1359 - 1367

PubMed ID

  • 28446548

Pubmed Central ID

  • 28446548

Electronic International Standard Serial Number (EISSN)

  • 1468-201X

International Standard Serial Number (ISSN)

  • 1355-6037

Digital Object Identifier (DOI)

  • 10.1136/heartjnl-2016-310693

Language

  • eng