Outcomes and Predictors of In-Hospital Mortality After Isolated Coronary Artery Bypass Grafting in Patients with Severe Ischemic Cardiomyopathy: A Single-Centre Retrospective Analysis.
M, A.O., A, W., A, K.T., T, W., & F, E. (2026). Outcomes and Predictors of In-Hospital Mortality After Isolated Coronary Artery Bypass Grafting in Patients with Severe Ischemic Cardiomyopathy: A Single-Centre Retrospective Analysis.. Medical sciences (Basel, Switzerland). https://doi.org/10.3390/medsci14020216
M AO, A W, A KT, T W, F E. Outcomes and Predictors of In-Hospital Mortality After Isolated Coronary Artery Bypass Grafting in Patients with Severe Ischemic Cardiomyopathy: A Single-Centre Retrospective Analysis.. Medical sciences (Basel, Switzerland). 2026; doi: 10.3390/medsci14020216
M AO, A W, A KT, et al. Outcomes and Predictors of In-Hospital Mortality After Isolated Coronary Artery Bypass Grafting in Patients with Severe Ischemic Cardiomyopathy: A Single-Centre Retrospective Analysis.[J]. Medical sciences (Basel, Switzerland). 2026. DOI: 10.3390/medsci14020216.
@article{m2026,
author = {Al-Obaidi M and Winter A and Karimian-Tabrizi A and Walther T and Emrich F},
title = {Outcomes and Predictors of In-Hospital Mortality After Isolated Coronary Artery Bypass Grafting in Patients with Severe Ischemic Cardiomyopathy: A Single-Centre Retrospective Analysis.},
journal = {Medical sciences (Basel, Switzerland)},
year = {2026},
doi = {10.3390/medsci14020216},
note = {PMID: 42201008},
}
TY - JOUR AU - Al-Obaidi M AU - Winter A AU - Karimian-Tabrizi A AU - Walther T AU - Emrich F TI - Outcomes and Predictors of In-Hospital Mortality After Isolated Coronary Artery Bypass Grafting in Patients with Severe Ischemic Cardiomyopathy: A Single-Centre Retrospective Analysis. T2 - Medical sciences (Basel, Switzerland) PY - 2026 DO - 10.3390/medsci14020216 AN - PMID:42201008 ER -
BACKGROUND: Patients with coronary artery disease (CAD) and severely reduced left ventricular ejection fraction (LVEF) ≤ 30% represent a high-risk group for coronary artery bypass grafting (CABG). Outcomes are of significant concern; therefore, real-world outcome data and predictors of early mortality remain important for perioperative decision-making. AIM: This study aims to evaluate early and mid-term outcomes in patients with severe ischemic cardiomyopathy (LVEF ≤ 30%) undergoing isolated CABG and to identify independent predictors of in-hospital mortality. METHODS: We conducted a retrospective single-centre cohort analysis including patients with preoperative LVEF ≤ 30% undergoing isolated CABG (2017-2021). Early outcomes included in-hospital and 30-day mortality. The mid-term outcome was all-cause mortality up to 36 months. Multivariable logistic regression was used to identify independent predictors of in-hospital mortality. A predefined subgroup comparison was performed for LVEF ≤ 20% versus LVEF 20-30%. RESULTS: The study comprised 147 patients with LVEF ≤ 30% undergoing isolated CABG. Overall, in-hospital mortality was 21.1%, and 30-day mortality was 23.8%. Cumulative all-cause mortality was 31.3%, 37.4%, and 42.9% at 12, 24 and 36 months respectively. Patients with LVEF ≤ 20% showed significantly higher early mortality (in-hospital 37.2% vs. 14.4%; 30-day 41.9% vs. 16.3%) and 36-month mortality (58.1% vs. 36.5%) compared with those with LVEF at 20-30%. Independent predictors of in-hospital mortality included preoperative hemodynamic instability, elevated operative risk scores, emergency status, prolonged cardiopulmonary bypass time, and major postoperative complications (all p < 0.05). CONCLUSIONS: CABG in patients with LVEF ≤ 30% is associated with substantial early mortality, while mid-term survival remains acceptable. Severely reduced LVEF identifies a particularly high-risk subgroup requiring careful perioperative risk stratification.