Predictors of Mortality in Primary Surgical Repair of Postinfarction Ventricular Septal Defects: The Leipzig Experience
DOI:
https://doi.org/10.1532/hsf.3803Keywords:
acute myocardial infarction, cardiogenic shock, coronary artery disease, ventricular septal defect, mechanical complications, cardiac surgery, high riskAbstract
Background: A postinfarction ventricular septal defect (pVSD) as a complication of acute myocardial infarction (AMI) is associated with high mortality. This retrospective, single-center study aimed to identify predictors of early and long-term outcomes in patients undergoing primary surgical repair of pVSD managed by various surgical techniques.
Methods: We reviewed data from 77 consecutive patients who underwent primary surgical repair after pVSD in our institution. Prospectively collected demographic and perioperative data were analyzed retrospectively. Predictors of 30-day mortality and long-term outcome were assessed.
Results: pVSD was anterior in 45 patients (58.4%) and posterior in 32 (41.6%). Buttressed mattress suture (n = 9, 11.7%), simple single septal patch (n = 34, 44.2%), simple double septal patch (n = 2, 2.6%), sandwich double patch (n = 1, 1.3%), and the infarct exclusion technique (n = 31, 40.3%) were performed for surgical closure. Fifty-three patients (68.8%) had preoperative cardiogenic shock. The 30-day mortality was 42.8% (33 patients). Independent risk factors of 30-day mortality were duration between AMI and surgery <7 days (odds ratio [OR] 5.229, P = .011), preoperative absence of diuretics (OR 6.913, P = .005), and preoperative cardiogenic shock (OR 3.558, P = .011). Cumulative survival rates at 1, 5, and 10 years were 57.1%, 57.1%, and 31.2%, respectively.
Conclusion: In pVSD, the 30-day mortality remains high, and preoperative cardiogenic shock significantly influenced mortality in our study. None of the surgical techniques or materials used in our investigation influenced the outcome.
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