Surgical Repair of Post Infarction Ventricular Septal Rupture: An 18
Years’ Retrospective Multicenter Study
Abstract
Background: Ventricular Septal Rupture (VSR) is a rare but challenging
complication after myocardial infarction (MI). In the presence of acute
MI, volume and pressure overload lead to acute heart decompensation. The
present study was designed to evaluate the early surgical outcome of VSR
for over 18 years. Method: This multicenter study was done during
2000-2018, in which 99 patients with post-MI VSR were included. Results:
The patients (n=11) presenting hemodynamic deterioration at the time of
hospital admission, died before any attempt for surgery. A consecutive
series of 88 patients with surgical repair of VSR was evaluated. The
mean interval from MI to VSR diagnosis was 7.5±7.2 days and from
admission to the operation was 5±5 days. VSR location did not influence
the outcome (p=0.1). The concomitant coronary bypass was done for all
patients; two-vessel disease was more prevalent (39%). Only 25 patients
survived and left the hospital (13 patients died in the operating room
due to the failure of pump weaning and 50 patients in the ICU due to low
cardiac output). Predictors of poor prognosis included low ejection
fraction (p=0.01), prolonged pump time (p=0.01), and operation in the
second half of this period (p=002). Conclusion: Despite the improvement
in perioperative management and cardiac surgery techniques, the
perioperative mortality rate of VSR has remained high where the assist
device is not accessible. We suggest VSR repair limited to certain
centers with adequate experiences because of the low average annual
number.