Percutaneous Closure of Post-Infarction Ventricular Septal Defects-An Over Decade-long Experience.

OBJECTIVES

To report an over decade-long experience with percutaneous post-infarction ventricular septal defect (PIVSD) closure.

BACKGROUND

PIVSDs remains a major clinical challenge with extremely high mortality. Data concerning interventional closure of PIVSD is scarce.

METHODS

All percutaneous PIVSD closures performed between 2003 and 2016 in 8 participating centres were identified. Data concerning patients and procedures was acquired. Patients were divided into two groups, based on the time interval between VSD diagnosis and closure (≤14 days-acute phase, >14 days-non-acute phase).

RESULTS

Twenty-one percutaneous PIVSD closures were performed on 20 patients (9 females, mean age: 70 years). Mean interval between the diagnosis and the procedure was 182.6 ± 500 days (range: 7-2228). Defects were mostly located in apical (55%) segments of the septum. In 7 cases (33%) the procedure was performed in the acute phase. The closure was technically successful in 17 cases (81%). Four patients died within 48 hours after the procedure. 30-days survival rate of the entire cohort was 70%. Univariate analysis revealed impact of technical success of the procedure (HR 0.13, CI 0.03-0.68 P = 0.016) and white blood cell count (HR 1.36 per unit increase, CI 1.1-1.69, P = 0.005) on 30-day mortality.

CONCLUSIONS

In a selected population of patients percutaneous PIVSD closure is feasible and provides satisfactory survival rate. Procedural success has a protective impact on survival. Timing of the closure remains controversial. Procedure in the non-acute phase carries lower mortality, but at the same time introduces a selection bias. Larger registry-based studies are required.