Device Closure of Ventricular Septal Defect: A Retrospective Study at Pediatric Cardiac Unit, Pediatrics Hospital, Ain Shams University

Abstract

Abstract Background The ventricular septal defect (VSD) accounts for 20% of all isolated congenital heart conditions. Nowadays, transcatheter closure is considered a feasible method of therapy for different types of VSDs. Objective To do a statistical analysis of VSD patients' data who underwent interventional cardiac catheterization to evaluate safety and outcome of transcatheter closure of VSDs. Methods This retrospective cohort study included review of files of 35 patients with VSDs who underwent interventional cardiac catheterization at the Pediatric Cardiac Catheterization Unit, Children’s Hospital, Ain Shams University during the period from first of January 2018 to the end of January 2021.Data were extracted from patients’ medical records, either through medical history, physical examination, pre- and post-intervention investigations, or procedural data. Results In our study, 35 VSD cases had attempts for device closure. Perimembranous VSD was present in 19 cases (54.3%), muscular VSD was present in 12 cases (34.3%), and basal muscular VSD was present in 4 cases (11.4%). Amplatzer Duct Occlude II (ADOII) was used in 17 patients (48.6%), a Muscular Amplatzer VSD device was used in 8 patients (22.9%), a PDA device was used in 8 patients (22.9%), and Amplatzer Duct Occlude I (ADOI) was attempted in 2 patients (5.7%). The most common complications in our study group were minor ones, such as mild tricuspid regurgitation, which occurred in 5 patients (14.3%), hemolysis, and blood transfusion in 1 patient (2.9%). There were no major complications such as aortic regurgitation, heart block, residual VSD, arrhythmia, device embolization, thrombus or clot at the device site, or hemolysis requiring surgical removal of the device. There was also no mortality in the study group. There was a statistically significant increase in the percentage of ADOI devices in complicated patients compared with non-complicated patients (p-value = 0.001), while no statistically significant difference was found between the two groups regarding the percentages of PDA, ADOII, and Muscular Amplatzer devices. The VSDs of all 35 patients were effectively closed, achieving a success rate 100%. Conclusion transcatheter closure is a safe and practical technique for VSDs with different morphologies. The outcomes of transatheter closure of VSDs done in our relatively new center were satisfactory and approximated to results of other international pediatric cardiac catheterization centers as regards complications, mortality, and success rate.