English

Abstract

Objectives: In this study, we presented our results regarding outcomes ofsurgical correction of sub-aortic membrane. Study Design: Retrospective observational study.Period: June 2012 to June 2017. Setting: CPEIC Multan, Pakistan. Methods: 51 patientsoperated for resection of sub aortic membrane. The resection of sub aortic membrane wasdone through the aorta. Evaluation of the aortic valve done in all patients. The aortic valve waseither replaced or repaired in cases of severe aortic regurgitation. Associated lesions such asventricular septal defects (VSD’s) were repaired with a dacron patch through the right atriumwhile ASD’s were repaired with a pericardial patch. Post-operative echocardiography was donebefore discharge and post-op LVOT gradients and aortic insufficiency were recorded for allthe patients. Results: There were 36 males and 15 females whose mean ages were 16.29years. On post-op echocardiography there was no residual significant LVOT gradient in anypatient. Three (3) patients developed mild to moderate aortic regurgitation post operativelybut none of them warrant any surgical intervention. There was only 1 death in the series whichwas due to VSD patch dehiscence. None of the patients developed conduction problems postoperatively needing any permanent pace maker. Mean pre-op LVOT gradient was 94.7 mmHgwhile it reduced to 20.7 post operatively (p-value <0.001). Conclusion: We concluded thatearly resection of sub aortic membrane can be safely accomplished with good results andsignificant drop in the mean LVOT pressure gradients post operatively.