Fenestration of a Gore Helex Septal Occluder device in a patient with diastolic dysfunction of the left ventricle

Abstract
We report successful deployment of a fenestrated Helex Septal Occluder in a 46‐year‐old lady with a moderate‐sized secundum atrial septal defect and elevated left‐ventricular end diastolic pressure secondary to renovascular hypertension. Initial balloon occlusion of the defect lead to significant rise in left atrial pressure. Creation of a 4‐mm fenestration offered controlled decompression of the left atrium while reducing the atrial shunt considerably.