Closed Interatrial Septostomy

Off-pump atrial septostomy with thoracoscopic scissors under transesophageal echocardiography guidance

“…[345] The first technique described was the Blalock Hanlon septectomy. [3] This involves snaring of right pulmonary veins and right pulmonary artery and has been associated with complications such as arrhythmias, pulmonary hemorrhage, and neurological insult. More recent techniques include the use of a Brock punch under TEE guidance[4] and a specially designed atriotomy knife through a thoracotomy.…”