Branch pulmonary artery (PA) stenosis may occur as an isolated finding or in conjunction with other cardiac malformations; it may be congenital or acquired postoperatively. Branch PAs need to be assessed individually to determine the adequacy of their size, whether they are confluent or nonconfluent, any stenosis at origin or distally, and severity of stenosis. Certain lesions, such as supravalvar pulmonary stenosis, or stenosis at the branch PAs bifurcation, are better dealt with at surgery. Thus, perioperative transthoracic and transesophageal echocardiography (TEE) assume a very important role in precisely evaluating the anatomy of main and branch PAs.

Keywords: Branch pulmonary artery stenosis, Intracardiac repair, L eft p ulmonary a rtery s tenosis, Tetralogy o f F allot, Transesophageal echocardiography.

How to cite this article: Bhat IH, Damodaran S, Mandal B. Rare Case of Membranous Obstruction at the Origin of Left Pulmonary Artery: Role of Perioperative Echocardiography to Evaluate the Anatomy of Pulmonary Artery. J Perioper Echocardiogr 2017;5(2):74-76.

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Conflict of interest: None