title: Aneurysm of the membranous ventricular septum resulting in pulmonary outflow tract obstruction in congenitally corrected transposition of the great arteries.
abstract: Aneurysm of the membranous ventricular septum causing subpulmonic obstruction in patients with corrected transposition is rare but well documented. Higher left-sided (morphologic right) ventricular pressure causes protrusion of the aneurysm into the pulmonary outflow tract of the right-sided morphologic left ventricle, causing obstruction related to lack of conus and proximity of the aneurysm to subpulmonary region. Echo Doppler studies and angiography are useful in making a correct diagnosis. Surgical resection of the aneurysm along with closure of the ventricular septal defect is the treatment of choice. The prognosis is likely to be excellent.
authors.affiliation: Department of Pediatrics, Saint Louis University School of Medicine, MO 63104, USA.
authors.forename: S C
authors.initials: SC
authors.lastname: Reddy
authors.forename: P S
authors.initials: PS
authors.lastname: Chopra
authors.forename: P S
authors.initials: PS
authors.lastname: Rao
mesh_terms: D000790:Angiocardiography; D002648:Child; D015150:Echocardiography, Doppler; D017548:Echocardiography, Transesophageal; D006322:Heart Aneurysm / Q000150:complications* / Q000000981:diagnostic imaging; D006346:Heart Septum / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D014188:Transposition of Great Vessels / Q000150:complications* / Q000000981:diagnostic imaging / Q000601:surgery*; D014694:Ventricular Outflow Obstruction / Q000000981:diagnostic imaging / Q000209:etiology*