title: Anterograde double-balloon valvoplasty for treatment of severe valvar aortic stenosis in a preterm baby weighing 1400 grams.
abstract: We describe our treatment of a premature baby born weighing 1400 g with severe aortic stenosis, with a gradient of 80 mmHg across the valve. Efforts to advance a 6 mm angioplasty catheter into the stenotic aortic valve via the left ventricle failed. Anterograde angioplasty, instead, was performed using two 4 mm coronary angioplasty catheters. Six months subsequent to the intervention, the pressure gradient measured 25 mmHg, and there was no hemodynamically significant aortic insufficiency.
authors.affiliation: Department of Pediatric Cardiology and Pediatric Intensive Care, Children's Hospital, Hannover Medical School, Germany. Peuster.Matthias@mh-hannover.de
authors.forename: M
authors.initials: M
authors.lastname: Peuster
authors.forename: T
authors.initials: T
authors.lastname: Paul
authors.forename: G
authors.initials: G
authors.lastname: Hausdorf
mesh_terms: D001024:Aortic Valve Stenosis / Q000000981:diagnostic imaging / Q000628:therapy*; D002404:Catheterization; D015150:Echocardiography, Doppler; D006801:Humans; D007231:Infant, Newborn; D007235:Infant, Premature, Diseases / Q000000981:diagnostic imaging / Q000628:therapy*