title: Diagnosis of stenosis in a pulmonary valve-conduit using an angioplasty guide and probing catheter.
abstract: A 42-year-old man who had undergone previous Blalock-Taussig anastomoses and placement of a homograft aortic valve-root conduit for tetralogy of Fallot presented with dyspnea at rest. Previous catheterization had shown homograft stenosis at the level of the pulmonic valve. Repeat catheterization necessitated the use of angioplasty guide and probing catheters to cross the stenosis, and pullback documented stenoses both across the homografted valve and within the homograft aortic root-native pulmonary artery conduit.
authors.affiliation: Hemodynamics Laboratory, Lenox Hill Hospital, New York, NY 10021.
authors.forename: J R
authors.initials: JR
authors.lastname: Wilentz
authors.forename: P
authors.initials: P
authors.lastname: Fratellone
mesh_terms: D000328:Adult; D000792:Angiography; D000800:Angioplasty, Balloon / Q000295:instrumentation*; D001022:Aortic Valve Insufficiency / Q000175:diagnosis; D001705:Bioprosthesis; D006350:Heart Valve Prosthesis; D006439:Hemodynamics / Q000502:physiology; D006801:Humans; D008297:Male; D011183:Postoperative Complications / Q000175:diagnosis*; D011666:Pulmonary Valve Stenosis / Q000175:diagnosis*; D012008:Recurrence; D013771:Tetralogy of Fallot / Q000601:surgery*