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Size‐Reduced Cryopreserved Pulmonary Valve Allograft for an RV‐PA Conduit: Technical Modification and Functional Evaluation
Author(s) -
Kitamura Soichiro,
Kawachi Kanji,
Niwaya Kazuo,
Fukutomi Masaaki,
Kobayashi Shuichi,
Hasegawa Junichi,
Kawata Tetsuji,
Sakaguchi Hidehito
Publication year - 1995
Publication title -
journal of cardiac surgery
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 58
eISSN - 1540-8191
pISSN - 0886-0440
DOI - 10.1111/j.1540-8191.1995.tb00584.x
Subject(s) - medicine , electrical conduit , bicuspid valve , pulmonary atresia , pulmonary valve , ross procedure , pulmonary regurgitation , cryopreservation , hemodynamics , regurgitation (circulation) , cardiology , pulmonary artery , surgery , bicuspid aortic valve , aortic valve , stenosis , tetralogy of fallot , heart disease , mechanical engineering , embryo , engineering , aortic valve replacement , biology , microbiology and biotechnology
A bstract Cryopreserved pulmonary allografts harvested from adults at the time of kidney donation were size reduced and used in two children with pulmonary atresia and ventricular septal defect. A technical modification for the creation of size‐reduced pulmonary allograft conduits is described. Postoperative ultrasonic and cineangiographic assessments revealed excellent function of the pulmonary bicuspid valved conduit with a minimal pressure gradient and essentially no regurgitation. Although the long‐term fate of cryopreserved bicuspid pulmonary valve and conduit is unknown, this conduit provides excellent handling characteristics that render allograft conduits preferable to synthetic conduits. In addition, the remodeled bicuspid pulmonary allograft conduits have exhibited excellent hemodynamic characteristics and are a reasonable alternative to other types of conduits when an appropriate size allograft is not available.