title: Transannular GORE-TEX patch with pericardial unicusp for total correction of tetralogy of fallot.
abstract: When corrective surgery for tetralogy of Fallot was accomplished through the use of a transannular GORE-TEX patch with a pericardial unicusp, the right-ventricular end-diastolic volumes of all patients studied within a year of the surgery were within the normal ranges because of decreased pulmonary valve regurgitation. The right-ventricular ejection fraction was also only slightly depressed, indicating preservation of right-ventricular function. All patients were noted to maintain normal stroke volumes and normal systolic indices. In contrast, the patients who had transannular patches placed without unicusps showed significantly elevated right-ventricular end-diastolic volumes and lower right-ventricular ejection fractions. These resulted from markedly dilated right-ventricular outflow regions in conjunction with enlarged right-ventricular chambers, which manifested as large dyskinetic areas in the anterior right-ventricular walls.
authors.affiliation: Department of Pediatrics, University of Missouri School of Medicine, Kansas City, USA.
authors.forename: R V
authors.initials: RV
authors.lastname: Canent
authors.forename: P J
authors.initials: PJ
authors.lastname: Anthony
authors.forename: T M
authors.initials: TM
authors.lastname: Holder
authors.forename: K W
authors.initials: KW
authors.lastname: Ashcraft