title: Prediction of severe obstruction to right ventricular outflow after repair of tetralogy of Fallot and pulmonary atresia.
abstract: Cineangiograms were available for a quantitative retrospective study along with complete clinical information in 96 patients who underwent intracardiac repair of tetralogy of Fallot with pulmonary atresia. Multivariate analysis determined that the risk factors for too high a ratio (greater than or equal to 1) between the peak pressure in the right ventricle and that in the left, in the operating room about 30 minutes after repair, were as follows: size of the patient, small size of the right and left pulmonary arteries, and a larger number of large aortopulmonary collateral arteries. When, according to the multivariate equation, the predicted probability of this ratio being equal to or greater than 1 is 50% or more, consideration may be given to preliminary operations before repair; when the predicted probability is 70% or more, complete repair at that stage may be unwise.
authors.affiliation: Department of Surgery, University of Alabama, Birmingham School of Medicine and Medical Center 35294.
authors.forename: E H
authors.initials: EH
authors.lastname: Blackstone
authors.forename: Y
authors.initials: Y
authors.lastname: Shimazaki
authors.forename: T
authors.initials: T
authors.lastname: Maehara
authors.forename: J W
authors.initials: JW
authors.lastname: Kirklin
authors.forename: L M
authors.initials: LM
authors.lastname: Bargeron
mesh_terms: D001830:Body Surface Area; D003097:Collateral Circulation; D006801:Humans; D011183:Postoperative Complications; D011651:Pulmonary Artery / Q000002:abnormalities* / Q000601:surgery; D012189:Retrospective Studies; D012307:Risk Factors; D013771:Tetralogy of Fallot / Q000601:surgery*; D014694:Ventricular Outflow Obstruction / Q000209:etiology*