title: Cyanosis after surgical correction of pulmonary valve stenosis: an old problem revisited.
abstract: The presence of cyanosis following repair of congenital cardiac defects may result from several different mechanisms. We report two patients in whom early postoperative arterial hypoxemia manifested by cyanosis was caused by right-to-left interatrial shunting. Two-dimensional contrast echocardiography correctly identified the site and direction of shunting, leading to surgical correction of the complication.
authors.affiliation: Clayton Foundation for Research Cardiovascular Laboratories and the Division of Cardiology of St. Luke's Episcopal Hospital and the Texas Heart Institute., Houston 77225, USA.
authors.forename: C E
authors.initials: CE
authors.lastname: Morales
authors.forename: L
authors.initials: L
authors.lastname: Eng-Cecena
authors.forename: P
authors.initials: P
authors.lastname: Angelini
authors.forename: W E
authors.initials: WE
authors.lastname: Dear
authors.forename: C M
authors.initials: CM
authors.lastname: de Castro
authors.forename: R J
authors.initials: RJ
authors.lastname: Hall