title: Cyanosis due to diastolic right-to-left shunting across a ventricular septal defect in a patient with repaired tetralogy of Fallot and pulmonary atresia.
abstract: Cyanosis as a result of right-to-left shunting across a ventricular septal defect is commonly encountered in patients with congenital heart disease when systolic pressure in the right ventricle exceeds that in the left ventricle. Reported is the case of a child who remained cyanosed after surgical correction of pulmonary atresia despite right ventricular systolic pressure being lower than left ventricular pressure. Colour-flow Doppler showed a residual ventricular septal defect, with right-to-left shunting in diastole alone.
authors.affiliation: Yorkshire Heart Centre, Paediatric Cardiac Unit, Leeds General Infirmary, UK. jthomsom@ulth.northy.nhs.uk
authors.forename: J D
authors.initials: JD
authors.lastname: Thomson
authors.forename: J
authors.initials: J
authors.lastname: Forster
authors.forename: J L
authors.initials: JL
authors.lastname: Gibbs
mesh_terms: D002648:Child; D003490:Cyanosis / Q000209:etiology; D003971:Diastole / Q000502:physiology; D018618:Echocardiography, Doppler, Color; D005260:Female; D006345:Heart Septal Defects, Ventricular / Q000000981:diagnostic imaging / Q000503:physiopathology*; D006801:Humans; D018633:Pulmonary Atresia / Q000601:surgery*; D013771:Tetralogy of Fallot / Q000601:surgery*; D016277:Ventricular Function, Left / Q000502:physiology; D016278:Ventricular Function, Right / Q000502:physiology