title: Diastolic flow across a ventricular septal defect: an invitation to a false diagnosis.
abstract: A case is reported of a child with a perimembranous ventricular septal defect with extensive aneurysm formation misdiagnosed as a ruptured aneurysm of the sinus of Valsalva on the basis of a distinct diastolic jet seen on colour Doppler echocardiography. The hemodynamic explanation of this rarely recognized finding is apparent from simultaneous pressure tracings taken at the time of cardiac catheterization. Diastolic flow across a ventricular septal defect can be distinguished from a ruptured aneurysm of the sinus of Valsalva by the low velocity of the jet and its tendency to peak in late diastole.
authors.affiliation: Department of Paediatrics, University of Western Ontario, London.
authors.forename: N
authors.initials: N
authors.lastname: Suskin
authors.forename: H C
authors.initials: HC
authors.lastname: Rosenberg
mesh_terms: D017545:Aortic Aneurysm, Thoracic / Q000000981:diagnostic imaging*; D001019:Aortic Rupture / Q000000981:diagnostic imaging*; D006328:Cardiac Catheterization; D002648:Child; D003937:Diagnosis, Differential; D003951:Diagnostic Errors; D003971:Diastole; D018618:Echocardiography, Doppler, Color; D005080:Exercise Test; D005500:Follow-Up Studies; D006345:Heart Septal Defects, Ventricular / Q000000981:diagnostic imaging*; D006439:Hemodynamics; D006801:Humans; D008297:Male; D012850:Sinus of Valsalva / Q000000981:diagnostic imaging*