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Right ventricular form and function after percutaneous atrial septal defect device closure

Gruschen R. Veldtman, MB, ChB^*,1, Vanessa Razack^*, Samuel Siu, MD, FACC^*, Hassan El-Hajj, MB, ChB^*, Fiona Walker, MB, ChB^*, Gary D. Webb, MD, FACC^*, Leland N. Benson, MD, FACC and Peter R. McLaughlin, MD, FACC^*

^* Congenital Cardiac Centre for Adults, University of Toronto and Toronto General Hospital, Toronto, Ontario, Canada
Division of Cardiology, Department of Pediatrics, Hospital for Sick Children, Toronto, Ontario, Canada

View larger version (105K): [in a new window]   Figure 1 Echocardiographic measurement of RA dimensions at end systole. AB = maximal mediolateral dimension (i.e., width of RA); CD = superoinferior dimension (i.e., length of RA); LA = left atrium; LV = left ventricle; RA = right atrium; RV = right ventricle.

View larger version (26K): [in a new window]   Figure 2 Size of residual shunts over follow-up time.

View larger version (25K): [in a new window]   Figure 3 Distribution of New York Heart Association (NYHA) functional classes over duration of follow-up. Mon = interval (months) between procedure and follow-up date; Pre = before atrial septal defect closure.