Effect of Transcatheter Pulmonary Valve Implantation on Short-Term Right Ventricular Function as Determined by Two-Dimensional Speckle Tracking Strain and Strain Rate Imaging
July 12th, 2009 Posted by: admin
Publication year: 2009
Source: The American Journal of Cardiology, In Press, Corrected Proof, Available online 11 July 2009
Nasser, Moiduddin , Kentaro, Asoh , Cameron, Slorach , Leland N., Benson , Mark K., Friedberg
Transcatheter pulmonary valve implantation (PVI) is an emerging therapy for right ventricular (RV) outflow dysfunction in congenital heart disease. We investigated, for the first time in children after surgery for congenital heart disease, the short-term effects of PVI on RV and left ventricular (LV) function using 2-dimensional speckle tracking echocardiography and tissue Doppler imaging. We hypothesized that the short-term RV and LV function would improve. Two-dimensional speckle tracking echocardiograms and pulsed tissue Doppler images were obtained before and 1 to 2 days after PVI (18-mm Melody valve). The catheter right heart hemodynamics were recorded. The strain and strain rate of…
