Functional effect of new atrial septal defect after percutaneous mitral valve repair using the MitraClip device.
作者： Rainer Hoffmann , Ertunc Altiok , Sebastian Reith , Kathrin Brehmer , Mohammad Almalla
DOI: 10.1016/J.AMJCARD.2013.12.035
关键词:
摘要: Percutaneous mitral valve repair using the MitraClip device has become a therapeutic alternative for high surgical risk patients with symptomatic regurgitation. The procedure involves transseptal puncture and results in new atrial septal defect (ASD) after withdrawal of 22Fr guiding catheter. functional effect ASD is not defined. In 28 regurgitation undergoing percutaneous device, 3-dimensional transesophageal echocardiography was used to measure by direct en face imaging area ASD. Analysis velocity-time integral (VTI) across catheter allowed calculation shunt volume. Diastolic VTI flow determined before determine left ventricular inflow changes. Invasive pressure measurements were obtained during Regurgitant volume reduced from 86 ± 21 ml/beat intervention 43 22 ml/beat intervention. had an 0.19 cm 2 , 44% Considering 72 26 cm/s, left-to-right calculated be 14 6 ml/beat. diastolic forward 13 6 ml/beat immediately Mean 17 8 mm Hg still atrium 15 conclusion, creation as consequence large-diameter relief atrium. This contributes immediate hemodynamic changes implemented procedure.
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