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J Thorac Cardiovasc Surg 2006;131:468-469
© 2006 The American Association for Thoracic Surgery
Brief Communication |
a Department of Cardiothoracic Surgery, Saint Joseph's Hospital of Atlanta, Atlanta, Ga
b Department of Anesthesiology, Saint Joseph's Hospital of Atlanta, Atlanta, Ga
c Department of Cardiology, Saint Joseph's Hospital of Atlanta, Atlanta, Ga
Received for publication August 25, 2005; accepted for publication August 31, 2005. * Address for reprints: Douglas A. Murphy, MD, Department of Cardiothoracic Surgery, Saint Joseph's Hospital of Atlanta, 5665 Peachtree Dunwoody Rd, Atlanta, GA 30342 (Email: dmurphy407@aol.com).
| The first 20% of the full text of this article appears below. |
Accessory mitral valve is an uncommon cause of left ventricular outflow tract obstruction in the adult patient.
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Excisional therapy has traditionally been performed through the proximal aorta by using a median sternotomy. We report the excision of an obstructive accessory mitral leaflet through the left atrium using a right chest endoscopic approach with the da Vinci Robotic System (Intuitive Surgical, Sunnyvale, Calif).
Clinical Summary
A 43-year-old man presented with dyspnea on exertion of 1 years' duration. Examination revealed a body mass index of 36.7 kg/m2 and a systolic cardiac murmur. Transesophageal echocardiography demonstrated a membranous structure in the left ventricular outflow tract with a parachute action during systole. Chordal attachment suggested this membranous structure was an accessory mitral leaflet. Peak systolic gradient across the membrane
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