Qingyu Wu, MD, Lufeng Zhang, MD, Rui Zhu, MD

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Presentation transcript:

Obstruction of Left Ventricular Outflow Tract After Mechanical Mitral Valve Replacement Qingyu Wu, MD, Lufeng Zhang, MD, Rui Zhu, MD The Annals of Thoracic Surgery Volume 85, Issue 5, Pages 1789-1791 (May 2008) DOI: 10.1016/j.athoracsur.2007.11.069 Copyright © 2008 The Society of Thoracic Surgeons Terms and Conditions

Fig 1 Preoperative transthoracic echocardiography shows ATS mechanical prosthesis anterior displacement (arrow) and obstructing left ventricular outflow tract. The Annals of Thoracic Surgery 2008 85, 1789-1791DOI: (10.1016/j.athoracsur.2007.11.069) Copyright © 2008 The Society of Thoracic Surgeons Terms and Conditions

Fig 2 The anterior half of prosthesis ring (not seen here, beyond the remnant leaflet) was sutured to residual mitral anterior leaflet (arrow) with previous operation. The Annals of Thoracic Surgery 2008 85, 1789-1791DOI: (10.1016/j.athoracsur.2007.11.069) Copyright © 2008 The Society of Thoracic Surgeons Terms and Conditions

Fig 3 Anterior half of the prosthesis ring was cut away from hyperplastic tissue and lifted upward to left atrium by double-arm sutures with pledget (arrow). The Annals of Thoracic Surgery 2008 85, 1789-1791DOI: (10.1016/j.athoracsur.2007.11.069) Copyright © 2008 The Society of Thoracic Surgeons Terms and Conditions

Fig 4 Subaortic hyperplasia of fibrosis (myocardial) tissue was excised to enlarge left ventricular outflow tract (arrow). The Annals of Thoracic Surgery 2008 85, 1789-1791DOI: (10.1016/j.athoracsur.2007.11.069) Copyright © 2008 The Society of Thoracic Surgeons Terms and Conditions

Fig 5 Postoperative transesophageal echocardiography shows unobstructed left ventricular outflow tract (arrow). The Annals of Thoracic Surgery 2008 85, 1789-1791DOI: (10.1016/j.athoracsur.2007.11.069) Copyright © 2008 The Society of Thoracic Surgeons Terms and Conditions