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Extended Septal Myectomy for Hypertrophic Obstructive Cardiomyopathy -Report of a case-  

Lee Jae-Hang (Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University College of Medicine)
Kwak Jae-Gun (Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University College of Medicine)
Jung Eui-Suk (Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University College of Medicine)
Oh Se-Jin (Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University College of Medicine)
Chang Myoung-Woo (Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University College of Medicine)
Kim Woong-Han (Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University College of Medicine)
Publication Information
Journal of Chest Surgery / v.39, no.10, 2006 , pp. 775-778 More about this Journal
Abstract
Hypertrophic cardiomyopathy is characterized by inappropriate hypertrophy of the myocardium and is associated with various clinical presentations ranging from complete absence of symptoms to sudden, unexpected death. These are caused by dynamic obstruction of the left ventricular outflow tract and surgical approaches were initiated. But, the complete resection of hypertrophied midventricular septum is impossible by standard, transaortic approach, because of narrow vision and limited approach. And it leads to inadequate excision, will leave residual left ventricular out-flow tract obstruction or systolic anterior motion of mitral leaflet, and limit symptomatic improvement and patient's survival. We report a case of extended septal myectomy for hypertrophic cardiomyopathy of mid-septum in a child. The extended septal myectomy was performed by aortotomy and left ventricular apical incision, and made possible the complete resection of mid-ventricular septum, abnormal papillary muscles and chordae. The patient's symptom was improved and the postoperative course was uneventful.
Keywords
Hypertrophic obstructive cardiomyopathy; Heart septum; Myectomy;
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