Korean J Thorac Cardiovasc Surg.  2006 Oct;39(10):775-778.

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

• Lee JH
• Kwak JG
• Jung ES
• Oh SJ
• Chang HW
• Kim WH

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 vetnricular outflow 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.

Keyword

Hypertrophic obstructive cardiomyopathy; Heart septum; Myectomy

MeSH Terms

Cardiomyopathy, Hypertrophic*
Child
Heart Septum
Humans
Hypertrophy
Myocardium
Papillary Muscles