open access

Vol 16, No 4 (2009)
Case Reports
Published online: 2009-05-12
Submitted: 2013-01-14
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Progressive discrete subaortic stenosis developed after successful primary repair of the supravalvular aortic stenosis in Williams syndrome

Shi-Min Yuan, Rafael Kuperstein, Jacob Lavce
Cardiol J 2009;16(4):368-371.

open access

Vol 16, No 4 (2009)
Case Reports
Published online: 2009-05-12
Submitted: 2013-01-14

Abstract

Discrete subaortic stenosis is a rare, late complication of the surgical repair of congenital heart defects. Secondary subaortic stenosis late after surgical repair of supravalvular aortic stenosis in Williams syndrome has not previously been described.
A 20 year-old female patient with Williams syndrome became symptomatic eight years after subaortic membrane resection. A discrete subaortic stenosis was identified by echocardiography. She was indicated for a Konno operation with a 19-mm Sorin SL valve inserted in the aortic position, along with ventricular septal defect closure with a pericardial patch. She produced a transient slight hypocalcemia after the operation. She was discharged home in a good condition on the fourth post-operative day.
Intracardiac morphological and hemodynamic factors have been suggested as responsible for such a late complication. Our case study suggests the need for regular follow-up in patients with Williams syndrome, even after primary surgical repair.

Abstract

Discrete subaortic stenosis is a rare, late complication of the surgical repair of congenital heart defects. Secondary subaortic stenosis late after surgical repair of supravalvular aortic stenosis in Williams syndrome has not previously been described.
A 20 year-old female patient with Williams syndrome became symptomatic eight years after subaortic membrane resection. A discrete subaortic stenosis was identified by echocardiography. She was indicated for a Konno operation with a 19-mm Sorin SL valve inserted in the aortic position, along with ventricular septal defect closure with a pericardial patch. She produced a transient slight hypocalcemia after the operation. She was discharged home in a good condition on the fourth post-operative day.
Intracardiac morphological and hemodynamic factors have been suggested as responsible for such a late complication. Our case study suggests the need for regular follow-up in patients with Williams syndrome, even after primary surgical repair.
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Keywords

discrete subaortic stenosis; echocardiography; Konno operation; Williams syndrome

About this article
Title

Progressive discrete subaortic stenosis developed after successful primary repair of the supravalvular aortic stenosis in Williams syndrome

Journal

Cardiology Journal

Issue

Vol 16, No 4 (2009)

Pages

368-371

Published online

2009-05-12

Bibliographic record

Cardiol J 2009;16(4):368-371.

Keywords

discrete subaortic stenosis
echocardiography
Konno operation
Williams syndrome

Authors

Shi-Min Yuan
Rafael Kuperstein
Jacob Lavce

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