Reoperation for diffuse supravalvular aortic stenosis with Williams syndrome —Extended patch aortoplasty and extra-anatomic bypass from the ascending aorta to the descending aorta in a median sternotomy— |
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Authors: | Yoshitaka Kumada Hiroyuki Yasuda Eisaku Sasaki Shinji Murakawa Yoshio Mori Hajime Hirose |
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Institution: | 1. First Department of Surgery, Gifu University, Gifu, Japan
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Abstract: | A case of diffuse supravalvular aortic stenosis (SVAS) with Williams syndrome is reported. In this case of severe diffuse SVAS, we performed the diamond-patch aortoplasty in a child. However he has been suffering from residual SVAS. At 9-years old, the myocardial injury was noted by myocardial scintigraphy. Preoperative cardiac catheterization and angiography revealed the hypoplastic ascending aorta and arch with a pressure gradient of 89 mmHg at the distal site from the left subclavian artery. Through only a median stenotomy, an extended patch aortoplasty between the valsalva sinus and distal arch was performed and an extraanatomic bypass from the ascending aorta to the descending aorta was employed using a 10 mm tube graft. We realize this technique is available because this method can relieve the left ventriculus of the pressure load and operate via only median sternotomy. |
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