[Intraoperative aortic injury caused by arterial perfusion cannula during extended aortoplasty in a patient with Williams syndrome].


An 8-year-old girl with Williams syndrome underwent repair of supravalvular aortic stenosis by extended aortoplasty (Doty technique). Although she was weaned from bypass successfully, direct epiaortic ultrasound scanning disclosed the acute luminal narrowing of the ascending aorta at the level of aortic cannulation. The perfusion was restarted through the… (More)


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