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The Norwood procedure is a surgery performed on the heart. A stage 1 Norwood procedure for hypoplastic left heart syndrome involves atrial septectomy and transection and ligation of the distal main pulmonary artery. The proximal pulmonary artery is then connected to the hypoplastic aortic arch, while the coarcted segment of the aorta is repaired. An aortopulmonary shunt is created to connect the aorta to the main pulmonary artery to provide pulmonary blood flow. The first successful use of the procedure was reported by Dr. William Imon Norwood, Jr. (1941 – ) and colleagues in 1981. Cardiopulmonary bypass is required. ==Indications== This procedure is most often performed to treat hypoplastic left heart syndrome, certain types of mitral atresia, or other conditions that result in single ventricle circulation. In these conditions, the most urgent problem is that the heart is unable to pump blood to the systemic circulation (i.e. to the body). The goal of the Norwood procedure is to connect the single ventricle to the systemic circulation. To accomplish this, blood flow to the lungs is disrupted, and therefore an alternative path must be created to supply the lungs. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Norwood procedure」の詳細全文を読む スポンサード リンク
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