Murashita Toshifumi, Hatta Eiichiro, Imamura Michiaki, Yasuda Keishu
Department of Cardiovascular Surgery, Hokkaido University Hospital, Sapporo, Japan.
Eur J Cardiothorac Surg. 2002 Nov;22(5):849-51. doi: 10.1016/s1010-7940(02)00446-3.
One year after surgical repair of the truncus arteriosus, a 1-year 8-month-old boy was found to have a pseudoaneurysm of the right ventricular outflow tract (RVOT). Cine-magnetic resonance imaging (MRI) showed a narrow communication between the RVOT and aneurysm. MRI was useful to evaluate the anatomical and spatial relations between the pseudoaneurysm and the surrounding structures, therefore an appropriate approach was chosen. Thus, a median sternotomy approach was carried out and ordinary central cannulation was feasible to establish a cardiopulmonary bypass. The defect was successfully repaired with reconstruction using a monocuspid outflow patch. MRI provided useful information for deciding the surgical approach.
在动脉干手术修复一年后，一名1岁8个月大的男孩被发现右心室流出道（RVOT）存在假性动脉瘤。电影磁共振成像（MRI）显示RVOT与动脉瘤之间有狭窄的连通。MRI有助于评估假性动脉瘤与周围结构之间的解剖和空间关系，因此选择了合适的手术入路。于是，实施了正中胸骨切开术入路，采用普通的中心插管建立体外循环是可行的。使用单尖瓣流出补片进行重建，成功修复了缺损。MRI为确定手术入路提供了有用信息。
