Campbell R M, Parks W J, Crawford F A, Gillette P C
Children's Heart Center, Atlanta, GA 30322.
Pacing Clin Electrophysiol. 1992 Aug;15(8):1101-4. doi: 10.1111/j.1540-8159.1992.tb03110.x.
A 7-year-old male presenting with Wolff-Parkinson-White syndrome and tachycardia was suspected by echocardiographic and magnetic resonance imaging evaluation to have an associated pericardial cyst anterior to the right atrium and ventricle. Electrophysiological evaluation demonstrated short antegrade and retrograde accessory connection refractory periods, with inducible orthodromic atrioventricular reentrant tachycardia. Surgical observation revealed a rare congenital right atrial diverticulum bridging the anterior right atrioventricular groove, with the functional accessory connection lateralized to the medial aspect of this structure. Endocardial and epicardial incisions and cryolesions placed along the anterior right atrioventricular groove initially appeared successful, but preexcitation recurred within 4 weeks postoperatively.
一名7岁男性因预激综合征和心动过速就诊，经超声心动图和磁共振成像评估怀疑在右心房和心室前方存在一个相关的心包囊肿。电生理评估显示前传和逆传旁路连接不应期较短，可诱发顺向房室折返性心动过速。手术观察发现一个罕见的先天性右心房憩室横跨右房室前沟，功能性旁路连接位于该结构内侧。沿右房室前沟进行的心内膜和心外膜切口及冷冻消融最初似乎成功，但术后4周内预激复发。
