摘要
目的报告术中盐水冲洗的射频改良迷宫手术治疗二尖瓣病变伴心房颤动(AF)的初步结果。方法2003年5月至2004年4月有41例患者接受了术中盐水冲洗的射频改良迷宫手术。采用Cardioblate进行消融(射频功率25～30W,盐水冲洗速度180～240ml/h),完成右心房部分迷宫手术后,阻断主动脉,以冷晶体或冷血心脏停搏液灌注保护心肌,作房间沟后左心房切口,完成环绕左右肺静脉的消融线,并作左环线至左心耳口及二尖瓣后瓣环的消融线,用消融线连结左右环线,完成心瓣膜置换术及其它所需的手术(施行双瓣膜置换术10例、二尖瓣置换术31例,其中同期行三尖瓣成形术6例、左心房血栓清除术6例)。结果体外循环时间71～160min(105±24min),主动脉阻断时间32～106min(62±20min),射频消融时间4～22min(11±4min)。住院期间死亡1例,死于机械瓣膜故障。在出院及术后3个月的随访中,35%(14/40)的患者恢复了窦性心律,术后6个月随访67%(10/15)的患者恢复了窦性心律。结论二尖瓣病变伴有较长时间持续AF的患者,在施行心瓣膜置换术的同时行术中盐水冲洗的射频改良迷宫手术是较为安全、可行的。
Objective To report the preliminary results of intraoperative saline-irrigated radiofrequency modified maze procedure for chronic atrial fibrillation (AF) in mitral valve diseases. Methods From May 2003 to April 2004 forty-one patients underwent intraoperative saline-irrigated modified maze procedure. The patients included 13 male and 28 female. Their age ranged from 27-65 years (46±10 years). The duration of AF varied from 5 months to 15 years (4.5±3.6 years).The left atrial diameter varied from 37-93 mm (54±11mm). There were mitral stenosis 20, mitral regurgitation 1 and mitral stenosis with regurgitation 20 cases. Cardiopulmonary bypass (CPB) was established as usual. Ablation lines were made with Cardioblate (Medtronic, 25-30 W, 180-240ml/h). Having finished right-sided maze procedure, the aorta was cross-clamped and cold crystalloid or blood cardioplegia were used for myocardial protection. Left atrial incision was performed through the interatrial groove. The ablation lines were created to encircle the orifices of the left and right pulmonary veins respectively. The ablation lines were also performed from the left encircling line to the posterior mitral valvular annulus and to the orifice of left atrial appendage respectively. A ablation line was used to connect left and right pulmonary veins circumferential line. Concomitant procedures were performed (there were double valve replacement 10 cases, mitral valve replacement 31 cases, tricuspid annuloplasty 6 cases, removing the left atrial thrombi 6 cases). Results CPB time varied from 71-160 min (105±24 min) and cross-clamping time varied from 32-106 min (62±20 min). The ablation time varied from 4-22 min (11±4 min). One patient died during hospitalization and the death was caused by acute mechanic valve obstruction. During follow-up at discharge and 3 months 35% patients (14/40) were free of AF and the others were not. But at 6 months 67% patients (10/15) were free of AF. Conclusion The intraoperative saline-irrigated radiofrequency modified maze proc
出处
《中国胸心血管外科临床杂志》
CAS
2005年第2期73-75,共3页
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery
