Objective: To examine the outcome of endovascular treatment in patients of isolated abdominal aortic dissection. Methods: From February 2012 to June 2020, 61 patients (44 males, 17 females) with an age of (60.2±11.4) years (range: 43 to 87 years) of isolated abdominal aortic dissection who underwent the endovascular treatment, including bifurcated and straight aortic stent graft, in the Department of Vascular Surgery, the Second Xiangya Hospital, Central South University were enrolled. There were 47 patients treated with bifurcated aortic stent grafts and 14 patients with straight aortic stent grafts. Patient demographic, preoperative, intraoperative, perioperative data were collected. Clinical follow-up data, including mortality, relative complications and aortic remodeling, were obtained. Kaplan-Meier method and Log-rank test was used to calculate and compare the rates of survival and freedom from all adverse events. Results: The operative time was (142.4±47.9) minutes (range:70 to 310 minutes) and (95.7±23.7) minutes (range: 70 to 150 minutes) in bifurcated stent group and straight stent group, respectively. The perioperative mortality was 0. One patient had partial occlusion of the left renal artery, and 3 patients had type Ⅰa endoleak post-operation. The follow-up period was (37.1±22.1) months (range: 3 to 91 months). Three patents suffered from type B aortic dissection; one of them progressed into type A aortic dissection and died, another one was treated with secondary endovascular operation, and the remaining one was treated conservatively. One patient had type A aortic dissection and was treated conservatively for 57 months without any discomfort. Stent grafts in iliac artery occlusion happened in 2 patients treated with a bifurcated graft, one of them was treated with a secondary operation because of severe symptom. Aortic remodeling was well with the treatment of bifurcated and straight grafts. There was no difference in the cumulative survival (P=0.584) and freedom from all adverse events (P=0.309) between the two different endovascular treatment strategies. Conclusion: Endovascular aortic repair is an effective and safe treatment strategy for isolated abdominal aortic dissection with reliable mid-term result and excellent aortic remodeling.
目的： 探讨孤立性腹主动脉夹层腔内修复治疗效果。 方法： 回顾性分析2012年2月到2020年6月于中南大学湘雅二医院血管外科接受腔内修复治疗的61例孤立性腹主动脉夹层患者的资料。男性44例，女性17例，年龄（60.2±11.4）岁（范围：43~87岁）。47例患者采用分叉型支架，14例患者采用直筒型支架。采用Kaplan-Meier法计算累积生存率和无不良事件发生率，Log-rank检验进行组间比较。 结果： 采用分叉型支架患者的手术时间为（142.4±47.9）min（范围：70~310 min），直筒型支架为（95.7±23.7）min（范围：70~150 min）。围手术期无患者死亡，3例患者发生Ⅰa型内漏。随访（37.1±22.1）个月（范围：3~91个月），3例患者发生Stanford B型主动脉夹层，其中1例加重为Stanford A型并破裂死亡，1例接受二期手术，1例保守治疗；1例患者发生Stanford A型主动脉夹层，保守治疗57个月无明显不适。两组患者术后主动脉重塑良好，累积生存率和无不良事件发生率均无差异（P=0.584、0.309）。 结论： 分叉型支架和直筒型支架行腔内修复术治疗孤立性腹主动脉夹层可以获得良好的中长期预后和主动脉重塑。.