急性A型主动脉夹层手术主动脉断端加固方法的改进

目的改进急性主动脉夹层手术中对主动脉断端加固处理的方法,探讨该方法的有效性。方法华西医院胸心血管外科在主动脉夹层手术中对主动脉夹层断端加固方法在传统＂三明治＂法的基础上进行了改良,2006年1月至2008年12月对28例急性A型主动脉夹层患者采用改良主动脉夹层断端加固法施行手术。其中10例用外膜向内翻转折迭加固断端,另18例在夹层中（内外膜之间）和内膜内侧放置条形毛毡或心包条,缝线加其固定加固夹层断端;并观察吻合口出血情况和术后早期转归。结果全组患者无出血并发症;手术死亡2例,1例为术中、术后出现严重低心排血量综合征,另1例于术后1周死于多器官功能衰竭。术后仅2例患者出现苏醒延迟,其他均无神经系统并发症,无胸骨和手术切口相关并发症。26患者经治疗后痊愈出院。结论改良主动脉断端加固方法除了能达到加固夹层断端的目的外,还可以很清楚地发现吻合口上的出血点,从而施行有效的缝合止血。该方法实施方便、有效,值得在临床推荐应用。

A Modified Method for Aortic End Strengthening in Acute Type A Aortic Dissection Operation

Objective To modify the method for aortic end strengthening in acute type A aortic dissection operation, and investigate its clinical efficacy. Methods We modified the method for aortic end strengthening in acute aortic dissection operation based on ＇ Sandwich method＇ in the department of thoracic and cardiovascular surgery of West China Hospital. From January 2006 to December 2008, twenty-eight patients with acute type A aortic dissection underwent modified aortic end strengthening operation. We made adventitia turn over and enfold to strengthen the aortic end in 10 cases, and placed strip-shaped felt or pericardium belts between dissection （between adventitia and intima） and inner intima and strengthened the aortic end by suture in 18 cases. The hemorrhage of anastomotic stoma and the postoperative early prognosis were observed. Results No bleeding complication was found in all the cases. Two cases died, one died of severe low cardiac output syndrome and another died of multiple organ failure. No nervous system complication was found except that 2 cases had delayed revival. No sternum and surgical incision related complication was found. The rest 26 cases were cured and discharged. Conclusion The modified method for aortic end strengthening can not only strengthen the aortic end but also make people be able to find the petechia of anastomotic stoma clearly, then stitch hemostasia could be done effectively. The method is easy to implement and effective, it should be extend in clinic.