人工四分支血管在主动脉外科的应用

Dexterously use four branch vessel prosthesis on aortic surgery

目的总结应用人工四分支血管行不同部位主动脉替换术的经验。方法自2003年8月至2005年5月,我中心采用人工四分支血管行不同部位的主动脉替换术142例。男118例、女24例,年龄(44±12)岁(22~78岁),体重(72±20)kg(49~130kg)。其中:StanfordA型主动脉夹层94例(18例为马凡综合征);StanfordB型主动脉夹层34例(6例为马凡综合征),真性动脉瘤11例,假性动脉瘤3例。在深低温停循环选择性脑灌注下,行升主动脉及全弓替换85例(83例远端加带膜支架);分段停循环下,行全胸腹主动脉替换术38例;深低温选择性脑灌注分段停循环下,行全或次全主动脉替换8例;常温非体外循环下,行全主动脉弓替换11例(3例远端加带膜支架)。结果术后早期死亡6例,病死率4·2%。术后神经并发症,较严重,严重脑功能障碍(昏迷超过3d)16例(11·3%);永久性脊髓损伤2例(1·4%);一过性脊髓损伤4例(2·8%)。结论人工四分支血管可应用于主动脉外科,能达到尽可能的缩短主动脉阻断时间和快速重建血管的目的。

Objective To review the experience of various positions aortic replacement by four branch prosthesis vessel. Methods From August 2003 to May 2005, we finished aortic procedures with four branch prosthesis vessel for 142 patients, aged (44±12)(22—78) years,weighted (72±20) kg(49—130 kg). We performed ascending aorta and total aortic arch replacement for 85 cases during right axillary artery cannulation for cardiopulmonary bypass and selected antegrade cerebral perfusion. 38 patients underwent one-stage total thoracoabdominal aortic replacemen during deep hypothermic bypass and subsection circulatory arrest. 8 patients underwent one-stage total or subtotal aortic replacement during deep hypothermic bypass and selected antegrade cerebral perfusion and subsection circulatory arrest.We performed totally aortic arch replacement without utilizing cardiopulmonary bypass and hypothermic for 11 cases. Results The mortality was 4.2%.Cerebral complications occurred in 16(11.3%).2 patients suffered from permanence spinal cord dysfunction.4 patients suffered from temporary spinal cord dysfunction.Conclusion The four branch vessel prosthesis can be used on aortic surgery dexterously. The approach may shorten she time of aortic arrest and arterial construction.