论文部分内容阅读
目的:研究一种能高效完成大动脉吻合的新型血管吻合器械，利用磁性吻合技术（MCA）达到快速吻合大动脉的目的。方法:选择成年杂种犬16只，按随机数字表法分为两组：MCA组（n n=8），利用新型磁吻合器械完成吻合；传统手工缝合（HS）组（n n=8）。比较两种方法吻合腹主动脉耗时、吻合口耐压水平、术中渗漏血、术后彩色多普勒超声与血管造影检查吻合口血流及并发症情况。n 结果:MCA组大动脉吻合耗时［（8.25± 1.16） min］较HS组［（19.44±2.29） min］缩短 （n P<0.001）； MCA组术后吻合口耐压能力高于HS组（n P<0.001）；MCA组术中吻合口无渗漏血发生，HS组有6例因吻合口渗漏血需修补。血管X线造影与彩色多普勒超声检查显示MCA组吻合口血流通畅，无狭窄及血栓形成，通畅率100%；HS组术后发现3例狭窄。n 结论:新型磁性吻合环及MCA提供了一种简单、快速且吻合效果可靠的大动脉血管吻合方法，MCA血管吻合术可减少由于传统缝合技术与材料导致的吻合口并发症。“,”Objective:To evaluate the novel magnetic pinned-ring device for fast non-suture anastomosis of aorta.Methods:Sixteen adult mongrel dogs of either gender were randomly divided into two groups. In the magnetic compression anastomosis (MCA) group (n n=8), the magnetic device was utilized for non-suture anastomosis of abdominal aorta. In the hand suture (HS) group (n n=8), the traditional manual suture technique was used. Operation time, pressure resistance of anastomotic site and intraoperative errhysis were recorded. Patency rate and complications were confirmed via color Doppler ultrasound scans and angiography at different time points as late as 12 weeks after surgery.n Results:The time required to perform the aortic anastomosis was significantly shorter for the magnetic device [(8.25±1.16) mins] than for HS [(19.44±2.29) mins] (n P<0.001). The immediate post-operative anastomotic site in the MCA group could endure significantly higher pressure than that in the HS group (n P<0.001). No errhysis at the site of anastomosis was discovered in the MCA group intraoperatively, while 6 cases in the HS group required repair due to errhysis. Angiography and color Doppler ultrasound showed smooth blood flow in the MCA group with 100% patency rate and no stenosis and thrombosis while 3 cases with stenosis were founded in the HS group.n Conclusion:This novel magnetic device offers a simple, fast, reliable, and efficacious technique for non-suture arterial anastomosis. Application of the MCA technique can effectively reduce the complication caused by traditional suturing techniques and materials.