动脉分支处的红细胞流变学研究与小动脉端侧吻合  

EXPERIMENTAL STUDY ON RBC RHEOLOGY AT ARTERIAL BIFURCATION AND END TO SIDE ANASTOMOSIS OF SMALL ARTERIES /

作　　者：郭立新[1] 侯春林[1] 张文明[1] 

机构地区：[1]第二军医大学附属长征医院骨科

出　　处：《中国修复重建外科杂志》1996年第2期106-108,共3页Chinese Journal of Reparative and Reconstructive Surgery

摘　　要：为了探讨动脉分支处及小动脉端侧吻合处的血液流动方式，采用微循环电视显微镜成像技术，活体观察大鼠肠系膜微动脉分支区域血液流动方式和红细胞流变行为，研究动脉血流方向的改变对血流方式的影响。实验中观察到，在形态各异的大鼠肠系膜微动脉分支区域血液流态为稳定层流；红细胞通过不规则变形能很好地适应血管腔不同的几何形态，以保持血液流态的稳定。结果表明，微小动脉血流方向的改变未能在分支区域导致湍流发生，小动脉端侧吻合只是人为增加了侧支循环。In order to investigate the influence on the blood flow direction and pattern at the arterial bifurcation, the mesenteric arterioles of 19 SD rats were observed under the OLYMPUS BH 2 surgical microscope. After the rats were anesthetized and the body temperature was kept at 37℃ to 38℃, the mesenteric membrane was exposed and the pattern and direction of the blood flow of the arterioles which bifurcated at angle of 45±5°, 90±5° and 135±5° were observed. Results showed that the deformation of RBCs made them easy to adapt to the intravascular geometry and pass by fluently without sticking. It was implied that the alteration in arterial flow direction did not cause turbulance at the bifurcation site, and this in return suggested that in end to side anastomosis of small arteries, the flow volume would not be reduced and the chance of thrombosis would not be increased.

关 键 词：动脉血流 端侧吻合 血液流变学 游离组织移植 

分 类 号：R622[医药卫生—整形外科]