CAN VARYING FLOW VELOCITY ACROSS AN ARTERIAL ANASTOMOSIS PREVENT THROMBOEMBOLIC INJURY

被引:8
作者
BARKER, JH
ANDRESEN, DM
ANDERSON, GL
SCHUSCHKE, D
GU, JM
GUPTA, S
HJORTDAL, VE
DERR, JW
BANIS, JC
ACLAND, RD
机构
[1] Division of Plastic and Reconstructive Surgery, Department of Surgery, University of Louisville, Louisville, Kentucky
关键词
D O I
10.1002/micr.1920160512
中图分类号
R61 [外科手术学];
学科分类号
摘要
In this study, simulated ''poor'' repairs applied to transverse incisions in the iliac arteries of 40 rats were the basis for comparing the effect of variations in blood flow on thromboembolism. Using vital microscopy and digital image processing, we performed 2 experiments. In the first experiment (n = 20), the reduction of post-repair blood flow by approximately 50% resulted in an 83% reduction in the total number of emboli appearing in the microcirculation of the cremaster muscle distal to the repair. In the second experiment (n = 20), the same reduction in blood flow typically resulted in larger repair-site thrombi which required significantly more time to grow to their maximum size. We conclude that reducing pedicle artery blood flow to approximately half in our rat model during reperfusion can protect the downstream microcirculation from embolic injury without increasing the incidence of thrombotic occlusion. (C) 1995 Wiley-Liss, Inc.
引用
收藏
页码:349 / 356
页数:8
相关论文
共 28 条
[1]  
Shaw WW, Microvascular free flaps: Survival, donor sites and application, Symposium on Clinical Frontiers in Reconstructive Microsurgery, pp. 3-10, (1984)
[2]  
Melissinos EG, Parks DH, Post‐trauma reconstruction with free tissue transfer—Analysis of 442 consecutive cases, J Trauma, 29, 8, pp. 1095-1103, (1989)
[3]  
Tebetts JB, (1985)
[4]  
Weiland AJ, Villarreal-Rios A, Kleinert HE, Kutz J, Atasoy E, Lister G, Replantation of digits and hands: Analysis of surgical techniques and funtional results in 71 patients with 86 replantations, J Hand Surg, 2, pp. 1-12, (1977)
[5]  
Barker JH, Anderson GL, Gu J-M, Wyllie F, Acland RD, Experimental study of the relationship between alterations in tissue perfusion and anastomotic patency, Microsurgery, 14, pp. 409-415, (1993)
[6]  
Acland RD, Anderson G, Siemionow M, McCabe S, Direct in vivo observations of embolic events in the microcirculation distal to a small‐vessel anastomosis, Plast Reconstr Surg, 84, pp. 280-288, (1989)
[7]  
Barker JH, Acland RD, Anderson GL, Patel J, Microcirculatory disturbances following the passage of emboli in an experimental free flap model, Plast Reconstr Surg, 90, pp. 95-102, (1992)
[8]  
Wurzinger LJ, Opitz R, Blasberg P, Eschweiler H, Schmid-Schonbein H, The role of hydrodynamic factors in platelet activtion and thrombotic events: The effects of shear stress of short duration, Fluid Dynamics as a Localizing Factor for Atherosclerosis, pp. 91-102, (1983)
[9]  
Arfors KE, Cockburn JS, Gross JF, Measurement of growth rate of laser‐induced intravascular platelet aggregation and the influence of blood flow velocity, Microvasc Res, 11, pp. 79-87, (1976)
[10]  
Begent N, Born GVR, Growth rate in vivo of platelet thrombi, produced by iontophoresis of ADP, as a function of mean blood flow velocity, Nature, 227, pp. 926-930, (1970)