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Can varying flow velocity across an arterial anastomosis prevent thromboembolic injury?
Author(s) -
Barker John H.,
Andresen Dorthe M.,
Anderson Gary L.,
Schuschke Dale,
Gu JinMei,
Gupta Subhas,
Hjortdal Vibeke E.,
Derr John W.,
Banis Joseph C.,
Acland Robert D.
Publication year - 1995
Publication title -
microsurgery
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.031
H-Index - 63
eISSN - 1098-2752
pISSN - 0738-1085
DOI - 10.1002/micr.1920160512
Subject(s) - medicine , blood flow , anastomosis , microcirculation , cremaster muscle , thrombus , reduction (mathematics) , artery , occlusion , cardiology , surgery , hemodynamics , geometry , mathematics
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 throm‐boembolism. 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 micro‐circulation from embolic injury without increasing the incidence of thrombotic occlusion. © 1995 Wiley‐Liss, Inc.