Premium
Modifications of the vein wall after microsurgical end‐to‐side artero‐venous anastomosis
Author(s) -
Fox Umberto,
Ferro Mario,
Camozzi Luca,
Conti Giario,
Montorsi Walter
Publication year - 1986
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.1920070306
Subject(s) - medicine , anastomosis , microsurgery , lumen (anatomy) , vein , surgery , operating microscope , surgical anastomosis , femoral vein , lower limbs venous ultrasonography , arteriovenous anastomosis , anatomy , radiology
The repercussions on the venous wall of the creation of 20 artero‐venous anastomoses (AVA) between the femoral artery and vein of the rat have been evaluated. The rats were killed 7, 15, 30, and 90 days after AVA, and AVAs were examined by optical microscopy and by scanning electronic microscopy. Deposits of whitish material that nearly completely occluded the venous lumen were seen, especially in the group studied longer than 90 days. These venous wall lesions, which resemble arteriosclerotic lesions, must be attributed to the new hemodynamic situation created by the AVA. The implications of such findings for the long‐term validity of venous graft in vascular microsurgery and the long‐term patency of the AVA in hemodialyzed children are discussed.