Eighteen specimens were studied among a consecutive series of 25 stroke who patients underwent STA-MCA anastomosis,
The histological evaluation of the STA resected at the time of STA-MCA anastomosis were performed under light microscopy with hematoxylin & eosin, van Gieson and Mallory trichrome stains,
The following parameters were evaluated in all cases, The amount of intimal fibroblastic proliferation, the characteristics of the internal elastic lamina including fragmentation & splitting, the characteristics & thickness of the media and the
presence
of fragments of elastic tissue at the junction with the adventitia,
The degree of stenosis or luminal occlusion were determined by estimating the degree of luminal narrowing,
The results obtained from clinical evaluation by Karnofsky performance scale, postoperative angiogrphy & PET suggested that preoperative pathological changes of the STA did not result significantly in adverse effects on the anastomotic
competence,
|