Bilateral Ortak Karotis Arter Ligasyonu Sonrası Kraniyofacioservikal Resirkülasyon Sırasında Trigeminal Ağ ve Karotiko-vertebrobaziler Vaskülatürü Arasındaki Sihirli İlişki: Ön Çalışma

Abstract

Aim: Steno-occlusive carotid artery disease causes increased intraluminal pressure, retrograde blood flow, intraluminal enlargement, vessel wall thinning, convolution, vascular remodelling, angiogenesis, and aneurysm formation. We investigated whether there is a relationship between trigeminal ganglion (TGG) ischemia and luminal surface area values of external/internal carotid arteries (ECA/ICA) after common carotid artery ligation (BCCAL). 
 Material and Methods: This study was conducted in 20 hybrid male rabbits as control (GA;n=5), SHAM (GB;n=5), and study group (GC,n=10). Following anterior mid-cervical incision, permanent BCCAL was performed for only GC and animals sacrificed under general anaesthesia after three months. Degenerated neuron (DN) density of TGGs and ECAs/ICAs' luminal surface values were estimated by Cavalieri and Stereological methods. Lumen enlargement, wall thinning, elongation, convolution, and dolichoectasia were detected in the carotid artery vasculature. 
 Results: The mean DN density of TGG was 12±4 in GA, 53±11 in GB, and 960±112 in GC. The mean number of ECA branches was calculated as 4±1/GA, 7±2/GB, and 11±3/GC. Total surface values of ECA/ICA (as mm2): 4.8±1.2/GA; 3.9±0.8/GB and 3.6±0.4/GC. 
 Conclusion: The low density of DN in TGG could have a beneficial effect on neovascularization, collateral development, a renormalization of carotid circulation, and prevention of ischemic damage supplied by ECA/ICA of study group.