[Internal carotid artery occlusion - clinical-morphological correlations]

Area of Science:

• Neurology
• Vascular Surgery
• Medical Imaging

Background:

• Carotid artery occlusions significantly impact neurological function and patient prognosis.
• Collateral circulation plays a crucial role in mitigating the effects of arterial blockages.
• Understanding these compensatory pathways is vital for clinical management.

Purpose of the Study:

• To investigate the correlation between collateral circulation and clinical outcomes in patients with internal and common carotid artery occlusions.
• To identify factors influencing the severity and long-term consequences of carotid artery disease.

Main Methods:

• Retrospective analysis of 33 patients with internal and common carotid artery occlusions.
• Clinical condition assessment and evaluation of collateral circulation.
• Anatomical and in vivo angiographic examinations to map collateral pathways.

Main Results:

• Developed collateral circulation is associated with less severe disease courses and milder late consequences.
• Patient age and general health are critical determinants of disease progression.
• Maxillary and facial arteries are key collateral pathways from the external carotid artery to the ophthalmic artery branches.

Conclusions:

• Effective collateral circulation can significantly improve outcomes in carotid artery occlusion patients.
• Age and overall health status are paramount factors influencing recovery.
• Anatomical variations in collateral pathways, particularly involving external carotid artery branches, are important for compensation.