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[Internal carotid artery occlusion - clinical-morphological correlations]
Insights
A developed collateral circulation improves outcomes for patients with carotid artery occlusions, reducing disease severity and long-term consequences. However, older patients may not experience significant improvement.
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.
Abstract:
An attempt has been made by the authors to find correlations between the collateral circulation and clinical condition in thirty-three patients suffering from occlusions of the internal and common carotid arteries. It has been found that the course of disease will be less severe when a collateral circulation is developed; also, this results in late consequences being much less severe in character. The age and general condition of the patient were found to be of major importance to the course of disease. Patients of advanced age usually do not show any appreciable improvement even in those cases where a collateral circulation has developed. Anatomical examinations showed that there existed a large number of collateral circulations between the external carotid artery and the branches of the ophthalmic artery. Playing the most important role among these branches of the external carotid artery are the maxillary and facial arteries. This has also been confirmed by the results of angiographic examinations made in vivo. Also described in this paper are rare cases of development of collateral circulations which were reported in the literature and which may be considered as contributing to the compensation of conditions characterized by the occlusion of the internal carotid artery.