Coronary-carotid artery collateral formation in Takayasu's arteritis: First reported case in the literature

Area of Science:

• Cardiovascular Medicine
• Rheumatology
• Vascular Biology

Background:

• Takayasu's arteritis is a rare, chronic inflammatory disease affecting large arteries, primarily the aorta and its branches.
• It commonly leads to stenosis or occlusion of affected vessels, potentially causing severe ischemic complications.
• Cerebral and systemic perfusion are often compromised in advanced Takayasu's arteritis.

Purpose of the Study:

• To report the novel finding of coronary-carotid artery collateral formation in a patient with Takayasu's arteritis.
• To highlight the potential for unusual collateral pathways in managing critical arterial stenosis.
• To emphasize the importance of evaluating collateral circulation in Takayasu's arteritis.

Main Methods:

• A case report of a patient diagnosed with Takayasu's arteritis.
• Angiographic evaluation to assess vascular involvement and collateralization.
• Detailed analysis of the identified coronary-carotid artery collateral pathway.

Main Results:

• The patient exhibited vasculitic involvement and critical stenosis of subclavian and carotid arteries.
• Cerebral perfusion was maintained by collateral flow originating from mesenteric arteries and the coronary artery.
• This represents the first reported instance of coronary-carotid artery collateral formation in Takayasu's arteritis.

Conclusions:

• Coronary-carotid artery collateral formation is a previously undescribed angiographic finding in Takayasu's arteritis.
• This case demonstrates the capacity for extensive and unusual collateral development in response to arterial inflammation and stenosis.
• Further research into collateral circulation patterns in Takayasu's arteritis is warranted.