In this case report, we present to an 81-year-old patient with posterior system infarct findings and persistent trigeminal artery variation.
📌 3 Key Takeaways
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Objective & Hypothesis:The persistent trigeminal artery (PTA) is a persistent, primitive, embryonic anastomosis that provides the blood flow between the vertebro-basilar system and the carotid system.
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Key Findings & Data:The presence of PTA anastomosis may create an advantage by providing collateral circulation during a stroke as in cases of leptomeningeal collaterals, external-internal carotid artery anastomoses, and the polygon of Willis.
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Conclusion & Impact:In this case report, we present to an 81-year-old patient with posterior system infarct findings and persistent trigeminal artery variation.
🔬Design:Case Report
📍Scope:Comprehensive Sample
⚙️Variables:Persistent trigeminal artery · posterior arterial system infarction · hypotension
Abstract
The persistent trigeminal artery (PTA) is a persistent, primitive, embryonic anastomosis that provides the blood flow between the vertebro-basilar system and the carotid system. The presence of PTA anastomosis may create an advantage by providing collateral circulation during a stroke as in cases of leptomeningeal collaterals, external-internal carotid artery anastomoses, and the polygon of Willis. However, patients with this variation are more susceptible to the development of non-occlusive posterior arterial system infarction when they experience hypotension attacks. In the literature, there are only few case reports on non-occlusive posterior system infarction associated with PTA variation. In this case report, we present to an 81-year-old patient with posterior system infarct findings and persistent trigeminal artery variation.
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