Türk Beyin Damar Hast Derg. Ahead of Print: TBDHD-34392 | DOI: 10.5505/tbdhd.2024.34392

Combination of persistent trigeminal artery and ischemic stroke: Report of 2 cases

Cansu Kostakoðlu Duman, Ümit Görgülü
Department of Neurology, Ankara Bilkent City Hospital, University of Health Sciences, Ankara, Turkey

Persistent trigeminal artery (PTA) is the most common embryological anastomosis between the internal carotid artery (ICA) and basilar artery, which continues also in adult life. PTA is mostly asymptomatic but has also been described with comorbid conditions such as cerebrovascular pathologies. In this article, two cases of ischemic stroke accompanied by incidentally detected PTA are presented. In the first case, ischemic stroke with ipsilateral ICA hypoplasia and PTA were observed and in the second case, ischemic stroke with ipsilateral critical ICA stenosis and PTA were observed. The presence of minor infarction and low disability in both cases suggests that the presence of PTA may be associated with a better prognosis in ischemic stroke as it supports collateral circulation.

Keywords: Basilar-carotid artery anastomoses, persistent trigeminal artery, ischemic stroke.

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Persistan trigeminal arter ve iskemik inme birlikteliði olan 2 olgu sunumu

Cansu Kostakoðlu Duman, Ümit Görgülü
Saðlýk Bilimleri Üniversitesi, Ankara Bilkent Þehir Hastanesi, Nöroloji Kliniði, Ankara

Persistan trigeminal arter (PTA), internal karotis arter (ICA) ve baziller arter arasýnda eriþkin hayatta da devam eden en sýk embriyolojik anastomozdur. Çoðunlukla asemptomatik olarak bilinen PTA, serebrovasküler patolojiler gibi eþlik eden durumlar ile de tanýmlanmýþtýr. Bu makalede insidental saptanan PTA ve iskemik inme birlikteliðini konu alan iki olgu sunuldu. Ýlk olguda iskemik inme ile ipsilateral internal karotis arter (ICA) hipoplazisi ve PTA, ikinci olguda ise ipsilateral kritik ICA darlýðý ve PTA izlendi. Her iki olguda minör enfarkt ile prezentasyon ve dizabilitenin az olmasý PTA varlýðýnýn kollateral dolaþýmý desteklemesi sonucu iskemik inmede iyi prognoz ile iliþkili olabileceðini düþündürmektedir.

Anahtar Kelimeler: Baziler-karotid arter anastomozlarý, persistan trigeminal arter, iskemik inme.

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