The Protective Effect of a Persistent Trigeminal Artery on Brain Stem Infarctions: A Follow-up Case Report

A persistent trigeminal artery (PTA) represents an embryonic vascular anastomosis connecting the carotid and basilar arterial systems. Little is known about its protective role in cases of basilar artery occlusion. We followed up a 63-year-old man who had suffered a brain stem infarction due to basi...

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Veröffentlicht in:	Internal Medicine 1998, Vol.37(3), pp.334-337
Hauptverfasser:	ITO, Yasuhiro, WATANABE, Hirohisa, NIWA, Hisayoshi, HAKUSUI, Shigetaka, ANDO, Tetsuo, YASUDA, Takeshi, SOBUE, Gen, YANAGI, Tsutomu
Format:	Artikel
Sprache:	eng
Schlagworte:	Arteriosclerosis - complications Arteriosclerosis - diagnosis Basilar Artery - abnormalities basilar artery occlusion Biological and medical sciences Brain Stem - blood supply Carotid Arteries - abnormalities Cerebral Angiography Collateral Circulation Follow-Up Studies good recovery Humans Infarction - diagnosis Infarction - etiology Magnetic Resonance Imaging Male Medical sciences Middle Aged Neurology Recurrence Vascular diseases and vascular malformations of the nervous system
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Zusammenfassung:	A persistent trigeminal artery (PTA) represents an embryonic vascular anastomosis connecting the carotid and basilar arterial systems. Little is known about its protective role in cases of basilar artery occlusion. We followed up a 63-year-old man who had suffered a brain stem infarction due to basilar artery stenosis and was found to have a PTA. Although a second brain stem infarction due to basilar artery occlusion developed, the circulation to the brain stem was well maintained via collateral flow from the PTA, and the patient demonstrated good recovery. A PTA may function as an anastomosis between the carotid and basilar systems, thus preventing a more serious infarction. (Internal Medicine 37: 334-337, 1998)
ISSN:	0918-2918 1349-7235
DOI:	10.2169/internalmedicine.37.334