Ladner Travis R, Ehtesham Moneeb, Davis Brandon J, Khan Imad S, Ghiassi Mayshan, Ghiassi Mahan, Singer Robert J
Department of Neurosurgery, Vanderbilt University, Nashville, Tennessee, USA.
BMJ Case Rep. 2013 Apr 25;2013:bcr2013010703. doi: 10.1136/bcr-2013-010703.
The persistent primitive trigeminal artery (PTA) is a rare anastomosis between the carotid artery and basilar artery. While most PTAs are asymptomatic, lateral variants can occasionally compress the trigeminal nerve and precipitate trigeminal neuralgia. Aneurysms of the PTA are exceptionally rare in the literature and have not previously been associated with trigeminal neuralgia. We present the first case of an aneurysm of the PTA causing trigeminal neuralgia. The patient underwent coil embolization of the aneurysm which relieved her symptoms. We propose embolization as a viable therapeutic option for the resolution of trigeminal neuralgia when the condition is secondary to irritation by the high velocity pulsatile flow of an aneurysm.
永存原始三叉动脉（PTA）是一种罕见的颈动脉与基底动脉之间的吻合。虽然大多数PTA无症状，但外侧变异型偶尔可压迫三叉神经并引发三叉神经痛。PTA动脉瘤在文献中极为罕见，此前未与三叉神经痛相关联。我们报告首例PTA动脉瘤导致三叉神经痛的病例。该患者接受了动脉瘤的弹簧圈栓塞治疗，症状得以缓解。我们建议，当三叉神经痛继发于动脉瘤高速搏动血流刺激时，栓塞是一种可行的治疗选择。
