PulseRider-assisted coil embolization for an unruptured internal carotid artery-persistent primitive trigeminal artery aneurysm

J Stroke Cerebrovasc Dis. 2023 Feb;32(2):106876. doi: 10.1016/j.jstrokecerebrovasdis.2022.106876. Epub 2022 Dec 2.


A persistent primitive trigeminal artery (PPTA) is a vessel remnant of carotid-vertebrobasilar anastomosis. The aneurysm at the bifurcation of the internal carotid artery (ICA) and PPTA tends to have a broad neck with the branch incorporated into the sac. Because PPTA supplies to the posterior circulation and branches off direct pontine perforators, PPTA preservation should always be considered when treating PPTA aneurysms to avoid ischemic complications.We report a case of the wide-neck ICA-PPTA aneurysm successfully treated with the PulseRider-assisted coil embolization, resulting in complete occlusion with PPTA patency. Relevant anatomy and endovascular strategy of the PPTA aneurysms are discussed.

Keywords: Cerebral aneurysm; Coil embolization; Persistent primitive trigeminal artery; PulseRider.

Publication types

  • Case Reports

MeSH terms

  • Basilar Artery
  • Carotid Artery Diseases* / complications
  • Carotid Artery Diseases* / diagnostic imaging
  • Carotid Artery Diseases* / therapy
  • Carotid Artery, Internal / diagnostic imaging
  • Embolization, Therapeutic* / adverse effects
  • Humans
  • Intracranial Aneurysm* / complications
  • Intracranial Aneurysm* / diagnostic imaging
  • Intracranial Aneurysm* / therapy