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Updated: Jan 28, 2026
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Minimally Invasive Thumb-sized Pterional Craniotomy for Surgical Clip Ligation of Unruptured Anterior Circulation Aneurysms
Published on: August 11, 2015
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Flow-Diversion for Complex Posterior Communicating Artery Aneurysms Associated With a Fetal Posterior Circulation
Jacob F Baranoski1, Sarah Merrill1, Caleb Rutledge1
1Department of Neurosurgery Barrow Neurological Institute St. Joseph's Hospital and Medical Center Phoenix AZ.
Stroke (Hoboken, N.J.)
|January 26, 2026
Summary
Flow-diverting stents effectively treat complex intracranial aneurysms, even those with a fetal posterior communicating artery (FPCoA). This study shows FDSs are safe and effective for FPCoA aneurysms, contrary to prior research.
Area of Science:
- Neurology
- Interventional Neuroradiology
- Vascular Surgery
Background:
- Flow-diverting stents (FDSs) are used for complex intracranial aneurysms.
- Efficacy of FDSs for posterior communicating artery aneurysms with a fetal origin (FPCoA) is debated.
- FPCoA aneurysms originating from the aneurysm neck/dome are challenging for standard treatments.
Purpose of the Study:
- To evaluate the safety and efficacy of stand-alone FDS treatment for intracranial aneurysms associated with FPCoA.
- To assess angiographic and clinical outcomes in patients treated with FDS for FPCoA aneurysms.
Main Methods:
- Retrospective analysis of 16 patients with unruptured FPCoA aneurysms treated with single FDS.
- FDS deployment focused on optimal wall apposition and aneurysm neck coverage.
- Exclusion of aneurysms amenable to standard coil embolization.
Main Results:
- Excellent angiographic results in 75% of patients (12/16).
- Satisfactory clinical outcomes and complete aneurysm obliteration in 62.5% (10/16).
- No additional treatments were required; FPCoA patency was maintained in most cases, with no posterior circulation ischemia.
Conclusions:
- FDS placement is a safe and effective treatment for FPCoA aneurysms.
- Optimized FDS deployment technique may enhance successful outcomes.
- FDS treatment is a valuable option for complex FPCoA aneurysms.
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