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Endoscopic anatomy of persistent trigeminal artery: a cadaveric study
F Komatsu1, M Komatsu, A Di Ieva
1Center for Anatomy and Cell Biology, Department of Systematic Anatomy, Medical University of Vienna, Vienna, Austria. fuminarikomatsu@gmail.com
Minimally Invasive Neurosurgery : MIN
|January 27, 2012
Summary
Endoscopic approaches offer a detailed view of the persistent trigeminal artery (PTA), a rare vascular variation. These methods enhance anatomical understanding of the PTA and its relationship with surrounding cranial nerves.
Area of Science:
- Neurosurgery
- Vascular Anatomy
- Endoscopic Techniques
Background:
- Persistent trigeminal artery (PTA) is a rare carotid-basilar anastomosis.
- PTA can complicate vascular and neoplastic pathologies.
Purpose of the Study:
- To familiarize with the anatomy of the persistent trigeminal artery (PTA) using endoscopic visualization.
- To evaluate the utility of different endoscopic approaches for PTA visualization.
Main Methods:
- Endoscopic approaches (supraorbital, endonasal, retrosigmoid) were performed on a fresh cadaver.
- Utilized 4-mm, 0- and 30-degree rigid endoscopes for visualization.
Main Results:
- The supraorbital extradural approach provided good visualization of the PTA origin and cavernous portion.
- The endonasal route allowed visualization of the cisternal portion and basilar artery confluence.
- The retrosigmoid approach demonstrated the relationship between PTA, trigeminal nerve, and abducent nerve.
Conclusions:
- Endoscopic approaches offer excellent visualization of the PTA.
- These techniques improve anatomical comprehension of the PTA and its surrounding structures.
