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Microvascular Decompression: Salient Surgical Principles and Technical Nuances
Published on: July 5, 2011
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Microvascular Decompression for Trigeminal Neuralgia with Concomitant Persistent Primitive Trigeminal Artery
1Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India.
Neurology India
|September 11, 2021
Summary
A rare case of trigeminal neuralgia (TN) caused by a persistent primitive trigeminal artery (PPTA) compressing the trigeminal nerve is presented. Microvascular decompression surgery successfully relieved the patient's symptoms.
Area of Science:
- Neurosurgery
- Vascular Neurology
- Anatomy
Background:
- Persistent primitive trigeminal artery (PPTA) is a rare embryonic remnant connecting the internal carotid artery and posterior circulation.
- PPTA is occasionally associated with neurological conditions, including trigeminal neuralgia (TN).
Observation:
- A 55-year-old male presented with medically refractory TN.
- Imaging revealed neurovascular conflict involving the trigeminal nerve.
- Intraoperative findings showed the superior cerebellar artery (SCA) compressing the trigeminal nerve, with a PPTA in close proximity.
Findings:
- The PPTA's close association with the trigeminal nerve was confirmed.
- Microvascular decompression using Teflon effectively separated the trigeminal nerve from both the SCA and PPTA.
Implications:
- This case highlights the importance of identifying PPTA in TN patients.
- Surgical management of TN associated with PPTA can be successful.
- The video demonstrates operative nuances for this rare condition.
