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Trigeminal neuropathy--new observations

P J Jannetta, L J Robbins

    Neurosurgery
    |October 1, 1980
    PubMed
    Summary
    This summary is machine-generated.

    Idiopathic trigeminal neuropathy cases revealed vascular compression of the trigeminal nerve by cerebellar arteries. Microvascular decompression surgery effectively relieved pain and improved nerve function in these patients.

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    Area of Science:

    • Neurosurgery
    • Neurology

    Background:

    • Idiopathic trigeminal neuropathy presents diagnostic challenges.
    • Vascular compression is a suspected, yet often unconfirmed, etiology.

    Purpose of the Study:

    • To report cases of idiopathic trigeminal neuropathy.
    • To investigate the role of vascular compression in trigeminal nerve dysfunction.
    • To evaluate the efficacy of microvascular decompression.

    Main Methods:

    • Case series of five patients with idiopathic trigeminal neuropathy.
    • Retromastoid craniectomy with microsurgical observation of the cerebellopontine angle.
    • Microvascular decompression for identified vascular compression.

    Main Results:

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  • Vascular compression of the trigeminal nerve by the superior or anterior inferior cerebellar artery was observed in four patients.
  • Microvascular decompression resulted in pain relief and improved sensory function in all operated patients.
  • One patient with associated hypoglossal neuropathy experienced complete recovery after decompression of a medullary artery loop.

    • Conclusions:

    • Vascular compression by arteries is a significant cause of idiopathic trigeminal neuropathy.
    • Retromastoid craniectomy with microvascular decompression is an effective treatment for trigeminal neuropathy.
    • This surgical approach offers a therapeutic alternative for persistent cases, including those with intractable pain.