AICA Anatomic Variation as a Factor of Worse Prognosis for the Surgical Treatment of Hemi-Facial Spasm

Authors

  • Carla Reizinho Serviço de Neurocirurgia. Hospital Egas Moniz. Centro Hospitalar Lisboa Ocidental. Lisboa. Portugal.
  • Miguel Casimiro Serviço de Neurocirurgia. Hospital Egas Moniz. Centro Hospitalar Lisboa Ocidental. Lisboa. Portugal.
  • Ana Luís Serviço de Neurocirurgia. Hospital Egas Moniz. Centro Hospitalar Lisboa Ocidental. Lisboa. Portugal.
  • Manuel Dominguez Serviço de Neurocirurgia. Hospital Egas Moniz. Centro Hospitalar Lisboa Ocidental. Lisboa. Portugal.

DOI:

https://doi.org/10.20344/amp.4257

Abstract

Hemifacial spasm is a neurovascular compression syndrome. These consist in a contacting vessel (most often an artery) to a cranial nerve in cerebelar-pontine angle. The most common is trigeminal neuralgia caused by contact between the superior cerebellar artery and the trigeminal nerve, and less commonly hemifacial spasm, vertiginous syndrome by contact of the antero inferior cerebelar artery with the eighth cranial nerve, glossopharyngeal neuralgia by contact of the postero inferior cerebelar artery and the IX cranial nerve, etc. These syndromes typically occur after the fifth decade of life, when the arterial tortuosity increases due to the arteriosclerosis process. They are however associated anatomical variations of the origin and course of the arteries, which facilitate contact with the nerves of
the cerebellar-pontine angle. In hemifacial spasm, the vessel most often related is antero inferior cerebelar and the authors describe a case of a rare anatomical variant in the course of the artery that motivated the development of the disease, which was identified intraoperatively on a surgical approach to the cerebellar-pontine for vascular microdescompression.

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Author Biographies

Carla Reizinho, Serviço de Neurocirurgia. Hospital Egas Moniz. Centro Hospitalar Lisboa Ocidental. Lisboa. Portugal.

Miguel Casimiro, Serviço de Neurocirurgia. Hospital Egas Moniz. Centro Hospitalar Lisboa Ocidental. Lisboa. Portugal.

Ana Luís, Serviço de Neurocirurgia. Hospital Egas Moniz. Centro Hospitalar Lisboa Ocidental. Lisboa. Portugal.

Manuel Dominguez, Serviço de Neurocirurgia. Hospital Egas Moniz. Centro Hospitalar Lisboa Ocidental. Lisboa. Portugal.

Published

2013-06-21

How to Cite

1.
Reizinho C, Casimiro M, Luís A, Dominguez M. AICA Anatomic Variation as a Factor of Worse Prognosis for the Surgical Treatment of Hemi-Facial Spasm. Acta Med Port [Internet]. 2013 Jun. 21 [cited 2024 Nov. 8];26(3):273-5. Available from: https://actamedicaportuguesa.com/revista/index.php/amp/article/view/4257

Issue

Section

Case Report