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[Hemifacial spasm. Etiology and management].

B Girard¹, G de Saint Sauveur², M Tatry¹

¹Service d'ophtalmologie, hôpital Tenon, Sorbonne université, Assistance publique-Hôpitaux de Paris, 4, rue de la Chine, 75970 Paris cedex 20, France.

Journal Francais D'Ophtalmologie

|January 4, 2021

Summary

Hemifacial spasm (HFS) etiology was investigated in 198 patients. MRI revealed vascular compression in 34.5% of cases, highlighting its importance in diagnosing HFS.

Keywords:

Botulinum neurotoxin A Conflit vasculonerveux Diplopia Diplopie Facial nerve Facial palsy Hemifacial spasm IRM MRI Nerf facial Neurotoxine botulique A Neurovascular compression Ocular trauma Paralysie faciale Ptosis Spasme hémifacial Traumatisme oculaire

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Area of Science:

Neurology
Medical Imaging

Background:

Hemifacial spasm (HFS) involves involuntary facial muscle contractions.
Understanding the causes of HFS is crucial for effective management.

Purpose of the Study:

To investigate the underlying causes of hemifacial spasm (HFS).
To evaluate the diagnostic utility of MRI in identifying HFS etiology.

Main Methods:

Retrospective analysis of 198 patients with HFS undergoing MRI.
Clinical data review to determine the cause of HFS.

Main Results:

An etiology was identified in 52.5% of patients.
MRI revealed vascular compression in 34.5% of HFS cases.
Brain tumors were found in 1.5% of cases; MRI was normal in 64.5%.

Conclusions:

MRI, particularly of the posterior fossa, is essential for diagnosing HFS.
Identifies primary HFS due to vascular compression and rules out tumors.
Botulinum neurotoxin A injections are a primary treatment; microvascular decompression is an option.