DR. NEHA ARORA

Dr.Saptagirish Rambhatla

Abstract

OBJECTIVE: To study the association of hemifacial spasm (HFS) and benign essential blepharospasm (BEB) with distal and proximal vascular compression of facial nerve.

MATERIAL AND METHOD: We retrospectively analysed 15 adult patients with HFS and BEB from 2017 to 2019 who underwent MRI brain with gadolinium contrast.

RESULTS: We found that 7 of 13 HFS patients had grade 1 chavda AICA loop, 1 of 13 HFS had both grade 1 chavda AICA loop as well as tortuous vertebral artery, 1 of 13 HFS had grade 2 chavda AICA loop, 1 of 13 HFS had venous loop, 3 of 13 had tortuous vertebrobasilar artery causing facial nerve compression. 2 of 2 BEB had grade 1 chavda AICA loop causing facial nerve compression.

CONCLUSION: Neurovascular Compression of the facial nerve by venous or arterial loop at root exit zone or distal facial nerve route can present with HFS.

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