Sixty @entity1 with primitive hemifacial @entity2473 were treated by means of a minimally invasive retrosigmoid approach in which endoscopic and microsurgical procedures were combined. Intraoperative endoscopic examination of the cerebellopontine angle showed that for 56 of the @entity1 vessel-nerve conflict was the cause of hemifacial @entity2473 . The most common offending vessel was the posterior @entity5487 (39 @entity1 ), next was the vertebral artery (23 @entity1 ), and last was the anterior @entity5487 (16 @entity1 ). Nineteen of the @entity1 had multiple offending vascular loops. In one @entity1 , another cause of hemifacial @entity2473 was an epidermoid @entity5 of the cerebellopontine angle. For three @entity1 , it was not possible to determine the exact cause of the @entity74 . Follow-up information was reviewed for 54 of 60 @entity1 ; the mean follow-up period was 14 months. Fifty of the @entity1 were in the vessel-nerve conflict group. Forty of the 50 were free of symptoms, and four had marked improvement. The overall success rate was 88%, and there was minimal morbidity (no @entity3541 , two cases of severe @entity393 ).

Hemifacial XXXX : endoscopic vascular decompression.

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor'] @entity2473 :: ('MESH:D013035', 'Disease') :: ['spasm'] @entity74 :: ('MESH:D030342', 'Disease') :: ['facial disorder'] @entity5487 :: ('MESH:D014854', 'Disease') :: ['inferior cerebellar artery'] @entity3541 :: ('MESH:D005158', 'Disease') :: ['facial palsy'] @entity393 :: ('MESH:D034381', 'Disease') :: ['hearing loss']
@entity2473 :: (MESH:D013035,Disease) :: ['spasm']
