Gorrie et al (2010) substantively added to the literature with their new article regarding vascular loops (VLs) and microvascular compression (MVC) as a cause of unexplained unilateral auditory symptoms.
Since the 1970s, the pioneering work of Jannetta (with regard to VLs impinging upon cranial nerves) has potentially explained hemi-facial spasm, trigeminal neuralgia. Additionally, some authors have speculated as to the presence of VLs with regard to VIIIth nerve symptoms, such as unilateral tinnitus, vertigo, and unilateral hearing loss.