Vestibular Paroxysmia with Neurovascular Cross Compression and Antiepileptic Drugs: A Systematic Review and Discussion of Physiopathology.

Vestibular paroxysmia (VP) is a disabling medical condition characterized by a high recurrence rate of vertigo. VP is classically associated with the presence of contact between a vascular structure and the cochleovestibular nerve, a neurovascular cross compression (NVCC). Antiepileptic drugs are the first-line treatment for disabling symptoms. We conducted a systematic review to evaluate their efficacy in patients with VP, and whose imaging shows NVCC. All published studies in PubMed databases until October 2024 were included. A total of seven studies were selected. Carbamazepine and oxcarbazepine are by far the most widely used drugs, but there is still a lack of data showing the efficacy of antiepileptic drugs in a large sample of patients. This suggests that a future randomized controlled trial with a satisfactory sample size of VP patients with NVCC and comparing several drugs with neuroprotective properties is needed. Further, as imaging in some of the patients with obvious clinical signs does not always support this diagnosis, we discussed VP physiopathology and the different types of VP published in the literature, including those with no radiological support for NVCC.