Cheng YF, Xirasagar S, Yang TH, et al. - Researchers examined the risk of tinnitus within 1 year following trigeminal neuralgia using data from the Taiwan National Health Insurance Research Dataset, and a retrospective cohort study design.

The dataset provided data from 12,587 patients diagnosed with trigeminal neuralgia from January 2001 to December 2014. From the remaining patients, 12,587 comparison patients without trigeminal neuralgia were identified by propensity score matching, using gender, age, monthly income, geographic region, residential urbanization level, and tinnitus-relevant comorbidities (hyperlipidemia, diabetes, coronary heart disease, hypertension, cervical spondylosis, temporomandibular joint disorders and injury to head and neck and index year). The incidence of tinnitus was 18.21 per 100 person-years among the total 25,174 sample patients. Patients with trigeminal neuralgia exhibited the rate of 23.57 vs 13.17 among comparison patients. Findings indicates a significantly raised risk of tinnitus within 1 year of trigeminal neuralgia diagnosis vs those without the diagnosis.