In Taiwan, an analysis of reimbursement data for 1,622 patients suffering from polymyositis or dermatomyositis and 8,109 people free of these diseases showed :
- a significant difference in the prevalence of tinnitus (16.1% versus 12.7%) and sensorineural hearing loss (9.2% versus 6.8%) in the myositis group,
- there was also a significant difference in the prevalence of vertigo (14.4% vs. 11.1%), but an analysis by pathology showed that this higher frequency only applied to polymyositis.
The potentially autoimmune origin of these ENT disorders remains to be demonstrated.
