• SLEEP DISORDERS

In the paper by Boentert et al1 the authors report an increased incidence of obstructive sleep apnoea (OSA), restless leg syndrome (RLS) and periodic limb movements in sleep (PLMS) in a study of 61 patients with Charcot-Marie-Tooth disease type 1 (CMT1) (mostly CMT1A) compared to a control group of insomnic patients. OSA was reported in almost 38% of patients (5% controls) with a male preponderance and RLS in 41% (16% controls) with a female preponderance. Although PLMS was common (41% of CMT1 patients), it did not reduce sleep quality. The severity of OSA is measured by the apnoea–hypopnoea index (AHI), the …