CPAP doesn’t cut cardiovascular risk

It may prevent daytime sleepiness, but continuous positive airway pressure does not reduce cardiovascular risk among people with obstructive sleep apnoea (OSA), a major Australian-led trial has shown.

A randomised trial of CPAP in 2717 patients with mild-to-moderate OSA and cardiovascular disease found that three years of treatment was not associated with any reduction in serious cardiovascular events compared with a control group.

The Australian researchers who led the international study said they were surprised by the negative finding, given the strong association between OSA and cardiovascular