Sleep apnoea 'ups risk' of cardiac events after surgery

Supplemental oxygen did not modify the association

People who have severe obstructive sleep apnoea may be more likely to experience cardiovascular problems after major noncardiac surgery, a study suggests.

Cardiac events

Compared with patients without apnoea, those with severe apnoea were more than twice as likely to die of heart complications or experience events such as myocardial infarction and stroke within 30 days of the operation, researchers report.

The researchers performed sleep studies on 1218 patients in five countries before they had surgery, finding two-thirds had unrecognised sleep apnoea.