JAMA
Published May 14, 2019 | 14:00 EDT (Summary video from JAMA Network)
Among adults undergoing major non-cardiac surgery, sleep apnea increased patients’ risk of heart attacks after surgery. The link was found only in patients who had severe obstructive sleep apnea that had been undiagnosed.

Editorial 
Canadian authors: Stanley Tam, Scarborough Health Network, Ontario – stanleytam_1@hotmail.com; Frances Chung, University of Toronto – frances.chung@uhn.ca