"Obstructive Sleep Apnea and the Risk of Sudden Cardiac Death"
JACC Aug 2013
http://content.onlinejacc.org/article.aspx?articleid=1699335
"Conclusions  In a population of 10,701 adults referred for polysomnography, OSA predicted incident SCD, and the magnitude of risk was predicted by multiple parameters characterizing OSA severity. Nocturnal hypoxemia, an important pathophysiological feature of OSA, strongly predicted SCD independently of well-established risk factors. These findings implicate OSA, a prevalent condition, as a novel risk factor for SCD."