Sudden Cardiac Death and OSA

Too many deaths in the US each year is attributed to sudden cardiac death (SDC). Studies in Minnesota was done on almost 11k adults over the course of 15 years. Conclusions from this study show that the decrease in oxygen levels at night (nocturnal hypoxemia) caused by OSA predicted SCD to be independent of any other risk factors. Oxygen saturation drops when air doesn't flow into the lungs - if the lowest oxygen saturation was 78% or less, the risk of SDC is increased by 80%.

 

Sources:

http://www.ncbi.nlm.nih.gov/pubmed/23770166

http://www.webmd.com/sleep-disorders/sleep-apnea/news/20130611/sleep-apnea-may-boost-risk-of-sudden-cardiac-death