Study: Perioperative mortality 2010 to 2014

Editor's Note

This analysis of data from the National Anesthesia Clinical Outcomes Registry found several factors independently associated with increased perioperative mortality (within 48 hours of anesthesia induction):

• Increasing American Society of Anesthesiologists physical status
• Emergency case status
• Cases beginning between 4:00 pm and 6:59 am
• Patient age less than 1 year or 65 years or greater.

Included in the analysis were nearly 3 million cases performed between January 1, 2010, and May 31, 2014.