Night surgery doubles risk of death: study

Patients who have surgery very late at night or in the early hours of the morning are twice as likely to die than those who have surgery during the day, according to new research.

A Canadian study presented at the World Congress of Anaesthesiologists (WCA) in Hong Kong also found those operated on later in the working day or in the early evening were at a higher risk of dying post-surgery compared with those who undergo surgery during regular working hours.