A group of high-risk surgical patients experience a much higher morbidity and mortality compared to a low-risk patient. The authors are from Queen Mary’s School of Medicine and Denistry, St. George’s Hospital, CHKS Ltd (Alcester), and the Intensive Care National Audit & Research Centre in England.


Predictors identifying a high-risk surgical patient:

(1) advanced age

(2) emergency surgery

(3) complex surgery

(4) multiple comorbid conditions



• The age of the standard population was 38 to 69 years vs 63 to 83 years in the high-risk population. An age >= 65 years will be used in the implementation.


The risk for the patient increased with the number of high-risk predictors present.


The highest mortality rate occurred in patients admitted to the ICU following initial preoperative care on a hospital ward.


To read more or access our algorithms and calculators, please log in or register.