• K W Cheng, C H Wang, R T Ho, B Jawan, and J H Lee.
• Department of Anesthesiology, Chang Gung Memorial Hospital, Kaohsing.
• Acta Anaesthesiol. Sin. 1994 Mar 1;32(1):37-43.

AbstractWe studied retrospectively the outcome of surgery and anesthesia in 294 patients aged 80 and older who underwent 362 surgical procedures. Of these, 52 cases (14.4%) were admitted to intensive care unit (ICU) post-operatively. The 48-hour, 48-hour-to-30-day and overall mortality rates were 0.8%, 3.8% and 5.2% respectively. ICU. admission and mortality rate were closely associated with the ASA physical status classification. The overall mortality rates were 1.3%, 5.7% and 27% in class II, III and IV respectively. The respective ICU admission rates were 3%, 20% and 56%. ICU admission rate and mortality rate were 42.5% and 13.8% in emergency surgery vs. 5.8% and 2.5% in elective surgery. Patients with 3 or more co-existing diseases had the mortality rate of 23% and the rates of ICU admission and mortality for those with 3 or more peri-operative complications were 22% and 16% respectively vs. 11% and 4% for those with 2 or less peri-operative complications. General surgery was associated with the highest mortality rate (15%) than other type of procedures. 22 of 74 cases who underwent intra-abdominal surgery required controlled ventilation for more than 24 hours post-operatively. 59% (13 cases) of such cases could not weaned successfully from ventilators and died subsequently. Only 2.5% (7 cases) of cases who underwent extra-pleural and extra-peritoneal procedures required controlled ventilation for more than 24 hours post-operatively. Of these, 2 died subsequently. For comparison, the study were artificially divided into two phases, each of three years long: they were the period from 1986-1988 and the period from 1989-1992.(ABSTRACT TRUNCATED AT 250 WORDS)

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