Coronary artery bypass surgery: emerging trends in mortality.
In a consecutive series of 4,697 patients undergoing coronary artery bypass surgery, these risk factors were found to be significant for increased postoperative mortality: age greater than 70, female sex, unstable angina, prior myocardial infarction, hypertension, diabetes mellitus, and ejection fraction less than .40. A comparison by year (1980-1988) revealed a steadily increasing incidence of these risk factors. Future analysis of coronary artery bypass mortality should include risk-factor stratification.
Macmanus
Q
Q
Division of Cardiovascular Surgery, Fairfax Hospital, Falls Church, VA 22046.
Lefrak
E A
EA
Speir
A M
AM
Landolt
C C
CC
Burton
N A
NA
Akl
B F
BF
Albus
R A
RA
D000368:Aged; D001026:Coronary Artery Bypass / Q000401:mortality*; D003327:Coronary Disease / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000401:mortality*; D012307:Risk Factors; D015996:Survival Rate; D014768:Virginia / Q000453:epidemiology