Why the study?
Does body mass index affect 30-day perioperative outcomes in patients undergoing major surgery?
Population
Individuals undergoing one of 16 major surgeries recorded in the ACS-NSQIP
Comparison
Body mass index derangements vs Normal BMI patients
Design
Cohort
Follow-up
30-day
Key result
Morbid obesity increased odds of wound and other complications, while overweight/obese status decreased odds of perioperative mortality and prolonged length of stay compared to normal BMI.
Authors
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Supports BMI-stratified risk counseling without practice change; leaves open procedure-specific causal effects in major surgery.
Cohort (n=141,802)
Yes
Does body mass index affect 30-day perioperative outcomes in patients undergoing major surgery?
The effect of BMI on surgical outcomes is procedure-specific, with morbid obesity increasing complication risks while overweight/obese status may be associated with decreased mortality and complications in certain procedures.
Abdollah et al. (2015) conducted a cohort in Patients undergoing major surgery (n=141,802). Body mass index (BMI) vs. Normal BMI was evaluated on 30-day perioperative outcomes (complications, blood transfusion, length-of-stay, re-intervention, readmission, and perioperative mortality). Morbid obesity increased odds of wound and other complications, while overweight/obese status decreased odds of perioperative mortality and prolonged length of stay compared to normal BMI.
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