Key result
Obesity was not associated with an increased risk of 30-day mortality (6% vs 4.7%, p=0.59) or postoperative complications after coronary artery bypass grafting compared to non-obese patients.
Why the study?
Does obesity affect early adverse events in patients undergoing isolated coronary artery bypass grafting?
Population
586 patients who underwent isolated coronary artery bypass grafting (CABG)
Comparison
Obesity (BMI ≥ 30 kg/m2) vs Non-obese (BMI ≤ 30 kg/m2)
Design
Cohort
Follow-up
in-hospital
Authors
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Obesity flags CABG patients with more comorbidities; leaves open whether BMI independently worsens early outcomes.
Cohort (n=586)
No
Does obesity affect early adverse events in patients undergoing isolated coronary artery bypass grafting?
Absolute Event Rate: 6% vs 4.7%
p-value: p=0.59
Obesity does not increase early adverse events after CABG and may be associated with lower rates of perioperative MI and need for hemodynamic support, supporting the obesity paradox.
Aithoussa et al. (2017) conducted a cohort in Coronary Artery Disease requiring CABG (n=586). Obesity (BMI ≥ 30 kg/m2) vs. Non-obese (BMI < 30 kg/m2) was evaluated on 30-day mortality (p=0.59). Obesity was not associated with an increased risk of 30-day mortality (6% vs 4.7%, p=0.59) or postoperative complications after coronary artery bypass grafting compared to non-obese patients.
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