Key result
Obesity significantly increased median operating times by 5 minutes (7%) in carotid endarterectomy and 15 minutes (10%) in central vascular procedures compared to normal weight patients.
Why the study?
Does obesity increase operating time in patients undergoing central and peripheral vascular surgical procedures?
Cohort (n=14,628)
Yes
Does obesity increase operating time in patients undergoing central and peripheral vascular surgical procedures?
Effect estimate: 15 minutes longer (10% increase) for central vascular procedures
p-value: p=0.001
Obesity is associated with a statistically significant but clinically modest increase in operating times for carotid endarterectomy and central vascular procedures.
Obesity may warrant OR scheduling adjustments in vascular surgery; leaves open effects on complications or outcomes.
INTRODUCTION: The influence of body mass index (BMI) on operating times in central and peripheral vascular surgical procedures was investigated. REPORT: A national cohort of Danish patients who underwent a vascular procedure between 1983 and 2012 was used for analysis. Data were analysed with pairwise comparisons of BMI groups for operating times using the independent samples Kruskall-Wallis test. DISCUSSION: A total of 3,255 carotid endarterectomies; 6,885 central vascular procedures; and 4,488 peripheral bypasses were included for the analysis. Median operating times for carotid endarterectomy and central vascular procedures were, respectively, 5 and 15 minutes longer in obese patients than in normal weight patients. This represents a 7% and 10% increase in median operating times, respectively. Linear and multi-adjusted linear regressions were conducted adjusting for confounders, showing a significant correlation between BMI and operating time. Obesity significantly increased the operating times in carotid endarterectomy and central vascular procedures. These may have ramifications for the individual operative stress but not necessarily on logistical operation planning.
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Durup-Dickenson et al. (2017) conducted a cohort in Vascular disease requiring surgery (n=14,628). Obesity (BMI ≥ 30) vs. Normal weight (BMI 18.5-24.99) was evaluated on Operating time (time from incision to skin closure) (15 minutes longer (10% increase) for central vascular procedures, p=0.001). Obesity significantly increased median operating times by 5 minutes (7%) in carotid endarterectomy and 15 minutes (10%) in central vascular procedures compared to normal weight patients.
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