Design: Retrospective chart review from 1/1/15 - 1/1/22

Setting: Single multi-hospital healthcare system of five community hospitals, two teaching and three non-teaching

Patients or Participants: 4601 patients with age ≥ 18 whom underwent minimally invasive hysterectomy for benign indications

Interventions: None

Measurements and Main Results: Comparison was made of BMI classes stratified by Center for Disease Control and Prevention (CDC) classification with statistical analysis via the Kruskal-Wallis rank sum test. Surgery duration increased as BMI increased with surgical duration median of 111, 125, 125, 127, 131, and 136 minutes for BMI groups <18.5, 18.5 – 24.9, 25 – 29.9, 30 – 34.9, 35 – 39.9, and >40 respectively (p<0.001). Length of time in the Post Anesthesia Care Unit (PACU) increased with medians of 75, 98, 99, 99, 104, and 113 minutes respectively (p<0.001). Overall length of admission remained similar across classes at median of 10, 11, 11, 11, 10, and 11 hours (p=0.2) with similar times across classes in both the 1st and 3rd quartiles. Average pain scores ranged from 3.94 - 4.60 across classes (p=0.022). Median pain scores ranged from 4.00 - 5.00 across classes (p=0.042). Average MME consumed by different BMI classes ranged from 9.33 - 10.00 MME (p<0.001) with median range of 9.4 - 10.0 MME (p<0.001).

Conclusion: BMI class was found to not be associated with increased length of admission after minimally invasive hysterectomy. While differences in PACU pain scores and opioids consumed in the 6-hours post-op window were statistically significant, they are unlikely to hold any clinical difference