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Robotic-Assisted and Laparoscopic Sigmoid Resection.

Background and Objectives: Published comparisons of minimally invasive approaches to colon surgery are limited. The objective of the current study is to compare the effectiveness of robotic-assisted and laparoscopic sigmoid resection.

Methods: A multicenter retrospective comparative analysis of perioperative outcomes from consecutive robotic-assisted and laparoscopic sigmoid resections performed between 2010 and 2015 by six general and colorectal surgeons, who are experienced in both robotic-assisted and laparoscopic surgical techniques and who had >50 annual case volumes for each approach. Baseline characteristics and surgical risk factors between the two groups were balanced using a propensity score methodology with inverse probability of treatment weighting. Mean standardized differences were reported, and in all instances, a p -value < 0.05 was considered statistically significant.

Results: Three hundred thirty-six cases (robotic-assisted, n = 211; laparoscopic, n = 125) met eligibility criteria and were included in the study. Following weighting, patient demographics and baseline characteristics were comparable between the robotic-assisted (n = 344) and laparoscopic (n = 349) groups. The laparoscopic group was associated with shorter operating room and surgical times. The robotic-assisted group had lower estimated blood loss and shorter time to first flatus compared to the laparoscopic group. Rates of complications post discharge to 30 d tended to be lower for the RA group: 5.1% vs 8.6% [ p = 0.0657]. The RA group also had lower rates of readmissions and reoperations: 4% vs 8% [ p = 0.029] and 0.5% vs 5.1% [ p = 0.0003], respectively.

Conclusions: Robotic-assisted sigmoid colon resection is clinically effective and provides a minimally invasive alternative to the laparoscopic approach with improved intraoperative and postoperative outcomes for colorectal patients.

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