Massachusetts Chapter of the American College of Surgeons

Back to 2022 Display Posters


Robotic-assisted versus Laparoscopic Cholecystectomy – A nationwide propensity score-matched analysis of outcomes, costs, and readmissions
Dias Argandykov, MD, Jefferson A. Proaño-Zamudio, MD, Mary Bokenkamp, MD, Angela M. Renne, BS, May Abiad, MD, Charudutt N. Paranjape, MD, MBBS, John O. Hwabejire, MD, MPH, Jonathan Parks, MD, Haytham M.A. Kaafarani, MD, MPH, George Velmahos, MD, PhD
Division of Trauma, Emergency Surgery, and Surgical Critical Care, Department of Surgery, Massachusetts General Hospital, Boston, MA. USA

Background: Despite the wide adoption of robotic-assisted cholecystectomy (RAC), recent studies reported increased rates of complications associated with RAC compared to laparoscopic cholecystectomy (LC). The aim of this study was to compare outcomes, costs, and readmission rates between the two operative approaches.
Methods: The 2019 National Readmission Database was queried to identify patients undergoing robotic or laparoscopic cholecystectomy. Patients who presented to hospitals that offered both surgical modalities were included. Propensity score matching (PSM) was performed to compare primary outcomes, including complications and readmissions, between RAC vs. LC.
Results: Of 46,104 cholecystectomy patients, 4,474 (9.7%) had RAC. A total of 4,389 patients undergoing LC and 4,389 patients undergoing RAC were matched. Figure 1 shows well-balanced covariate distribution following PSM. After matching, RAC patients had a decreased 30-day surgical site infections (SSI) rate compared to LC. There were no differences in mortality, 30- and 90-day readmission rates, and other postoperative complications (Table 1) but the hospital cost of RAC was higher compared to LC by an average of 15%.
Conclusion: In this nationwide analysis, RAC patients did not experience higher complication and readmission rates than LC patients, as previously reported. RAC was associated with lower SSI rates but higher hospital costs.


Back to 2022 Display Posters