AirSeal® versus conventional insufflation in robot-assisted radical prostatectomy: effects on operative efficiency, pain, and perioperative outcomes

BACKGROUND: Intelligent Flow System has been developed to provide continuous pressure regulation and smoke evacuation; however, its clinical impact during RARP remains incompletely defined. OBJECTIVE: To compare perioperative, oncological, and postoperative recovery outcomes between the AirSeal system and conventional insufflation systems during RARP. METHODS: We retrospectively analyzed patients who underwent RARP at a high-volume tertiary center in a retrospective before-and-after cohort design. Patients were stratified according to the insufflation system used during surgery: conventional insufflation system (CIS) or the AirSeal system. Demographic characteristics, perioperative parameters, pathological outcomes, postoperative complications (Clavien-Dindo), postoperative pain scores and opioid consumption were evaluated. RESULTS: A total of 749 patients were included (CIS: 398; AirSeal: 351). Baseline demographic and clinical characteristics were comparable between the groups. Operative time was significantly shorter in the AirSeal group (183 ± 77.7 vs. 217.4 ± 73.0 min; p < 0.001). Estimated blood loss, transfusion rates, and length of hospital stay were similar between the groups. Pathological stage distribution differed between the groups, with a higher proportion of locally advanced disease (≥pT3) in the AirSeal cohort (49.3% vs 39.2%; p = 0.005). However, other oncological outcomes, including pathological ISUP grade distribution, lymph node involvement, and positive surgical margin rates, were comparable. Overall postoperative complication rates were similar between the groups; however, high-grade complications (Clavien-Dindo ≥III) occurred less frequently in the AirSeal group. Postoperative pain scores at 1, 6, and 24 hours were significantly lower in the AirSeal group (all p < 0.001), postoperative morphine consumption at 24 hours was also significantly reduced (p < 0.001). CONCLUSIONS: Use of the AirSeal insufflation system during RARP was associated with shorter operative times, lower postoperative pain scores, and less frequent high-grade complications. Positive surgical margin rates and lymph node involvement were comparable between the groups. However, given the retrospective before-and-after design, differences in surgical periods and pneumoperitoneum pressure between the groups, these findings should be considered observational and hypothesis-generating.