Abstract
To conduct a prospective randomized trial to evaluate the efficacy of a novel prophylactic procedure for inguinal hernia (IH) after transperitoneal robot-assisted radical prostatectomy (RARP). The prophylactic procedure for IH after RARP involved the dissection of the peritoneum ∼5 cm outward from internal inguinal ring (IIR), separating the spermatic cord and vessels from the peritoneum. This was randomly performed on one side (left or right). A total of 148 cases were included, and IH after RARP was observed in 19 (12.8%) cases, with 11 (7.4%) cases in the right side only, 3 (2.0%) in the left side only, and 5 (3.4%) bilaterally. IHs developed in 9 (6.1%) sides that underwent prophylactic procedure and in 15 (10.1%) that did not. Kaplan-Meier curve analysis revealed no significant difference between the preventive and nonpreventive sides (p = 0.197). Based on the observation during laparoscopic hernioplasty, the prophylactic procedure that strengthened the abdominal wall was by adhesion conglutination of the exfoliated peritoneum in the effective side, and IIRs were opened and developed IH in the ineffective sides. Predictive factors for IH after RARP were not found using Cox proportional hazard model. The preventive procedure for IH used in this study reduced the incidence of IH after RARP, but the difference was not significant.
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