Comparison of effectiveness and safety of Da Vinci robot’s “3 + 1” and “4 + 1” modes of treatment for colorectal cancer

Abstract

ObjectiveTo compare the effectiveness of the Da Vinci Surgical Robot System (DSRS) "3 + 1" and "4 + 1" models for colorectal cancer (CRC). MethodsA total of 107 patients with CRC admitted to our hospital from February 2021 to May 2022 were selected for the retrospective analysis. Of these, 57 patients underwent the DSRS "4 + 1" model (control group), while the rest 50 underwent the DSRS "3 + 1" model (research group). The operation time, intraoperative bleeding, number of lymph nodes detected, time of rst postoperative urinary catheter removal, time of rst feeding, time of rst venting and hospitalization were compared between the two groups. The changes of white blood cell (WBC) and C-reactive protein (CRP) levels before and after surgery were detected, and patients' adverse effects and treatment costs between surgery and hospital discharge were counted. The Self-Rating Anxiety Scale (SAS) and the Self-Rating Depression Scale (SDS) were used to assess the psychological state of the patients. ResultsThere was no difference in operative time, intraoperative bleeding, and number of lymph nodes detected between both groups (P > 0.05), while time to rst postoperative urinary catheter removal, time to rst feeding, time to rst venting, length of stay (LOS), postoperative in ammatory factor levels, incidence of adverse events, and treatment costs were all lower in the research group than in the control group (P < 0.05). SAS and SDS scores decreased after treatment in both groups, but the decrease was more obvious in the research group (P < 0.05). ConclusionBoth DSRS "4 + 1" and "3 + 1" modes have better treatment effects for CRC. But the "3 + 1" mode has higher safety and lower treatment cost, which can signi cantly improve the postoperative recovery process of patients and is more worthy to be promoted in clinical practice.