Objectives: The feasibility and efficacy of laparoscopic-assisted D2 gastrectomy (LAD2G) for advanced gastric cancer (AGC) remain controversial. We conducted a prospective cohort study to provide a comprehensive comparison of LAD2G and open D2 gastrectomy (OD2G) for AGC. Materials and Methods: Between April 2016 and December 2017, patients with clinical stage T2-4aN0-3M0 gastric cancer were enrolled and assigned to either LAD2G or OD2G group. The primary endpoint was short-term surgical and chemotherapy outcomes. The postoperative pain and perioperative anxiety were compared as the secondary endpoint to indicate perioperative life quality. Results: A total of 110 patients in LAD2G group and 238 patients in OD2G group were included. The 2 groups showed similar number of retrieved lymph nodes (29.85±6.52 vs. 30.60±5.37, P=0.069) and postoperative morbidity (21.01% vs. 21.82%, P=0.888). A total of 84.4% of patients in LAD2G group and 75.6% in OD2G group received adjuvant chemotherapy (AC) (P=0.069). The mean time interval to AC was shorter in LAD2G group (34±13.74 vs. 40.78±18.78 d, P<0.001). Furthermore, LAD2G was superior to OD2G in terms of earlier postoperative recovery, faster relief of postoperative pain, and lower postoperative anxiety. Conclusions: LAD2G is feasible for AGC in experienced centers. Patients after LAD2G tended to have earlier initiate of AC. LAD2G could provide more rapid postoperative recovery and relief of postoperative pain, along with lower postoperative anxiety.

BACKGROUND The standard treatment of transitional cell carcinoma of the upper urinary tract consists of radical nephroureterectomy with bladder cuff removal, which can be performed either in open or laparoscopy or robot-assisted laparoscopy. Treatment of chronic renal insufficiency patients with upper urothelial tumor is in a dilemma. Urologists weigh and consider the balance between tumor control and effective renal function preservation. European Association of Urology guidelines recommend that select patients may benefit from endoscopic treatment, but laparoscopic treatment is rarely reported. CASE SUMMARY In this case report, we describe a case of 79-year-old female diagnosed with urothelial carcinoma of the renal pelvis and adrenal adenoma with chronic renal insufficiency. The patient was treated with retroperitoneal laparoscopic partial resection of the renal pelvis and adrenal adenoma resection simultaneously. CONCLUSION Retroperitoneal laparoscopic partial resection of the renal pelvis is an effective surgical procedure for the treatment of urothelial carcinoma of the renal pelvis.