Abstract: Abstract：Objective To analyze the clinical application value of double J tube in the protection of renal function and the relief of urinary tract obstruction in patients with postoperative treatment after cervical cancer surgery. Methods There were 81 patients with cervical cancer (stage ⅠA & ⅠB & ⅡA) selected in our hospital from June 2013 to June 2016 who were treated with postoperative radiotherapy. Patients were divided into observation group (indwelling double J tube group, n=39) and control group (conventional treatment group, n=42). After the treatment, data of hydronephrosis, creatinine and urea nitrogen were compared between the two groups. Data of complications associated with indwelling ureteral stent including fever, infection, low back pain, percussion pain in renal region and radiation cystitis were recorded. Results The total incidence rate of hydronephrosis (10.3% vs. 33.3%) and the incidence of mild renal hydrocephalus (5.1% vs. 21.4%) were less in observation group than those in the control group (P＜0.05). There were no significant differences in incidence rates of hydronephrosis and mild renal hydrocephalus between the two groups. The levels of creatinine ［(116.9±43.0) μmol/L vs. (170.8±68.4) μmol/L］ and urea nitrogen ［(5.4±1.9) mmol/L vs. (7.7±2.5) mmol/L］ were lower in the observation group than those in the control group (P＜0.05). Except for the urea nitrogen of the observation group, there were significant differences in creatinine and urea nitrogen before and after treatment between two groups (P＜0.05). During the indwelling of the double J tube, there were no significant differences in the incidences of fever, infection, lumbago, renal percussion pain and radiation cystitis between observation group and control group (P＞0.05). Conclusion It is effective, safe and feasible to prevent ureteral obstruction and protect renal function by indwelling double J tube in patients with postoperative treatment after cervical cancer surgery.

Key words: Key words: uterine cervical neoplasms, radio therapy, ureteral stent, hydronephrosis, renal insufficiency