| Background and objective:In the past,many clinical studies have analyzed the complications of different ureteral stents and compared the stone clearance rate.For most of the stones that can be powdered,the human body depends on the scouring of urine and the peristalsis of ureter,and the influence of ureteral stent tube on them is not very different,but for the high-density stones that cannot be powdered,only relying on the human body itself can not be completely discharged by itself,and there is no clear clinical research on this.Therefore,this study compares and analyzes the rate of postoperative residual stone excretion,safety,effectiveness and complications between the new triangular ureteral stone excretion tube and the conventional ureteral stent in the treatment of patients with high-density stones who cannot be powdered by ureteroscopic lithotripsy,Patient comfort,so as to further explore the advantages and disadvantages of two different treatment methods of ureteral stent,so as to provide reference for the selection of ureteral stent in the treatment of high-density stones by transurethral ureteroscopy.Method:From March 2019 to September 2021,68 patients with high-density stones who met the inclusion criteria were selected and analyzed.All patients had undergone urinary color Doppler ultrasound and angiography,urinary CT,chest CT,cardiac color and other relevant examinations,hematuria routine,liver and kidney function and other relevant examinations before operation.They were diagnosed with unilateral urinary calculi,and excluded the existence of tumors,polyps,cysts,tuberculosis and other diseases,as well as other organ malignant tumors and major and serious diseases,There was no absolute contraindication.They were divided into stone row stent group and ordinary ureteral stent group.Stone row stent and ordinary ureteral stent were used for disease treatment respectively.There were 32 cases in the stone removal stent group and 36 cases in the ordinary ureteral stent group.The data were collected from the two groups and analyzed by SPSS（statistical product and service solutions）26.0.The measurement data of Shapiro Wilk test is used to judge whether it conforms to the normal distribution.If yes,it shall be expressed by mean ± standard deviation（± s）,and then t-test shall be used for inter group comparison;Count data were expressed in n（%）,and chi square was used for comparison between groups（χ~2）Test or Fisher exact test.P<0.05 showed that there was significant difference.Statistical analysis was carried out in the same statistical way to compare the effectiveness and safety of the two clinical treatment methods.Result:There was no significant difference in general data between the two groups（P>0.05）.There was no significant difference in the operation success rate,operation time,postoperative hospitalization days,and postoperative blood and urine routine between the ordinary ureteral stent and the new stone expulsion stent group（P>0.05）.Postoperative quality of life score（QOL）,results of the ureteral stent-related symptom questionnaire（USSQ）:in the two groups in terms of lower urinary tract symptoms,in terms of impact on overall health,complications after stent placement,hematuria,pain,and The incidence of difficulty in removal was similar,and there was no significant difference（P>0.05）;the incidence of infection,stent displacement,stent tube fracture,wall-attached stones,formation of stone streets and crusts in the new stone expulsion stent group was lower than that of the traditional stone removal stent group.In the ureteral stent group（P<0.05）,the difference between the two groups was statistically significant.There were significant differences in postoperative stone clearance rate and postoperative complication rate（P<0.05）.Conclusion:The new-type ureteral stent group has higher ureteral residual stone removal rate and lower complication rate at 1 month after operation.Quality of life has good clinical significance. |
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