Abstract: Objective To investigate the clinical effect of flexible ureteroscopy and microchannel percutaneous nephrolithotripsy in the treatment of upper ureteral calculi.
Methods A total of 86 cases of upper ureteral calculi admitted to our hospital from June 2017 to March 2020 were grouped by digital odd-even method.The ureteroscope group(43 cases):the ureteroscope was selected to complete the treatment of upper ureteral calculi.In the percutaneous nephrolithotomy group(43 cases):microchannel percutaneous nephrolithotripsy was selected to complete the treatment of upper ureteral calculi.Postoperative hospital stay,intraoperative blood loss,comfort score and VAS score were compared between groups.
Results The postoperative hospitalization days(2.73±0.55) d and intraoperative blood loss(4.13±1.29) ml of patients with upper ureteral calculi in the flexible ureteroscope group were shorter than those in the percutaneous nephrolithotomy group(5.19±0.79) d and(13.65±2.22) ml,respectively(P<0.05).The comfort score(3.76±0.53) and the VAS score(0.92±0.63) of the patients with upper ureteral calculi in the flexible ureteroscope group were significantly higher than and lower than that in the percutaneous nephrolithotomy group(2.82±0.51) and(2.07±0.96),respectively(P<0.05).There was no statistical significance between the two groups.In the flexible ureteroscope group,there was Icase of postoperative fever,which was improved after anti-infection treatment,and there was no transfer operation,In the microchannel percutaneous nephroscopy group,there was no bleeding requiring intervention or serious infection complications.
Conclusion The long-term stone clearing rates of the two groups were similarThe effective application of ureteroscope can significantly shorten the postoperative hospital stay of patients with upper ureteral calculi,effectively reduce intraoperative blood loss,improve comfort and reduce pain.

Key words: flexible ureteroscope, microchannel percutaneous nephrolithotripsy, upper ureteral calculi