Study on application effect of F8 single-lumen catheter combined with nephroscope and holmium laser lithotripsy in the treatment of bladder stones
Objective To study the clinical effect of F8 single-lumen catheter combined with nephroscope and holmium laser lithotripsy in the treatment of bladder stones.Methods 60 patients with bladder stones(diameter≤3 cm and quantity≤5)were divided into a control group(group A,n=20)and an observation group(n=40)according to the random number table.The observation group was divided into group B(n=20)and group C(n=20)according to the random number table.Group A received nephroscope+holmium laser lithotripsy(holmium laser power set at 1.2-1.5 J/15-20 Hz),and group B received nephroscope+electrosurgical sheath+holmium laser lithotripsy(holmium laser power set at 1.2-1.5 J/15-20 Hz)and group C received nephroscopy+F8 single-lumen catheter+holmium laser lithotripsy(holmium laser power set at 1.0-1.2 J/20-25 Hz).Comparison was made on the intraoperative and postoperative conditions(success rate of one-time lithotripsy,lithotripsy time,stone removal time,urethral or bladder mucosal injury score and postoperative catheter indwelling time),and the occurrence of postoperative complications in the three groups.Results The success rate of one-time lithotripsy was 100%in all three groups,and there was no statistical significance in comparison(P>0.05).There were statistically significant differences in lithotripsy time,stone removal time,urethral or bladder mucosal injury score and postoperative catheter indwelling time among the three groups(P<0.05).The lithotripsy time of group B and group C were(18.32±5.32)and(17.84±6.52)min,which was shorter than(25.42±7.30)min of group A(P<0.05).There was no statistical significance in the comparison of lithotripsy time between group B and group C(P>0.05).Group B had stone removal time of(17.12±6.67)min and postoperative catheter indwelling time of(2.30±0.21)d,which were shorter than(24.38±8.10)min and(3.42±0.15)d in group A(P<0.05).Group C did not need stone removal and had a shorter postoperative catheter indwelling time than that of group A and group B(P<0.05).The urethral or bladder mucosal injury score of group C was(0.23±0.07)points,which was lower than(2.05±0.23)points of group A and(2.01±0.19)points of group B(P<0.05).Comparison of urethral or bladder mucosal injury scores between group A and group B was not statistically significant(P>0.05).The complication rate within 6 months after surgery was 0 in group C,which was lower than 20%in group B and 25%in group A(P<0.05).Comparison of incidence of complications within 6 months after surgery between group A and group B was not statistically significant(P>0.05).Conclusion F8 single-lumen catheter combined with nephroscopic laser lithotripsy for bladder stones has a high success rate of one-time lithotripsy,and does not require stone removal.The operation time is shorter,there are less side injuries,and the postoperative catheter indwelling time is short.The incidence of complications is low,the technology is safe and effective,and is worthy of widely used in clinical practice.
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