Ultrasonic and pneumatic lithotripsy under transurethral nephroscope for treatment of the complex bladder and urethral stones

Objective To evaluate the curative effects of complex bladder and urethral stones by mesns of ultrasonic and pneumatic Lithotripsy under transurethral nephroscope.Methods Clinical data of 98 cases with complex bladder and urethral stones underwent ultrasonic and pneumatic Lithotripsy under transurethral nephroscope were analyzed retrospectively from May 2007 to December 2010 in our hospital.In the 98 cases,urethral stones occurred in 22 cases,which size was(0.7×0.8)～(1.2×1.9)cm.Among which,prostatic urethral stones occurred in 16 cases,anterior urethralstones occurred in 6 cases.Others were bladder stones,which average diameter was(2.5±1.3) cm.Among these cases,single stones occurred in 21 cases,two stones occurred in 15 cases,multiple stones occurred in 40 cases(the number of stones may up to more than 10).Results All the cases had no complications,and the stones were cleared off at one section,the stone-free rate was 100%,the mean operative time was(46.6±18.6)min.The mean postoperative hospitalization time was(3.2±1.5)d.Conclusion Ultrasonic and pneumatic Lithotripsy under transurethral nephroscope has the advantages of safety,high efficiency and minimal invasionin,and it is an important choice for treatment of complex bladder and urethral stones.