Electrohydraulic lithotripsy of bladder stones. A Hong Kong experience.

Forty transurethral electrohydraulic lithotripsy procedures for bladder stones have been done. The rigid cystoscope was adequate in most cases but the rigid nephroscope was advantageous in large stones because of its larger bore and range of accessories. Use of the flexible cystoscope for stone extraction was difficult but it could be used with a few friable stones of less than 1 cm or for follow-up.