To investigate the effect of combined ureteroscopy lithotripsy with vigorous lithotripsy outer sheath in treating bladder stones larger than 3 cm.

A retrospective analysis of a total of 108 patients with bladder stones from January 2013 to December 2019 were divided into the experimental group (powerful lithotripsy outer sheath and ureteroscopy group) and the control group (open bladder incision and stone removal group), 54 cases in each group. Differences in parameters such as the success rate of single stone removal, operation time, bleeding volume, length of hospital stay, urinary drainage time, and perioperative complications were compared and analyzed between the two groups.

The success rate of one-time stone extraction in the experimental group was 100%. The operation time, intraoperative blood loss, length of hospital stay, and urinary drainage time were significantly shorter than those in the control group, which was statistically significant (P<0.05). The success rate of one-time stone extraction in the control group was also 100%, but the length of hospital stay, urinary drainage time, and complications were significantly higher than those in the experimental group. Three of 54 patients had significantly longer hospital stay due to incision infection, and 1 of them who had postoperative complications with pulmonary embolism had significantly longer hospital stay.

Vigorous lithotripsy outer sheath combined with ureteroscopy pneumatic ballistic or holmium laser lithotripsy is safe and effective for bladder stones > 3 cm in diameter, especially suitable for patients with multiple bladder stones, elderly and high-risk basic diseases, and patients who are not suitable for open or other lithotripsy , it is worthy of clinical application.

Urinary Bladder Calculi; Ureteroscopy; Lithotripsy; Lithotriptor