Ureteroscopy for the treatment of stubborn renal colic during pregnancy

Objective To evaluate the effecacy and safety of ureteroscope and pneumatic lithotripsy for the treatment of renal colic in pregnant women.Methods 34 pregnant women(gestitation 12~32 weeks;mean 24 weeks)with renal colic who failed to respond to conservative treatment were treated with ureteroscopy.30 cases with calculi received pneumatic lithotripsy,12 of which had calculi in upper ureter and 18 in middle or lower ureter.Double-J catheter was indwelt for drainage.4 cases without stones were treated with double-J catheter drainage.Results All urgent symptoms in the 34 cases were relieved after treatment.No complications such as ureterperforation occurred.Stone clearance rate was 83.3%(25/30).All cases had normal delivery.Conclusion Ureteroscopy is safe and effective to renal colic during pregnancy.