Diagnosis and treatment of ureteral calculi during pregnancy with rigid ureteroscopes
Abstract
There is still excessive debate as to the preferred diagnostic and therapeutic approach to urolithiasis in pregnancy. We report our experience with 15 pregnant patients with renoureteral colic marked by pain not responsive to analgesia, dilatation and fever. We focused on the usefulness of ureteroscopy with thin instruments and ultrasound in the diagnosis and treatment of ureteral stone and ureteral colic during pregnancy. Between 1990 and 1993 we performed ureteroscopy and ureterolithotripsy on 15 pregnant patients 16 to 30 years old. Gestation time ranged from 20 to 34 weeks. All patients underwent ureteroscopy with thin rigid 7.0F or 9.5F ureteroscopes without dilation of the ureteral meatus. The use of ionizing radiation was avoided before, during and after the procedures. A stone was extracted from the lower third of the ureter in 2 cases, displaced into the kidney from the middle third of the ureter in 3, and fragmented with the pulsed dye laser in 3, the holmium:YAG laser in 3 and the ballistic lithotriptor in 2. Finally absence of ureteral calculi was confirmed in 2 cases. A double pigtail ureteral catheter was placed via echographic guidance in 14 cases to monitor curling of the pigtail in the renal pelvis, while in 1 ...Continue Reading
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