Treatment of upper ureteral stones with spiral stone dislodger combined with pneumatic lithotriptor under ureteroscopy / 中国基层医药

Objective To evaluate the effectiveness of spiral stone dislodger combined with pneumatic lithotriptor under ureteroscopy for managing upper ureteral stones. Methods 106 patients with upper ureteral stones with spiral stone dislodger combined with pneumatic lithotriptor under ureteroscopy were treated. The transverse diameter of the stones was 4～12mm and the vertical length 6～15mm. Results 87.7% (93/106) stones were fragmented for one session of treatment. 8 cases were pushed upward then undergoing extracorporeal shock wave lithotripsy(ESWL) after surgical operations. Operations in 5 cases had to be changed to open surgery,and ureteral perforations happened in 1 case. Conclusion Successful entrance of the uretersocop is a prerequisite for crushing the stone,appropriate fixation of the stone is the key to their crushing,spiral stone dislodger is an effective means of fixing ureteral stones.

A Comparative Observation on Success Rates of Stone Dislodgers / 대한비뇨기과학회지

A comparative observation was done on 139 patients of the lower ureteral stone, those were applied cystoscopic manipulation with 3 different types of stone dislodger at the Department of Urology, Seoul Adventist Hospital, during the periods from Jan. 1982 to June 1985. During that periods, we applied end-loop catheter in 48 patients, blunt-tip Dormia basket in 38 patients. The results were as follows; 1. The success rate of passage of dislodger beyond the stone was the highest in filiform-tip Dormia basket (97.4%) and loop catheter was the lowest (8l.3%). 2. The success rate of the primary stone extraction with filiform-tip Dormia basket was the highest (86.8%). 3. Indwelling of the dislodger in the ureter loop catheter was the most successful method among them(62.5%). 4. Of the cases of passage beyond the stone, the success rates of the stone extraction were very high and similar in their results, as in 92.3% with loop catheter, in 90.9% with blunt-tip Dormia basket, in 91.9% with filiform-tip Dormia basket. 5. The overall success rate of stone extraction was 75.0% in loop catheter, 75.5% in blunt-tip Dormia basket 89.5% in filiform-tip Dormia basket.

A Clinical Observation on Cystoscopic Manipulation of Distal Ureteral Stones with Dormia Stone Dislodger / 대한비뇨기과학회지

The cystoscopic manipulation was done in 52 cases of ureteral stones who visited the Department of Urology, Soon-Chun-Hyang College Hospital during the period of 18 months from May. 1979 to August. 1980 using Dormia stone disloger and the following results were obtained. 1. With the Dormia stone dislodger, 27 cases of ureteral stone were removed successfully. 2. The ureteral stone passed in 8 cases within 72 hours after manipulation. 3. Of the 27 cases, 2 cases were middle ureteral stone and 25 cases were lower ureteral stone. 4. The largest stone measured 6.5 x 13 mm. 5. There were no major complication but minor complication occurred such as fever, pain and gross hematuria.

Clinical Observation on Cystoscopic Removal of Lower Third Ureteral Stone Using Woven Loop Stone Dislodger / 대한비뇨기과학회지

The cystoscopic manipulation was applied in 38 cases of lower one third ureteral stone who visited the Department of Urology National Police Hospital during the period from January 1979 to August 1981. 1. The age distribution was between 17 and 57 years, showing the highest incidence in 21 to 30 years (36.8%). 2. In 38 cases of stones in the lower one third of ureter in which the woven loop stone dislodger was used, the stone was removed successfully in 29 cases, a success rate of 76.3%. 3. Among 29 cases, 20 ureteral stones were extracted immediately and 9 ureteral stones were delivered spontaneously after cystoscopic manipulation. 4. In 7 cases (18.4%) ureterolithotomy was necessary. 5. The commonest size of stone extracted by woven loop stone dislodger was from 5 mm to 7 mm in size. 6. No specific complication were found during or after cystoscopic manipulations.

Antegrade Use of Stone Dislodger / 대한비뇨기과학회지

The antegrade manipulation with stone dislodger was applied in 7 cases of unilateral multiple ureteral calculi or ureteral calculi accompanied with ipsilateral renal calculi who were admitted to the Department of Urology, Korea University Hospital during the period of 3 years and 7 months from August 1975 to March 1979. After surgical operation including pyelolithotomy, partial nephrectomy or ureterolithotomy for removal of proximal calculi, stone dislodger was passed downward to the distal calculi through the opening made in the kidney pelvis or ureter. When loop catheter is used a sufficient length of catheter is passed to ensure placement of the loop segment is in the bladder. When the stone is snared, a slow and gentle withdrawal motion will facilitate extraction. Compared with the cystoscopic manipulation, the antegrade use of stone dislodger had advantages and high success rate. Results and advantages are described below. 1. In six cases among seven, distal stone was extracted successfully with this procedure. 2. Among the six successful cases, one was upper ureteral stone and five were lower ureteral stones. 3. Each case had one distally located stone in the ureter and the largest one among them was 0.7 X 0.9cm in size. 4. No specific complications were noted during or after procedure in all six cases 5. Advantages of the antegrade manipulation were as followings. 1) Calculi which was snared, could be extracted without difficulty or ureteral trauma because the ureter proximal to the calculi was usually dilated. 2) Appropriate control of traction power and easy manipulation could be performed. 3) When loop catheter was used it was safe because the loop was formed in wide space of the urinary bladder. 4) There was no urethral injury. 5) Another surgical procedure or retrograde cystoscopic manipulation for removal of distal calculi was not necessary.

Clinical Observation on Cystoscopic Removal of Ureteral Stone using Woven Loop Stone Dislodger / 대한비뇨기과학회지

The cystoscopic manipulation was applied in 89 cases of ureteral Stone who visited the Department of Urology, Woo Sok University medical College Hospital during the period of 1 year 8 months From Jan, 1st 1970 to Aug. 31st, 1971, using woven loop stone dislodger and following results were obtained. 1) In 66 cases, ureteral stone was extracted successfully. 2) Among the 66 successful cases, 50 ureteral stones were extracted immediately and in 16 cases, stone was delivered spontaneously after cystoscopic manipulation, among them, 14 cases Within 5 days, 1 case after 26 days and 1 case after 2 months. 3) 2 successful cases were upper ureteral stone and 4 were middle ureteral stone and all of this 6 ureteral stone were extracted immediately. 4) The largest stone extracted was 11 mm X 14 mm in size. 5) No specific complications were found during or after cystoscopic manipulation.