الفهرس 
)Anatomy of the upper third ureter
Ultrasound (Abdomino-pelvic U/S):Only 14 pages are availabe for public view
 |  | from | 32 |  |  |
| | | from | 32 | | |
Abstract
This study included 30 patients suffering from impacted proximal ureteral stones (17 males and 13 females) with age ranging from 21 to
62 years and stone size up to 2 cm. Patients were randomized into two equal groups: group (1) non stented group and group (2) stented group.
- All patients were treated by ESWL using the electromagnetic Dornier U/30 lithotripter. Stone localization was done by C-arm fluoroscopy
- Age,sex and the side of the stone had no impact on our results.
- Of the total number of patients; nine patient of non stented group
(60%) received only one session for complete stone fragmentation in comparison to 4 patients (26.6%) in the stented group. The retreatment rate required for complete stone fragmentation was (53.3%) in stented group while in non stented group it was (40%)which was lower than that in the stented group. The mean number of sessions in both groups was 1.8 ± 0.8 (range 1 to 3). It was 1.53 ± 0.74 in the nonstented group and 2 ± 0.8 in the stented group (range 1 to 3). This was statistically
significantly different (p = 0.034
- Stones less than 1 cm in size showed very good response to ESWL
stone free rate 92.85%) with excellent stone clearance on follow up radiographs. Stones 1 cm or more in size showed also good response to
ESWL (stone free rate 75%) with excellent fragmentation on follow up
radiographs. However, as the stone size increases, stone free rate decreases, residual fragments increase, and the number of sessions and hence the re-treatment rate increases, as well as the number of shock waves