1. Conclusions Robot-assisted transperitoneal laparoscopic pyeloplasty is a more effective, more precise and minimally invasive surgical management for UPJ stricture.

2. ObjectiveTo evaluate the clinical efficiency of laparoscopically-assisted extracoporal pyeloplasty in the treatment of ureteropelvic junction obstruction (UPJO).

3. Set off from the same line-style open pyeloplasty in 42 cases of open surgery group.

4. Conclusions Close follow-up is essential for pyeloplasty, and the postoperative complications shall be treated early.

5. In the early period 1 patient underwent pyeloplasty and 1 patient undertook bilateral ureteric reimplantation.

6. For pelvioureteral junction obstruction, uncontinuous pyeloplasty was considered as the most suitable operation, its causes were congential.

7. Methods Retroperitoneoscopic dismembered pyeloplasty was performed on 17 patients of pediatric ureteropelvic junction(UPJ)obstruction, age ranging from 3—10 years.

8. Objective : To probe into nursing experience of pyeloplasty for ureteropelvic junction obstruction of congenital hydronephrosis.

9. To explore the new technique of ZEUS robot-assisted transperitoneal laparoscopic pyeloplasty for ureteropelvic junction(UPJ) stricture and to evaluate its clinical efficacy.

10. Results:On post operative check the renal pelvis obviously lessened in the 48 A H pyeloplasty cases, the renal function improved, and the peristalsis at the UPJ was fine on the screen.

11. Delayed complication included 1 case of UPJ obstruction requiring open pyeloplasty 8 months after surgery and open nephrectomy one year after surgery due to suspected recurrence of the disease.

12. Objective To compare two different surgical approaches for children undergoing pyeloplasty.

13. Objective:To evaluate the clinical effect and the surgical technique of laparoscopic dismembered pyeloplasty.

14. We described 20 cases of renal pelviureteric junction obstruction in our department from 1980 to 1990. Pyeloplasty was performed in all these patients.

15. Methods The clinical data of 13 patients with UPJ obstruction who underwent retroperitoneoscopic dismembered Anderson-Hynes type pyeloplasty were retrospectively analyzed.

16. Methods 12 cases of obstruction at ureteropelvic junction were treated with open surgery-continuous pyeloplasty and Anderson-Hynes pyeloplasty.

17. In surgical treatment, the double tongue-shaped flap type of pyeloplasty designed by us was specially undergone.

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18. Methods A clinical data of 9 cases nephrectomy after Anderson - Hynes pyeloplasty for UPJO were analyzed retrospectively.

19. Objective To explore the clinical effect of double J catheter internal drainage used in pediatric Anderson-Hyn es pyeloplasty .

20. Conclusion The dorsal lumbar incision is a safe and efficacious approach suitable for pyeloplasty, simple nephrectomy or renal biopsy.