To explore the clinical value of transperitoneal laparoscopic pyeloplasty with double-line suspension.

Twenty-two pediatric patients with ureteropelvic junction obstruction (UPJO) underwent transperitoneal laparoscopic pyeloplasty with double-line suspension from September 2016 to November 2018 in the First People’s Hospital of Lianyungang. Among them, 19 males and 3 females aged from 4 months to 14 years with average of (5.3±2.7) years. Twenty patients had obstruction on the left ureteropelvic junction and one on the right, and one bilateral, twenty-three laterals in total. The right side UPJO were exposured via open the side peritoneum of colon. The left side UPJO were exposured via open mesentery. During the operation, two line were sutured to the ends of the ureter and renal pelvis hunging to the abdominal wall to make anastomotic suturing more easily. The renal pelvis and ureter were anastomosed using 5-0 absorbable sutures anda double-J ureteric stent was placed through the anastomotic stoma. Patients were followed-up by ultrasound.

All operations were successful. None was converted to open surgery. The operative time was 90-260 min, The mean operative time was (137±55) min. The blood loss was 5-20 ml. The median duration of hospitalization was 7 days. One case had a fever due to reflux, the symptom disappeared after removal of the double J stent one month later. One case appeared urinary ofextravasation, which naturally disappeared after three days drainage. With 6 to 25 months of follow-up, the clinical symptomsdisappeared and the hydronephrosis gradually improved.

Transperitoneal laparoscopic pyeloplasty with double-line suspension is not only safe and effective but also a easy-to-learn surgical method.