The characteristics of crossing vessel assessed by retrograde renal pelvic dilatation during pyeloplasty in pediatric patients with ureteropelvic junction obstruction

Background: Ureteropelvic Junction Obstruction (UPJO) is the most common congenital ureteral anomaly. Nowadays, according to the increasing incidence of urolithiasis, 20% of children with UPJO presents urolithiasis. Open pyeloplasty was the standard treatment before the introduction of minimally invasive surgery (MIS). Nevertheless, only scattered experiences on MIS were previously described and universal agreement on the treatment of UPJO plus urolithiasis is still missing. Objective: The study aim was to describe our experience with a series of pediatric patients affected by UPJO and urolithiasis treated with robot-assisted pyeloplasty (RAP) and endoscopic removal of stones using a flexible cystoscope and a stones basket in a singular tertiary referral center. Material and methods: We retrospectively reviewed our data from pediatric patients affected by UPJO and urolithiasis undergoing RAP between April 2013 and December 2019. The analysis was conducted on seven patients. All procedures were performed by one expert robotic surgeon and one endoscopic surgeon skilled in the management of urolithiasis. Results: The mean age was 7 years (IQR 4–16). The median stone area was 77.7 mm two (IQR 50.2–148.4). Most of them (71.4%) presented preoperative symptoms. The median operative time was 110 min (IQR 104–125) with a console time of 90 (IQR 90–105). The median length of stay was 5 days (IQR 4–5). Median follow-up was 16 months (IQR 10–25). Conclusion: RAP with concomitant flexible ureteroscope is a safe and effective option for the simultaneous management of UPJO with urolithiasis with excellent outcomes in children.

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Use of double-J ureteric stents post-laparoscopic pyeloplasty to treat ureteropelvic junction obstruction in hydronephrosis for pediatric patients: a single-center experience

Journal of International Medical Research ◽

10.1177/0300060520918781 ◽

2020 ◽

Vol 48 (4) ◽

pp. 030006052091878

Author(s):

Haobo Zhu ◽

Jun Wang ◽

Yongji Deng ◽

Liqu Huang ◽

Xiaojiang Zhu ◽

...

Keyword(s):

Pediatric Patients ◽

Ureteropelvic Junction Obstruction ◽

Stent Migration ◽

Ureteropelvic Junction ◽

Laparoscopic Pyeloplasty ◽

Clinical Variables ◽

Single Center Experience ◽

Post Surgery ◽

Ureteric Stents ◽

Double J Stent

Objectives We aimed to investigate the safety concerns associated with placing double-J ureteric stents post-laparoscopic pyeloplasty surgery for congenital ureteropelvic junction obstruction (UPJO) and hydronephrosis. Methods A total of 1349 patients with postoperative double-J stent placement at our center were included. Clinical variables for enrolled patients were collected by two independent authors. We compared clinical variables and the efficacy of stenting post-laparoscopic pyeloplasty. Results The mean age of the patients was 4.23 ± 2.39 years. A total of 58.49% of patients were diagnosed with left UPJO with hydronephrosis and 33.95% were diagnosed with right UPJO. Furthermore, 7.56% of patients had bilateral UPJO. In all cases, 96.96% of indwelling double-J stents were successfully removed 4 weeks post-surgery. A total of 3.04% of the patients still required further management, including stent migration to the renal pelvis (0.37%), stent migration to the bladder (0.30%), prolapse of the stent through the ureter (0.15%), blockage of stents (1.85%), and fouling of stents (0.37%). Conclusions Double-J ureteric stents used after laparoscopic pyeloplasty for treating UPJO in hydronephrosis for pediatric patients is a safe, feasible, and beneficial method, which can be recommended for routine procedures. However, caution should be practiced for follow-up and removal using this method.

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