Paul H Noh1, W Robert Defoor, Pramod P Reddy. 1. Division of Pediatric Urology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio 45229-3039, USA. paul.noh@cchmc.org
Abstract
BACKGROUND AND PURPOSE: Robot-assisted laparoscopic pyeloplasty has become more widely used. Intraoperative placement and confirmation of ureteral stent position can be cumbersome with the robotic arms in place. We present a technique of percutaneous antegrade stent placement that is reliable with minimal morbidity. PATIENTS AND METHODS: A retrospective cohort study was performed. Patient demographics, radiographic imaging, intraoperative details, and surgical outcomes were abstracted from the medical record. A 14-gauge angiocatheter was placed through the abdominal wall. A ureteral stent was guided over a wire down the dismembered ureter. Stent position was confirmed by retrograde reflux of methylene blue. A urethral catheter was left in place for 12 to 36 hours. RESULTS: Twenty-nine patients (15 male, 14 female) were identified. Average age was 10 years. Average follow-up was 14 months. Fifteen left- and 14 right-sided procedures were performed. Two patients needed retrograde stent placement. Mean time to correctly position the stent was less than 5 minutes. Postoperatively, one patient had a urine leak managed by an indwelling urethral catheter and did not need percutaneous drainage. All stents were removed approximately 4 to 6 weeks postoperatively. One patient had retrograde migration of the stent managed by ureteroscopy at the time of stent retrieval. CONCLUSIONS: Antegrade ureteral stent placement through a percutaneous angiocatheter, during robot-assisted laparoscopic pyeloplasty, is a rapid and effective technique. Intraoperative confirmation of stent position can be obtained, using methylene blue bladder distention, without repositioning the patient or undocking the surgical robot.
BACKGROUND AND PURPOSE: Robot-assisted laparoscopic pyeloplasty has become more widely used. Intraoperative placement and confirmation of ureteral stent position can be cumbersome with the robotic arms in place. We present a technique of percutaneous antegrade stent placement that is reliable with minimal morbidity. PATIENTS AND METHODS: A retrospective cohort study was performed. Patient demographics, radiographic imaging, intraoperative details, and surgical outcomes were abstracted from the medical record. A 14-gauge angiocatheter was placed through the abdominal wall. A ureteral stent was guided over a wire down the dismembered ureter. Stent position was confirmed by retrograde reflux of methylene blue. A urethral catheter was left in place for 12 to 36 hours. RESULTS: Twenty-nine patients (15 male, 14 female) were identified. Average age was 10 years. Average follow-up was 14 months. Fifteen left- and 14 right-sided procedures were performed. Two patients needed retrograde stent placement. Mean time to correctly position the stent was less than 5 minutes. Postoperatively, one patient had a urine leak managed by an indwelling urethral catheter and did not need percutaneous drainage. All stents were removed approximately 4 to 6 weeks postoperatively. One patient had retrograde migration of the stent managed by ureteroscopy at the time of stent retrieval. CONCLUSIONS: Antegrade ureteral stent placement through a percutaneous angiocatheter, during robot-assisted laparoscopic pyeloplasty, is a rapid and effective technique. Intraoperative confirmation of stent position can be obtained, using methylene blue bladder distention, without repositioning the patient or undocking the surgical robot.
Authors: Yaejee H Hong; W Robert DeFoor; Pramod P Reddy; Marion Schulte; Eugene A Minevich; Brian A VanderBrink; Paul H Noh Journal: J Robot Surg Date: 2017-03-14
Authors: D I Chu; D Shrivastava; J P Van Batavia; D K Bowen; C C Tong; C J Long; D A Weiss; A R Shukla; A K Srinivasan Journal: J Pediatr Urol Date: 2018-05-07 Impact factor: 1.830