Pediatric Standard and Robot-Assisted Laparoscopic Pyeloplasty: A Comparative Single Institution Study

Division of Pediatric Urology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.
The Journal of urology (Impact Factor: 4.47). 11/2012; 189(1). DOI: 10.1016/j.juro.2012.09.008
Source: PubMed


We report our experience and compare the outcomes between standard and robot-assisted laparoscopic pyeloplasty to treat ureteropelvic junction obstruction in children.

Materials and methods:
A retrospective cohort study was performed of all children who underwent standard or robot-assisted laparoscopic pyeloplasty for ureteropelvic junction obstruction at a single institution from October 2007 to January 2012. Indications for surgery included symptomatic obstruction and abnormal diuretic renal scan. A successful outcome was defined as resolution of clinical symptoms, improvement of hydronephrosis on ultrasound, stable ultrasound with resolution of symptoms or improvement of the drainage curve on diuretic renal scan.

We reviewed 18 patients (median age 8.1 years) who underwent standard and 46 (8.8 years) who underwent robot-assisted laparoscopic pyeloplasty (p = 0.194). Median operative time was 298 minutes (range 145 to 387) for standard and 209 minutes (106 to 540) for robot-assisted laparoscopic pyeloplasty (p = 0.008). Mean hospitalization was similar between the groups (1 day for standard vs 2 days for robot-assisted laparoscopic pyeloplasty, p = 0.246). Narcotic use was similar between the groups. Median followup was 43 months for standard and 22 months for robot-assisted laparoscopic pyeloplasty (p <0.01). Renal ultrasound showed postoperative improvement of hydronephrosis in 85% and stable disease in 15% of patients following robot-assisted laparoscopic pyeloplasty, and improvement in 89.5% and stable disease in 10.5% after standard laparoscopic pyeloplasty. Symptoms resolved in 100% of patients (38 of 38) after robot-assisted laparoscopic pyeloplasty and 87.5% of patients (7 of 8) after standard laparoscopic pyeloplasty.

Robot-assisted laparoscopic pyeloplasty and standard laparoscopic pyeloplasty are effective techniques to correct ureteropelvic junction obstruction, with similar outcomes. Robot-assisted laparoscopic pyeloplasty had a shorter operative time, and its success and complication rates are comparable to standard laparoscopic pyeloplasty.

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Available from: Edward Riachy, Jun 05, 2014

  • No preview · Article · Oct 2012 · The Journal of urology
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    ABSTRACT: To present our experience of combining transperitoneal mini-laparoscopic pyeloplasty (mini-LP) and concomitant ureteroscopy-assisted pyelolithotomy (U-P) for ureteropelvic junction obstruction (UPJO) complicated by renal caliceal stones in the same session. Between May 2007 and December 2011, mini-LP and concomitant U-P was performed in nine patients with UPJO and ipsilateral renal caliceal stones. Stone location and burden were preoperatively assessed. After pyelotomy with appropriate length (about 4 mm), a 16-Fr catheter sheath replaced the uppermost or lowermost laparoscopic trocar and was introduced directly into the renal pelvis under the guidance of a guide wire and laparoscopic vision. A 7.5F rigid ureteroscopy passed through the catheter sheath into the plevis. Intracorporeal lithotripsy and/or pressure irrigation via a pump was used for caliceal stone removal. Subsequently, laparoscopic pyeloplasty was performed in a standard fashion. Postoperative imaging was assessed. The calculi sizes ranged from 2 to 11 mm (mean, 7.1 mm) and an average of 3 stones per patient was removed (range, 1 to 6 stones). Complete stone clearance confirmed by postoperative imaging was achieved in all patients. Mean operative time was 210 minutes, and estimated blood loss was 20 mL. Mean hospital stay was 5 days (4-7). Stent was removed after 4-8 weeks. No intraoperative or postoperative complications were noted during a mean follow-up of 18.5 months (range, 6 to 24 months). Mini-LP and concomitant U-P are simple and effective alternatives for the simultaneous management of UPJO complicated by coexisting ipsilateral renal caliceal stones.
    Preview · Article · Jan 2013 · PLoS ONE
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    ABSTRACT: To analyze our initial experience with the practice of robotic pyeloplasty and describe its advantages over laparoscopic and open surgery. Retrospective study of the pediatric cases of pyeloplasty assisted by the robot da Vinci between March 2010 and May 2013. In all cases a transperitoneal approach was used with placement of 4 trocars (3 robotic trocars and 1 conventional laparoscopic). The technique used was the dismembered pyeloplasty Anderson-Hynes type. We operated 15 patients (12 men and 3 women) with a median age at surgery of 11 years (r: 5-18). The median weight was 40 kilos (r: 19-82). Five patients had a previous open pyeloplasty performed several years ago. All patients except but one were completed by robot. The only conversion to open surgery was performed because of difficulty in placing the double-J catheter due to a stenosis at the ureterovesical junction. They were no other intraoperative complications. The median operative time was 180 minutes (r: 110-252) and the median time for the robot docking 14 minutes (r: 4-50). The average hospital stay was 3.47 days (SD: 3). Mean follow-up was 16.97 months (SD: 10.24) and currently all patients are asymptomatic. Our initial experience seems to demonstrate that, coinciding with the literature, robotic pyeloplasty improves the results of laparoscopic pyeloplasty, retaining all its advantages and radically shortening the learning curve.
    Full-text · Article · Jul 2013 · Cirugía pediátrica: organo oficial de la Sociedad Española de Cirugía Pediátrica
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