Presented by: Jennifer L Nguyen BS
Department of Urology, Hackensack University Medical Center

Introduction

We present the largest multi-institutional Single-Port (SP) robot-assisted pyeloplasty series using the Single Port Advanced Research Consortium (SPARC) database to evaluate the efficacy and reproducibility of this procedure amongst different institutions.

Materials

We utilized a  multi-center retrospective and prospective genitourinary reconstructive database, to select patients who underwent single-port pyeloplasty between 2020 and 2022. Data was obtained from three institutions. Continuous data were analyzed using the Kruskal-Wallis. Categorical data were analyzed using Chi-Squared.

Results

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81 patients were evaluated.  Demographic variables such as age, sex, BMI, location, and laterality did not differ significantly between the three institutions (Table 1 ). 

Perioperative and follow-up outcomes are summarized in Table 2. There was no statistically significant difference between the institutions in terms of estimated blood loss (EBL), intraoperative and postoperative complication rates, length of hospital stay, follow-up, and documented success rates. Of note, institution 1 performed more pyeloplasty procedures on congenital obstructions than the other two institutions (p <0.001). Additionally, institution 1 had significantly lower operative time than the others (p <0.001).

Conclusion

SP pyeloplasty may be performed safely and is reproducible at multiple institutions with no differences in outcomes except for slightly decreased operative times at one institution. The short operating times at institution 1 may be related to the fact that more procedures were performed for congenital abnormalities vs. impacted stones and inflammation.

Funding

No funding was received for this article

Co-Authors

Teona Iarajuli, MD
Hackensack Meridian School of Medicine

Ethan Ferguson, MD
Urology Department, Cleveland Clinic

Roxana Ramos,
Urology Department, Cleveland Clinic

Jaya Chavali,
Urology Department, Cleveland Clinic

Graham Hale,
Department of Urology, University of Illinois at Chicago

Cairo Stanislaus,
Hackensack Meridian School of Medicine

Sreya Das,
Hackensack Meridian School of Medicine

Catherine Implicito,
Hackensack Meridian School of Medicine

Katherine Kim,
Hackensack Meridian School of Medicine

Kyle Featherston,
Hackensack Meridian School of Medicine

Mutahar Ahmed, MD
Department of Urology, Hackensack University Medical Center

Simone Crivellaro, MD
Department of Urology, University of Illinois at Chicago.

Jihad Kaouk, MD
Urology Department, Cleveland Clinic

Michael Stifelman, MD
Department of Urology, Hackensack University Medical Center