Multicenter evaluation of guideline adherence for pelvic lymph node dissection in patients undergoing open retropubic vs. laparoscopic or robot assisted radical prostatectomy according to the recent German S3 guideline on prostate cancer

Pelvic lymph node dissection (PLND) is recommended for patients with prostate cancer (PCa) and significant risk for nodal metastases. This study aimed to assess guideline adherence regarding PLND according to the German S3 guideline as example for a national but highly used guideline on prostate cancer and to compare the rate of complications different approaches for radical prostatectomy (RP).

Patients undergoing open (RRP), laparoscopic (LARP) or robot-assisted (RARP) RP in six centers in Germany and Austria were included. The primary endpoint was the total number of removed lymph nodes (LN) between the different surgical approaches according to recent guideline recommendations. Secondary endpoints were the number of patients undergoing a sufficient PLND, defined as a removal of at least 10 LN and associated complication rates.

2634 patients undergoing RP were included (RRP: 66%, RARP/LARP: 34%). PLND was performed in 88% (RRP: 88.5%, RARP/LARP: 86.8%, p = 0.208). In intermediateor high risk PCa, PLND was performed in 97.2% (RRP: 97.7%, RARP/LARP: 96.2, p = 0.048). Of those, the mean number of LN was 19 (RRP: 19 vs.

17, p < 0.005) and sufficient PLND was observed in 84.6% of RRP compared to 77.2% of RARP/LARP (p < 0.005). Symptomatic lymphoceles requiring surgical treatment occurred more often in RRP than in RARP/LARP (4.0% vs. 1.6%, p = 0.001).

The general guideline adherence regarding performing PNLD and the LN yield is high, regardless of the surgical approach. As expected, lymph node yield was higher when very experienced surgeons conducted the procedure. This should be considered in patients' counseling.

World journal of urology. 2018 Feb 09 [Epub ahead of print]

Angelika Borkowetz, Johannes Bruendl, Martin Drerup, Jonas Herrmann, Hendrik Isbarn, Burkhard Beyer, GeSRU Academics Prostate Cancer Group

Department of Urology, University Hospital Carl Gustav Carus, Technische Universität Dresden, Fetscherstrasse 74, 01307, Dresden, Germany. ., Department of Urology, Caritas St. Josef Medical Center, University Regensburg, Landshuter Strasse 64, 93053, Regensburg, Germany., Department of Urology, University Hospital Salzburg, Muellner Hauptstrasse 48, 5020, Salzburg, Austria., Department of Urology, Theresien Hospital Mannheim, Bassermannstrasse 1, 68165, Mannheim, Germany., Department of Urology, Regio Clinic Elmshorn, Agnes-Karll-Allee 17, 25337, Elmshorn, Germany., Martini-Klinik, Prostate Cancer Center Hamburg, Martinistrasse 52, 20246, Hamburg, Germany.

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