Good outcome for patients with few lymph node metastases after radical retropubic prostatectomy

Schumacher, Martin C; Burkhard, Fiona C; Thalmann, George N; Fleischmann, Achim; Studer, Urs E (2008). Good outcome for patients with few lymph node metastases after radical retropubic prostatectomy. European urology, 54(2), pp. 344-52. Amsterdam: Elsevier 10.1016/j.eururo.2008.05.023

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BACKGROUND: Conflicting results exist regarding the value of an extended pelvic lymph node dissection (PLND) in node-positive patients undergoing radical retropubic prostatectomy (RRP) for clinically localized prostate cancer. OBJECTIVE: To assess the long-term outcome in node-positive patients who underwent extended PLND followed by RRP. DESIGN, SETTING, AND PARTICIPANTS: A consecutive series of 122 node positive patients with negative preoperative staging examinations, no neoadjuvant hormonal or radiotherapy, and who underwent extended PLND (>/=10 lymph nodes in the surgical specimen) followed by RRP were analyzed. None of the patients received immediate androgen deprivation therapy (ADT). INTERVENTION: All patients underwent extended PLND followed by RRP. MEASUREMENTS: Biochemical recurrence-free survival, cancer-specific, and overall survival were assessed using the Kaplan-Meier technique. RESULTS AND LIMITATIONS: Median prostate-specific antigen (PSA) was 16ng/ml. At pathological examination 76% of the 122 patients had pT3-pT4 tumours, 50% seminal vesicle infiltration. A median of 22 nodes were removed per patient. Median cancer-specific survival at 5 and 10 yr was 84.5% and 60.1%, respectively. In patients with </=2 or >/=3 positive nodes removed, median cancer-specific survival at 10 yr was 78.6% and 33.4%, respectively (p<0.001). After a median period of 33 mo, 61 of the 122 patients (50%) received ADT, particularly those (69%) with >/=3 positive nodes removed. This retrospective study includes a significant percentage of patients with high tumour burden, and therefore may not reflect current patient series. CONCLUSIONS: Patients with </=2 positive nodes detected after extended PLND followed by RRP had good long-term results and should not be denied treatment with curative intent. In contrast, prognosis was poor in patients with >/=3 positive nodes, despite extended PLND and despite ADT in 69% of patients.

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