ABSTRACT
BACKGROUND: Whether focal therapy (FT) jeopardizes subsequent prostate cancer (PCa) salvage treatments, when needed, remains a major concern and is largely unknown. OBJECTIVES: To describe and report safety, oncological and functional outcomes of salvage treatments following PCa recurrence and/or persistence after FT. MATERIALS AND METHODS: A systematic review on salvage treatments for PCa recurrence/persistence after FT was carried out according to the PRISMA guidelines using an 'a priori protocol'. A comprehensive literature review was also performed to investigate options to treat FT PCa recurrence/persistence that have not yet been reported after FT. RESULTS: Four retrospective series were included (n = 67 men); overall quality of the studies was low. Salvage treatments yielded 32.8% (n = 22 of 67) biochemical recurrence rate (BCR) after a 7-62-months mean follow-up. No cancer-related deaths occurred. Patients experienced acceptable complications (n = 12 patients; n = 8 Clavien 3) and rare severe incontinence (4.5% using > 2 pads/day). Erectile function (EF) was rarely assessed (62.8% no information available), being overall poor. Other salvage options have been reported following whole-gland ablation and include: (1) re-do ablation yielding worst BCR and EF but similar complications and continence compared to first line ablation; (2) salvage radiotherapy yielding 16.6-38.8% BCR and acceptable toxicity profile with urinary and EF being poorly assessed. CONCLUSIONS: Current evidence is weak and limited to a few retrospective series. Oncological control is acceptable although it seems lower compared to a primary treatment setting. Functional outcomes are comparable to primary treatment with the exception of EF; overall, suggesting FT has little impact on subsequent salvage treatments. Future studies are needed to confirm the current findings.
Subject(s)
Prostatic Neoplasms/therapy , Salvage Therapy , Decision Trees , Humans , Male , Prostatic Neoplasms/pathology , Salvage Therapy/adverse effects , Treatment OutcomeABSTRACT
AIM: To determine the impact of the extent of lymph node invasion (LNI) on long-term oncological outcomes after radical prostatectomy (RP). MATERIAL AND METHODS: In this retrospective study, we examined the data of 1,249 high-risk, non-metastatic PCa patients treated with RP and pelvic lymph node dissection (PLND) between 1989 and 2011 at eight different tertiary institutions. We fitted univariate and multivariate Cox models to assess independent predictors of cancer-specific survival (CSS) and overall survival (OS). The number of positive lymph node (LN) was dichotomized according to the most informative cutoff predicting CSS. Kaplan-Meier curves assessed CSS and OS rates. Only patients with at least 10 LNs removed at PLND were included. This cutoff was chosen as a surrogate for a well performed PNLD. RESULTS: Mean age was 65 years (median: 66, IQR 60-70). Positive surgical margins were present in 53.7% (n = 671). Final Gleason score (GS) was 2-6 in 12.7% (n = 158), 7 in 52% (n = 649), and 8-10 in 35.4% (n = 442). The median number of LNs removed during PLND was 15 (IQR 12-17). Of all patients, 1,128 (90.3%) had 0-3 positive LNs, while 126 (9.7%) had ≥4 positive LNs. Patients with 0-3 positive LNs had significantly better CSS outcome at 10-year follow-up compared to patients with ≥4 positive LNs (87 vs. 50%; p < 0.0001). Similar results were obtained for OS, with a 72 vs. 37% (p < 0.0001) survival at 10 years for patients with 0-3 vs. ≥4 positive LNs, respectively. At multivariate analysis, final GS of 8-10, salvage ADT therapy, and ≥4 (vs. <4) positive LNs were predictors of worse CSS and OS. Pathological stage pT4 was an additional predictor of worse CSS. CONCLUSION: Four or more positive LNs, pathological stage pT4, and final GS of 8-10 represent independent predictors for worse CSS in patients with high-risk PCa. Primary tumor biology remains a strong driver of tumor progression and patients having ≥4 positive LNs could be considered an enriched patient group in which novel treatment strategies should be studied.
