Lymph node (LN) metastases have a significant negative impact on the prognosis of urological malignancies. Unfortunately, current imaging modalities are insufficient when it comes to detecting micrometastases; thus, surgical LN removal is commonly used. However, there is still no established ideal lymph node dissection (LND) template, leading to unnecessary invasive staging and the possibility of missing LN metastases located outside the standard template. To address this issue, the sentinel lymph node (SLN) concept has been proposed. This technique involves identifying and removing the first group of draining LNs, which can accurately stage cancer. While successful in breast cancer and melanoma, the SLN technique in urologic oncology is still considered experimental due to high false-negative rates and lack of data in prostate, bladder, and kidney cancer. Nevertheless, the development of new tracers, imaging modalities, and surgical techniques may improve the potential of the SLN procedures in urological oncology. In this review, we aim to discuss the current knowledge and future contributions of the SLN procedure in the management of urological malignancies.
Lymph node invasion in prostate cancer is a significant prognostic factor indicating worse prognosis. While it significantly affects both survival rates and recurrence, proper management remains a controversial and unsolved issue. The thorough evaluation of risk factors associated with nodal involvement, such as lymph node density or extracapsular extension, is crucial to establish the potential expansion of the disease and to substratify patients clinically. There are multiple strategies that may be employed for patients with positive lymph nodes. Nowadays, therapeutic methods are generally based on observation, radiotherapy, and androgen deprivation therapy. However, the current guidelines are incoherent in terms of the most effective management approach. Future management strategies are expected to make use of novel diagnostic tools and therapies, such as photodynamic therapy or diagnostic imaging with prostate-specific membrane antigen. Nevertheless, this heterogeneous group of men remains a great therapeutic concern, and both the clarification of the guidelines and the optimal substratification of patients are required.
15 March 2025 in International Urology and Nephrology
Purpose This study aimed to evaluate the impact of metastatic lymph nodes (LNs) outside the extended pelvic lymph node dissection (ePLND) template on oncological outcomes, staging, grading, and concomitant parameters in prostate cancer (PCa) patients undergoing radical prostatectomy (RP). Methods Data from 860 patients with histologically confirmed, non-metastatic PCa who underwent RP between 2012 and 2022 were retrospectively analyzed. All specimens underwent detailed histopathological examination. Preoperative and postoperative clinicopathological data were collected and analyzed. Subgroup associations were evaluated using the Mann–Whitney U test and the Kruskal–Wallis test. Kendall’s tau-b coefficient was employed to evaluate the association between two variables. All tests were performed using a two-tailed approach, with a p value of less than 0.05 considered statistically significant for differences between groups. Kaplan–Meier and Cox regression analyses assessed biochemical recurrence (BCR)-free survival based on lymph node invasion (LNI) (pN0 vs. pN1) and the presence of metastatic LNs outside the ePLND template. Results Of the 860 patients, 613 underwent modified-ePLND. Among them, 122 (19.9%) were pN1, with 22 patients (18%) having metastatic LNs located outside the classical ePLND template. Patients with LNs beyond the ePLND template exhibited higher clinical T stages (p = 0.016) and a greater percentage of positive biopsy cores (p = 0.008). However, no correlation was observed with Gleason Grading Group (p = 0.491). Kaplan–Meier analysis showed that pN1 patients had higher BCR rates compared to pN0 patients, but this difference did not reach statistical significance (p = 0.174). Similarly, patients with metastatic LNs outside the ePLND template demonstrated a trend toward increased BCR risk, though this was not statistically significant (p = 0.140). Conclusion Metastatic LNs beyond the ePLND template correlate with more advanced tumor staging in PCa. However, they show no association with tumor grading. Their influence on BCR remains inconclusive, likely due to the small number of patients included in the BCR-associated analyses. Extended lymphadenectomy may enhance staging accuracy but must be weighed against the potential for increased surgical morbidity.
Lymph node invasion in prostate cancer is a significant prognostic factor indicating worse prognosis. While it affects significantly both survival rates and recurrence, proper management remains a heated issue. Thorough evaluation of risk factors associated with nodal involvement, such as lymph node density or extracapsular extension, is crucial to establish potential expansion of the disease and to substratify patients clinically. There are multiple strategies that may be taken into consideration for patients with positive lymph nodes. Nowadays therapeutic methods are generally based on observation, radiotherapy, and androgen deprivation therapy. However current guidelines are incoherent in terms of indication of the most effective management approach. Future management strategies will be expected to reach for novel diagnostic tools and therapies, such as photodynamic therapy or diagnostic imaging with prostate specific membrane antigen. Nevertheless, this heterogeneous group of men remains a vast therapeutic concern, and both clarification of the guidelines and optimal substratification of patients is required.
(1) Background: Donor nephrectomy for living donor kidney transplantation using minimally invasive techniques is a safe procedure that has been used for more than 20 years with excellent results. The total laparoscopic approach offers decreased postoperative pain, less incisional morbidity, and a shorter recovery time. (2) Methods: We present the results of a series of 43 laparoscopic donor nephrectomies performed in a single center. The procedures were performed in a systematic approach with transperitoneal access using four ports. The main renal artery and vein were ligated using a linear stapler fixed with an alternate triple row of titanium staples. The specimen was extracted in an endoscopic bag through an additional incision. (3) Results: All procedures were performed laparoscopically without conversion to open surgery. The average warm ischemia time was 4.73 min. In all recipients, immediate kidney allograft function was observed. (4) Conclusions: Total laparoscopic living donor nephrectomy is a safe procedure. It was performed successfully in all cases with a short surgical time, low morbidity, and 0% mortality.