Renal Cell Carcinoma in Young Patients is Associated with Poorer Prognosis

Abstract Introduction: Renal cell carcinoma (RCC) in young patients is uncommon but thought to represent a distinctive clinical entity from older patients with different clinico-pathologic features and outcomes. We evaluated the association of age at the time of diagnosis with pathological staging, histological parameters, disease recurrence and overall survival (OS) following radical or partial nephrectomy for non-metastatic RCC in native kidneys. Materials and Methods: A retrospective review of 316 patients with RCC after nephrectomy at a single institution between January 2001 and June 2008 was performed. Eligible patients included all histologically proven primary non-metastatic RCC treated by radical or partial nephrectomy. They were categorised into group A (≤40 years at diagnosis) and B (>40 years). Differences in clinical parameters were analysed using the Mann Whitney U test. The prognostic potential of age at diagnosis was evaluated using Cox proportional hazards regression. Survival was estimated using the Kaplan Meier method. Results: There were 33 patients in group A and 283 patients in group B. There were more non-clear cell tumours in the younger group (30% vs 14%, P <0.05). No statistical differences were found in the stage and grade of both groups. At a median follow-up time of 41 months, the younger group had a higher metastatic rate (18% vs 10.5%, P <0.05), lower 5-year cancer-specifi c survival (82% vs 98%, P <0.05) and lower 5-year OS (82 % vs 95%, P <0.05). Conclusion: Younger patients were more likely to have non-clear cell RCC with higher disease recurrence and lower OS. They should not be assumed to have similar features and outcomes as screen-detected early RCC in older patients

Promoting remyelination in multiple sclerosis-recent advances

We review the current state of knowledge of remyelination in multiple sclerosis (MS), concentrating on advances in the understanding of the pathology and the regenerative response, and we summarise progress on the development of new therapies to enhance remyelination aimed at reducing progressive accumulation of disability in MS. We discuss key target pathways identified in experimental models, as although most identified targets have not yet progressed to the stage of being tested in human clinical trials, they may provide treatment strategies for demyelinating diseases in the future. Finally, we discuss some of the problems associated with testing this class of drugs, where they might fit into the therapeutic arsenal and the gaps in our knowledge

Renal Cell Carcinoma in Young Patients is Associated with Poorer Prognosis

Introduction: Renal cell carcinoma (RCC) in young patients is uncommon but thought to represent a distinctive clinical entity from older patients with different clinico-pathologic features and outcomes. We evaluated the association of age at the time of diagnosis with pathological staging, histological parameters, disease recurrence and overall survival (OS) following radical or partial nephrectomy for non-metastatic RCC in native kidneys. Materials and Methods: A retrospective review of 316 patients with RCC after nephrectomy at a single institution between January 2001 and June 2008 was performed. Eligible patients included all histologically proven primary non-metastatic RCC treated by radical or partial nephrectomy. They were categorised into group A (≤40 years at diagnosis) and B (&gt;40 years). Differences in clinical parameters were analysed using the Mann Whitney U test. The prognostic potential of age at diagnosis was evaluated using Cox proportional hazards regression. Survival was estimated using the Kaplan Meier method. Results: There were 33 patients in group A and 283 patients in group B. There were more non-clear cell tumours in the younger group (30% vs 14%, P &lt;0.05). No statistical differences were found in the stage and grade of both groups. At a median follow-up time of 41 months, the younger group had a higher metastatic rate (18% vs 10.5%, P &lt;0.05), lower 5-year cancer-specific survival (82% vs 98%, P &lt;0.05) and lower 5-year OS (82 % vs 95%, P&lt;0.05). Conclusion: Younger patients were more likely to have non-clear cell RCC with higher disease recurrence and lower OS. They should not be assumed to have similar features and outcomes as screen-detected early RCC in older patients. Key words: Age, Cancer recurrence, Overall survival, Renal cell carcinoma, Nephrectomy</jats:p

Evaluation of Data Completeness of the Prostate Cancer Registry after Robotic Radical Prostatectomy

Introduction: This study evaluated the data completeness in the registration of prostate cancer after robotic radical prostatectomy (RRP) in the Urological Cancer Registry at the Singapore General Hospital (SGH), and its compliance to the international standards of US Commission on Cancer (CoC). Materials and Methods: A certified cancer registrar reviewed all RRP cases between June 2003 and July 2008 in the Urological Cancer Registry at SGH. Results: A total of 365 cases were reviewed. The results showed that 351 (96.2%) of RRP patients’ demographic data were captured and 321 (87.9%) of RRP patients were staged. According to the international standards of CoC for an academic institution, the requirement is to capture 100% of all cancer cases and stage at least 90% of them. As for data completeness, 317 (86.7%) of RRP details were captured as compared to the CoC standard requirement of 90%. Conclusions: The existing manual cancer registry does not fully meet the CoC standards. Hence, the registry increased sources of case-finding and used active case-finding. With improvements made to the data collection methodology, the number of prostate cancer cases identified has been increased by 52.1% from 215 in 2007 to 327 in 2009. The registry is expected to be fully compliant with the CoC standard with the recruitment of more full time cancer registrars when a new web-based cancer registry is in full operation. Key words: Case-finding, Computerised cancer registry, Data quality control, Manual cancer registry</jats:p

Comparing the Perioperative and Oncological Outcomes of Open Versus Minimally Invasive Inguinal Lymphadenectomy in Penile Cancer: A Systematic Review and Meta-Analysis

Background: Long-term survival in penile cancer is dependent on the presence and extent of lymph node metastases. Historically, inguinal lymph node dissection (ILND) has been performed via an open approach (O-ILND). More recently, minimally invasive surgical alternatives (MIS-ILND) such as video-endoscopic and robot-assisted ILND have emerged. This review aims to compare the (1) perioperative outcomes, (2) complication rates, and (3) oncological efficacy between O-ILND and MIS-ILND. Methods: We conducted a PRISMA-compliant meta-analysis including studies comparing O-ILND versus MIS-ILND for penile cancer. Outcomes were pooled in random-effects meta-analyses. Results: Sixteen articles comprising 1054 patients were analysed. There was an observed trend towards longer operative time for the MIS-ILND approach (mean difference 28 min; 95% CI &minus;2 to 58 min, p = 0.06), particularly with the robotic-assisted technique. Total LN yield (mean 12.3, mean difference 0.3, 95% CI &minus;0.3 to 0.9, p = 0.13), and positive LN (RR 0.98, 95% CI 0.88&ndash;1.10, p = 0.75) were similar between groups. MIS-ILND significantly reduced complication rates for both minor (RR: 0.65, 95% CI 0.45&ndash;0.94, p = 0.02) and major complications (RR: 0.25, 95% CI 0.12&ndash;0.53, p = 0.002). Particularly, there was also lower wound infection rate with MIS-ILND (RR: 0.43, 95% CI 0.22&ndash;0.82, p = 0.02), corresponding to a shorter hospital stay of average 4 days (MD &minus;4, 95% CI &minus;6&ndash;&minus;2, p = 0.05). Rates of skin/flap necrosis, lymphedema, lymphocele, and drainage time did not differ significantly. Local groin recurrence and overall survival did not differ between approaches. Conclusions: MIS-ILND is associated with fewer perioperative complications and shorter hospitalisation without compromising oncologic outcomes. These findings support its broader adoption, particularly in high-volume centres with appropriate surgical expertise