RESUMO
Short-course preoperative radiotherapy (RT) is widely used in northern Europe for locally advanced resectable rectal cancer, but its role in the era of advanced imaging techniques is uncertain. Here, we reviewed articles and abstracts on SCRT published from 1974 through 2013 with the goal of identifying patients who might be best suited for short-course RT. We included relevant articles comparing surgery with or without preoperative radiation published before and after the advent of total mesorectal excision. We also analyzed two randomized trials directly comparing short-course RT with conventionally fractionated chemoradiation (the Polish Colorectal Study Group and the Trans-Tasman Radiation Oncology Group) that compared short-course RT with conventional chemoradiotherapy. We conclude from our review that short-course RT can be generally applied for operable rectal cancer and produces high rates of pelvic control with acceptable toxicity; it reduces local recurrence rates but does not increase overall survival. SCRT seems to be best used for tumors considered "low risk," i.e., those that are >5 cm from the anal margin, without circumferential margin involvement, and involvement of fewer than 4 lymph nodes. Whether sequential chemotherapy can further improve outcomes remains to be seen, as does the best time for surgery (immediately or 6-8 weeks after RT). We further recommend that selection of patients for short-course RT should be based on findings from magnetic resonance imaging or transrectal ultrasonography.
RESUMO
BACKGROUND AND OBJECTIVE: The esophageal cancer (EC) is a slightly frequent but serious disease. Our aim is to describe the characteristics of the patients with EC in our Hospital. PATIENTS AND METHOD: We included 200 patients consecutively diagnosed and/or treated for CE between between January, 2003 and December, 2007. The location of the tumor was analyzed, the histological type, the proofs realized for to establish the classification, the treatments, the survival and the morbi-mortality of the surgery. RESULTS: The endoscopic ultrasonography (EUS) modified the therapeutic strategy in 12% of the patients. The survival to the year, 3 years and 5 years was 48%, 25% and 21%, respectively. 74 (32%) patients were operated, 48 (65%) of them was treated with neoadjuvant chemoradiotherapy. The postsurgical mortality was 8% (6 patients) and the morbidity was 57% (114 patients). In multivariate analysis, after adjustment for traditional risk factors, were the location in the average third ( [HR, hazard ratio]=2.3; confidence interval [IC] of 95%, 1.3-4.1) and not accomplishment of surgery after the chemotherapy and radiotherapy (HR=1.9; IC to 95%, 1.15-3). CONCLUSIONS: The diagnosis is realized very later. The EUS has contributed a better therapeutic strategy to our patients. The mortality continues being high.
Assuntos
Neoplasias Esofágicas/mortalidade , Neoplasias Esofágicas/patologia , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Taxa de SobrevidaRESUMO
PURPOSE: Although many studies have confirmed the synergic effects of combining chemotherapy (CT) and radiotherapy (RT), clinical data evaluating safety and efficacy of erlotinib in combination with RT in locally advanced non-small-cell lung cancer (NSCLC) are limited. The aim of this study was to determine the feasibility, tolerability, and efficacy of the concurrent addition of erlotinib to the standard three-dimensional conformal thoracic RT in patients with unresectable or locally advanced NSCLC who are not candidates for receiving standard CT. PATIENTS AND METHODS: Feasibility and tolerability, assessed by evaluating adverse events (AEs), and effectiveness, by calculating progression-free survival (PFS), overall survival (OS), cancer-specific survival (CSS), and objective response rate (ORR), were analyzed in 30 patients receiving RT alone and 60 receiving RT and erlotinib. RESULTS: Erlotinib with RT showed an extended CSS and a higher rate of complete responses compared with RT alone. No differences between groups were found regarding OS, PFS, and ORR. AEs were significantly higher in the combined treatment, which mainly included cutaneous toxicity, dyspnea, fatigue, hyporexia, diarrhea, and infection. Erlotinib did not increase the toxicity produced by RT. CONCLUSION: The combination of erlotinib with RT produced, in our study, a scarce clinical benefit in the treatment of unresectable or locally advanced NSCLC, limited to complete responses and longer CSS rate compared with RT alone. Increased toxicity events were associated with combined therapy, which mainly included cutaneous toxicity. In our opinion, further studies in molecularly unselected lung cancer patients treated with EGFR TKIs and RT are not indicated. The use of biomarkers for the identification of patients that are most likely to benefit from this treatment is an essential next step in the research of this condition.