1
|
Cury FL, Viani GA, Gouveia AG, Moraes FY. In reply to Niu et al: Meta-analysis of 5-day preoperative radiotherapy for soft tissue sarcoma (5D-PREORTS). Radiother Oncol 2024:110255. [PMID: 38522598 DOI: 10.1016/j.radonc.2024.110255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 03/21/2024] [Indexed: 03/26/2024]
Affiliation(s)
- Fabio L Cury
- Department of Oncology, Division of Radiation Oncology, McGill University Health Centre, McGill University, Montreal, Canada.
| | - Gustavo A Viani
- Ribeirao Preto Medical School, Department of Medical Imagings, Hematology and Oncology of University of São Paulo (FMRP-USP), Ribeirão Preto, Brazil
| | - Andre G Gouveia
- Department of Oncology - Division of Radiation Oncology, Juravinski Cancer Centre, McMaster University, Hamilton, ON, Canada
| | - Fabio Y Moraes
- Department of Oncology, Division of Radiation Oncology, Kingston General Hospital, Queen's University, Kingston, Canada
| |
Collapse
|
2
|
Gouveia AG, Viani GA, Bratti VF, Marta GN, Hanna SA, Jacinto AA, Silva MS, Hamamura AC, Rosa AA, Castilho MS, Carson L, Hopman WM, Sullivan R, Booth CM, Aggarwal A, Hanna TP, Moraes FY. Challenges in building radiotherapy capacity: A longitudinal study evaluating eight years of the Brazilian radiotherapy expansion plan. J Cancer Policy 2024; 39:100459. [PMID: 38029960 DOI: 10.1016/j.jcpo.2023.100459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 11/12/2023] [Accepted: 11/23/2023] [Indexed: 12/01/2023]
Abstract
BACKGROUND In 2012, the Brazilian government launched a radiotherapy (RT) expansion plan (PER-SUS) to install 100 linear accelerators. This study assesses the development of this program after eight years. METHODS Official reports from the Ministry of Health (MoH) were reviewed. RT centres projects status, timeframes, and cost data (all converted to US dollars) were extracted. The time analysis was divided into seven phases, and for cost evaluation, there were five stages. The initial predicted project time (IPPT) and costs (estimated by the MoH) for each phase were compared between the 18 operational RT centres (able to treat patients) and 30 non-operational RT centres using t-tests, ANOVA, and the Mann-Whitney U. A p-value < 0.05 indicates statistical significance. RESULTS A significant delay was observed when comparing the IPPT with the overall time to conclude each 48 RT centres project (p < 0.001), with considerable delays in the first five phases (p < 0.001 for all). Moreover, the median time to conclude the first 18 operational RT centres (77.4 months) was shorter compared with the 30 non-operational RT centres (94.0 months), p < 0.001. The total cost of 48 RT services was USD 82,84 millions (mi) with a significant difference in the per project median total cost between 18 operational RT centres, USD1,34 mi and 30 non-operational RT centres USD2,11 mi, p < 0.001. All phases had a higher cost when comparing 30 non-operational RT centres to 18 operational RT centres, p < 0.001. The median total cost for expanding existing RT centres was USD1,30 mi versus USD2,18 mi for new RT services, p < 0.0001. CONCLUSION After eight years, the PER-SUS programs showed a substantial delay in most projects and their phases, with increased costs over time. POLICY SUMMARY Our findings indicate a need to act to increase the success of this plan. This study may provide a benchmark for other developing countries trying to expand RT capacity.
Collapse
Affiliation(s)
- Andre G Gouveia
- Department of Oncology, Division of Radiation Oncology, McMaster University, Juravinski Cancer Centre, Hamilton, ON, Canada; Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil
| | - Gustavo A Viani
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil; Ribeirão Preto Medical School, Department of medical imagings, hematology and oncology of University of São Paulo (FMRP-USP), Ribeirão Preto, Brazil
| | - Vanessa F Bratti
- Department of Public Health Sciences, Queen's University, Kingston, ON, Canada
| | - Gustavo N Marta
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil; Department of Oncology, Division of Radiation Oncology, Sírio Libanes Hospital, São Paulo, Brazil
| | - Samir A Hanna
- Department of Oncology, Division of Radiation Oncology, Sírio Libanes Hospital, São Paulo, Brazil
| | - Alexandre A Jacinto
- Radiation Oncology Department, Barretos Cancer Hospital, Barretos, SP, Brazil
| | - Mauricio S Silva
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil; Radiation Oncology Unit, Santa Maria Federal University, Santa Maria; and Clínica de Radioterapia de Santa Maria, Brazil
| | - Ana C Hamamura
- Ribeirão Preto Medical School, Department of medical imagings, hematology and oncology of University of São Paulo (FMRP-USP), Ribeirão Preto, Brazil
| | - Arthur A Rosa
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil; Radiotherapy Department Oncoclinicas Salvador and Hospital Santa Izabel, Salvador, BA, Brazil
| | - Marcus S Castilho
- Radiotherapy Department of the Felicio Rocho Hospital, Belo Horizonte, MG, Brazil; President, Brazilian Radiotherapy Society - SBRT, Brazil
| | - Laura Carson
- Division of Cancer Care and Epidemiology, Cancer Research Institute, Queen's University, Kingston, ON, Canada; Department of Oncology, Queen's University, Kingston, ON, Canada
| | - Wilma M Hopman
- Kingston General Health Research Institute; Department of Public Health Sciences, Queen's University, Kingston, ON, Canada
| | - Richard Sullivan
- Institute of Cancer Policy, Global Oncology Group, King's College London, London, UK
| | - Christopher M Booth
- Division of Cancer Care and Epidemiology, Cancer Research Institute, Queen's University, Kingston, ON, Canada; Department of Oncology, Kingston General Hospital, Queen's University, Kingston, ON, Canada
| | - Ajay Aggarwal
- Department of Oncology, Queen's University, Kingston, ON, Canada; Department of Health Services Research and Policy, London School of Hygiene & Tropical Medicine, London, UK; Department of Clinical Oncology, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Timothy P Hanna
- Division of Cancer Care and Epidemiology, Cancer Research Institute, Queen's University, Kingston, ON, Canada; Department of Oncology, Kingston General Hospital, Queen's University, Kingston, ON, Canada; Department of Medicine, Kingston General Hospital, Queen's University, Kingston, ON, Canada
| | - Fabio Y Moraes
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil; Division of Cancer Care and Epidemiology, Cancer Research Institute, Queen's University, Kingston, ON, Canada; Department of Oncology, Kingston General Hospital, Queen's University, Kingston, ON, Canada.
| |
Collapse
|
3
|
Starling MTM, Thibodeau S, de Sousa CFPM, Restini FCF, Viani GA, Gouveia AG, Mendez LC, Marta GN, Moraes FY. Optimizing Clinical Implementation of Hypofractionation: Comprehensive Evidence Synthesis and Practical Guidelines for Low- and Middle-Income Settings. Cancers (Basel) 2024; 16:539. [PMID: 38339290 PMCID: PMC10854666 DOI: 10.3390/cancers16030539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 01/15/2024] [Accepted: 01/16/2024] [Indexed: 02/12/2024] Open
Abstract
The global cancer burden, especially in low- and middle-income countries (LMICs), worsens existing disparities, amplified by the rising costs of advanced treatments. The shortage of radiation therapy (RT) services is a significant issue in LMICs. Extended conventional treatment regimens pose significant challenges, especially in resource-limited settings. Hypofractionated radiotherapy (HRT) and ultra-hypofractionated/stereotactic body radiation therapy (SBRT) offer promising alternatives by shortening treatment durations. This approach optimizes the utilization of radiotherapy machines, making them more effective in meeting the growing demand for cancer care. Adopting HRT/SBRT holds significant potential, especially in LMICs. This review provides the latest clinical evidence and guideline recommendations for the application of HRT/SBRT in the treatment of breast, prostate, and lung cancers. It emphasizes the critical importance of rigorous training, technology, stringent quality assurance, and safety protocols to ensure precise and secure treatments. Additionally, it addresses practical considerations for implementing these treatments in LMICs, highlighting the need for comprehensive support and collaboration to enhance patient access to advanced cancer care.
Collapse
Affiliation(s)
| | - Stephane Thibodeau
- Division of Radiation Oncology, Department of Oncology, Kingston General Hospital, Queen’s University, Kingston, ON K7L 3N6, Canada
| | | | | | - Gustavo A. Viani
- Department of Medical Imagings, Ribeirão Preto Medical School, Hematology and Oncology of University of São Paulo (FMRP-USP), Ribeirão Preto 14049-900, Brazil
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre 90619-900, Brazil
| | - Andre G. Gouveia
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre 90619-900, Brazil
- Division of Radiation Oncology, Department of Oncology, Juravinski Cancer Centre, McMaster University, Hamilton, ON L8V 5C2, Canada
| | - Lucas C. Mendez
- Division of Radiation Oncology, Department of Oncology, London Health Sciences Centre, London, ON N6A 5W9, Canada
| | - Gustavo Nader Marta
- Radiation Oncology Department, Hospital Sirio Libanês, Sao Paulo 01308-050, Brazil
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre 90619-900, Brazil
| | - Fabio Ynoe Moraes
- Division of Radiation Oncology, Department of Oncology, Kingston General Hospital, Queen’s University, Kingston, ON K7L 3N6, Canada
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre 90619-900, Brazil
| |
Collapse
|
4
|
Cury FL, Viani GA, Gouveia AG, Freire CVS, Grisi GDA, Moraes FY. Meta-analysis of 5-day preoperative radiotherapy for soft tissue sarcoma (5D-PREORTS). Radiother Oncol 2024; 190:109935. [PMID: 37884194 DOI: 10.1016/j.radonc.2023.109935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 09/25/2023] [Accepted: 09/26/2023] [Indexed: 10/28/2023]
Abstract
BACKGROUND AND PURPOSE Although the role of conventionally fractionated radiotherapy (RT) in combination with surgery in the limb-sparing treatment of soft tissue sarcoma (STS) patients is well established, the effectiveness and safety of 5-day preoperative radiotherapy (RT) remain controversial. We performed a meta-analysis to evaluate the treatment outcomes of 5-day preoperative RT using ≥ 5 Gy per fraction with contemporary radiotherapy techniques. MATERIALS AND METHODS Medline, Embase, the Cochrane Library, and the proceedings of annual meetings through March 2022 were used to identify eligible studies. Following the PRISMA and MOOSE guidelines, a meta-regression analysis was performed to assess possible correlations between variables and outcomes. A p-value < 0.05 was considered significant. RESULTS Nine prospective studies with 786 patients (median follow-up 35 months, 20-60 months) treated with preoperative RT delivered a median total of 30 Gy (25-40 Gy) in 5 fractions. The local control (LC), R0 margins, overall survival (OS), and distant relapse (DR) rates were 92.3% (95% CI: 87---97%), 84.5% (95% CI: 78---90%), 78% (95% CI: 70---86%), and 36% (95% CI: 70---86%). The meta-regression analysis identified a significant relationship between biological equivalent dose (BED) and larger tumor size for LC and R0 margins (p < 0.05). The subgroup analysis reveals that patients receiving BED ≥ 90 (equivalent to 30 Gy in 5 fractions) had a higher LC control rate than BED < 90 (p < 0.0001). The complete pathologic response and amputation rates were 19% (95% CI: 13-26%) and 8.3% (95% CI: 0.5-15%). Amputation rates were higher in studies using the lowest and highest doses and were related to salvage surgery after recurrence and complications, respectively. The rate of wound complication and fibrosis grade 2 or worse was 30% (95% CI 23-38%) and 6.4% (95% CI 1.9-11%). CONCLUSION A 5-day course of preoperative RT results in high LC and favorable R0 margins, with acceptable complication rates in most studies. Better local control and R0 margins were associated with regimens using higher BED, i.e., doses equal to or higher than 30 Gy when using 5 fractions.
Collapse
Affiliation(s)
- Fabio L Cury
- Department of Oncology, Division of Radiation Oncology, McGill University Health Centre, McGill University, Montreal, Canada.
| | - Gustavo A Viani
- Ribeirao Preto Medical School, Department of Medical Imagings, Hematology and Oncology of University of São Paulo (FMRP-USP), Ribeirão Preto, Brazil.
| | - Andre G Gouveia
- Department of Oncology - Division of Radiation Oncology, Juravinski Cancer Centre, McMaster University, Hamilton, ON, Canada
| | | | | | - Fabio Y Moraes
- Department of Oncology, Division of Radiation Oncology, Kingston General Hospital, Queen's University, Kingston, Canada
| |
Collapse
|
5
|
Viani GA, Gouveia AG, Pavoni JF, Louie AV, Detsky J, Spratt DE, Moraes FY. A Meta-analysis of the Efficacy and Safety of Stereotactic Arrhythmia Radioablation (STAR) in Patients with Refractory Ventricular Tachycardia. Clin Oncol (R Coll Radiol) 2023; 35:611-620. [PMID: 37365062 DOI: 10.1016/j.clon.2023.04.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 03/24/2023] [Accepted: 04/19/2023] [Indexed: 06/28/2023]
Abstract
AIMS Reports of stereotactic arrhythmia radioablation (STAR) in patients with refractory ventricular tachycardia after catheter ablation are limited to small series. Here, we carried out a systematic review and meta-analysis of studies to better determine the efficacy and toxicity of STAR for ventricular tachycardia. MATERIALS AND METHODS Following the Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) and the Meta-analyses Of Observational Studies in Epidemiology (MOOSE) guidelines, eligible studies were identified on Medline, Embase, Cochrane Library and the proceedings of annual meetings to 10 February 2023. Efficacy was defined as a ventricular tachycardia burden reduction >70% at 6 months; safety was defined as <10% of any grade ≥3 toxicity. RESULTS Seven observational studies with a total of 61 patients treated were included. At 6 months, the ventricular tachycardia burden reduction was 92% (95% confidence interval 85-100%) and use of fewer than two anti-arrhythmic drugs was seen in 85% (95% confidence interval 50-100). Six months after STAR, an 86% reduction (95% confidence interval 80-93) in the number of implantable cardioverter-defibrillator shocks was observed. The rates for improved, unchanged and decreased cardiac ejection fraction were 10%, 84% and 6%, respectively. Overall survival at 6 and 12 months was 89% (95% confidence interval 81-97) and 82% (95% confidence interval 65-98). The cardiac-specific survival at 6 months was 87%. Late grade 3 toxicity occurred in 2% (95% confidence interval 0-5%) with no grade 4-5 toxicity. CONCLUSION STAR demonstrated both satisfactory efficacy and safety for the management of refractory ventricular tachycardia and was also associated with a significant decline in anti-arrhythmic drugs consumption. These findings support the continued development of STAR as a treatment option.
Collapse
Affiliation(s)
- G A Viani
- Ribeirão Preto Medical School, Department of Medical Imaging, Hematology and Oncology of University of São Paulo (FMRP-USP), Ribeirão Preto, Brazil; Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil.
| | - A G Gouveia
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil; Radiation Oncology Department - Americas Oncologia, Rio de Janeiro, Brazil
| | - J F Pavoni
- Faculdade de Filosofia, Letras e Ciências Naturais, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - A V Louie
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - J Detsky
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - D E Spratt
- Department of Radiation Oncology, University Hospitals Seidman Cancer Center, Case Comprehensive Cancer Center, Cleveland, Ohio, USA
| | - F Y Moraes
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil; Department of Oncology - Division of Radiation Oncology, Kingston General Hospital, Queen's University, Kingston, Ontario, Canada
| |
Collapse
|
6
|
Viani GA, Gouveia AG, Matsuura FK, Neves LVF, Marta GN, Chua MLK, Moraes YF. Assessing the efficacy of palliative radiation treatment schemes for locally advanced squamous cell carcinoma of the head and neck: a meta-analysis. Rep Pract Oncol Radiother 2023; 28:137-146. [PMID: 37456700 PMCID: PMC10348333 DOI: 10.5603/rpor.a2023.0021] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 03/28/2023] [Indexed: 07/18/2023] Open
Abstract
Background The objective to assess the outcomes from different palliative radiotherapy (RT) schedules in incurable head and neck cancer (HNC), to evaluate if there is a relationship between RT dose, technique, and fractionation with tumor response in contrast to the occurrence of adverse effects. Materials and methods Eligible studies were identified on Medline, Embase, the Cochrane Library, and annual meetings proceedings through June 2020. Following PRISMA and MOOSE guidelines, a cumulative meta-analysis of studies for overall response rate (ORR), overall survival (OS), progression-free survival (PFS), pain/dysphagia relief, and toxicity was performed. A meta-regression analysis was done to assess if there is a connection between RT dose, schedule, and technique with ORR. Results Twenty-eight studies with 1,986 patients treated with palliative RT due to incurable HNC were included. The median OS was 6.5 months [95% confidence interval (CI): 5.6-7.4], and PFS was 3.6 months (95% CI: 2.7-4.3). The ORR, pain and dysphagia relief rates were 72% (95% CI: 0.6-0.8), 83% (95% CI: 52-100%), and 75% (95% CI: 52-100%), respectively. Conventional radiotherapy (2D-RT) or conformational radiotherapy (3D-RT) use were significantly associated with a higher acute toxicity rate (grade ≥ 3) than intensity-modulated radiation therapy (IMRT) or stereotactic body radiation therapy (SBRT). On meta-regression analyses, the total biological effective doses (BED) of RT (p = 0.001), BED > 60 Gy10 (p = 0.001), short course (p = 0.01) and SBRT (p = 0.02) were associated with a superior ORR. Conclusions Palliative RT achieves tumor response and symptom relief in incurable HNC patients. Short course RT of BED > 60 Gy using IMRT could improve its therapeutic ratio. SBRT should be considered when available.
Collapse
Affiliation(s)
- Gustavo A Viani
- Department of Medical Imagings, Hematology And Oncology, Ribeirão Preto Medical School, University of São Paulo (FMRP-USP), São Paulo, Brazil
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil
| | - Andre G Gouveia
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil
- Radiation Oncology Department, Americas Centro de Oncologia Integrado, Rio de Janeiro, Brazil
| | - Fernando K Matsuura
- Department of Medical Imagings, Hematology And Oncology, Ribeirão Preto Medical School, University of São Paulo (FMRP-USP), São Paulo, Brazil
| | - Leonardo V F Neves
- Department of Medical Imagings, Hematology And Oncology, Ribeirão Preto Medical School, University of São Paulo (FMRP-USP), São Paulo, Brazil
| | - Gustavo N Marta
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil
- Radiation Oncology Department, Hospital Sirio Libanês, São Paulo, Brazil
| | - Melvin L K Chua
- Division of Radiation Oncology, National Cancer Centre Singapore, Singapore
| | - Y Fabio Moraes
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil
- Department of Oncology, Division of Radiation Oncology, Kingston General Hospital, Queen's University, Kingston, ON, Canada
| |
Collapse
|
7
|
Moraes FY, Gouveia AG, Marta GN, Viani GA. Radiotherapy combined or not with chemotherapy in adult or pediatric patients with brainstem glioma: a population-based study. Rep Pract Oncol Radiother 2023; 28:181-188. [PMID: 37456697 PMCID: PMC10348337 DOI: 10.5603/rpor.a2023.0016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 03/29/2023] [Indexed: 07/18/2023] Open
Abstract
Background The purpose of this study was to assess the treatment outcomes and prognostic factors of brainstem glioma (BCG) patients treated by radiotherapy (RT) or chemoradiation (CHRT) in the last 20 years in a population cohort. Materials and methods Patients diagnosed with BSG from 2000-2020 treated by RT or CHRT were identified from The Fundação Oncocentro de São Paulo database. Data on age, gender, practice setting, period of treatment, and treatment modality were extracted. The overall survival (OS) was estimated, and the subgroups were compared with the log-rank test. Cox proportional test was used in multivariate analysis. Results A total of 253 patients with a median follow-up of 12 months were included. There were 197 pediatric and 56 adult patients. For the entire cohort, the 1 and 3-year OS was 46%, and 23%, with a median OS of 11 months. In the subgroup analysis, adults had a median survival of 33 months versus 10 months in pediatric patients (p = 0.002). No significant difference in OS between RT and CHRT was observed in pediatric or adult subgroups (p > 0.05). The use of CHRT has significantly increased over the years. In the multivariate analysis, adult patients were the only independent prognostic factor associated with a better OS (p < 0.001). Conclusions BSG had poor survival with no significant improvement in the treatment outcomes over the last 20 years, despite the addition of chemotherapy. Adult patients were independently associated with better survival.
Collapse
Affiliation(s)
- Fabio Y Moraes
- Department of Oncology - Division of Radiation Oncology, Kingston General Hospital, Queen's University, Kingston, ON, Canada
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil
| | - Andre G Gouveia
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil
- Radiation Oncology Department, Americas Centro de Oncologia Integrado, Rio de Janeiro, RJ, Brazil
| | - Gustavo N Marta
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil
- Radiation Oncology Department, Hospital Sirio Libanês, São Paulo, Brazil
| | - Gustavo A Viani
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil
- Ribeirão Preto Medical School, Department of Medical Imagings, Hematology and Oncology of University of São Paulo (FMRP-USP), Ribeirão Preto, Brazil
| |
Collapse
|
8
|
Viani GA, Gouveia AG, Silva INSB, Fernandes GS, Moraes FY. Tumor, patient, and social determinants of health affecting survival in patients with anal cancer treated by chemoradiation. Int J Radiat Oncol Biol Phys 2023; 116:413-420. [PMID: 36828170 DOI: 10.1016/j.ijrobp.2023.02.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 02/10/2023] [Accepted: 02/15/2023] [Indexed: 02/24/2023]
Abstract
BACKGROUND Anal cancer (AC) is a rare disease with scarce evidence from developing countries. We performed a population-based cohort study to investigate the relationship between tumor, patient, and social determinants of health with treatment outcomes of AC treated by chemoradiation (CRT). METHODS Patients diagnosed with AC from 1999 to 2020 were identified from The Fundação Oncocentro de São Paulo database. Only patients with AC staged I-III treated by CRT were included. Age, gender, Tumor category (T), Nodal category (N), education level, practice setting, time to radiotherapy, histology, and treatment local data were extracted. With Cox proportional hazard model, the hazard ratio and 95% CI was used to test the relationship between tumor, patient, and social factors with overall survival (OS) and cancer-specific survival (CSS). RESULTS With 1,462 patients assessed, the median follow-up was 72 months, and the OS and CSS at 5/10 years were 61%/46% and 67%/60%, respectively. In the univariate analysis, T category, N category, gender, practice setting, and educational level were associated with OS and CSS, p<0.05. In the multivariate analysis, female, T1/2 category, N0 category, and private service were independently associated with OS, p<0.05. For CSS, female, T1/2 category, private service, and N0 category, remained significant, p<0.05. CONCLUSION CRT produced satisfactory rates of OS and CSS in patients with AC with tumor, patient, and social determinants of health influencing the outcomes. These data could help mitigate the effects of social distortions on the survival of AC.
Collapse
Affiliation(s)
- Gustavo A Viani
- Ribeirão Preto Medical School, Department of medical imagings, hematology and oncology of University of São Paulo (FMRP-USP), Ribeirão Preto, Brazil; Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil.
| | - Andre G Gouveia
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil; Radiation Oncology Department - Americas Centro de Oncologia Integrado, Rio de Janeiro, RJ, Brazil
| | - Ianara N S B Silva
- Ribeirão Preto Medical School, Department of medical imagings, hematology and oncology of University of São Paulo (FMRP-USP), Ribeirão Preto, Brazil
| | | | - Fabio Y Moraes
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil; Department of Oncology - Division of Radiation Oncology, Kingston General Hospital, Queen's University, Kingston, ON, Canada
| |
Collapse
|
9
|
Viani GA, Gouveia AG, Moraes FY. In reply to Li et al. Letter to the editor. "Once daily (OD) versus twice-daily (BID) chemoradiation for limited stage small cell lung cancer (LS-SCLC): A meta-analysis of randomized clinical trials.". Radiother Oncol 2022; 177:245-246. [PMID: 36265684 DOI: 10.1016/j.radonc.2022.09.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 09/23/2022] [Indexed: 11/07/2022]
Affiliation(s)
- Gustavo A Viani
- Ribeirão Preto Medical School, Department of Medical Imagings, Hematology and Oncology of University of São Paulo (FMRP-USP), Ribeirão Preto, Brazil; Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil.
| | - Andre G Gouveia
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil; Radiation Oncology Department - Americas Centro de Oncologia Integrado, Rio de Janeiro, RJ, Brazil
| | - Fabio Y Moraes
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil; Department of Oncology - Division of Radiation Oncology, Kingston General Hospital, Queen's University, Kingston, ON, Canada
| |
Collapse
|
10
|
Moraes FY, Gouveia AG, Lima RP, Bratti VF, Hamamura AC, Viani GA. Radiotherapy activity in the COVID 19 pandemic: Brazil's operational national-level study. J Cancer Policy 2022; 36:100367. [PMID: 36216270 PMCID: PMC9540705 DOI: 10.1016/j.jcpo.2022.100367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 09/26/2022] [Accepted: 10/05/2022] [Indexed: 11/28/2022]
Abstract
PURPOSE During the COVID-19 pandemic, patients with cancer are at increased risk of not having timely diagnosis and access to cancer treatment. The present study evaluated the COVID-19 pandemic impact on radiotherapy activity in Brazil. METHODS A national-level study was performed to evaluate the RT utilization for prostate, breast, head & neck (HN), Gynecology (GYN), Gastrointestinal (GI), lung cancers, and bone/brain metastases. The data on the RT executed was extracted from the Brazilian Ministry of Health database. The NON-COVID period was considered the control group, and the comparison groups were COVID-2020 (without vaccine) and COVID-2021 (with vaccine). RESULTS We collected the data of 238,355 procedures executed on three periods. Significant difference in the RT utilization between NON-COVID and COVID-2020 were observed for prostate cancer, bone and brain metastases (-12.3 %, p = 0.02, +24 %, p = 0.02 and +14 %, p = 0.04, respectively). Comparing 2 equivalents months from NON-COVID-2019 (ref), COVID-2020, and COVID-2021, a significant increase was identified for bone and brain metastases (2020 +21 %, and 2021 +32 %), and (2020 +20 %, and 2021 +14 %). A stable drop occurred for prostate cancer (2020 -11 % and 2021 -10 %), and a variation was observed for breast (2020 +8 %, and 2021 -1 %) and lung cancer (2020 +10 %, and 2021 -3 %). For other cancers, non-significant changes were observed when comparing 2020 and 2021. CONCLUSION The RT activity was heterogeneously affected with a substantial increase for bone and brain metastases and a meaningful decline for prostate cancer. POLICY SUMMARY With a significant increase in the use of palliative radiotherapy for bone and brain metastases and a meaningful reduction in curative radiotherapy for prostate cancer, we hope these findings can help governments, RT services, medical communities, and other stakeholders develop strategies to mitigate the impact of the present and future pandemics. Finally, despite the changes imposed by the COVID pandemic, it is imperative to enhance screening, increase cancer diagnosis at an early stage, and improve access to all cancer treatments, including radiotherapy.
Collapse
Affiliation(s)
- Fabio Y Moraes
- Department of Oncology - Division of Radiation Oncology, Kingston General Hospital, Queen's University, Kingston, ON, Canada; Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil
| | - Andre G Gouveia
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil; Radiation Oncology Department - Americas Centro de Oncologia Integrado, Rio de Janeiro, RJ, Brazil
| | - Renato P Lima
- Radiation Oncology Department - Hospital Haroldo Juaçaba, Fortaleza, Ceará, Brazil
| | - Vanessa F Bratti
- Queen's University School of Medicine, Department of Public Health Sciences, Kingston, Canada
| | - Ana C Hamamura
- Ribeirão Preto Medical School, Department of medical imagings, hematology and oncology of University of São Paulo (FMRP-USP), Ribeirão Preto, Brazil
| | - Gustavo A Viani
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil; Ribeirão Preto Medical School, Department of medical imagings, hematology and oncology of University of São Paulo (FMRP-USP), Ribeirão Preto, Brazil.
| |
Collapse
|
11
|
Viani GA, Gouveia AG, Matsuura FK, Jacinto AA, Moraes FY. Once daily (OD) versus twice-daily (BID) chemoradiation for limited stage small cell lung cancer (LS-SCLC): A meta-analysis of randomized clinical trials. Radiother Oncol 2022; 173:41-48. [PMID: 35101470 DOI: 10.1016/j.radonc.2022.01.032] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 12/27/2021] [Accepted: 01/20/2022] [Indexed: 10/19/2022]
Abstract
OBJECTIVES Assess Once daily (OD) chemoradiation effectiveness for LS-SCLC compared with twice daily (BID) chemoradiation. METHODS AND MATERIALS Following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guideline, eligible randomized clinical trials (RCT) comparing OD and BID were identified on electronic databases. A meta-analysis was performed to compare overall survival (OS), progression-free survival (PFS), and toxicity. A metaregression analysis was conducted to explore the influence of fractionation, biological effective dose (BED), the proportion of patients treated with prophylactic cranial irradiation (PCI), elective nodal irradiation (ENI), and the start of radiotherapy (week 1 or week 4). RESULTS Five RCTs with a total of 1941 patients (OD vs. BID) were included. The relative risk (RR) for OS and PFS was 0.97 (CI95% 0.8-1.1, p = 0.731) and 0.90 (CI95% 0.7-1.1, p = 0.20) at 3-years. In the metaregression analysis, hypofractionated radiotherapy schedules were associated with an improvement in overall survival (p = 0.03). The start of radiotherapy (W1 or W4), BED, and ENI had no significant effect on OS and PFS. The complete response rate partial response and overall response rate for BID vs OD were 40% vs. 33% (p = 0.97), 50% vs. 57% (p = 0.94), and 89% vs. 93% (p = 0.99). The rate of completed planned RT 96% vs. 94% (p = 0.66), and the % of ≥4 chemotherapy cycles received 74% vs. 74% (p = 0.99), did not differ between OD and BID. The local and distant failure rates were not significantly different between OD and BID 40% vs. 33% (p = 0.88) and 36% vs. 36% (p = 0.99). No difference in grade 2 or grade 3 pneumonitis and esophagitis was observed among the groups (p = NS). CONCLUSION For LS-SCLC, OD conventional chemoradiation results in similar outcomes to BID chemoradiation. In contrast, hypofractionated radiotherapy was associated with a better OS and PFS than BID. Additional randomized phase III trials exploring hypofractionation with systemic therapy are warranted to validate our findings.
Collapse
Affiliation(s)
- Gustavo A Viani
- Ribeirão Preto Medical School, Department of Medical Imagings, Hematology and Oncology of University of São Paulo (FMRP-USP), Brazil.
| | - Andre G Gouveia
- Radiation Oncology Department - Américas Centro de Oncologia Integrado, Rio de Janeiro, Brazil
| | - Fernando K Matsuura
- Department of Medical Imagings, Hematology and Oncology of University of São Paulo (FMRP-USP), Brazil
| | | | - Fabio Y Moraes
- Department of Oncology - Division of Radiation Oncology, Kingston General Hospital, Queen's University, Kingston, Canada
| |
Collapse
|
12
|
Viani GA, Gouveia AG, Moraes FY, Cury FL. "Meta-analysis of elective pelvic nodal irradiation using moderate hypofractionation for high-risk prostate cancer" (MENHYP-ENI). Int J Radiat Oncol Biol Phys 2022; 113:1044-1053. [PMID: 35430317 DOI: 10.1016/j.ijrobp.2022.04.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 02/19/2022] [Accepted: 04/05/2022] [Indexed: 11/29/2022]
Abstract
OBJECTIVES Despite several advances in planning and delivery of radiotherapy (RT) for prostate cancer, the role of elective pelvic nodal irradiation (EPNI) remains controversial for high-risk disease. We performed a meta-analysis to evaluate the outcomes of patients treated with moderate hypofractionated RT (MHF-RT) with EPNI using modern radiotherapy techniques. METHODS Eligible studies were identified on Medline, Embase, the Cochrane Library, and proceedings of annual meetings through October 2021. We followed the PRISMA and MOOSE guidelines. A meta-regression analysis was performed to assess a possible correlation between selected variables and outcomes. A p-value <0.05 was considered significant. RESULTS Eighteen studies with a total of 1745 patients, median follow-up 61 months, treated with EPNI employing MHF-RT were included. The biochemical relapse-free survival (bRFS) at 5-, 7- and 10-year was 90% (95% CI 88-94%), 83% (95%CI 78-91%) and 78% (95%CI 68-88%). The 5-year prostate cancer-specific survival, disease-free survival, distant metastases-free survival and overall survival were 98% (95%CI 97-99%), 88.7% (95%CI 85-93%), 91.2% (95%CI 88-92%), and 93% (95%CI 90-96%), respectively. The rates of local, pelvic, and distant recurrence were 0.38% (95%CI 0-2%), 0.13% (95%CI 0-1.5%), and 7.35% (95%CI 2-12%), respectively. The rate of late GI and GU toxicity grade ≥ 2 were 6.7% (95%CI 4-9%), and 11.3% (95%CI 7.6-15%), with heterogeneity, but with rare cases of toxicity grade 3-5. CONCLUSION EPNI with concomitant MHF-RT provides satisfactory bRFS in the long-term follow-up, with low rates of GU and GI severe toxicities and minimal pelvic and local failure.
Collapse
Affiliation(s)
- Gustavo A Viani
- Ribeirao Preto Medical School, Department of Medical Imagings, Hematology and Oncology of University of São Paulo (FMRP-USP), Ribeirao Preto, Brazil.
| | - Andre G Gouveia
- Radiation Oncology Department, Americas Centro de Oncologia Integrado, Rio de Janeiro, Brazil
| | - Fabio Y Moraes
- Department of Oncology, Division of Radiation Oncology, Kingston General Hospital, Queen's University, Kingston, Canada
| | - Fabio L Cury
- Department of Oncology, Division of Radiation Oncology, McGill University Health Centre, McGill University, Montreal, Canada.
| |
Collapse
|
13
|
Viani GA, Gouveia AG, Bratti VF, Pavoni JF, Sullivan R, Hopman WM, Booth CM, Aggarwal A, Hanna TP, Moraes FY. Prioritising locations for radiotherapy equipment in Brazil: a cross-sectional, population-based study and development of a LINAC shortage index. Lancet Oncol 2022; 23:531-539. [DOI: 10.1016/s1470-2045(22)00123-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 02/17/2022] [Accepted: 02/18/2022] [Indexed: 01/03/2023]
|
14
|
Abstract
OBJECTIVES To provide an overview of the achievements and future research with stereotactic body radiotherapy (SBRT) in prostate cancer. METHODS SBRT publications for prostate cancer were retrieved from the Web of Science and Dimension database. Bibliometric analyses were performed using VOSviewer and Prism graph. Analysis of variance test was used to compare the publication, citation, and the mean citation between specialty journals. Network maps were produced to identify authors' and countries' collaboration clusters. RESULTS Between 2006 and 2020, 574 publications fulfilling the inclusion criteria were identified, and a significant growth trend in publication (P<0.0001) and citation (P=0.001) number was recognized over the period. The United States was the most productive country with 253 (44.2%) articles. The RED Journal had the highest number of publications (14%) and citations (19%). Urology journals published (P=0.01) and cited significantly less than radiation oncology journals (P=0.01). All open access and non-open access number of publications increased over time, with a significant difference between non-open access and open access journals (P<0.0001). Two author clusters were identified, in the United States with the collaboration of Canadian and British authors, and in Italy with the participation of European authors. CONCLUSION The number of publications and citations on SBRT for prostate cancer has grown linearly in the last decades. The United States is the leading country in this research field, and the use of SBRT in oligometastatic disease, reirradiation, and salvage seems to be hot topics in this research field.
Collapse
Affiliation(s)
- Gustavo A Viani
- Department of Medical Imagings, Hematology and Oncology of University of São Paulo (FMRP-USP), Ribeirão Preto Medical School, Ribeirão Preto
| | - Andre G Gouveia
- Radiation Oncology Department, Américas Centro de Oncologia Integrado, Rio de Janeiro, RJ, Brazil
| | | | - Fabio Y Moraes
- Division of Radiation Oncology, Department of Oncology, Kingston General Hospital, Queen's University, Kingston, ON, Canada
| |
Collapse
|
15
|
Viani GA, Gouveia AG, Louie AV, Korzeniowski M, Pavoni JF, Hamamura AC, Moraes FY. Stereotactic body radiotherapy to treat breast cancer oligometastases: A systematic review with meta-analysis. Radiother Oncol 2021; 164:245-250. [PMID: 34624408 DOI: 10.1016/j.radonc.2021.09.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 09/21/2021] [Accepted: 09/27/2021] [Indexed: 12/25/2022]
Abstract
OBJECTIVES Stereotactic ablative radiotherapy (SABR) has been reported to be an effective treatment for oligometastatic disease from different primary cancer sites. Here we assess the effectiveness and safety of SABR for oligometastatic breast cancer patients by performing a meta-analysis. METHODS Following PRISMA and MOOSE guidelines, a systematic review and meta-analysis was performed. Eligible studies were identified on Medline, Embase, Cochrane Library, and annual meetings proceedings from 1990 to June 2021. A meta-regression analysis was performed to assess if there was a correlation between moderator variables and outcomes, and a p-value <0.05 was considered significant. RESULTS Ten studies met criteria for inclusion, comprising 467 patients and 653 treated metastases. The 1- and 2-year local control rates were 97% (95% CI 95-99%), and 90% (95% CI 84-94%), respectively. Overall survival (OS) was 93% (95% CI 89-96%) at 1 year, 81% (95% CI 72-88%) at 2 years. The rate of any grade 2 or 3 toxicity was 4.1 % (95% CI 0.1-5%), and 0.7% (0-1%), respectively. In the meta-regression analysis, only prospective design (p = 0.001) and bone-only metastases (p = 0.01) were significantly associated with better OS. In the subgroup analysis, the OS at 2y were significantly different comparing HER2+, HR+/HER2(-) and triple negative breast cancer 100%, 86% and 32%, p = 0.001. For local control outcomes, hormone receptor status (p = 0.01) was significantly associated on meta-regression analysis. CONCLUSION SABR for oligometastatic breast cancer is safe and associated with high rates of local control. Longer follow-up of existing data and ongoing prospective trials will help further define the role of this management strategy.
Collapse
Affiliation(s)
- Gustavo A Viani
- Ribeirão Preto Medical School, Department of Medical Imagings, Hematology and Oncology of University of São Paulo (FMRP-USP), Ribeirão Preto, Brazil; Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil.
| | - Andre G Gouveia
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil; Radiation Oncology Department - Americas Centro de Oncologia Integrado, Rio de Janeiro, Brazil
| | - Alexander V Louie
- Department of Radiation Oncology, Odette Cancer Center, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Canada
| | - Martin Korzeniowski
- Department of Oncology - Division of Radiation Oncology, Kingston General Hospital, Queen's University, Kingston, Canada
| | - Juliana F Pavoni
- Faculty of Philosophy, Letters and Natural Sciences, University of São Paulo, Ribeirão Preto, Brazil
| | - Ana Carolina Hamamura
- Ribeirão Preto Medical School, Department of Medical Imagings, Hematology and Oncology of University of São Paulo (FMRP-USP), Ribeirão Preto, Brazil
| | - Fabio Y Moraes
- Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil; Department of Oncology - Division of Radiation Oncology, Kingston General Hospital, Queen's University, Kingston, Canada
| |
Collapse
|
16
|
Viani GA, Gouveia AG, Louie AV, Moraes FY. Stereotactic radiosurgery for brain metastases from small cell lung cancer without prior whole-brain radiotherapy: A meta-analysis. Radiother Oncol 2021; 162:45-51. [PMID: 34171453 DOI: 10.1016/j.radonc.2021.06.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 06/16/2021] [Accepted: 06/16/2021] [Indexed: 11/30/2022]
Abstract
OBJECTIVES Assess upfront Stereotactic radiosurgery (SRS) effectiveness for small cell lung cancer (SCLC) brain metastases (BM). Where possible, a comparison with whole-brain radiotherapy (WBRT) was performed. METHODS Following PRISMA and MOOSE guidelines, eligible studies were identified on Medline, Embase, Cochrane Library, and proceedings of annual meetings between inception and July 01, 2020. RESULTS Nine observational studies with 1638 patients were included. The median overall survival (OS) was 8.3 months (95% CI 7.1-9.5 months, I2 = 0%). OS rate at 12 months was 39% (95% CI 31-44%, I2 = 0%). The relative risk between SRS and WBRT for the OS at 12 months was 1.33 (95% CI 1.13-1.51, P = 0.0001). The projected OS for 6, 12, 18- and 24-months comparing SRS with WBRT was 67% vs. 57%, 39% vs. 29%, 22% vs. 15% and 15% vs 9%, favoring SRS (P < 0.001). The LC rate at 12 months was 93% (95% CI 91-94%, I2 = 0%). The distant brain failure rate (DBFR) at 12 months was 41% (95% CI 33-48%, I2 = 52%, P = 0.08). The SRS or WBRT as salvage treatment after upfront SRS was 32% and 19%, respectively. The freedom from neurologic death at 12 months was 87% (95% CI 84-89%). CONCLUSION Based on the pooling of a large sample of retrospective studies our meta-analysis suggests that for high selected SCLC patients with limited BM upfront SRS produces favorable lesion control and survival outcomes. These findings support the design of randomized clinical trial to confirm the role of SRS in this clinical scenario.
Collapse
Affiliation(s)
- G A Viani
- Ribeirão Preto Medical School, Department of Medical Imagings, Hematology and Oncology of University of São Paulo (FMRP-USP), Brazil.
| | - A G Gouveia
- Radiation Oncology Department - Americas Centro de Oncologia Integrado, Rio de Janeiro, Brazil
| | - A V Louie
- Sunnybrook Health Sciences Centre, Toronto, Canada
| | - F Y Moraes
- Department of Oncology - Division of Radiation Oncology, Kingston General Hospital, Queen's University, Kingston, Canada
| |
Collapse
|
17
|
Rasmussen L, de Labio RW, Viani GA, Chen E, Villares J, Bertolucci PH, Minett TS, Turecki G, Cecyre D, Drigo SA, Smith MC, Payao SLM. Differential Expression of Ribosomal Genes in Brain and Blood of Alzheimer's Disease Patients. Curr Alzheimer Res 2016; 12:984-9. [PMID: 26502820 DOI: 10.2174/1567205012666151027124017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2014] [Revised: 04/06/2015] [Accepted: 06/01/2015] [Indexed: 11/22/2022]
Abstract
Changes in rRNA and rDNA expression have been associated with cellular and organism aging and have been linked to Alzheimer's disease (AD) pathogenesis. In this study, we investigated the mRNA expression of ribosomal genes (28S/18S) and β-amyloid precursor protein (APP) in different post mortem brain tissue regions (the entorhinal and auditory cortices and the hippocampus) of AD patients and elderly control subjects and also evaluated the extent of expression in peripheral blood from young, healthy, elderly, and Alzheimer's disease patients in order to investigate whether these individuals experienced the effects of aging. The comparative threshold cycle (CT) method via Real Time Polymerase Chain Reaction and the Polymerase Chain Reaction- Restriction Fragment Length Polymorphism (PCR-RFLP) were used to analyze gene expression and the Apolipoprotein E (APOE) genotype, respectively. When the brain areas were analyzed collectively, we observed a significant decrease in APP expression and a significant increase in levels of mRNA of 18S and 28S in Alzheimer's disease patients compared to healthy elderly individuals. Furthermore, there was a significant upregulation of 28SrRNA in the entorhinal cortex and hippocampus, but not in the auditory cortex of patients with AD. On the other hand, tests of blood samples verified a decreased expression of 28S rRNA in patients with AD. These results support the hypothesis that changes in rRNA are present in AD patients, are tissue-specific, and seem to occur independently and differently in each tissue. However, the next challenge is to discover the mechanisms responsible for the differences in expression observed in the blood and the brain in both healthy elderly individuals and Alzheimer's disease patients, as well as the impact of these genes on AD pathogenesis.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Spencer L M Payao
- Genetics Laboratory, Hematology Center, Marilia Schoolf of Medicine (FAMEMA) Rua Lourival Freire, 240, Bairro Fragata, CEP 17519-050, Marília, Sao Paulo, Brazil.
| |
Collapse
|
18
|
Caleman Neto A, Rasmussen LT, de Labio RW, de Queiroz VF, Smith MDA, Viani GA, Payão SL. Gene polymorphism of interleukin 1 and 8 in chronic gastritis patients infected with Helicobacter pylori. J Venom Anim Toxins Incl Trop Dis 2014; 20:17. [PMID: 24803922 PMCID: PMC4011515 DOI: 10.1186/1678-9199-20-17] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Accepted: 04/02/2014] [Indexed: 12/17/2022] Open
Abstract
Background Epidemiological investigations have indicated that Helicobacter pylori induces inflammation in the gastric mucosa regulated by several interleukins. The genes IL1B and IL8 are suggested as key factors in determining the risk of gastritis. The aim of this paper was to evaluate the association of gene polymorphism of interleukin-1 and interleukin-8 with chronic gastrits in H. pylori infected patients. A total of 60 patients underwent endoscopic procedure. Biopsy samples were collected for urease test, histopathological and molecular exams. The DNA of theses samples was extracted for detection of H. pylori and analysis of the genes mentioned above. Patients with gastritis had a higher frequency of H. pylori-positive samples. Results H. pylori was detected in 30/60 patients (50%) by PCR. As for polymorphism of interleukin 8 (-251) gene we observed a statistical difference when analyzed TA (p = 0.039) and TT (p = 0.047) genotypes. In the IL1B31 there was a statistical difference in TT (p = 0.01) genotype and in the IL1B-511 there wasn’t any statistical difference. Conclusion Our results suggest a strong correlation between the presence of chronic gastritis and infection by H. pylori and that IL1B-31TT and IL8-251TT genotypes appear to act as protective factors against H. pylori infection while IL8-251TA genotype may comprise a risk factor for infection with this bacterium.
Collapse
Affiliation(s)
- Agostinho Caleman Neto
- Department of Genetics, FAMEMA Blood Center, Marília Medical School (FAMEMA), Marília, São Paulo State, Brazil
| | | | - Roger W de Labio
- Department of Genetics, FAMEMA Blood Center, Marília Medical School (FAMEMA), Marília, São Paulo State, Brazil
| | - Valdeir F de Queiroz
- Department of Digestive System Surgery, Marília Medical School (FAMEMA), Marília, São Paulo State, Brazil
| | - Marília de Ac Smith
- Department of Morphology, Federal University of São Paulo (UNIFESP), São Paulo, São Paulo State, Brazil
| | - Gustavo A Viani
- Department of Radiotherapy and Oncology, Marília Medical School (FAMEMA), Marília, São Paulo State, Brazil
| | - Spencer Lm Payão
- Department of Genetics, FAMEMA Blood Center, Marília Medical School (FAMEMA), Marília, São Paulo State, Brazil ; Sacred Heart University (USC), Bauru, São Paulo State, Brazil ; Laboratório de Genética, Hemocentro, FAMEMA, Rua Lourival Freire, 240, Bairro Fragata, Marília, São Paulo CEP 17519-050, Brazil
| |
Collapse
|
19
|
Venerando R, Rasmussen LT, de Labio RW, Gatti LL, Francisco O, Viani GA, Rivera LML, Payão SLM. Relationship between Helicobacter pylori detection and an increased risk of infection in childhood. J Venom Anim Toxins Incl Trop Dis 2012. [DOI: 10.1590/s1678-91992012000400004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
|
20
|
Viani GA, Manta GB, Stefano EJ, de Fendi LI. Brachytherapy for cervix cancer: low-dose rate or high-dose rate brachytherapy - a meta-analysis of clinical trials. J Exp Clin Cancer Res 2009; 28:47. [PMID: 19344527 PMCID: PMC2673206 DOI: 10.1186/1756-9966-28-47] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2009] [Accepted: 04/05/2009] [Indexed: 11/17/2022] Open
Abstract
Background The literature supporting high-dose rate brachytherapy (HDR) in the treatment of cervical carcinoma derives primarily from retrospective series. However, controversy still persists regarding the efficacy and safety of HDR brachytherapy compared to low-dose rate (LDR) brachytherapy, in particular, due to inadequate tumor coverage for stage III patients. Whether LDR or HDR brachytherapy produces better results for these patients in terms of survival rate, local control rate and the treatment complications remain controversial. Methods A meta-analysis of RCT was performed comparing LDR to HDR brachytherapy for cervix cancer treated for radiotherapy alone. The MEDLINE, EMBASE, CANCERLIT and Cochrane Library databases, as well as abstracts published in the annual proceedings were systematically searched. We assessed methodological quality for each outcome by grading the quality of evidence using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) methodology. We used "recommend" for strong recommendations, and "suggest" for weak recommendations. Results Pooled results from five randomized trials (2,065 patients) of HDR brachytherapy in cervix cancer showed no significant increase of mortality (p = 0.52), local recurrence (p = 0.68), or late complications (rectal; p = 0.7, bladder; p = 0.95 or small intestine; p = 0.06) rates as compared to LDR brachytherapy. In the subgroup analysis no difference was observed for overall mortality and local recurrence in patients with clinical stages I, II and III. The quality of evidence was low for mortality and local recurrence in patients with clinical stage I, and moderate for other clinical stages. Conclusion Our meta-analysis shows that there are no differences between HDR and LDR for overall survival, local recurrence and late complications for clinical stages I, II and III. By means of the GRADE system, we recommend the use of HDR for all clinical stages of cervix cancer.
Collapse
Affiliation(s)
- Gustavo A Viani
- Radiation Oncology Department at Marilia School of Medicine, São Paulo, Brazil.
| | | | | | | |
Collapse
|
21
|
Viani GA, Stefano EJ, Afonso SL, De Fendi LI. Postoperative Strontium-90 Brachytherapy in the Prevention of Keloids: Results and Prognostic Factors. Int J Radiat Oncol Biol Phys 2009; 73:1510-6. [DOI: 10.1016/j.ijrobp.2008.07.065] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2008] [Revised: 06/14/2008] [Accepted: 07/07/2008] [Indexed: 10/21/2022]
|
22
|
Viani GA, Novaes PE, Jacinto AA, Antonelli CB, Pellizzon ACA, Saito EY, Salvajoli JV. High-dose-rate brachytherapy for soft tissue sarcoma in children: a single institution experience. Radiat Oncol 2008; 3:9. [PMID: 18423047 PMCID: PMC2359754 DOI: 10.1186/1748-717x-3-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2007] [Accepted: 04/19/2008] [Indexed: 11/10/2022] Open
Abstract
Purpose To report our experience treating soft tissue sarcoma (STS) with high dose rate brachytherapy alone (HBRT) or in combination with external beam radiotherapy (EBRT) in pediatric patients. Methods and materials Eighteen patients, median age 11 years (range 2 – 16 years) with grade 2–3 STS were treated with HBRT using Ir-192 in a interstitial (n = 14) or intracavitary implant (n = 4). Eight patients were treated with HBRT alone; the remaining 10 were treated with a combination of HBRT and EBRT. Results After a median follow-up of 79.5 months (range 12 – 159), 14 patients were alive and without evidence of disease (5-year overall survival rate 84.5%). There were no local or regional failures in the group treated with HBRT alone. One patient developed distant metastases at 14 months and expired after 17 months. In the combined HBRT and EBRT group, there was 1 local failure (22 months), and 3 patients developed pulmonary metastatic disease 18, 38 and 48 months after diagnosis and no these patients were alive at the time of this report. The overall local control to HBRT alone and HBRT plus EBRT were 100 and 90%, respectively. The acute affects most common were local erythema and wound dehiscence in 6 (33%) and 4 (22%) patients. Late effects were observed in 3 patients (16.5%). Conclusion Excellent local control with tolerable side effects have been observed in a small group of paediatric patients with STS treated by HBRT alone or in combination with EBRT.
Collapse
Affiliation(s)
- Gustavo A Viani
- Radiation Oncology Department, Hospital do Cancer A,C, Camargo, Sao Paulo, Brazil.
| | | | | | | | | | | | | |
Collapse
|
23
|
Roque MT, Saito M, De Souza AAS, Viani GA, Stefano EJ, Mendonca AP, Gomes DO. ADJUVANT RADIOTHERAPY FOR PATHOLOGICALLY ADVANCED PROSTATE CANCER: META-ANALYSES OF RANDOMIZED CLINICAL TRIAL. J Urol 2008. [DOI: 10.1016/s0022-5347(08)60532-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
24
|
Viani GA, Afonso SL, Stefano EJ, De Fendi LI, Soares FV. Adjuvant trastuzumab in the treatment of her-2-positive early breast cancer: a meta-analysis of published randomized trials. BMC Cancer 2007; 7:153. [PMID: 17686164 PMCID: PMC1959236 DOI: 10.1186/1471-2407-7-153] [Citation(s) in RCA: 280] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2007] [Accepted: 08/08/2007] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Breast cancer is the most common cancer in women in the U.S. and Western Europe. Amplification of the her-2/neu gene occurs in approximately 25% of invasive ductal carcinomas of the breast. The first HER-2/neu-targeted approach to reach the clinic was trastuzumab, a humanized monoclonal antibody directed against the extracellular domain of the HER-2/neu protein. Trastuzumab therapy prolongs the survival of patients with metastático HER-2/neu-overexpressing breast cancer when combined with chemotherapy and has recently been demonstrated to lead to dramatic improvements in disease-free survival when used in the adjuvant therapy setting in combination with or following chemotherapy. Here, we performed a meta-analysis of completed clinical trials of adjuvant trastuzumab in the adjuvant setting. Survival, recurrence, brain metastases, cardiotoxicity and directions for future research are discussed. METHODS A meta-analysis of randomized controlled trials (RCT) was performed comparing adjuvant trastuzumab treatment for HER2-positive early breast cancer (EBC) to observation. The MEDLINE, EMBASE, CANCERLIT and Cochrane Library databases, and abstracts published in the annual proceedings were systematically searched for evidence. Relevant reports were reviewed by two reviewers independently and the references from these reports were searched for additional trials, using guidelines set by QUOROM statement criteria. RESULTS Pooled results from that five randomized trials of adjuvant Trastuzumab showed a significant reduction of mortality (p < 0.00001), recurrence (p < 0.00001), metastases rates (p < 0.00001) and second tumors other than breast cancer (p = 0.007) as compared to no adjuvant Trastuzumab patients. There were more grade III or IV cardiac toxicity after trastuzumab (203/4555 = 4.5%) versus no trastuzumab (86/4562 = 1.8%). The likelihood of cardiac toxicity was 2.45-fold higher (95% CI 1.89 - 3.16) in trastuzumab arms, however that result was associated with heterogeneity. The likelihood of brain metastases was 1.82-fold higher (95% CI 1.16 - 2.85) in patients who received trastuzumab. CONCLUSION The results from this meta-analysis are sufficiently compelling to consider 1 year of adjuvant trastuzumab treatment for women with HER-2-positive EBC based on the risk: benefit ratio demonstrated in these studies. Adequate assessment of HER-2/neu status is critical, and careful cardiac monitoring is warranted because of cardiac toxicity. Clinical trials should be designed to answer unsolved questions.
Collapse
Affiliation(s)
- Gustavo A Viani
- Department of Radiation Oncology, Faculdade de Medicina de Marília, Faculty of Medicine of Marília (FAMEMA), Marília, São Paulo, Brazil
| | - Sergio L Afonso
- Department of Radiation Oncology, Faculdade de Medicina de Marília, Faculty of Medicine of Marília (FAMEMA), Marília, São Paulo, Brazil
| | - Eduardo J Stefano
- Department of Radiation Oncology, Faculdade de Medicina de Marília, Faculty of Medicine of Marília (FAMEMA), Marília, São Paulo, Brazil
| | - Ligia I De Fendi
- Department of Radiation Oncology, Faculdade de Medicina de Marília, Faculty of Medicine of Marília (FAMEMA), Marília, São Paulo, Brazil
| | - Francisco V Soares
- Department of Radiation Oncology, Faculdade de Medicina de Marília, Faculty of Medicine of Marília (FAMEMA), Marília, São Paulo, Brazil
| |
Collapse
|
25
|
Viani GA, Stefano EJ, Afonso SL, De Fendi LI, Soares FV, Leon PG, Guimarães FS. Breast-conserving surgery with or without radiotherapy in women with ductal carcinoma in situ: a meta-analysis of randomized trials. Radiat Oncol 2007; 2:28. [PMID: 17683529 PMCID: PMC1952067 DOI: 10.1186/1748-717x-2-28] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2007] [Accepted: 08/02/2007] [Indexed: 01/02/2023] Open
Abstract
Background To investigate whether Radiation therapy (RT) should follow breast conserving surgery in women with ductal carcinoma in situ from breast cancer (DCIS) with objective of decreased mortality, invasive or non invasive recurrence, distant metastases and contralateral breast cancer rates. We have done a meta-analysis of these results to give a more balanced view of the total evidence and to increase statistical precision. Methods A meta-analysis of randomized controlled trials (RCT) was performed comparing RT treatment for DCIS of breast cancer to observation. The MEDLINE, EMBASE, CANCERLIT, Cochrane Library databases, Trial registers, bibliographic databases, and recent issues of relevant journals were searched. Relevant reports were reviewed by two reviewers independently and the references from these reports were searched for additional trials, using guidelines set by QUOROM statement criteria. Results The reviewers identified four large RCTs, yielding 3665 patients. Pooled results from this four randomized trials of adjuvant radiotherapy showed a significant reduction of invasive and DCIS ipsilateral breast cancer with odds ratio (OR) of 0.40 (95% CI 0.33 – 0.60, p < 0.00001) and 0.40 (95% CI 0.31 – 0.53, p < 0.00001), respectively. There was not difference in distant metastases (OR = 1.04, 95% CI 0.57–1.91, p = 0.38) and death rates (OR = 1.08, 95%CI 0.65 – 1.78, p = 0.45) between the two arms. There was more contralateral breast cancer after adjuvant RT (66/1711 = 3.85%) versus observation (49/1954 = 2.5%). The likelihood of contralateral breast cancer was 1.53-fold higher (95% CI 1.05 – 2.24, p = 0.03) in radiotherapy arms. Conclusion The conclusion from our meta-analysis is that the addition of radiation therapy to lumpectomy results in an approximately 60% reduction in breast cancer recurrence, no benefit for survival or distant metastases compared to excision alone. Patients with high-grade DCIS lesions and positive margins benefited most from the addition of radiation therapy. It is not yet clear which patients can be successfully treated with lumpectomy alone; until further prospective studies answer this question, radiation should be recommended after lumpectomy for all patients without contraindications.
Collapse
Affiliation(s)
- Gustavo A Viani
- Department of Radiation Oncology, Faculty of Medicine of Marília (FAMEMA), Marília, São Paulo, Brazil
| | - Eduardo J Stefano
- Department of Radiation Oncology, Faculty of Medicine of Marília (FAMEMA), Marília, São Paulo, Brazil
| | - Sérgio L Afonso
- Department of Radiation Oncology, Faculty of Medicine of Marília (FAMEMA), Marília, São Paulo, Brazil
| | - Lígia I De Fendi
- Department of Radiation Oncology, Faculty of Medicine of Marília (FAMEMA), Marília, São Paulo, Brazil
| | - Francisco V Soares
- Department of Radiation Oncology, Faculty of Medicine of Marília (FAMEMA), Marília, São Paulo, Brazil
| | - Paola G Leon
- Department of Radiation Oncology, Instituto Nacional de Enfermedades Neoplásicas, Lima, Perú
| | - Flavio S Guimarães
- Department of Radiation Oncology, Hospital A.C.Camargo, São Paulo, Brazil
| |
Collapse
|
26
|
Viani GA, Castilho MS, Salvajoli JV, Pellizzon ACA, Novaes PE, Guimarães FS, Conte MA, Fogaroli RC. Whole brain radiotherapy for brain metastases from breast cancer: estimation of survival using two stratification systems. BMC Cancer 2007; 7:53. [PMID: 17386108 PMCID: PMC1851018 DOI: 10.1186/1471-2407-7-53] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2006] [Accepted: 03/26/2007] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Brain metastases (BM) are the most common form of intracranial cancer. The incidence of BM seems to have increased over the past decade. Recursive partitioning analysis (RPA) of data from three Radiation Therapy Oncology Group (RTOG) trials (1200 patients) has allowed three prognostic groups to be identified. More recently a simplified stratification system that uses the evaluation of three main prognostics factors for radiosurgery in BM was developed. METHODS To analyze the overall survival rate (OS), prognostic factors affecting outcomes and to estimate the potential improvement in OS for patients with BM from breast cancer, stratified by RPA class and brain metastases score (BS-BM). From January 1996 to December 2004, 174 medical records of patients with diagnosis of BM from breast cancer, who received WBRT were analyzed. The surgery followed by WBRT was used in 15.5% of patients and 84.5% of others patients were submitted at WBRT alone; 108 patients (62.1%) received the fractionation schedule of 30 Gy in 10 fractions. Solitary BM was present in 37.9 % of patients. The prognostic factors evaluated for OS were: age, Karnofsky Performance Status (KPS), number of lesions, localization of lesions, neurosurgery, chemotherapy, absence extracranial disease, RPA class, BS-BM and radiation doses and fractionation. RESULTS The OS in 1, 2 and 3 years was 33.4 %, 16.7%, and 8.8 %, respectively. The RPA class analysis showed strong relation with OS (p < 0.0001). The median survival time by RPA class in months was: class I 11.7, class II 6.2 and class III 3.0. The significant prognostic factors associated with better OS were: higher KPS (p < 0.0001), neurosurgery (P < 0.0001), single metastases (p = 0.003), BS-BM (p < 0.0001), control primary tumor (p = 0.002) and absence of extracranial metastases (p = 0.001). In multivariate analysis, the factors associated positively with OS were: neurosurgery (p < 0.0001), absence of extracranial metastases (p <0.0001) and RPA class I (p < 0.0001). CONCLUSION Our data suggests that patients with BM from breast cancer classified as RPA class I may be effectively treated with local resection followed by WBRT, mainly in those patients with single BM, higher KPS and cranial extra disease controlled. RPA class was shown to be the most reliable indicators of survival.
Collapse
Affiliation(s)
- Gustavo A Viani
- Radiation Oncology Department, Hospital do Cancer, São Paulo, Brazil
| | - Marcus S Castilho
- Radiation Oncology Department, Hospital do Cancer, São Paulo, Brazil
| | - João V Salvajoli
- Radiation Oncology Department, Hospital do Cancer, São Paulo, Brazil
| | | | - Paulo E Novaes
- Radiation Oncology Department, Hospital do Cancer, São Paulo, Brazil
| | | | - Maria A Conte
- Radiation Oncology Department, Hospital do Cancer, São Paulo, Brazil
| | | |
Collapse
|
27
|
Jacinto AA, Fede ABS, Fagundes LA, Salvajoli JV, Castilho MS, Viani GA, Fogaroli RC, Novaes PERS, Pellizzon ACA, Maia MAC, Ferrigno R. Salvage radiotherapy for biochemical relapse after complete PSA response following radical prostatectomy: outcome and prognostic factors for patients who have never received hormonal therapy. Radiat Oncol 2007; 2:8. [PMID: 17316430 PMCID: PMC1820601 DOI: 10.1186/1748-717x-2-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2006] [Accepted: 02/22/2007] [Indexed: 11/23/2022] Open
Abstract
Objectives To evaluate the results of salvage conformal radiation therapy (3DC-EBRT) for patients submitted to radical prostatectomy (RP) who have achieved complete PSA response and who have never been treated with hormonal therapy (HT). To present the results of biochemical control, a period free from hormonal therapy and factors related to its prognosis. Materials and methods from August 2002 to December 2004, 43 prostate cancer patients submitted to RP presented biochemical failure after achieving a PSA < 0.2 ng/ml. They have never received HT and were submitted to salvage 3DC-EBRT. Median age was 62 years, median preoperative PSA was 8.8 ng/ml, median Gleason Score was 7. Any PSA rise above 0.2 was defined as biochemical failure after surgery. Median 3DC-EBRT dose was 70 Gy, biochemical failure after EBRT was defined as 3 consecutive rises in PSA or a single rise enough to trigger HT. Results 3-year biochemical non-evidence of disease (BNED) was 71%. PSA doubling time lower than 4 months (p = 0.01) and time from recurrence to salvage EBRT (p = 0.04) were associated with worse chance of biochemical control. Biochemical control of 76% was achieved when RT had been introduced with a PSA lower than 1 ng/ml vs. 48% with a PSA higher than 1 (p = 0.19). Late toxicity was acceptable. Conclusion 70% of biochemical control in 3 years can be achieved with salvage radiotherapy in selected patients. The importance of PSADT was confirmed in this study and radiotherapy should be started as early as possible. Longer follow up is necessary, but it is possible to conclude that a long interval free from hormonal therapy was achieved with low rate of toxicity avoiding or at least delaying several important adverse effects related to hormonal treatment.
Collapse
Affiliation(s)
- Alexandre A Jacinto
- Department of Radiation Oncology, Hospital do Cancer A C Camargo, São Paulo, Brazil
| | - Angelo BS Fede
- Department of Radiation Oncology, Hospital do Cancer A C Camargo, São Paulo, Brazil
| | - Lívia A Fagundes
- Department of Radiation Oncology, Hospital do Cancer A C Camargo, São Paulo, Brazil
| | - João V Salvajoli
- Department of Radiation Oncology, Hospital do Cancer A C Camargo, São Paulo, Brazil
| | - Marcus S Castilho
- Department of Radiation Oncology, Hospital do Cancer A C Camargo, São Paulo, Brazil
| | - Gustavo A Viani
- Department of Radiation Oncology, Hospital do Cancer A C Camargo, São Paulo, Brazil
| | - Ricardo C Fogaroli
- Department of Radiation Oncology, Hospital do Cancer A C Camargo, São Paulo, Brazil
| | - Paulo ERS Novaes
- Department of Radiation Oncology, Hospital do Cancer A C Camargo, São Paulo, Brazil
| | | | - Maria AC Maia
- Department of Radiation Oncology, Hospital do Cancer A C Camargo, São Paulo, Brazil
| | - Robson Ferrigno
- Department of Radiation Oncology, Hospital do Cancer A C Camargo, São Paulo, Brazil
| |
Collapse
|
28
|
Jacinto AA, Castilho MS, Novaes PERS, Novick PR, Viani GA, Salvajoli JV, Ferrigno R, Pellizzon ACA, Lima SSS, Maia MAC, Fogaroli RC. Preoperative external beam radiotherapy and reduced dose brachytherapy for carcinoma of the cervix: survival and pathological response. Radiat Oncol 2007; 2:9. [PMID: 17316435 PMCID: PMC1817645 DOI: 10.1186/1748-717x-2-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2006] [Accepted: 02/22/2007] [Indexed: 11/17/2022] Open
Abstract
Purpose To evaluate the pathologic response of cervical carcinoma to external beam radiotherapy (EBRT) and high dose rate brachytherapy (HDRB) and outcome. Materials and methods Between 1992 and 2001, 67 patients with cervical carcinoma were submitted to preoperative radiotherapy. Sixty-five patients were stage IIb. Preoperative treatment included 45 Gy EBRT and 12 Gy HDRB. Patients were submitted to surgery after a mean time of 82 days. Lymphadenectomy was performed in 81% of patients. Eleven patients with residual cervix residual disease on pathological specimen were submitted to 2 additional insertions of HDRB. Results median follow up was 72 months. Five-year cause specific survival was 75%, overall survival 65%, local control 95%. Complete pelvic pathological response was seen in 40%. Surgery performed later than 80 days was associated with pathological response. Pelvic nodal involvement was found in 12%. Complete pelvic pathological response and negative lymphnodes were associated with better outcome (p = .03 and p = .005). Late grade 3 and 4 urinary and intestinal adverse effects were seen in 12 and 2% of patients. Conclusion Time allowed between RT and surgery correlated with pathological response. Pelvic pathological response was associated with improved outcome. Postoperative additional HDRB did not improve therapeutic results. Treatment was well tolerated.
Collapse
Affiliation(s)
- Alexandre A Jacinto
- Department of Radiation Oncology, Hospital do Cancer A C Camargo, São Paulo, Brazil
| | - Marcus S Castilho
- Department of Radiation Oncology, Hospital do Cancer A C Camargo, São Paulo, Brazil
| | - Paulo ERS Novaes
- Department of Radiation Oncology, Hospital do Cancer A C Camargo, São Paulo, Brazil
| | - Pablo R Novick
- Department of Gynecology Oncology, Hospital do Cancer A C Camargo, São Paulo, Brazil
| | - Gustavo A Viani
- Department of Radiation Oncology, Hospital do Cancer A C Camargo, São Paulo, Brazil
| | - João V Salvajoli
- Department of Radiation Oncology, Hospital do Cancer A C Camargo, São Paulo, Brazil
| | - Robson Ferrigno
- Department of Radiation Oncology, Hospital do Cancer A C Camargo, São Paulo, Brazil
| | | | - Stella SS Lima
- Department of Radiation Oncology, Hospital do Cancer A C Camargo, São Paulo, Brazil
| | - Maria AC Maia
- Department of Radiation Oncology, Hospital do Cancer A C Camargo, São Paulo, Brazil
| | - Ricardo C Fogaroli
- Department of Radiation Oncology, Hospital do Cancer A C Camargo, São Paulo, Brazil
| |
Collapse
|
29
|
Castilho MS, Jacinto AA, Viani GA, Campana A, Carvalho J, Ferrigno R, Novaes PERS, Fogaroli RC, Salvajoli JV. Intensity Modulated Radiotherapy (IMRT) in the postoperative treatment of an adenocarcinoma of the endometrium complicated by a pelvic kidney. Radiat Oncol 2006; 1:44. [PMID: 17116263 PMCID: PMC1660561 DOI: 10.1186/1748-717x-1-44] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2006] [Accepted: 11/20/2006] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Pelvic Radiotherapy (RT) as a postoperative treatment for endometrial cancer improves local regional control. Brachytherapy also improves vaginal control. Both treatments imply significant side effects that a fine RT technique can help avoiding. Intensity Modulated RT (IMRT) enables the treatment of the target volume while protecting normal tissue. It therefore reduces the incidence and severity of side effects. CASE We report on a 50 year-old patient with a serous-papiliferous adenocarcinoma of the uterus who was submitted to surgical treatment without lymph node sampling followed by Brachytherapy, and Chemotherapy. The patient had a pelvic kidney, and was therefore treated with IMRT.So far, the patient has been free from relapse and with normal kidney function. CONCLUSION IMRT is a valid technique to prevent the kidney from radiation damage.
Collapse
Affiliation(s)
- Marcus S Castilho
- Department of Radiation Oncology, Hospital do Câncer A C Camargo, São Paulo, Brazil
| | - Alexandre A Jacinto
- Department of Radiation Oncology, Hospital do Câncer A C Camargo, São Paulo, Brazil
| | - Gustavo A Viani
- Department of Radiation Oncology, Hospital do Câncer A C Camargo, São Paulo, Brazil
| | - Andre Campana
- Department of Radiation Oncology, Hospital do Câncer A C Camargo, São Paulo, Brazil
| | - Juliana Carvalho
- Department of Radiation Oncology, Hospital do Câncer A C Camargo, São Paulo, Brazil
| | - Robson Ferrigno
- Department of Radiation Oncology, Hospital do Câncer A C Camargo, São Paulo, Brazil
| | - Paulo ERS Novaes
- Department of Radiation Oncology, Hospital do Câncer A C Camargo, São Paulo, Brazil
| | - Ricardo C Fogaroli
- Department of Radiation Oncology, Hospital do Câncer A C Camargo, São Paulo, Brazil
| | - Joao V Salvajoli
- Department of Radiation Oncology, Hospital do Câncer A C Camargo, São Paulo, Brazil
| |
Collapse
|
30
|
Viani GA, Castilho MS, Novaes PE, Antonelli CG, Ferrigno R, Pellizzon CA, Fogaroli RC, Conte MA, Salvajoli JV. Chemotherapy followed by low dose radiotherapy in childhood Hodgkin's disease: retrospective analysis of results and prognostic factors. Radiat Oncol 2006; 1:38. [PMID: 17014708 PMCID: PMC1592540 DOI: 10.1186/1748-717x-1-38] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2006] [Accepted: 10/02/2006] [Indexed: 11/16/2022] Open
Abstract
Purpose To report the treatment results and prognostic factors of childhood patients with Hodgkin's disease treated with chemotherapy (CT) followed by low dose radiotherapy (RT). Patients and methods This retrospective series analyzed 166 patients under 18 years old, treated from January 1985 to December 2003. Median age was 10 years (range 2–18). The male to female ratio was 2,3 : 1. Lymphonode enlargement was the most frequent clinical manifestation (68%), and the time of symptom duration was less than 6 months in 55% of the patients. In histological analysis Nodular Sclerosis was the most prevalent type (48%) followed by Mixed Celularity (34.6%). The staging group according Ann Arbor classification was: I (11.7%), II (36.4%), III (32.1%) and IV (19.8%). The standard treatment consisted of chemotherapy multiple drug combination according the period of treatment protocols vigent: ABVD in 39% (n-65) of the cases, by VEEP in 13 %(n-22), MOPP in 13 %(n-22), OPPA-13 %(n-22) and ABVD/OPPA in 22 %(n-33). Radiotherapy was device to all areas of initial presentation of disease. Dose less or equal than 21 Gy was used in 90.2% of patients with most part of them (90%) by involved field (IFRT) or mantle field. Results The OS and EFS in 10 years were 89% and 87%. Survival according to clinical stage as 94.7%, 91.3%, 82.3% and 71% for stages I to IV(p = 0,005). The OS was in 91.3% of patients who received RT and in 72.6% of patients who did not (p = 0,003). Multivariate analysis showed presence of B symptoms, no radiotherapy and advanced clinical stage to be associated with a worse prognosis. Conclusion This data demonstrating the importance of RT consolidation with low dose and reduced volume, in all clinical stage of childhood HD, producing satisfactory ten years OS and EFS. As the disease is highly curable, any data of long term follow-up should be presented in order to better direct therapy, and to identify groups of patients who would not benefit from radiation treatment.
Collapse
Affiliation(s)
- Gustavo A Viani
- Department of Radiation Oncology Hospital do Câncer, SaoPaulo, Brazil
| | - Marcus S Castilho
- Department of Radiation Oncology Hospital do Câncer, SaoPaulo, Brazil
| | - Paulo E Novaes
- Department of Radiation Oncology Hospital do Câncer, SaoPaulo, Brazil
| | - Celia G Antonelli
- Department of Pediatric Oncology Hospital do Câncer, Sao Paulo, Brazil
| | - Robson Ferrigno
- Department of Radiation Oncology Hospital do Câncer, SaoPaulo, Brazil
| | | | | | - Maria A Conte
- Department of Radiation Oncology Hospital do Câncer, SaoPaulo, Brazil
| | - Joao V Salvajoli
- Department of Radiation Oncology Hospital do Câncer, SaoPaulo, Brazil
| |
Collapse
|
31
|
Viani GA, Patia BF, Pellizzon AC, De Melo MD, Novaes PE, Fogaroli RC, Conte MA, Salvajoli JV. High-risk surgical stage 1 endometrial cancer: analysis of treatment outcome. Radiat Oncol 2006; 1:24. [PMID: 16887018 PMCID: PMC1555589 DOI: 10.1186/1748-717x-1-24] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2006] [Accepted: 08/03/2006] [Indexed: 11/10/2022] Open
Abstract
PURPOSE To report the relapse and survival rates associated to treatment for patients with stage IC, grade 2 or grade 3 and IB grade 3 diseases considered high risk patients group for relapse. MATERIALS AND METHODS From January 1993 to December 2003, 106 patients with endometrial cancer stage I were managed surgically in our institution. Based on data from the medical records, 106 patients with epithelial endometrial cancer met the following inclusion criteria: stage IC grade 2 or 3 and IB grade 3 with or without lymphovascular invasion. Staging was defined according to the FIGO surgical staging system. Postoperative adjuvant radiotherapy consisted of external beam pelvic radiation, vaginal brachytherapy alone or both. The median age was 65 years (range, 32-83 years), lymph node dissection was performed in 45 patients (42.5%) and 14 patients (13.2%) received vaginal brachytherapy only, and 92 (86.8%) received combined vaginal brachytherapy and external beam radiotherapy. The median dose of external beam radiotherapy administered to the pelvis was 4500 cGy (range 4000-5040). The median dose to vaginal surface was 2400 cGy (range 2000-3000). Predominant pathological stage and histological grade were IC (73.6%) and grade 3 (51.9%). The lymphovascular invasion was present in 33 patients (31.1%) and pathological stage IC grade 2 was most common (48. 1%) combination of risk factors in this group. RESULTS With a follow up median of 58.3 months (range 12.8-154), five year overall survival and event free survival were 78.5% and 72.4%, respectively. Locoregional control in five year was 92.4%. Prognostic factors related with survival in univariate analyses were: lymphadenectomy (p = 0.045), lymphovascular invasion (p = 0.047) and initial failure site (p < 0.0001). In multivariate analyses the initial failure in distant sites (p < 0.0001) was the only factor associated with poor survival. Acute and chronic gastrointestinal and genitourinary toxicity grades 3 were not observed. CONCLUSION In conclusion, our results showed that the stage IC, grade 2, 3 and IB grade 3 endometrial cancer was associated with significantly increased risk of distant relapse and endometrial carcinoma-related death independently of salvage treatment modality.
Collapse
Affiliation(s)
- Gustavo A Viani
- Department of Radiation Oncology Hospital do Cancer, Sao Paulo, Brazil
| | - Barbara F Patia
- Department of Radiation Oncology Hospital do Cancer, Sao Paulo, Brazil
| | | | - Marcel D De Melo
- Department of Radiation Oncology Hospital do Cancer, Sao Paulo, Brazil
| | - Paulo E Novaes
- Department of Radiation Oncology Hospital do Cancer, Sao Paulo, Brazil
| | | | - Maria A Conte
- Department of Radiation Oncology Hospital do Cancer, Sao Paulo, Brazil
| | - Joao V Salvajoli
- Department of Radiation Oncology Hospital do Cancer, Sao Paulo, Brazil
| |
Collapse
|
32
|
Saito EY, Viani GA, Ferrigno R, Nakamura RA, Novaes PE, Pellizzon CA, Fogaroli RC, Conte MA, Salvajoli JV. Whole brain radiation therapy in management of brain metastasis: results and prognostic factors. Radiat Oncol 2006; 1:20. [PMID: 16808850 PMCID: PMC1526744 DOI: 10.1186/1748-717x-1-20] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2006] [Accepted: 06/29/2006] [Indexed: 11/10/2022] Open
Abstract
PURPOSE To evaluate the prognostic factors associated with overall survival in patients with brain metastasis treated with whole brain radiotherapy (WBRT) and estimate the potential improvement in survival for patients with brain metastases, stratified by the Radiation Therapy Oncology Group (RTOG) recursive partitioning analysis (RPA) class. PATIENTS AND METHODS From January 1996 to December 2000, 270 medical records of patients with diagnosis of brain metastasis, who received WBRT in the Hospital do Cancer Sao Paulo A.C. Camargo in the period, were analyzed. The surgery followed by WBRT was used in 15% of patients and 85% of others patients were submitted at WBRT alone; in this cohort 134 patients (50%) received the fractionation schedule of 30 Gy in 10 fractions. The most common primary tumor type was breast (33%) followed by lung (29%), and solitary brain metastasis was present in 38.1% of patients. The prognostic factors evaluated for overall survival were: gender, age, Karnofsky Performance Status (KPS), number of lesions, localization of lesions, primary tumor site, surgery, chemotherapy, absence extracranial disease, RPA class and radiation doses and fractionation. RESULTS The OS in 1, 2 and 3 years was 25.1%, 10.4% and 4.3% respectively, and the median survival time was 4.6 months. The median survival time in months according to RPA class after WBRT was: 6.2 class I, 4.2 class II and 3.0 class III (p < 0.0001). In univariate analysis, the significant prognostic factors associated with better survival were: KPS higher than 70 (p < 0.0001), neurosurgery (p < 0.0001) and solitary brain metastasis (p = 0.009). In multivariate analysis, KPS higher than 70 (p < 0.001) and neurosurgery (p = 0.001) maintained positively associated with the survival. CONCLUSION In this series, the patients with higher perform status, RPA class I, and treated with surgery followed by whole brain radiotherapy had better survival. This data suggest that patients with cancer and a single metastasis to the brain may be treated effectively with surgical resection plus radiotherapy. The different radiotherapy doses and fractionation schedules did not altered survival.
Collapse
Affiliation(s)
- Elisa Y Saito
- Department of Radiation Oncology Hospital do Cancer, Sao Paulo, Brazil
| | - Gustavo A Viani
- Department of Radiation Oncology Hospital do Cancer, Sao Paulo, Brazil
| | - Robson Ferrigno
- Department of Radiation Oncology Hospital do Cancer, Sao Paulo, Brazil
| | | | - Paulo E Novaes
- Department of Radiation Oncology Hospital do Cancer, Sao Paulo, Brazil
| | | | | | - Maria A Conte
- Department of Radiation Oncology Hospital do Cancer, Sao Paulo, Brazil
| | - Joao V Salvajoli
- Department of Radiation Oncology Hospital do Cancer, Sao Paulo, Brazil
| |
Collapse
|