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1.
Int J Radiat Oncol Biol Phys ; 102(3): 568-577, 2018 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-29928946

RESUMO

PURPOSE: The impact of regional nodal irradiation (RNI) on locoregional recurrence (LRR) and any disease recurrence (DR) in women with node-positive breast cancer who receive neoadjuvant systemic therapy (NAT) is unknown. METHODS AND MATERIALS: The impact of RNI on LRR and DR was estimated with the cumulative incidence method in 1289 women with stage II to III breast cancer with cytologically confirmed axillary metastases who received NAT between 1989 and 2007. Multicovariate Cox regression analysis was performed to examine the effect of RNI after accounting for other predictive and prognostic variables. RESULTS: The median follow-up after definitive surgery was 10.2 years. Axillary pathologic complete response (pCR) was observed in 368 of 1289 patients (28.5%). On univariate analysis, axillary pCR reduced 10-year LRR risk from 9.7% to 4.8% (P = .006) and DR risk from 43.0% to 17.0% (P < .001). RNI was administered to 1080 of 1289 patients (83.8%). On univariate analysis, RNI did not affect 10-year LRR risk (no RNI, 9.4%; RNI, 8.1%; P = .62) or DR risk (no RNI, 31.3%; RNI, 36.5%; P = .16). On multicovariate analysis, RNI significantly reduced the risk of LRR (hazard ratio, 0.497; 95% confidence interval [CI], 0.279-0.884; P = .02) and DR (hazard ratio, 0.731; 95% CI, 0.541-0.988; P = .04) and showed a particularly strong reduction in risk of DR in patients with HER2+ disease who received trastuzumab (hazard ratio, 0.237; 95% CI, 0.109-0.517; P = .0003). A nomogram to predict 10-year LRR risk with and without RNI has been generated to assist clinicians in individualizing treatment decisions based on patient and disease characteristics and response to NAT. CONCLUSIONS: Adjuvant RNI reduces risk of LRR and DR in patients with breast cancer with axillary metastases who receive NAT across subtypes and particularly decreases the risk of DR in HER2+ breast cancer treated with trastuzumab. Enrollment on the National Surgical Adjuvant Breast and Bowel Project B-51/Radiation Therapy Oncology Group 1304 protocol is encouraged to help determine whether RNI can be omitted in patients with axillary pCR to NAT.


Assuntos
Neoplasias da Mama/radioterapia , Terapia Neoadjuvante/métodos , Recidiva Local de Neoplasia/radioterapia , Adulto , Idoso , Idoso de 80 Anos ou mais , Neoplasias da Mama/metabolismo , Neoplasias da Mama/patologia , Terapia Combinada , Feminino , Humanos , Incidência , Linfonodos/patologia , Mastectomia , Pessoa de Meia-Idade , Análise Multivariada , Metástase Neoplásica , Recidiva Local de Neoplasia/patologia , Valor Preditivo dos Testes , Prognóstico , Modelos de Riscos Proporcionais , Receptor ErbB-2/metabolismo , Risco , Trastuzumab/uso terapêutico , Adulto Jovem
2.
CA Cancer J Clin ; 67(5): 378-397, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28763097

RESUMO

Answer questions and earn CME/CNE Recent decades have seen an unprecedented rise in obesity, and the health impact thereof is increasingly evident. In 2014, worldwide, more than 1.9 billion adults were overweight (body mass index [BMI], 25-29.9 kg/m2 ), and of these, over 600 million were obese (BMI ≥30 kg/m2 ). Although the association between obesity and the risk of diabetes and coronary artery disease is widely known, the impact of obesity on cancer incidence, morbidity, and mortality is not fully appreciated. Obesity is associated both with a higher risk of developing breast cancer, particularly in postmenopausal women, and with worse disease outcome for women of all ages. The first part of this review summarizes the relationships between obesity and breast cancer development and outcomes in premenopausal and postmenopausal women and in those with hormone receptor-positive and -negative disease. The second part of this review addresses hypothesized molecular mechanistic insights that may underlie the effects of obesity to increase local and circulating proinflammatory cytokines, promote tumor angiogenesis and stimulate the most malignant cancer stem cell population to drive cancer growth, invasion, and metastasis. Finally, a review of observational studies demonstrates that increased physical activity is associated with lower breast cancer risk and better outcomes. The effects of recent lifestyle interventions to decrease sex steroids, insulin/insulin-like growth factor-1 pathway activation, and inflammatory biomarkers associated with worse breast cancer outcomes in obesity also are discussed. Although many observational studies indicate that exercise with weight loss is associated with improved breast cancer outcome, further prospective studies are needed to determine whether weight reduction will lead to improved patient outcomes. It is hoped that several ongoing lifestyle intervention trials, which are reviewed herein, will support the systematic incorporation of weight loss intervention strategies into care for patients with breast cancer. CA Cancer J Clin 2017;67:378-397. © 2017 American Cancer Society.


Assuntos
Neoplasias da Mama/epidemiologia , Obesidade/epidemiologia , Tecido Adiposo/metabolismo , Neoplasias da Mama/mortalidade , Neoplasias da Mama/terapia , Comorbidade , Exercício Físico , Feminino , Humanos , Estilo de Vida , Obesidade/metabolismo , Pós-Menopausa , Pré-Menopausa , Fatores de Risco , Aumento de Peso , Redução de Peso
3.
Water Sci Technol ; 60(8): 1979-88, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19844044

RESUMO

The challenge on implementation of the EU Water Framework Directive (WFD) (2000/60/EC) fosters the development of new monitoring approaches. The directive promotes the use of modelling techniques to assist all phases of the process, from characterization and establishment of reference conditions to identification of pressures and assessment of impact. This work is based on the above principles. A classical monitoring of the water status of the main transitional water bodies of Algarve (South of Portugal) is combined with advanced in situ water profiling and hydrodynamic, water quality and ecological modelling to build a complete description of the system. The aim is to demonstrate a methodology where traditional monitoring and modelling tools can be joined together to draw a holistic picture. The results show that globally the water bodies present a good trophic status. Eutrophication symptoms are not generalized. Due to physical transport and dispersion, nutrient enrichment is not the only factor limiting growth; residence time is also an important factor. Some confined regions with high residence times are at present endangered by point and diffuse sources of pollution. The microbiologic impact of waste water treatment plants (WWTP) is confined to regions between 500 m and 1 km from the discharges.


Assuntos
Abastecimento de Água/legislação & jurisprudência , Abastecimento de Água/normas , Água/normas , Calibragem , Fenômenos Ecológicos e Ambientais , Modelos Teóricos , Movimento (Física) , Fitoplâncton/metabolismo , Portugal , Microbiologia da Água
6.
Trastor. adict. (Ed. impr.) ; 9(3): 215-227, sept. 2007. tab
Artigo em Es | IBECS | ID: ibc-058918

RESUMO

Objetivo. Los trastornos de personalidad en personas con dependencia de la cocaína son frecuentes e interfieren en el tratamiento de estas personas. En España todavía son escasos los estudios que se ocupan de evaluar esta relación. El objetivo del presente estudio es evaluar la presencia de trastornos de personalidad en personas con dependencia de la cocaína que están en tratamiento en Centros de Drogodependencias, y conocer si hay diferencias entre los sujetos que tienen trastornos de personalidad y los que no los tienen, en función de características sociodemográficas, psicopatológicas y de consumo de drogas. Material y métodos. Utilizamos el MCMI-II para analizar la probabilidad de presencia de trastornos de personalidad. El estudio se realizó en 102 pacientes con dependencia de la cocaína. Resultados. Un importante porcentaje de los sujetos presenta, al menos, un trastorno de personalidad (66,6%). Estos se diferencian del grupo de sujetos que no tienen trastorno de personalidad en las características psicopatológicas analizadas (depresión, ansiedad, etc.). Conclusiones. La importante prevalencia de los trastornos de personalidad en personas con dependencia de la cocaína indica la necesidad de su evaluación al inicio del tratamiento


Objective. The personality disorders in people with cocaine dependence are frequent and they interfere in the treatment of these persons. Few studies analyze this relationship in Spain. The present study aims to evaluate the presence of personality disorders in persons with cocaine dependence that are in treatment in Centers of Drug Dependence in Galicia (Spain) and to know if there are differences among both groups, with and without personality disorders, in relation to sociodemographic characteristics, psychopathology and drug consumption. Material and methods. We use the MCMI-II to analyze the probability of presence of personality disorders. One hundred and two patients with cocaine dependence were included in the study. Results. An important percentage of subjects present one or more personality disorder (66.6%), and they differ of the group without personality disorders in psychopathological characteristics (depression, anxiety, etc.). Conclusions. The important prevalence of personality disorders in cocaine dependence persons indicates the evaluation to the beginning of treatment


Assuntos
Masculino , Feminino , Adolescente , Adulto , Humanos , Transtornos Relacionados ao Uso de Cocaína/epidemiologia , Transtornos da Personalidade/epidemiologia , Manual Diagnóstico e Estatístico de Transtornos Mentais , Espanha/epidemiologia , Comorbidade , Prevalência
8.
Adv Ther ; 17(4): 184-9, 2000.
Artigo em Inglês | MEDLINE | ID: mdl-11185057

RESUMO

This prospective, multicenter, open-label study assessed the efficacy and tolerability of recombinant human platelet-derived growth factor BB (becaplermin) in the treatment of chronic ulcers of the lower extremities in 73 patients with and without type 2 diabetes mellitus. Becaplermin gel .01% was applied once daily for 12 weeks. Efficacy was assessed in terms of progression to healing (100% epithelialization); the secondary efficacy endpoint was time to complete healing. Safety was assessed in terms of incidence of adverse events. Ninety-five percent of all ulcers were completely healed at week 9; only 5% remained incompletely healed at week 12 and were considered treatment failures. Healing time did not differ between diabetic and nondiabetic patients. The major adverse events were pain, burning sensation, and pruritus at the ulcer site, with an overall incidence of 10%. No patients dropped out because of adverse events. Becaplermin gel .01% was safe and well tolerated. Further studies are necessary to assess the durability of healing with this treatment.


Assuntos
Anticoagulantes/uso terapêutico , Pé Diabético/tratamento farmacológico , Úlcera do Pé/tratamento farmacológico , Fator de Crescimento Derivado de Plaquetas/uso terapêutico , Proteínas Recombinantes/uso terapêutico , Adulto , Idoso , Idoso de 80 Anos ou mais , Becaplermina , Diabetes Mellitus Tipo 2/complicações , Pé Diabético/etiologia , Feminino , Úlcera do Pé/etiologia , Géis , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Proteínas Proto-Oncogênicas c-sis , Insuficiência Venosa/complicações
9.
Rev Gastroenterol Mex ; 62(4): 254-9, 1997.
Artigo em Espanhol | MEDLINE | ID: mdl-9528295

RESUMO

UNLABELLED: Laparoscopy reduces the risk of performing unnecessary appendectomies and offers the advantages of minimal invasive surgery when appendectomy is needed. We report our experience comparing open (Group A) with laparoscopic (Group B) appendectomy. PATIENTS AND METHODS: There were 20 patients in each group. Age, sex, signs, symptoms, evolution, laboratory, stage of disease, drains, duration of surgery, antibiotics, oral intake restart, postoperative pain at 24, 48 and 72 hours, complications, hospital stay, return to normal activities and cosmesis were reviewed. Statistical differences were determined using Student's t test (two tailed) or chi-square with Yates correction. Surgical technique is described. RESULTS: In both groups most variables were similar (p = ns). Group B presented earlier oral intake restart (p < 0.001), and less postoperative pain at 24 (p < 0.001), 48 (p < 0.01) and 72 hours (p < 0.001). Hospitalization stay was shorter (p < 0.001) and return to normal activities was earlier (p < 0.001) in group B. Better cosmetical appearance was observed in Group B (16 vs. 0 "excellent" -p < 0.001). CONCLUSIONS: Laparoscopic approach may reduce unnecessary appendectomies and it allows to perform appendectomy in a safe and effective way. In this study, laparoscopic was better than open appendectomy regarding early restart of oral intake, less postoperative pain, shorter hospitalization stay, earlier return to normal activities and better cosmetic appearance.


Assuntos
Apendicectomia/métodos , Laparoscopia , Adolescente , Adulto , Apendicite/cirurgia , Interpretação Estatística de Dados , Estudos de Avaliação como Assunto , Feminino , Humanos , Tempo de Internação , Masculino , Dor Pós-Operatória/etiologia
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