Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 5 de 5
Filtrar
Más filtros












Base de datos
Intervalo de año de publicación
2.
J Clin Oncol ; 27(9): 1375-81, 2009 Mar 20.
Artículo en Inglés | MEDLINE | ID: mdl-19204198

RESUMEN

PURPOSE: Several studies suggest that surgical excision of the primary tumor improves survival among patients with stage IV breast cancer at diagnosis. Exclusive locoregional radiotherapy (LRR) is an alternative form of locoregional treatment (LRT) in this setting. We retrospectively studied the impact of LRT on the survival of breast cancer patients with synchronous metastases. PATIENTS AND METHODS: Among 18,753 breast cancer patients treated in our institution between 1980 and 2004, 598 patients (3.2%) had synchronous metastasis at diagnosis. Demographic data, tumor characteristics, metastatic sites, and treatments were prospectively recorded. The impact of LRT on overall survival (OS) was evaluated by multivariate analysis including known prognostic factors. RESULTS: Among 581 eligible patients, 320 received LRT (group A), and 261 received no LRT (group B). LRT consisted of exclusive LRR in 249 patients (78%), surgery of the primary tumor with adjuvant LRR in 41 patients (13%), and surgery alone in 30 patients (9%). With a median follow-up time of 39 months, the 3-year OS rates were 43.4% and 26.7% in group A and group B (P =.00002), respectively. The association between LRT and improved survival was particularly marked in women with visceral metastases. LRT was an independent prognostic factor in multivariate analysis (hazard ratio [HR] = 0.70; 95% CI, 0.58 to 0.85; P = .0002). The adjusted HR for late death (>or= 1 year) was 0.76 (95% CI, 0.61 to 0.96; P = .02). CONCLUSION: In our experience, LRT, consisting mainly of exclusive LRR, was associated with improved survival in breast cancer patients with synchronous metastases. Exclusive LRR may thus represent an active alternative to surgery.


Asunto(s)
Neoplasias de la Mama/patología , Neoplasias de la Mama/radioterapia , Adulto , Anciano , Anciano de 80 o más Años , Neoplasias Óseas/secundario , Neoplasias de la Mama/cirugía , Femenino , Humanos , Persona de Mediana Edad , Análisis Multivariante , Metástasis de la Neoplasia , Estudios Retrospectivos , Tasa de Supervivencia , Adulto Joven
3.
Occup Med (Lond) ; 56(3): 204-9, 2006 May.
Artículo en Inglés | MEDLINE | ID: mdl-16517555

RESUMEN

AIM: To evaluate the proportion of work-related cancers. METHODS: A descriptive study of incident cases of cancer during 3 years in a French county. All people with cancer having a current or past working history were included in the studied population which was recruited from local hospitals. A working history was obtained from each subject by interview. The different organ cancers were linked using well-defined criteria, to specific occupational carcinogenic exposures. The results obtained were compared to international data on work-related cancer incidences. RESULTS: A total of 2009 cases were included and 3.18% (64) met the criteria for work-related cancer as defined. Asbestos and polycyclic hydrocarbons were the main occupational carcinogens identified. Construction and fabricated metal products sectors were linked to almost two-thirds of work-related cancers. The percentage of the studied population with attributable risk for occupational cancer was relatively close to international data (mean 4%) and organ cancer distribution percentages did not vary significantly from international published validated data. CONCLUSION: Work-related cancers tend to be concentrated in relatively small groups of people among whom the risk of developing the disease may be quite large. The detection of occupational hazards should therefore have a higher priority in any programme of cancer prevention. Well-defined criteria to identify specifically cancers with an occupational origin should be specified by the scientific international community.


Asunto(s)
Carcinógenos/toxicidad , Neoplasias/epidemiología , Enfermedades Profesionales/epidemiología , Adulto , Anciano , Anciano de 80 o más Años , Amianto/toxicidad , Femenino , Francia/epidemiología , Humanos , Masculino , Persona de Mediana Edad , Neoplasias/etiología , Enfermedades Profesionales/etiología , Compuestos Policíclicos/toxicidad
4.
Anticancer Drugs ; 15(6): 647-50, 2004 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-15205611

RESUMEN

The aim of this study was to compare intra-arterial hepatic administration (IAH) versus i.v. administration of oxaliplatin and cisplatin in a VX2 tumor model in rabbits. VX2 tumors were implanted in the livers of White New Zealand female rabbits and 2 weeks later they received either cisplatin (4 mg/kg) or oxaliplatin (6 mg/kg) administered by IAH or i.v. Platinum pharmacokinetic parameters were measured by atomic absorption spectrometry at baseline, 2, 5 10, 20, 40 and 60 min, and then at 2, 4, 6 and 24 h after drug administration. Animals were sacrificed 24 h after drug administration to measure platinum concentrations in various tissues. After IAH oxaliplatin administration, we observed a significant decrease for total and filterable platinum in the Cmax compared with i.v. administration (12.4 versus 18.2 microg/l; p=0.02 and 11.2 versus 17.3 microg/l; p=0.02, respectively). Significant differences in various tissue concentrations were reported when comparing IAH and i.v. administration of oxaliplatin with IAH administration offering an advantage over i.v. administration. No differences in pharmacokinetic parameters or platinum tissue accumulation were apparent between the IAH and i.v. administration with cisplatin. We conclude that there is a significant pharmacokinetic advantage to using oxaliplatin for locoregional IAH chemotherapy compared with i.v. administration.


Asunto(s)
Cisplatino/administración & dosificación , Cisplatino/farmacocinética , Compuestos Organoplatinos/administración & dosificación , Compuestos Organoplatinos/farmacocinética , Animales , Área Bajo la Curva , Cisplatino/uso terapéutico , Esquema de Medicación , Femenino , Semivida , Arteria Hepática , Inyecciones Intraarteriales , Neoplasias Hepáticas Experimentales/irrigación sanguínea , Neoplasias Hepáticas Experimentales/tratamiento farmacológico , Compuestos Organoplatinos/uso terapéutico , Oxaliplatino , Platino (Metal)/sangre , Platino (Metal)/farmacocinética , Conejos , Factores de Tiempo , Distribución Tisular , Ensayos Antitumor por Modelo de Xenoinjerto/métodos
5.
Br J Haematol ; 118(1): 210-7, 2002 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-12100150

RESUMEN

Death during the induction phase of chemotherapy remains a common event in patients with aggressive non-Hodgkin's lymphoma (NHL). In a series of patients with aggressive NHL homogeneously treated with intensive induction chemotherapy [ACVB (doxorubicin, cyclophosphamide, vindesine, bleomycin, prednisone) regimen], we determined the clinical and biological parameters that were predictive of early death. Early death was defined as death, for whatever reason, occurring within 100 d of randomization. Predictive factors were identified by logistic regression and an index predictive for individual risk of early death was designed. Among the 2210 patients treated with ACVB, there were 162 (7.3%) early deaths. There was no significant reduction in the rate of early death between 1987 and 1998. In a multivariate analysis, age > 60 years, Eastern Cooperative Oncology Group performance status > 1, serum lactate dehydrogenase > normal, serum albumin < 30 g/l, leucocyte counts > 10 x 10(9)/l and haemoglobin levels < 8.5 g/dl were found to be independent predictive factors for early death. An early death index was designed, enabling the evaluation of the individual risk of early death in young (range 2-31% risk of early death) and elderly patients (range 5-53%). Clinical and biological parameters available at diagnosis can help physicians identify patients with aggressive lymphoma at low or high risk of early death.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Ciclofosfamida/administración & dosificación , Doxorrubicina/administración & dosificación , Linfoma no Hodgkin/tratamiento farmacológico , Prednisolona/administración & dosificación , Vincristina/administración & dosificación , Adolescente , Adulto , Factores de Edad , Anciano , Biomarcadores/sangre , Progresión de la Enfermedad , Femenino , Hemoglobinas/análisis , Humanos , L-Lactato Deshidrogenasa/sangre , Recuento de Leucocitos , Linfoma no Hodgkin/sangre , Linfoma no Hodgkin/mortalidad , Masculino , Persona de Mediana Edad , Pronóstico , Análisis de Regresión , Inducción de Remisión , Riesgo , Albúmina Sérica/análisis , Factores de Tiempo
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...