Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 195
Filtrar
Mais filtros











Intervalo de ano de publicação
1.
Waste Manag ; 174: 114-125, 2024 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-38041980

RESUMO

The objective of this paper is to present the technical and feasibility analysis of an innovative mechanical recycling system for exhausted coffee capsules. This recycling process involved the sorting of spent coffee grounds (SGC) and the subsequent drying and melt-mixing of a portion of these grounds with the remaining capsule components, mainly composed of polypropylene (PP), along with optional virgin PP. These newly developed composite materials exhibited mechanical and rheological properties comparable or even surpassing those of virgin PP. They were also successfully utilized for the injection of new capsule shells, thus alignin with the principles of the circular economy. In addition to the technical aspects, this paper present a comprehensive Techno-Economic Analysis (TEA) of the proposed recycling processes, considering the inclusion of virgin PP (0-20 %) and the initial moisture content (MSGC) of SGC(5-55 %) as varying factors. An industrial plant, designed to handle up to 190 million exhausted coffee capsules and produce up to 1500 tons of recycled compund was appropriately sized. The analysis revealed that processes are profitable across all examined scenarios and that the Net Present Value ranged between 800 k€ (for vPP = 20 % and MSGC = 55 %) and 2000 k€ (for vPP = 0 % and MSGC = 5 %).


Assuntos
Café , Reciclagem , Polipropilenos , Instalações Industriais e de Manufatura
3.
Eur Rev Med Pharmacol Sci ; 27(3 Suppl): 11-17, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-37129331

RESUMO

OBJECTIVE: Surgical reconstruction of soft tissue defects in the distal third of the lower limbs has always been challenging for surgeons. The adipofascial flaps are made up of vascularized adipose tissue, which plastically conforms to the site to be reconstructed with its rich presence of stem cells. In this study, we resumed our case history of reverse neuroadipofascial sural flap, and we evaluated the stability of the scar to verify if this type of reconstruction can ensure long-term results and its regenerative power. PATIENTS AND METHODS: In this retrospective cohort study, we analyzed 32 patients who had undergone lower limb reconstruction with the sural neuroadipovenous flap. RESULTS: A total of 32 patients were included in the study. The average age was 62.2 years. Chronic skin ulcer was the cause of the defects in 13 (40.6%) patients, chronic wound after trauma in 7 (21.9%) patients, wheel bedsores in 4 (12.5%) patients, osteomyelitis in 5 (15.6%) patients, exposed internal hardware in 2 (6.3%) patients, dog bite in 1 (3.1%). The site defect comprised 11 heels (34.4%), 4 external malleoli (12.5%), three medial malleoli (9.4%), 12 lower third of the leg (37.5%), and two dorsa of the foot (6.3%). In all cases, defects were covered with reverse sural island flap. The dimension of the flap ranged from 5 to 9 cm in length and from 3 to 7 in width. Six patients showed early or later postoperative complications. CONCLUSIONS: The neuroadipofascial sural flap is versatile, fast, and easy-to-perform to cover a chronic defect in the distal part of the lower limb, including both the malleoli and the heel, due to its long vascular pedicle. Consistent with the studies carried out in other districts, the present study confirms the remarkable regenerative power of the vascularized adipose tissue at the level of complex wounds of the lower third of the leg.


Assuntos
Procedimentos de Cirurgia Plástica , Extremidade Inferior , Estudos Retrospectivos , Retalhos Cirúrgicos/irrigação sanguínea , Resultado do Tratamento , Úlcera , Humanos
4.
Clin Ter ; 173(4): 342-346, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35857051

RESUMO

Background: Breast is a symbol of femininity, motherhood and sexuality. Breast cancer (BC) is the leading cause of cancer death in women worldwide and most frequent cancer in Italy: in 2019, 53.500 new cases were diagnosed. BC and its treatment, the disturbances of body image, and mental health problems such as anxiety and depression could influence sexuality. Very often the aspect of sexuality in BC is likely not to be fully investigated: cultural barriers may also contribute to lack of attention to these issues. In Italy, there are very few Breast Units that provide the figure of the sexologist and psycho-oncologist. Methods: We enlisted 141 BC patients (pts), mean age was 54 years afferent to Breast Unit S. Maria Goretti Hospital, Latina, from March 2019 to March 2020. All pts had undergone surgical intervention. Participants were invited to complete a structured questionnaire, which included four close-up questions regarding self-image, sexual activity, sexual satisfaction, analyzing these aspects before and after BC and its treatments. Finally the participants were asked if they needed the sexologist and psycho-oncologist. Results: Only 2/141 pts (1.41%) refused to participate in our study. Of 139 participants, 68 (48.92%) had disturbances of body image, 26 (18.7%) had sexuality greatly negatively affected, and 103 (74.1%) every kind of sexual dissatisfaction after BC. 38 pts (27.3%) would require the help of the sexologist. 135 ( 97%) would require the help of the psycho-oncologist. Despite the negative influence in their body-image and sexuality, few pts require the help of the sexologist, but nearly all pts require the help of the psycho-oncologist. Conclusion: In our study nearly all pts require the help of the psycho-oncologist, but few pts of the sexologist. Further studies will be needed to understand the reasons for this disparity: at the moment we are carrying out another project following this illustration, with the aim of understanding why this disparity.


Assuntos
Neoplasias da Mama , Imagem Corporal/psicologia , Neoplasias da Mama/complicações , Cicatriz , Feminino , Humanos , Pessoa de Meia-Idade , Qualidade de Vida/psicologia , Comportamento Sexual/psicologia , Sexualidade/psicologia
5.
BMC Cancer ; 21(1): 726, 2021 Jun 24.
Artigo em Inglês | MEDLINE | ID: mdl-34167516

RESUMO

OBJECTIVE: To analyze trends in cancer incidence and mortality (France, 1990-2018), with a focus on men-women disparities. METHODS: Incidence data stemmed from cancer registries (FRANCIM) and mortality data from national statistics (CépiDc). Incidence and mortality rates were modelled using bidimensional penalized splines of age and year (at diagnosis and at death, respectively). Trends in age-standardized rates were summarized by the average annual percent changes (AAPC) for all-cancers combined, 19 solid tumors, and 8 subsites. Sex gaps were indicated using male-to-female rate ratios (relative difference) and male-to-female rate differences (absolute difference) in 1990 and 2018, for incidence and mortality, respectively. RESULTS: For all-cancers, the sex gap narrowed over 1990-2018 in incidence (1.6 to 1.2) and mortality (2.3 to 1.7). The largest decreases of the male-to-female incidence rate ratio were for cancers of the lung (9.5 to 2.2), lip - oral cavity - pharynx (10.9 to 3.1), esophagus (12.6 to 4.5) and larynx (17.1 to 7.1). Mixed trends emerged in lung and oesophageal cancers, probably explained by differing risk factors for the two main histological subtypes. Sex incidence gaps narrowed due to increasing trends in men and women for skin melanoma (0.7 to 1, due to initially higher rates in women), cancers of the liver (7.4 to 4.4) and pancreas (2.0 to 1.4). Sex incidence gaps narrowed for colon-rectum (1.7 to 1.4), urinary bladder (6.9 to 6.1) and stomach (2.7 to 2.4) driven by decreasing trends among men. Other cancers showed similar increasing incidence trends in both sexes leading to stable sex gaps: thyroid gland (0.3 to 0.3), kidney (2.2 to 2.4) and central nervous system (1.4 to 1.5). CONCLUSION: In France in 2018, while men still had higher risks of developing or dying from most cancers, the sex gap was narrowing. Efforts should focus on avoiding risk factors (e.g., smoking) and developing etiological studies to understand currently unexplained increasing trends.


Assuntos
Neoplasias/epidemiologia , Feminino , Identidade de Gênero , História do Século XX , História do Século XXI , Humanos , Incidência , Masculino , Neoplasias/mortalidade
6.
Hand Surg Rehabil ; 40(2): 139-144, 2021 04.
Artigo em Inglês | MEDLINE | ID: mdl-33309793

RESUMO

The aims of this study were to evaluate the impact of the COVID-19 pandemic on emergency and elective hand surgery in four Italian regions that had either a high (Lombardy and Piemonte) or a low (Sicilia and Puglia) COVID-19 case load to discuss problems and to elaborate strategies to improve treatment pathways. A panel of hand surgeons from these different regions compared and discussed data from the centers they work in. The COVID-19 pandemic had an enormous impact on both elective and emergency surgery in Italy, not only in highly affected regions but also - and paradoxically even at a higher extent - in regions with a low COVID-19 case load. A durable and flexible redesign of hand surgery activities should be promoted, while changing and hopefully increasing human resources and enhancing administrative support. Telematics must also be implemented, especially for delivering rehabilitation therapy.


Assuntos
COVID-19/epidemiologia , Mãos/cirurgia , Procedimentos Ortopédicos/estatística & dados numéricos , Pandemias , Teste para COVID-19/estatística & dados numéricos , Procedimentos Cirúrgicos Eletivos/estatística & dados numéricos , Acessibilidade aos Serviços de Saúde/estatística & dados numéricos , Humanos , Itália/epidemiologia , Admissão e Escalonamento de Pessoal/organização & administração , Modalidades de Fisioterapia/organização & administração , Modalidades de Fisioterapia/estatística & dados numéricos , Cuidados Pós-Operatórios , Inquéritos e Questionários , Telemedicina/estatística & dados numéricos
7.
Phys Med ; 73: 65-72, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-32330813

RESUMO

PURPOSE: A reliable model to simulate nuclear interactions is fundamental for Ion-therapy. We already showed how BLOB ("Boltzmann-Langevin One Body"), a model developed to simulate heavy ion interactions up to few hundreds of MeV/u, could simulate also 12C reactions in the same energy domain. However, its computation time is too long for any medical application. For this reason we present the possibility of emulating it with a Deep Learning algorithm. METHODS: The BLOB final state is a Probability Density Function (PDF) of finding a nucleon in a position of the phase space. We discretised this PDF and trained a Variational Auto-Encoder (VAE) to reproduce such a discrete PDF. As a proof of concept, we developed and trained a VAE to emulate BLOB in simulating the interactions of 12C with 12C at 62 MeV/u. To have more control on the generation, we forced the VAE latent space to be organised with respect to the impact parameter (b) training a classifier of b jointly with the VAE. RESULTS: The distributions obtained from the VAE are similar to the input ones and the computation time needed to use the VAE as a generator is negligible. CONCLUSIONS: We show that it is possible to use a Deep Learning approach to emulate a model developed to simulate nuclear reactions in the energy range of interest for Ion-therapy. We foresee the implementation of the generation part in C++ and to interface it with the most used Monte Carlo toolkit: Geant4.


Assuntos
Aprendizado Profundo , Radiobiologia , Método de Monte Carlo
8.
Phys Med ; 67: 116-122, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31706147

RESUMO

PURPOSE: Monte Carlo (MC) simulations are widely used for medical applications and nuclear reaction models are fundamental for the simulation of the particle interactions with patients in ion therapy. Therefore, it is of utmost importance to have reliable models in MC simulations for such interactions. Geant4 is one of the most used toolkits for MC simulation. However, its models showed severe limitations in reproducing the yields measured in the interaction of ion beams below 100 MeV/u with thin targets. For this reason, we interfaced two models, SMF ("Stochastic Mean Field") and BLOB ("Boltzmann-Langevin One Body"), dedicated to simulate such reactions, with Geant4. METHODS: Both SMF and BLOB are semi-classical, one-body approaches to solve the Boltzmann-Langevin equation. They include an identical treatment of the mean-field propagation, on the basis of the same effective interaction, but they differ in the way fluctuations are included. Furthermore, we tested a correction to the excitation energy calculated for the light fragments emerging from the simulations and a simple coalescence model. RESULTS: While both SMF and BLOB have been developed to simulate heavy ion interactions, they show very good results in reproducing the experimental yields of light fragments, up to alpha particles, obtained in the interaction of 12C with a thin carbon target at 62 MeV/u. CONCLUSIONS: BLOB in particular gives promising results and this stresses the importance of integrating it into the Geant4 toolkit.


Assuntos
Método de Monte Carlo , Radioterapia , Processos Estocásticos
9.
BMC Cancer ; 18(1): 1091, 2018 Nov 12.
Artigo em Inglês | MEDLINE | ID: mdl-30419850

RESUMO

BACKGROUND: Survival rates of lung cancer remains poor and the impact of comorbidities on the prognosis is discussed. The objective of this study was to assess if the Charlson Comorbidity Index (CCI) was associated with 8-year survival rates by histological type. METHODS: A cohort study was conducted using randomly selected cases from 10 French cancer registries. Net survival rates were computed using the Pohar-Perme estimator of the net cumulative rate. Three Cox models were independently built for adenocarcinomas, squamous cell and small cell cancers to estimate prognostic factors including CCI grade. RESULTS: A total of 646 adenocarcinomas, 524 squamous cell and 233 small cell cancers were included in the analysis. The net 8-year survival rate ranged from 12.6% (95% CI: 9.8-15.4%) for adenocarcinomas and 13.4% (95% CI: 10.1-16.7%) for squamous cell carcinomas, to 3.7% (95% CI: 1.1-6.3%) for small cell cancers. Observed and net survival rates decreased for CCI grades ≥3 for all histological group considered. After adjustment for sex, age group, stage and diagnostic mode, CCI grades 1 (HR = 1.6 [95% CI: 1.1-2.3]), 2 (HR = 1.7 [95% CI: 1.1-2.7]) and ≥ 3 (HR = 2.7 [95% CI: 1.7-4.4]) were associated with lower survival rates only for small cell cancers. CONCLUSION: After adjustment for age, sex, stage and diagnostic mode, the presence of comorbidity based on CCI grades 1-2 and ≥ 3 was associated with lower survival rates for small cell cancers whereas no differences were observed for adenocarcinomas and squamous cell cancers.


Assuntos
Neoplasias Pulmonares/epidemiologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Linhagem Celular Tumoral , Comorbidade , Feminino , Seguimentos , França/epidemiologia , Humanos , Neoplasias Pulmonares/diagnóstico , Neoplasias Pulmonares/mortalidade , Neoplasias Pulmonares/terapia , Masculino , Pessoa de Meia-Idade , Gradação de Tumores , Estadiamento de Neoplasias , Vigilância da População , Modelos de Riscos Proporcionais , Sistema de Registros , Estudos Retrospectivos , Taxa de Sobrevida
11.
J Mycol Med ; 28(4): 655-658, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30366642

RESUMO

Herein we describe a 43 year-old Caucasian female patient with acute myeloid leukemia that developed an unconventional form of invasive Aspergillosis. For therapeutic reasons, a Groshong-type central venous catheter was positioned. Monitoring the patient's clinical conditions, positive values for C-reactive protein and galactomannan were correlated with a probably Aspergillosis. Surprisingly no pulmonary evidences were observed. Due to worsening conditions, she was re-hospitalized and a blood culture was performed, whom positivity resulted as the first clinical evidence of Aspergillus fumigatus. Further evidence about species identification was obtained by sequencing the fungal ITS region. We support the clinical value of blood culture as a decisive factor to improve the diagnosis of catheter-related Aspergillosis.


Assuntos
Aspergilose/diagnóstico , Aspergillus fumigatus/isolamento & purificação , Infecções Relacionadas a Cateter/diagnóstico , Leucemia Mieloide Aguda/complicações , Adulto , Antifúngicos/uso terapêutico , Aspergilose/sangue , Aspergilose/tratamento farmacológico , Aspergillus fumigatus/efeitos dos fármacos , Aspergillus fumigatus/genética , Aspergillus fumigatus/crescimento & desenvolvimento , Hemocultura , Proteína C-Reativa/análise , Infecções Relacionadas a Cateter/sangue , Infecções Relacionadas a Cateter/tratamento farmacológico , Meios de Cultura , DNA Fúngico/genética , DNA Espaçador Ribossômico/genética , Feminino , Galactose/análogos & derivados , Humanos , Mananas/análise , Neutropenia/sangue , Análise de Sequência de DNA , Resultado do Tratamento
12.
Cancer Epidemiol ; 56: 97-105, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-30125884

RESUMO

BACKGROUND: This study analyzes time trends in cancer prevalence in France and provides short-term projections up to the year 2017. The 15-year prevalence for 24 cancers was estimated from the French cancer registries network (FRANCIM) incidence and survival data. METHOD: We estimated prevalence using the P = I × S relationship, with flexible modeling of incidence and survival. Based on observations of the incidence and survival up to 2010, different scenarios for evolution up to 2017 were studied, combining stable and dynamic incidence and survival. The determinants of variations in prevalence (incidence, survival and demography) were quantified. RESULTS: At the end of 2017, an estimated 1,396,000 men and 1,359,000 women having had cancer in the previous 15 years were alive, respectively 5.4% and 4.8% of the population. Twelve percent had been diagnosed in the preceding year and 23% between 10 and 15 years. Between 2010 and 2017, changes in incidence and survival depended on the cancer site. The effect of the demographic change was null for those under age 65, whereas above age 65, the contribution of this factor was 20% in men and 17% in women at 15 years. The different projection scenarios led to very different estimates for some cancers for which incidence strongly varied in the last decades. CONCLUSION: Prevalent cases are numerous in a country such as France, where incidence and survival are high. Due to the sensitivity of prevalence to changes in incidence and survival, we recommend that the results of projections are presented under different scenarios. We propose a robust and flexible prevalence estimate.


Assuntos
Neoplasias/epidemiologia , Neoplasias/mortalidade , Sistema de Registros/estatística & dados numéricos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , França/epidemiologia , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Prevalência , Prognóstico , Taxa de Sobrevida , Fatores de Tempo , Adulto Jovem
13.
Nucleus (La Habana) ; (63): 19-24, Jan.-June 2018. graf
Artigo em Inglês | LILACS | ID: biblio-990202

RESUMO

Abstract The attention to nuclear clustering has been renewed due to the study of weakly bound nuclei at the drip lines. In particular, clustering structural properties in medium-mass systems have been studied by looking at the competition between the evaporation and pre-equilibrium particle emission in central collisions. Although for light nuclei at an excitation energy close to the particle separation value there are experimental evidence of such structure effects, this is still not the case for heavier systems since the determination of pre-formed clusters within nuclear matter is less obvious. Two systems, leading to the same 81Rb* compound nucleus, have been studied at the same beam velocity 16 AMeV: 16O + 65Cu and 19F + 62Ni. The experiment has been performed using the GARFIELD + RCo detection system installed at the Legnaro National Laboratories.Light charged particles energy distributions and multiplicities have been compared with different statistical and dynamical model calculations. From the first comparison between the two systems a difference in the fast α-decay channel has been evidenced, which can be related to the difference in the projectile structure. Recent data analysis results and comparisons with model calculations are presented in this contribution.


Resumen La atención a la agrupación nuclear se ha renovado debido al estudio de núcleos débilmente unidos en las líneas de goteo. En particular, se han estudiado las propiedades estructurales del agrupamiento en sistemas de masa media al observar la competencia entre la evaporación y la emisión de partículas de preequilibrio en colisiones centrales. Aunque para núcleos ligeros a una energía de excitación cercana al valor de separación de la partícula hay evidencia experimental de tales efectos de estructura, este no es el caso para sistemas más pesados ya que la determinación de agrupamientos preformados dentro de la materia nuclear es menos obvia. Se han estudiado dos sistemas, que conducen al mismo núcleo compuesto 81Rb *, a la misma velocidad de haz 16 AMeV: 16O + 65Cu y 19F + 62Ni. El experimento se ha realizado utilizando el sistema de detección GARFIELD + RCo instalado en los Laboratorios Nacionales Legnaro. Las distribuciones de energía y las multiplicidades de partículas de carga ligera se han comparado con diferentes cálculos de modelos estadísticos y dinámicos. Desde la primera comparación entre los dos sistemas, se ha evidenciado una diferencia en el canal de desintegración α rápida, que se puede relacionar con la diferencia en la estructura del proyectil. En esta contribución se presentan los resultados del análisis de datos recientes y las comparaciones con los cálculos del modelo.

14.
J Eur Acad Dermatol Venereol ; 32(8): 1292-1296, 2018 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-29341266

RESUMO

BACKGROUND: Merkel cell carcinoma (MCC) is a rare primary cutaneous neuroendocrine carcinoma. Owing to its low incidence, epidemiological data are scarce and have never been analysed in France to identify the main epidemiological trends. METHODS: Data from MCC patients diagnosed between 1998 and 2010 were obtained from 11 French cancer registries in the FRANCIM network. The main epidemiological characteristics of MCC were investigated between 2006 and 2010 because comprehensive data were only available for this period. The main focus was tumour incidence and mortality over time. RESULTS: Between 1998 and 2010, 562 cases of MCC were reported in the registries. From 2006 to 2010 (290 cases), European- and world-standardized incidence rates were 0.26 and 0.43 per 100,000 person-years in men and 0.24 and 0.38 per 100,000 person-years in women. MCC is more frequent in females in France (56.9%) with male/female ratio 1.1. Relative survival rates were 84%, 56% and 42% at one, three and 5 years, respectively. CONCLUSIONS: The incidence of MCC clearly increased over time in all areas under focus. The standardized incidence in France was comparable to the incidence observed in other countries for the same period, but French data are too recent to conclude on an increase in MCC incidence. Prognosis remains poor in all countries in which data are available.


Assuntos
Carcinoma de Célula de Merkel/epidemiologia , Neoplasias Cutâneas/epidemiologia , Adolescente , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Carcinoma de Célula de Merkel/mortalidade , Criança , Pré-Escolar , Estudos Epidemiológicos , Feminino , França/epidemiologia , Humanos , Incidência , Lactente , Recém-Nascido , Masculino , Pessoa de Meia-Idade , Sistema de Registros , Estudos Retrospectivos , Fatores Sexuais , Neoplasias Cutâneas/mortalidade , Taxa de Sobrevida , Adulto Jovem
15.
Mucosal Immunol ; 11(1): 50-60, 2018 01.
Artigo em Inglês | MEDLINE | ID: mdl-28513593

RESUMO

Loss-of-function mutations in the tyrosine kinase JAK3 cause autosomal recessive severe combined immunodeficiency (SCID). Defects in this form of SCID are restricted to the immune system, which led to the development of immunosuppressive JAK inhibitors. We find that the B6.Cg-Nr1d1tm1Ven/LazJ mouse line purchased from Jackson Laboratories harbors a spontaneous mutation in Jak3, generating a SCID phenotype and an inability to generate antigen-independent professional cytokine-producing innate lymphoid cells (ILCs). Mechanistically, Jak3 deficiency blocks ILC differentiation in the bone marrow at the ILC precursor and the pre-NK cell progenitor. We further demonstrate that the pan-JAK inhibitor tofacitinib and the specific JAK3 inhibitor PF-06651600 impair the ability of human intraepithelial ILC1 (iILC1) to produce IFN-γ, without affecting ILC3 production of IL-22. Both inhibitors impaired the proliferation of iILC1 and ILC3 and differentiation of human ILC in vitro. Tofacitinib is currently approved for the treatment of moderate-to-severely active rheumatoid arthritis. Both tofacitinib and PF-06651600 are currently in clinical trials for several other immune-mediated conditions. Our data suggest that therapeutic inhibition of JAK may also impact ILCs and, to some extent, underlie clinical efficacy.


Assuntos
Artrite Reumatoide/tratamento farmacológico , Células da Medula Óssea/fisiologia , Janus Quinase 3/genética , Células Matadoras Naturais/fisiologia , Mutação/genética , Piperidinas/uso terapêutico , Pirimidinas/uso terapêutico , Pirróis/uso terapêutico , Imunodeficiência Combinada Severa/genética , Animais , Diferenciação Celular/genética , Proliferação de Células/genética , Células Cultivadas , Humanos , Imunidade Inata , Interferon gama/metabolismo , Janus Quinase 3/antagonistas & inibidores , Camundongos , Camundongos Mutantes , Fenótipo , Piperidinas/farmacologia , Pirimidinas/farmacologia , Pirróis/farmacologia
16.
Rev Epidemiol Sante Publique ; 65(4): 301-308, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28579185

RESUMO

BACKGROUND: In retrospective case-control studies performed following nuclear tests or nuclear accidents, individual thyroid radiation dose reconstructions are based on fallout and meteorological data from the residential area, demographic characteristics, and lifestyle as well as dietary information. Collecting the latter is a controversial step, as dietary declarations may be affected by the subjects' beliefs about their risk behavior. This report analyses the potential for such bias in a case-control study performed in eastern France. METHODS: The study included 765 cases of differentiated thyroid carcinoma matched with 831 controls. Risk perceptions and beliefs of cases and controls were compared using Chi2 tests and differences in dietary reports were analyzed using a two-way ANOVA. RESULTS: In general, atmospheric pollution and living near a nuclear power plant were the two major risks that may influence thyroid cancer occurrence cited by cases and controls. When focusing in particular on the consequences of the Chernobyl accident, cases were more likely to think that the consequences were responsible for thyroid cancer occurrence than controls. Vegetable consumption during the two months after the Chernobyl accident was correlated with the status of subjects, but not to their beliefs. Conversely, consumption of fresh dairy products was not correlated with the status or beliefs of subjects. CONCLUSION: We found no evidence of systematic bias in dietary reports according to the status or beliefs held by subjects about the link between thyroid cancer occurrence and Chernobyl fallout. As such, these dietary reports may be used in further studies involving individual dosimetric reconstructions.


Assuntos
Acidente Nuclear de Chernobyl , Registros de Dieta , Comportamento Alimentar/psicologia , Contaminação Radioativa de Alimentos , Percepção , Cinza Radioativa , Neoplasias da Glândula Tireoide/epidemiologia , Adolescente , Adulto , Viés , Estudos de Casos e Controles , Criança , Desastres , Feminino , França/epidemiologia , Humanos , Masculino , Centrais Nucleares , Inquéritos Nutricionais , Cinza Radioativa/análise , Cinza Radioativa/estatística & dados numéricos , Estudos Retrospectivos , Fatores de Risco , Comportamento de Redução do Risco , Adulto Jovem
17.
Eur J Cancer ; 77: 140-152, 2017 05.
Artigo em Inglês | MEDLINE | ID: mdl-28410490

RESUMO

BACKGROUND: Incidence rates of thyroid cancer (TC) increased in several countries during the last 30 years, while mortality rates remained unchanged, raising important questions for treatment and follow-up of TC patients. This study updates population-based estimates of relative survival (RS) after TC diagnosis in Europe by sex, country, age, period and histology. METHODS: Data from 87 cancer registries in 29 countries were extracted from the EUROCARE-5 dataset. One- and 5-year RS were estimated using the cohort approach for 86,690 adult TC patients diagnosed in 2000-2007 and followed-up to 12/31/2008. RS trends in 1999-2007 and 10-year RS in 2005-2007 were estimated using the period approach. RESULTS: In Europe 2000-2007, 5-year RS after TC was 88% in women and 81% in men. Survival rates varied by country and were strongly correlated (Pearson ρ = 75%) with country-specific incidence rates. Five-year RS decreased with age (in women from >95% at age 15-54 to 57% at age 75+), from 98% in women and 94% in men with papillary TC to 14% in women and 12% in men with anaplastic TC. Proportion of papillary TC varied by country and increased over time, while survival rates were similar across areas and periods. In 1999-2007, 5-year RS increased by five percentage points for all TCs but only by two for papillary and by four for follicular TC. Ten-year RS in 2005-2007 was 89% in women and 79% in men. CONCLUSIONS: The reported increasing TC survival trend and differences by area are mainly explained by the varying histological case-mix of cases.


Assuntos
Adenocarcinoma Folicular/mortalidade , Carcinoma/mortalidade , Neoplasias da Glândula Tireoide/mortalidade , Adolescente , Adulto , Idoso , Carcinoma Papilar , Grupos Diagnósticos Relacionados , Europa (Continente)/epidemiologia , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Sistema de Registros , Características de Residência/estatística & dados numéricos , Distribuição por Sexo , Câncer Papilífero da Tireoide , Adulto Jovem
18.
J Stomatol Oral Maxillofac Surg ; 118(2): 84-89, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-28330788

RESUMO

Despite the frequency and lethality of oral cancers in France, there are no detailed general population data regarding the characteristics of these patients to fuel the public health authorities' reflections about early detection policies. Thus, the objective of this study was to determine, in the general population, the characteristics of both patients and tumours at the time of the diagnosis. A high-resolution, population-based study using 13 French registries was conducted on 1089 tumours diagnosed in 2010. Men accounted for 75% of cases. The most frequent sites were tonsil (28.4%) and oral tongue (21.1%). The median age varied from 56.7 years for floor of mouth to 66.4 years for gum. The lesions were mainly diagnosed on pain and those diagnosed after routine clinical examination were scarce (2.6%). There were 65.5% stage III and IV at diagnosis. Oral tongue, floor of mouth and palate presented tumours less than 2cm only in 34 to 40% of cases. Advanced stage was associated with the presence of comorbidities, and tonsil or base of tongue topography. Stage was not associated with Département, deprivation index or gender. This study provided a picture of the characteristics of oral cancer patients and their tumours and showed that diagnoses are often made late, even for those tumours most easily accessible to direct visual and tactile examination. Nevertheless, it remains to define the target population of an early detection and to evaluate the benefit of such detection on the mortality rate.


Assuntos
Detecção Precoce de Câncer/estatística & dados numéricos , Neoplasias Bucais/diagnóstico , Neoplasias Bucais/epidemiologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , França/epidemiologia , Humanos , Incidência , Masculino , Programas de Rastreamento/métodos , Programas de Rastreamento/estatística & dados numéricos , Pessoa de Meia-Idade , Neoplasias Bucais/patologia , Estadiamento de Neoplasias , Sistema de Registros
19.
J Mal Vasc ; 41(3): 169-75, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-27080824

RESUMO

BACKGROUND: Recent studies have shown lower rates of cancer following venous thromboembolism (VTE) than previously described. OBJECTIVES: To reassess the risk of cancer in patients with clinical symptoms of VTE with or without confirmed VTE. PATIENTS: We used data from OPTIMEV, a French prospective multicenter observational study of patients presenting to hospital and community vascular medicine specialists with suspected VTE. Patients with confirmed VTE (1565) and matched controls without VTE (1847) were followed for 3 years (2006-2009). The main outcome was occurrence of cancer at 3 years, and death was a censoring event. RESULTS: A total of 5.0% [4.0-6.3] of patients with VTE and 3.8% [3.0-4.9] without VTE developed cancer during follow-up. The adjusted hazard ratio (HR) was 1.2 [0.9-1.8] for patients with confirmed VTE (P=0.22). The overall standardized incidence ratio (SIR) was 1.4 [1.1-1.6] for our population, VTE+ and VTE-, compared with the general population, statistically significant (P<0.05). CONCLUSIONS: We found a lower occurrence of cancer after VTE than previously described, with no significant difference between patients whether VTE was confirmed or not. Our results (low incidence and no difference between patients VTE+ or VTE-) provide no argument in favor of an extensive screening for cancer in case of VTE.


Assuntos
Neoplasias/epidemiologia , Tromboembolia Venosa/epidemiologia , Idoso , Estudos de Coortes , Feminino , França/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Risco
20.
J Plast Reconstr Aesthet Surg ; 69(1): 77-83, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26559616

RESUMO

AIM: The aim of this study is to clearly define the vascularisation of the lateral paratibial septum of the leg, defining the basis for a vertical pedicled adipofascial flap harvested from the anterolateral aspect of the leg to cover pretibial soft tissue defects. MATERIALS AND METHODS: Twelve cadaver legs (eight fixed with formalin and four fresh) were dissected. The vessels running into the lateral paratibial septum were identified. The number of vessels were noted and evaluated at the lateral border of the proximal, middle and distal thirds of the leg. In addition, an angiographic study was performed on two limbs to confirm the connection between tibialis anterior artery and the overlaying fascia through these septal vessels. RESULTS: All the specimens had periosteo-septal vessels running in the lateral aspect of the tibia. The average number was 6.6. The distribution was constant in all the thirds of the leg. CONCLUSION: These data are useful to propose the harvesting technique for adipofascial flap with vertical pedicle as a suitable reconstructive option to cover pretibial soft tissue defects.


Assuntos
Fáscia/transplante , Traumatismos da Perna/cirurgia , Modelos Anatômicos , Procedimentos de Cirurgia Plástica/métodos , Transplante de Pele/métodos , Retalhos Cirúrgicos/irrigação sanguínea , Artérias da Tíbia/cirurgia , Idoso , Idoso de 80 Anos ou mais , Cadáver , Feminino , Humanos , Perna (Membro) , Masculino
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA