Patricia Delafosse

Centre Hospitalier Universitaire de Nantes, Naoned, Pays de la Loire, France

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Publications (46)99.99 Total impact

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    ABSTRACT: The objective of this work was to detail the incidence and mortality trends of invasive and in situ breast cancer (BC) in France, especially regarding the development of screening, over the 1990-2008 period. Data issued from nine population-based cancer registries were studied. The incidence of invasive BC increased annually by 0.8 % from 1990 to 1996 and more markedly by 3.2 % from 1996 to 2003, and then sharply decreased until 2006 (-2.3 % per year), especially among women aged 50-69 years (-4.9 % per year). This trend was similar whatever the introduction date of the organized screening (OS) program in the different areas. The incidence of ductal carcinoma in situ steadily increased between 1990 and 2005, particularly among women aged 50-69 years and 70 and older. At the same time, the mortality from BC decreased annually by 1.1 % over the entire study period. This decrease was more pronounced in women aged 40-49 and 50-69 and, during the 1990-1999 period, in the areas where OS began in 1989-1991. The similarity in the incidence trends for all periods of implementation of OS in the different areas was striking. This suggests that OS alone does not explain the changes observed in incidence rate. Our study highlights the importance of closely monitoring the changes in incidence and mortality indicators, and of better understanding the factors causing variation.
    Breast Cancer Research and Treatment 08/2014; · 4.47 Impact Factor
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    ABSTRACT: The aim of this study was to draw a picture of diagnostic assessment and patterns of care for rectal cancer in France using population-based registries data. The study included a random sample of 669 cases of rectal cancers diagnosed in 2005. Diagnostic assessment was performed by colonoscopy in 91.4% of the cases. An abdominal computed tomography was performed in 59.4% of the cases and chest computed tomography in 47.8%. An R0 resection was performed in 65.8% of cases and an R1/R2 resection in 16.1%. A rectal endosocography was performed in 40.4% and MRI in 10.4%. The sphincter was preserved in 73.6% of patients aged younger than 75 years of age and in 62.5% of those older than 75 years of age (P=0.002). In cases of R0 resection, neoadjuvant radiotherapy was performed in 47.8% of patients younger than 75 years of age and in 34.1% of older patients (P=0.007). Postoperative chemotherapy was administered in 23.9% of stage II and 67.8% of stage III resected patients. The management of rectal cancers can be improved. Preoperative staging has not reached its full development; very few patients received neoadjuvant treatment, whereas adjuvant chemotherapy was often performed, although its benefit is still unclear. The management of elderly patients was less optimal than that of younger patients.
    European journal of gastroenterology & hepatology 05/2014; · 1.66 Impact Factor
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    ABSTRACT: Few studies have investigated rectal cancer management at the population level. We compared how rectal cancers diagnosed in Italy (2003-2005) and France (2005) were managed, and evaluated the extent to which management adhered to European guidelines. Samples of 3938 Italian and 2287 French colorectal cancer patients were randomly extracted from 8 and 12 cancer registries respectively. Rectal cancer patients (860 Italian, 559 French) were analysed. Logistic regression models estimated odds ratios (ORs) of being treated with curative intent, receiving sphincter-saving surgery, and receiving preoperative radiotherapy. Similar proportions of Italian and French patients were treated with curative intent (70% vs. 67%; OR=0.92 [0.73-1.16]); the respective proportions receiving sphincter-saving surgery were 21% and 33% (OR=1.15 [0.86-1.53]). In about 50% of those treated with curative intent, ≥12 lymph nodes were harvested in both countries. The proportion receiving postoperative radiotherapy was higher in Italy than in France (25% vs. 11%, p<0.01), but French patients were more likely to receive preoperative radiotherapy (52% vs. 21%; OR=4.06 [2.79-5.91]). The proportions of patients receiving preoperative radiotherapy and the numbers of lymph nodes sampled were low in both countries. Centralising treatment and potentiating screening would be practical ways of improving outcomes and adhering to guidelines.
    Digestive and Liver Disease 04/2014; · 3.16 Impact Factor
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    ABSTRACT: Position du problème Cette étude présente les estimations d’incidence et de mortalité par cancer en France entre 1980 et 2012. Méthodes Parmi les tumeurs solides, 19 localisations cancéreuses ont été analysées. Les données d’incidence proviennent de 21 registres départementaux et correspondent aux cancers invasifs diagnostiqués entre 1975 et 2009. Les données de mortalité par cancer sur cette période ont été fournies par l’Institut national de la santé et de la recherche médicale. L’estimation nationale de l’incidence est basée sur l’utilisation de la mortalité comme corrélat de l’incidence. Les données d’incidence et de mortalité ont été modélisées à l’aide d’un modèle âge-période-cohorte. Les nombres de nouveaux cas de cancer et de décès entre 2010 et 2012 sont issus de projections à court terme. Résultats En 2012, le nombre de nouveaux cas de cancer a été estimé à 355 000 et le nombre de décès par cancer à 148 000. L’évolution des taux d’incidence n’était pas linéaire sur l’ensemble de la période. Après une augmentation continue depuis 1980, l’incidence du cancer chez l’homme a diminué entre 2005 et 2012. Cette diminution récente est en grande partie liée à la baisse de l’incidence du cancer de la prostate. Chez la femme, on observe une stabilisation essentiellement due à la modification de l’évolution de l’incidence du cancer du sein. La mortalité est en diminution sur l’ensemble de la période pour la majorité des localisations. L’analyse conjointe de l’incidence et de la mortalité par localisation permet de distinguer les cancers dont l’incidence et la mortalité ont diminué (ex. : estomac) des cancers dont l’incidence et la mortalité ont augmenté (ex. : poumon chez la femme). D’autres cancers combinent une augmentation de l’incidence et une diminution de la mortalité (ex. : thyroïde). Conclusion Ce travail met en évidence des modifications récentes et marquées de l’évolution de l’incidence, plus particulièrement pour les cancers du sein et de la prostate.
    Revue d Épidémiologie et de Santé Publique 01/2014; · 0.69 Impact Factor
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    ABSTRACT: OBJECTIVE: The association between body mass index (BMI) and the risk of oral cavity cancer, suggested by the few available studies, is controversial because of weight loss preceding cancer diagnosis and possible confounding by tobacco and alcohol consumption. The aim of this study was to evaluate in France, a high-incidence country, the association between the risk of oral cavity cancer and body mass index at interview, 2 years before the interview and at age 30, as well as BMI change. METHODS: We used data from a population-based case-control study, the Investigation of occupational and environmental CAuses of REspiratory cancers study, with personal interviews and standardized questionnaires including 689 cases of oral cavity squamous cell carcinoma and 3,481 controls. Odds ratios (ORs) and 95 % confidence intervals (95 % CI) were estimated by unconditional logistic regression and were adjusted for gender, age, area of residence, education, tobacco smoking, and alcohol drinking. RESULTS: ORs were increased in underweight subjects at interview (OR 6.25, 95 % CI 3.74-10.45). No association with underweight 2 years before the interview and at age 30 was found. Overweight and obesity at interview, 2 years before the interview and at age 30 were associated with decreased ORs (ranging from 0.13 to 0.60). BMI gain greater than 5 % between age 30 and 2 years before the interview was inversely associated with oral cavity cancer (OR 0.42, 95 % CI 0.33-0.54). These associations were stronger in men, and in smokers and drinkers. CONCLUSION: These results add further support to the existence of a reduced risk of oral cavity cancer among overweight and obese people or among people who increased their BMI in adulthood. The underlying mechanisms remain to be clarified.
    Cancer Causes and Control 05/2013; · 3.20 Impact Factor
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    ABSTRACT: PURPOSE: Biological markers are crucial factors in order to differentiate female breast cancers and to determine the right therapy. This study aims at evaluating whether testing for biomarkers for female breast cancer has similar frequency and characteristics across and within countries. METHODS: Population-based cancer registries of the Association for cancer registration and epidemiology in Romance language countries (GRELL) were asked to complete a questionnaire on biomarkers testing. The data collected referred to invasive female breast cancer cases diagnosed between 2004 and 2009. The investigation focused on 1) the overexpression and amplification of the human epidermal growth factor receptor 2 oncogene (HER2); 2) the expression of oestrogen (ER) and progesterone (PgR) receptors; and 3) the proliferation index (PI). Weighted percentages, the heterogeneity among and within countries, and the correlation between responses and calendar years were evaluated. The study was based on 19,644 breast cancers. RESULTS: Overall, 85.9% of the cases were tested for HER2, 91.8% for both ER and PgR, and 74.1% for proliferative markers. For HER2 and ER-PgR, the frequency of testing increased from 2004 to 2009. Testing varied among countries (HER2 from 82.0% to 95.9%, ER-PgR from 89.3% to 98.9%, PI from 10% to 92%) and also within the same country (e.g. HER2 in Italy from 51% to 99%) as well as within single cancer registries. The most relevant differences were in the scores for positive/negative/not clearly defined HER2 (e.g. HER2 was defined positive if IHC 3+ in 21/33 registries), and in the cut-off of positive cells for ER/PgR (from >0% to >30%) and PI positivity (from >0% to >20%). CONCLUSIONS: Biological markers are widely tested in the Romance language countries; however, the parameters defining their positivity may vary, raising concerns about homogeneity in breast cancer classification and treatment.
    Breast (Edinburgh, Scotland) 05/2013; · 2.09 Impact Factor
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    ABSTRACT: Waiting times are key indicators of a health's system performance, but are not routinely available in France. We studied waiting times for diagnosis and treatment according to patients' characteristics, tumours' characteristics and medical management options in a sample of 1494 breast cancers recorded in population-based registries. The median waiting time from the first imaging detection to the treatment initiation was 34 days. Older age, co-morbidity, smaller size of tumour, detection by organised screening, biopsy, increasing number of specimens removed, multidisciplinary consulting meetings and surgery as initial treatment were related to increased waiting times in multivariate models. Many of these factors were related to good practices guidelines. However, the strong influence of organised screening programme and the disparity of waiting times according to geographical areas were of concern. Better scheduling of diagnostic tests and treatment propositions should improve waiting times in the management of breast cancer in France.
    Breast (Edinburgh, Scotland) 03/2013; · 2.09 Impact Factor
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    ABSTRACT: This study aimed to describe cancer incidence (2000-2008) and survival (2000-2004) in France in adolescents and young adults (AYA). All cases of cancer diagnosed in 15-24 years, recorded by all French population-based registries (14% of the French population), over the 2000-2008 period, were included. Incidence change over time was described with the conventional annual percentage change (cAPC). The survival of cases diagnosed (2000-2004) was estimated using Kaplan-Meier method. A total of 1022 in adolescents and 1396 in young adults were diagnosed. Overall incidence rates were 219.4/10(6) in 15-19 year olds and 293.1/10(6) in 20-24 year olds. The most frequently diagnosed cancers in male AYA were malignant gonadal germ-cell tumors and Hodgkin's disease, and were melanoma, thyroid carcinoma, and Hodgkin's disease in females. The age-standardized rates appeared stable over time in AYA, with a cAPC of +2.0% (P = 0.68). The 5-year overall survival for all cancers was different between genders and age groups, with 78.8% (95%CI: 75.6-82.0) for males and 85.2% (95%CI: 82.2-88.1) for females (P = 0.01), and 78.5% (95%CI: 75.0-82.1) in 15-19 year olds and 84.3% (95% CI: 81.6-87.0) in 20-24 year olds (P = 0.02). Noteworthy, the frequency and the distribution of tumor types in AYA are unique and different from the observed at any other age group. Survival in French AYA has improved over time. Epidemiological data might reflect major trends in the risk factors and preventive interventions. Thus, further research into etiology of cancers affecting AYA should become key priorities for cancer control among AYA.
    Pediatric Hematology and Oncology 01/2013; · 0.90 Impact Factor
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    ABSTRACT: The objective was to examine the role of tobacco smoking and alcohol drinking in the incidence of oral cavity cancer by subsite in France, a high-incidence area. We analysed detailed data on lifelong tobacco smoking and alcohol drinking from 772 oral cavity cancer cases and 3555 controls included in a population-based case-control study, the ICARE study. Tobacco smoking increased the risk of oral cavity cancer even for the smaller quantities and durations, whereas alcohol drinking increased this risk only in heavy drinkers who were also ever smokers. The combined effect of smoking and drinking was greater than multiplicative. The floor of the mouth was the subsite that was the most affected by the harmful effects of tobacco and alcohol, whereas the gums were less susceptible. The risk associated with tobacco and alcohol consumption did not differ between intraoral cavity and subsites usually included in the oropharynx (soft palate and base of the tongue). Population-attributable risks for oral cavity cancer were 78.6% for tobacco smoking, 7.3% for alcohol drinking and 80.7% for tobacco and/or alcohol consumption. These results indicate that regular oral check-ups should be targeted at smokers and heavy drinkers, and that prevention efforts should be focused on smoking cessation.
    European journal of cancer prevention: the official journal of the European Cancer Prevention Organisation (ECP) 09/2012; · 2.21 Impact Factor
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    ABSTRACT: BACKGROUND AND AIMS: In France, participation in organized colorectal cancer screening remains low. The objective of this study was to identify the determinants of participation in colorectal cancer screening in Isère, a French administrative entity. METHODS: This study examined the target population invited for screening between 2007 and 2008 in Isère. The statistical analysis method was based on a two-level logistic regression model: the first was the individual level relative to the individuals invited for screening and the second was an aggregate level corresponding to the socioeconomic level of an invited person's residence area (IRIS: "Ilot regroupé pour l'Information Statistique"; Regrouped statistical information block). The evaluation of the socioeconomic level was based on the Townsend deprivation. RESULTS: Participation varied depending on sex, age, and health insurance plan. The people residing in the least deprived IRISes participated more than individuals residing in the most deprived IRISes. The multilevel analysis showed a 24% difference in participation between the least and the most deprived IRISes. CONCLUSIONS: The use of socioeconomic data on the IRIS geographical unit has identified, socially and geographically, the populations that participate the least, although this reflects "mean" behaviors. These results could be used to set up targeted actions to encourage participation in these populations.
    Gastroentérologie Clinique et Biologique 06/2012; · 0.80 Impact Factor
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    ABSTRACT: A major French chlorine chemical plant (chlor-alkali process with diaphragm cell and manufacturing of organochlorine chemicals) has used or produced known or suspected carcinogenic compounds. A cohort study, based on the plant occupational health service and the regional cancer registry, analyzed the standardized incidence ratios of malignant tumors for the period 1979-2002. Individual exposures were estimated from workers' occupational histories in a dual division of jobs into 9 sectors and 115 workshops with known exposures. Men (2,742) were followed, corresponding to 52,794 person-years. Primary tumors (304) were observed for 290 expected cases, a non-significant 5% excess. A significant excess was found of pleural mesothelioma and bladder cancer in employees hired before 1964. Excesses of mesothelioma and bladder cancer were found, whereas there was no excess of hematopoietic cancers despite high benzene and dioxin exposures. Surprisingly, mesothelioma cases did not include workers who were the most exposed to asbestos.
    American Journal of Industrial Medicine 06/2012; 55(9):756-67. · 1.97 Impact Factor
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    ABSTRACT: We had for objective to describe the updated epidemiology of oral cancers in France. Estimates made from data collected from various French cancer institutions. The distribution by topography, histology, regions, mean age, and specific incidence rates were calculated from the collected data. The survival data was taken from the Francim network studies. Approximately 7000 oral cavity cancers were diagnosed in France in 2005. In 2007, 1746 people died of that cancer. Standardized (world population) incidence rates are respectively, in men and women, 12.3 and 3.0 cases per 100,000 person-years. These cancers have significantly decreased in men: the standardized incidence rate decreased by 43.2% between 1980 and 2005. Among women, the trend is reversed with an increased incidence of 51.7% over the same period. In France, the incidence of oral cavity cancers has been strongly decreasing in men and strongly increasing in women. This trend should be compared to the frequency of the main risk factors: alcohol and tobacco.
    Revue de stomatologie et de chirurgie maxillo-faciale 06/2011; 112(3):164-71. · 0.35 Impact Factor
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    ABSTRACT: The incidence of female lung cancer in developed countries has been increasing since 1950. In order to have recent and reliable data on the association between cigarette smoking and the risk of lung cancer in women, we analysed cases from a French population-based case-control study. The ICARE study is a multicenter case-control study on respiratory cancers (lung and UADT cancers), set up in 10 départements that include a general cancer registry. We included 648 women lung cancer cases up to 76 years of age, with a histologically confirmed primary lung cancer. The 775 controls were randomly selected from the general population and frequency-matched with cases by age and département. Overall, smoking cigarettes at some time was associated with a 8-fold increase in lung cancer risk (OR=8.2, 95% CI 6.0-11.4). A dose-response relationship was observed as a function of duration, intensity and pack-years. Using restricted splines cubic models, we have shown that intensity dose-response departed significantly from linearity while the risk increased linearly with duration and decreased linearly with time since cessation. The following characteristics were associated with a higher relative risk: smoke inhalation, smoking non-filter cigarettes, smoking dark tobacco cigarettes and starting at a young age. In addition, duration, intensity and time since cessation was significantly related with histological type. This was not the case for characteristics such as the use of a filter or not, the inhalation pattern, or the type of tobacco smoked. The proportion of lung cancer cases attributable to cigarette smoking was 55% (95% CI: [47-63%]). Our results confirm that cigarette smoking is by far the most important cause of the current epidemic of lung cancer among French women and that the most important smoking-related variables for varying the risk of lung cancer are the duration, the intensity and the time since cessation.
    Lung cancer (Amsterdam, Netherlands) 05/2011; 74(3):369-77. · 3.14 Impact Factor
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    ABSTRACT: The objective of this study is to determine whether the likelihood of returning for routine breast cancer screening differed for false-positive cases depending on the diagnostic work-up. Using the original data from a French population-based breast cancer screening program, we compared the attendance rates at the subsequent round of screening for 16,946 and 1,127 participants who received negative (i.e., American College of Radiology, ACR, categories 1-2) and false-positive mammograms, respectively. False-positive mammograms were categorized ACR 0 (i.e., warranting additional imaging evaluation), 3 (i.e., warranting clinical and imaging follow-up), and 4-5 (i.e., warranting biopsy). We estimated the odds ratios of attendance at subsequent screening round using logistic regression, adjusting for age and history of previous mammography. The attendance rates at the subsequent screening round were 80.6% for women who received negative mammograms versus 69.6, 74.3, and 70.1% for women who received false-positive mammograms warranting additional imaging evaluation, clinical and imaging follow-up, or biopsy, respectively. In comparison to women who received negative mammograms, the corresponding adjusted odds ratios of returning for routine screening were 0.6 [95% confidence interval (CI) 0.4-0.8], 0.8 (95% CI 0.6-0.9), and 0.6 (95% CI 0.4-0.8). No significant differences were found in odds ratios of attendance across ACR categories among women who received false-positive mammograms. Similar figures were observed for attending at least one of the two subsequent screening rounds. In conclusion, in comparison to women with normal or benign findings on index mammograms, false-positive cases warranting additional imaging evaluation, clinical and imaging follow-up, or biopsy had uniformly decreased odds of attending subsequent routine screening rounds.
    Breast Cancer Research and Treatment 05/2011; 127(1):221-8. · 4.47 Impact Factor
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    ABSTRACT: Over the 1998-2002 period, some French Départements have been shown to have the world's highest incidence of upper aerodigestive tract (UADT) cancers in men. The objectives were to describe the changes in UADT cancer incidence in France over the 1980-2005 period, present projections for 2010, and describe the anatomical and histological characteristics of these tumours. The trend of cancer-incidence over 1980-2005 and projection up to 2010 were obtained using age-period-cohort models (data from eleven cancer registries) and incidence/mortality ratios in the area covered by these registries. The description of UADT cancers by anatomical and histological characteristics concerned data collected between 1980 and 2004 in eleven cancer registries. In men, cancer incidence decreased in all cancer sites and the world-standardized incidence rates decreased by 42.9% for lip-oral cavity-pharynx (LOCP) cancers and 50.4% for larynx cancer. In women, the world-standardized incidence rates increased by 48.6% for LOCP cancers and 66.7% for larynx cancer. Incidence increased the most for oropharynx, palate, and hypopharynx cancers. Incidence analysis by one-year cohorts revealed a progressive shift of the incidence peak towards younger and younger generations, with no change as yet in the mean age at diagnosis. In France, the incidence of these cancers is still higher than in other European and North American countries. This urges actions towards reducing the major risk factors for those cancers, namely alcohol and tobacco consumption, especially among young people, and reducing exposure to risk factors due to social inequalities.
    Oral Oncology 03/2011; 47(4):302-7. · 2.70 Impact Factor
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    ABSTRACT: The hypothesis of a link between breast cancer and hormone replacement therapy (HRT) is evoked to explain the recent decrease of incidence observed in several countries. The purpose of our study is to analyse the evolution of breast cancer incidence by stage. Materials and methods: We used data from Tarn and Isère French cancer registries for the period 1990-2007. Trends of annual world population standardised incidence rates were studied using the Joinpoint method. From 1990 to 1999, the incidence of invasive breast cancer increased annually by 1.2%, then by 4.8% from 1999 till 2003 and then decreased by 1.7%. For the women aged 50-74 years, annual changes were, respectively, 1.5%, 6.0% and 3.4%. In this group, the incidence of T1/T2-N0-M0 stages increased annually by 4.6% until 2003 and then decreased by 2.2%. Since 1990, the incidence of in situ breast cancer increased annually by 5%. From 2003 to 2004, prescribing of HRT decreased substantially. : Since 2003, the incidence of invasive breast cancer decreased for women aged 50-74 years, mainly involving T1/T2-N0-M0 stages. The reduction in HRT prescription may partly explain this decrease. The incidence of in situ breast cancer didn't decrease during the whole period.
    Annals of Oncology 02/2011; 22(2):329-34. · 7.38 Impact Factor
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    ABSTRACT: Although clinical trials have demonstrated that adjuvant chemotherapy improves survival for stage-III colon cancer, the benefits remain controversial for stage-II lesions. The objective of the present study was to determine the extent to which adjuvant chemotherapy is used for patients with stage-II and -III colon cancers. The study population comprised 1074 patients with stage-II and -III colon cancers diagnosed in 2000 in 12 French administrative districts and recorded in population-based cancer registries. Data were collected using a standardized procedure. Overall, 20.4% of patients with stage II and 61.9% with stage III received adjuvant chemotherapy. Age at diagnosis was the strongest determinant of chemotherapy. Among stage-II patients, those receiving chemotherapy decreased from 57.6% in patients aged <or=50 years to 1.1% in those aged >or=85. The corresponding percentages with stage III were 93.6% and 1.4%. In multivariate analyses, other factors found to be independently and significantly associated with administration of adjuvant chemotherapy for stage II were extension of the cancer (stage IIA vs. stage IIB), clinical presentation (obstruction or perforation vs. uncomplicated cancer) and discussion of the case at a multidisciplinary case-review meeting. For stage III, apart from age, discussion of the case at a multidisciplinary meeting was the only factor independently associated with administration of chemotherapy. Adjuvant chemotherapy for stage-III colon cancer is used extensively for patients under 75 years of age. However, many elderly patients do not receive such treatment. On the other hand, a substantial percentage of stage-II colon cancer patients receive adjuvant chemotherapy despite its uncertain benefits.
    Gastroentérologie Clinique et Biologique 02/2010; 34(2):144-9. · 1.14 Impact Factor
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    ABSTRACT: Intrahepatic cholangiocarcinoma (ICC) is a rare tumor with a poor prognosis. The aim of this study was to evaluate current management and prognosis of ICC in nine French administrative areas, which are covered by population-based cancer registries. Between 1997 and 1998, 1100 cases of primary liver cancer were observed in nine French departments: 68 were ICC. Clinicopathological characteristics and applied treatments were recorded and a comparative analysis and a 5-year survival study were performed. In most cases (85%), the presence of symptoms was the principal mode of discovery. Histological confirmation revealed ICC in two thirds of cases. The remaining liver was normal in 72% of cases (patients with cirrhosis: 12%). The mean size of tumours was 6 cm. Metastases were present in one out of four cases. Surgical management, chemotherapy and radiotherapy were performed in 40%, 20% and 11.5% of patients, respectively. Hepatic surgical resection was correlated with age and bilirubin level. One third of the patients were treated for symptoms. Five-year survival rate was 7.4% and median survival was 7 months. Patients with hepatic surgical resection had 5-year survival rate of 24.5%. At present, complete resection is the only therapy offering possible long-term survival in this entity. New adjuvant chemotherapy after surgery must be offered to these patients.
    Gastroentérologie Clinique et Biologique 08/2009; 33(10-11):971-6. · 1.14 Impact Factor
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    ABSTRACT: The evolution of pleural cancers and malignant pleural mesothelioma incidence in France between 1980 and 2005 was analysed using data derived from the French network of cancer registries (FRANCIM) and the French National Mesothelioma Surveillance Program (PNSM). Mesothelioma proportions in pleural cancers were calculated by diagnosis year in the 1980-2000 period. Our results suggest that the incidences of pleural cancer and mesothelioma levelled off in French men since 2000 and continued to increase in French women. A decrease of the annual pleural cancer incidence average in men was noticed (-3.4% of annual rate of change) between 2000 and 2005. The proportion of pleural cancers that were mesothelioma was unchanged between 1980 and 2003 with an average of 86%. The age standardised incidence rate of pleural mesothelioma remained relatively stable between 1998 and 2005 with a slight falling trend. For women, the age standardised incidence rate of pleural cancers and mesothelioma increased during the period 1998-2005. Additionally, the proportion of pleural cancers that were mesothelioma increased during the same period of time. Finally, the increased trend observed in the incidence of pleural mesothelioma and cancers in women is credibly due to their under diagnosis in the 1980-1997 period. The comparison between the French incidence and the American and British ones shows that the decreasing trend in incidence of mesothelioma and pleural cancers in French men since 2000 is potentially associated with a lower amphibole consumption and by the implementation of safety regulations at work from 1977.
    International Journal of Cancer 07/2009; 126(1):232-8. · 6.20 Impact Factor
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    ABSTRACT: The objective of this study was to evaluate the risk for cancer patients of developing a new primary invasive cancer. Using data from a French Cancer Registry, we included 14,353 cancer patients (breast, colorectal or prostate cancer) diagnosed between 1989 and 1997. Observed second cancers occurring during the first 5 years after the first cancer were compared with the expected number, based on primary cancer incidence rate, by the standardized incidence ratio (SIR). Breast cancer patients had significantly elevated SIR for contralateral breast cancer (SIR=1.7), kidney cancer (SIR=3.5) and myeloid leukaemia (SIR=8.3). Patients diagnosed with colorectal cancer had significantly elevated risk for small intestine (SIR=10.7) and colorectal cancer (SIR=1.6). Young age at diagnosis of breast and colorectal cancers was associated with risk of a second cancer. After prostate cancer, men had no greater risk of cancer, except for kidney cancer. Our results help to direct attention to regions especially vulnerable to secondary cancers after primary breast or colorectal cancer.
    European journal of cancer prevention: the official journal of the European Cancer Prevention Organisation (ECP) 06/2009; 18(5):343-8. · 2.21 Impact Factor