Alternaria sensitization and allergic rhinitis with or without asthma in the French Six Cities study.

BACKGROUND: Allergic sensitization to Alternaria has been related to asthma in various studies, but its association with allergic rhinitis is still controversial. OBJECTIVES: The aim of this study was to assess at the population level the relationships in childhood between Alternaria sensitization and 'past-year rhinoconjunctivitis' (PYRC), 'ever hay fever' (EHF) and 'ever allergic rhinitis caused by allergens other than pollens' (EAR) according to the presence or the absence of asthma. METHODS: This study is part of the Six Cities Study, the French contribution to the International Study of Asthma and Allergies in Childhood (ISAAC) Phase II. Children underwent skin prick test (SPT) to Alternaria and parents filled a standardized medical questionnaire. RESULTS: Some 6726 children with a mean age of 10 years were examined. The overall prevalence of Alternaria sensitization was 2.8%, 0.8% for monosensitization. Prevalences of symptoms in sensitized children were 27.7% for PYRC, 27.0% for EHF and 30.4% for EAR. Adjusted Odds Ratios (OR) between Alternaria sensitization and allergic rhinitis phenotypes were 2.34 (95% confidence interval: 1.51-3.63) for PYRC, 2.40 (1.65-3.50) for EHF and 2.95 (2.05-4.23) for EAR. The relationship still remained in the case of monosensitization to Alternaria for both PYRC and EAR when excluding the asthmatic children [OR = 3.87 (1.54-9.78) and 2.88 (1.10-7.55) respectively]. CONCLUSION: In our population-based sample of children, we found a link between Alternaria sensitization and allergic rhinitis, independently of asthma, which is compatible with the mechanisms of deposition of Alternaria in the upper airways.

[Exposure to fine air particles and occurrence of allergic diseases: results of ISAAC-France phase 2]. / Exposition aux particules atmosphériques fines et développement des maladies allergiques de l'enfant. Résultats épidémiologiques issus de l'étude des six villes (ISAAC-2 France).

To evaluate whether fine air particles could be involved in the occurrence of atopy and allergic diseases, we performed a cross-sectional epidemiological survey involving primary schoolchildren living in six French towns with contrasted air pollution levels. Air pollution was measured during a week in the school yards and by standard air monitoring networks. Children get an examination in school looking for atopic dermatitis and bronchial hyperresponsiveness assessed by a standardized run test. Besides, parents or guardians provided past medical history and environmental data, especially on passive smoking. Overall, 5,338 children, aged 10.4 (+/-0.7) years, coming from 108 different schools and 401 different classes were included in the survey. Taking into account potential confounders, high exposure to proximity PM(2.5) was linked to a higher point prevalence of atopic dermatitis and hyperresponsiveness, to a higher cumulative prevalence of allergic asthma and a higher sensitization rate to common indoor allergens. Thus, these data suggest that chronic exposure to urban fine particles could be a risk factor for atopy, hyperresponsiveness and asthma.

[Tuberculosis epidemiology in Mayotte Island]. / Epidémiologie de la tuberculose à Mayotte.

Mayotte is a French territory island, part of the Comoros Archipelago in the Indian Ocean with 200,000 inhabitants. The tuberculosis control program started in 1976, although available epidemiological data remains incomplete. We conducted a retrospective hospital-based survey in 202 outpatients and hospital medical records from the Hospital Centre of the main city to contribute to the epidemiological evaluation of tuberculosis patterns. The tuberculosis frequency remains unchanged since 2000. It affects a young population partly coming from the other neighbouring Comoro Islands (69%) with illegal immigrate status (53% in 2004). The systematic diagnostic screening efficiency of the condition appears marginal. Pulmonary involvement is the most frequent clinical manifestation (78%), although severe extrapulmonary manifestations are not exceptional. Co-infection with HIV and multi resistance to antituberculosis agents are not frequent. Up to 60% of cases have been proven to be bacteriologically linked. The notification rate remains critically low with an estimate of 39% of notifications to the local sanitary authorities in charge of secondary cases screening. The case coverage seems limited both by low socio-economical status and poor health facility accessibility The loss of follow up is dramatically high, 41% on the overall period, and up to 51% in 2004. Our results make mandatory the reinforcement of a tuberculosis survey and control involvement within the context of this French territory. Screening, care and follow up are to be implemented particularly for vulnerable and precarious groups and for patients.

[Social and housing conditions of patients with chronic respiratory failure treated in the ANTADIR Federation]. / La vie quotidienne et sociale des patients insuffisants respiratoires chroniques sévères pris en charge dans le réseau ANTADIR.

INTRODUCTION: Chronic respiratory failure (CRF) has an impact on quality of life because of respiratory handicap. METHODS: The purpose of this study was to analyse the daily life and social activities of patients with CRF. A questionnaire was addressed to over 9000 patients being cared for in the ANTADIR homecare network, with over a 60% response rate. RESULTS: The data showed that patients were old, and frequently had comorbidity. The predominant diagnosis was chronic obstructive airways disease (COPD) and the number of women in this population continues to increase. Respiratory handicap led to a loss of autonomy, a reduction in social activity and mobility of patients, but the impact differed markedly according to the cause of the respiratory failure, as well as age and social class. A typological study of behavioural characteristics revealed three groups of patients with contrasting profiles. CONCLUSION: These results lead to recommendation for better management of social aspects of patient care in the ANTADIR network.

Evaluation of smoking cessation success in adults.

BACKGROUND: Smoking is a preventable cause of increased morbidity and mortality. Therefore, interventions have been used to assist smokers in overcoming their addiction. The aim of the study was to describe factors associated with smoking cessation, in patients applied to our smoking cessation (SC) unit in 1999, in a prospective study. METHODS: Patients were followed-up during two years. Detailed medical history, Fagerstrom test, Hospital Anxiety and Depression (HAD) scale questionnaire, Motivation scale and replacement therapy were systematically recorded. RESULTS: Three hundred patients (58% men, 42% women) applied to the SC unit from January to December 1999. The mean age was 42 yrs old. They smoked in average 24 cig/d. Mean duration of smoking was 20 years. Fagerstrom score was 5.86 (min 0; max: 10). Patients seemed to be more anxious (score 9.6) than depressed (5.09), according to the HAD score. 79% of them received both psychosocial intervention, pharmacotherapy and nicotine replacement therapy. 66% of patients were followed-up (n=198). Two years later, the smoking cessation rate was 12% (n=36). Motivation, Fagerstrom and HAD scores were not associated with the quitting rate. Quitting rate was higher (25.9%) in patients who attempted to quit smoking for the first time than in others (19%). By contrast, the quitting rate was significantly associated with age (P=0.03). CONCLUSION: Success to quit smoking was positively associated with age, and negatively with alcohol dependence.

[Development of a questionnaire concerning the knowledge of COPD]. / Développement d'un questionnaire de connaissances sur la BPCO.

INTRODUCTION: The level of a patient's knowledge about his disease and its treatment is an essential part of an educational assessment. It is useful therefore to make use of a rapid, easy and valid method to collect the information necessary to develop an educational programme adapted to the needs of the patient. The aim of this study is to validate, in a structured way, a knowledge questionnaire on chronic obstructive pulmonary disease (COPD). METHODS: Following a revue of the literature an initial questionnaire was constructed. It included of four domaines: biomedical aspects; symptoms and signs of severity; general knowledge and treatments. The questionnaire was tested on 35 subjects with COPD in order to assess its clarity and comprehensibility. It was reviewed and modified in both content and format by 11: French experts. The reproducibility was studied by repeat testing. RESULTS: The first version of the questionnaire developed by the working party consisted of 50 items. It was reduced to 41 items after interviews with 35 COPD patients and evaluation by 11 experts. The questionnaire appeared to be reproducible: mean concordance 79.5%; minimum 53.3%; maximum 100% and intra-class correlation coefficient 0.53. CONCLUSION: This study lead to the development of a French language COPD knowledge questionnaire.

[Therapeutic education of COPD patients: what does the general practitioner say? Results of an automatic speech study analysis]. / L'éducation thérapeutique du patient atteint de BPCO: le discours du médecin généraliste. Résultats d'une étude d'analyse automatique du discours.

INTRODUCTION: Education in COPD is clearly recommended. The general practitioner (GP) plays a key role in COPD management, and his view on education in medicine is crucial for him to implement it. This work aims at exploring what is the GP's representation of education in COPD. METHODS: Twenty-seven GP were enrolled in this qualitative research focused on three points: "COPD patient", "COPD patient's education", "tools in COPD patient education". The interviews processing has been carried out by an ALCESTE software (Analysis of Co-occurrent Lexemes in the Simple Terms of a Text) that extracts the key significant structures of a text. RESULTS: Actually, the GPs do not really speak about therapeutic education, they have a rather fuzzy representation of it. They face, in their daily practice, a lack of patients' awareness of the disease, they call to mind an educational model group close to the Alcoholics Anonymous (AA), and the most adequate location for this education looks to be, for them, the hospital. The emotional dimension is noticed, targeted atthe patient and his family circle. In their relationship with their patients, the GPs describe their part as more prescriptive than educative. CONCLUSION: The GPs' speech analysis shows that education is not a part of their COPD management; the results of our study enable us to foresee the actions to carry out to develop the concept of COPD education in general practice.

[Asthma education - the patient's response. The results of an automated analysis of an interview]. / L'éducation thérapeutique: le discours du patient asthmatique. Résultats d'une étude d'analyse automatique du discours.

INTRODUCTION: Asthma education is a subject of topical interest and is included in the current guidelines. Everyone agrees on the importance of the concepts of the disease in determining the patient's therapeutic behaviour but there have been few studies of the patient's views on asthma education. METHODS: 42 asthmatics replied to an interview bearing on the following themes: asthma in daily life, therapeutic education and methods of education. The interviews were analysed by the ALCESTE software programme (analysis of co-occurrent lexemes in the simple wording of a text) that extracts the major significant components of a text. RESULTS: The first theme was dominated by thoughts about treatment, long term rather than acute, and by problems of everyday life and relationships with others; the second by the organisation, presentation and form of education and the third by thoughts about the information required, its relevance and implications. CONCLUSIONS: Asthmatic patients' concepts of therapeutic education are poorly defined. There expectations are implicit but they are not fully aware of them. Clarifying these factors will be a way of creating a better basis for an educational programme.

Increased prevalence of asthma and allied diseases among active adolescent tobacco smokers after controlling for passive smoking exposure. A cause for concern?

BACKGROUND: Whereas effects on allergic and respiratory health have been established for passive tobacco smoking, contradictory results still exist for active tobacco smoking. OBJECTIVE: Whether adolescents with asthma and allied diseases have higher rates of active smoking compared with adolescents without asthma was assessed after controlling for environmental tobacco smoking exposure. METHODS: A population-based sample of 14,578 adolescents was enrolled in an epidemiological survey on allergies in France. RESULTS: After controlling for age, sex, geographic region, familial allergy and passive smoking, current (in the past year) wheezing (12.4%), current asthma (5.6%), lifetime asthma (12.3%), current rhinoconjunctivitis (13.9%), lifetime hayfever (14.4%) and current eczema (9.3%) but not lifetime eczema (22.5%) were all significantly related to active smoking (>1 cigarette/day) (9.3%). A higher risk of current wheezing, current and lifetime asthma or current eczema was seen in smokers exposed to passive smoking compared with smokers not exposed to it using a polychotomous logistic regression model, in which the different modalities of exposure to active and passive smoking constituted the response variable. Passive smoking was significantly associated only with current diseases. Active smoking was also highly related to both severe asthma (OR=4.02; 95% confidence interval: 1.37, 11.79) and severe rhinoconjunctivitis (OR=2.95; 1.58, 5.49). The highest rate of adolescents suffering from the co-morbidity of lifetime asthma and hayfever (3.6%) was also seen in active smokers compared with passive and non-smokers (5.5% vs. 3.6% and 3.1%, respectively; P=0.001). CONCLUSIONS: Being asthmatic or allergic does not seem to act as a deterrent towards starting active smoking or continuing to smoke in adolescence. Results suggest the need for considering individual allergic status in programming health educational activities aimed at reducing smoking among adolescents.

Quality of life in lung cancer: does disclosure of the diagnosis have an impact?

BACKGROUND: Quality of life (QOL) is an important component of evaluation in oncology. Usually, QOL is used in phase III studies to compare two treatments. The aim of this trial was to evaluate the impact of the disclosure of the diagnosis of cancer on QOL by using the European Organisation for Research and Treatment of Cancer core Quality of Life Questionnaire (EORTC QLQ)-C30 questionnaire and the supplemental lung cancer-specific module QLQ-LC13. PATIENTS AND METHODS: Patients hospitalised for exploration of an abnormal chest X-ray, with no previous history of cancer, a performance status < or =2, and able to fulfil the questionnaire were eligible. The patients answered the questionnaire two times: before (Q1) and after (Q2) the disclosure of the diagnosis. RESULTS: Seventy patients answered at Q1 and Q2. After the disclosure, some scores deteriorated: arm pain (P=0.009), physical functioning (P=0.01), role functioning (P=0.008), emotional functioning (P=0.0001) and social functioning (P=0.012), whereas the patients' own assessment of global QOL (item global QOL in functioning scales) did not show the same evolution. CONCLUSION: Disclosure of the diagnosis had an impact on social and emotional QOL. Patients with lung cancer need psychological support at the beginning of their disease.

Unexpected effects of inhaled fluticasone in an HIV patient with asthma.

International guidelines recommend prescription of inhaled corticosteroids to improve asthma control. Chronic secondary adrenal suppression due to inhaled corticosteroids has been described. We report a case of acute adrenal suppression due to drug interaction between Fluticasone and antiretroviral therapy in a HIV patient. Seeing an increased prevalence of hyperresponsiveness among HIV-infected men, we conclude that coprescription of Fluticasone and highly active antiretroviral therapy must be carefully controlled.

Lower respiratory tract infections in adults: non-antibiotic prescriptions by GPs.

BACKGROUND: The AIR II study is a prospective multicentre assessing management of lower respiratory tract infections (LRTIs) in adults by general practitioners (GPs). Epidemiological studies generally address the prescriptions of antibiotics. To our knowledge, little is known about the real impact of non-antibiotic therapeutic prescriptions (defined here as co-prescriptions) in LRTI. Therefore, the aim of the study was to evaluate non-antibiotic prescriptions in LRTIs. METHODS: Two thousand general practitioners (GPs) were randomly selected and asked to participate in each of 30 predefined areas covering mainland France. The patient's sociomedical record was completed by the GP during the consultation and sent to the data processing centre at the same time as an anonymous copy of his prescription. The GP also had to report the inclusion by telephone and agree to a telephone appointment with an interviewer. RESULTS: GPs (n = 3144) reported 5469 evaluable cases. Pneumonia accounted for 9.6% of diagnoses, acute exacerbations of chronic bronchitis 14.9% and acute bronchitis 72.5%. Antibiotics were prescribed to 96.5% of patients. In addition to the 5270 prescriptions of antibiotics, co-prescriptions proved to be twice as numerous as prescriptions of antibiotics (10,027 prescriptions for 5115 patients). Mucomodifiers, steroidal anti-inflammatory drugs and bronchodilators were significantly more prescribed in AECB than others. Non-steroidal anti-inflammatory drugs and antitussives were significantly more prescribed in acute bronchitis than AECB or CAP. CONCLUSIONS: Our results suggest that recommendations of management in LRTIs need to take into account co-prescriptions.

[Smoking, asthma and associated phenotypes. An epidemiological approach]. / Tabagisme, asthme et phénotypes associés. Approche épidémiologique.

INTRODUCTION: The relationship between the respiratory tract and the environment is complex and is based on the dynamic interaction between genetically determined host-defence mechanisms and the toxicity of inhaled pollutants. STATE OF ART: Although the World Health Organisation has decreed that smoking is an avoidable cause of premature death, the epidemiological evaluation of the effects of smoking remains problematical. Indeed, basing assessment on duration of habit and quantity smoked may be miscalculating the true burden of the effects of smoking. Smoking, as a risk factor, is all too often perceived to be confined to development of chronic obstructive pulmonary disease. The consequences of passive smoking on children respiratory health have been established. In adults, active smoking has been related to asthma severity. Recent data demonstrate an effect of passive smoking on the incidence of asthma in adults. PERSPECTIVES: Objective markers of smoking are rarely used in epidemiological studies of asthma. CONCLUSIONS: However, the paucity of published studies linking smoking with asthma should not immediately lead to the conclusion that there is not a causal relationship.

Asthma phenotypes according to the timing of smoking onset in young adults.

SETTING: Whether and how cigarette smoking influences asthma are still matters of debate. OBJECTIVE: To identify risk factors associated with asthma according to whether individuals began active smoking before or after asthma onset. DESIGN: A sample of 544 individuals was examined using the protocol of the European Community Respiratory Health Status, Phase 1. RESULTS: Current active smoking (43.6%) was associated with wheezing during the past year (15.2%, OR 3.7; 95% CI 1.7-8.4), but not with asthma (17.6%, OR 0.78; 95% CI 0.48-1.26). However, active smoking modulated risk factors for asthma. Asthma that developed before smoking and asthma without smoking were both significantly related to nasal allergy, parental asthma and atopy (as assessed by skin prick test positivity and increased total and specific IgE levels). Only a lower FEV1 level was significantly associated with asthma that initiated after beginning smoking. CONCLUSIONS: Our data put forward different phenotypes of asthma according to the timing of smoking onset and suggest that asthma either never accompanied by smoking or followed by smoking onset might be characterised by an allergic pattern. Longitudinal studies are warranted to further clarify the relationships among asthma phenotypes according to the sequence of disease onset and smoking.

[Therapeutic education of the asthmatic patient: the presentation of the general practitioner]. / L'éducation thérapeutique de l'asthmatique: le discours du médecin généraliste.

INTRODUCTION: Therapeutic education is part of the recommendations for management of asthmatics. The general practitioner (GP) is an essential link in the management and his/her presentation of education plays an important role in how it is received. This study examines the presentation of therapeutic education by GP's. METHODS: 21 GP's took part in a qualitative enquiry bearing on the following themes: "the asthmatic" and "education of the asthmatic patient". The interviews were analysed by the ALCESTE software programme (Analysis of co- occurrent leximes in the wording of a text) which allows the extraction of the major significant structures of a text. RESULTS: It was found that GP's associate therapeutic education with education in general. They evoke self-teaching tools while they retain the group as the most relevant structure. The notions of time and background treatment were separated. The idea of patient autonomy did not appear spontaneously in the discussion even though it is the foundation of the concept. Analysis of the discussion illustrates the gap that exists between the concepts upon which the recommendations are based and presentation of therapeutic education to asthmatics by GP's. CONCLUSION: Training of GP's appears to be an essential condition for the development of therapeutic education.

[Validation of an asthma knowledge questionnaire]. / Validation d'un questionnaire de connaissances sur l'asthme.

INTRODUCTION: A patient's knowledge of his disease and its treatment is an essential part of the evaluation of an educational process. It is useful therefore to use a rapid, easy and valid means of collecting the information necessary to produce an educational programme adapted to the needs of the patient. METHODS: Following a review of the literature an initial questionnaire was constructed. It included four domains: biomedical, signs and symptoms of severity, general knowledge and treatment. The questionnaire was administered to 73 asthmatics in order to assess its clarity and comprehensibility. It was then reviewed and modified in both format and content by 10 French experts. The revised questionnaire was completed by 108 asthmatics distributed throughout 10 French respiratory centres, a group of 83 non-asthmatic subjects and 203 sixth year medical students at the Bordeaux University School of Medicine. RESULTS: The mean scores were: 19 for the non-asthmatics (range 2-36), 25.7 for the asthmatics (range 4-38) and 32.9 for the students (range 17-40), p 0.0001. The questionnaire was shown to be discriminating with good reliability and reproducibility: alpha Cronbach coefficient=0.82; intra-class correlation coefficient=0.70. CONCLUSIONS: This study has validated a French language asthma knowledge questionnaire.

Detection of circulating cells expressing chromogranin A gene transcripts in patients with lung neuroendocrine carcinoma.

High grade lung neuroendocrine carcinomas, like small and large cell neuroendocrine carcinomas, pose therapeutic problems. Most initially respond to chemotherapeutic agents, but early relapses are frequent and are resistant to the presently available treatments. Our study reports for the first time the development and evaluation of a test for detecting the presence of circulating tumour cells by measuring chromogranin A gene transcripts with reverse transcriptase-polymerase chain reaction (RT-PCR) and Southern blotting. The test is specific and sensitive (detection of 10 cancer cells/ml blood), and only minimally invasive. Positivity is statistically correlated to high grade neuroendocrine carcinomas and to a poor prognosis with a 3-fold higher lethal risk. The test now needs to be assessed for its usefulness as a tool in the initial staging procedures and follow-up by comparison with the recent immunoradiometric assay (RIA) for detection of chromogranin A in the serum.

Acute asphyxia caused by Gerhardt's syndrome associated with asthma.

Vocal cord dysfunction (VCD) has been frequently discussed as confounding the diagnosis of asthma, and it is recommended to examine vocal cord function in cases of difficult asthma. However, there is also strong evidence that asthma may be associated with VCD, sometimes masquerading as exercise-induced asthma. Gerhardt's syndrome frequently induces severe acute respiratory distress requiring ventilatory support, and this condition might be mistaken for a severe acute asthma attack. Here, a case of bilateral paralysis of the vocal cords, which was associated with asthma, is described.