Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 101
Filtrar
Más filtros

Banco de datos
País/Región como asunto
Tipo del documento
Intervalo de año de publicación
1.
Hum Reprod ; 28(10): 2872-9, 2013 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-23838160

RESUMEN

STUDY QUESTION: What is the incidence of medical consultation for fecundity problems in the French population, taking into account pregnancy occurrence and resumption of contraceptive use?. SUMMARY ANSWER: Considering the occurrence of a pregnancy and resumption of use of contraception as competing risks, the cumulative incidence rate of medical consultation for fecundity problems was 9.0% [95% confidence interval (CI): 6.5%; 11.9%] after 12 months of unprotected intercourse and 12.2% [95% CI: 9.6%; 15.3%] after 24 months. WHAT IS KNOWN ALREADY: Estimates of the prevalence of medical consultation due to involuntary infertility among couples who have sought a pregnancy for more than 12 months range from 25 to 50%. Most of the studies however are limited by retrospective data collection, without considering the duration of time since the beginning of the period of unprotected intercourse (PUI) and without considering medical consultation for fecundity problems as a competing risk. STUDY DESIGN, SIZE, DURATION: This study is based on the Observatory of Fecundity in France survey, a population-based probability survey designed to estimate the frequency of involuntary infertility on a nationwide basis and to explore the associations with environmental factors. Women answered two telephone questionnaires, the first at the time of enrolment in 2007, the second at follow-up 1 year later. The current analysis was performed among a subsample of 6577 women recruited before or during a PUI and followed-up for 1 year. PARTICIPANTS/MATERIALS, SETTING, METHODS: The study sample comprised 940 women aged 18-44 years who had a PUI between the time of enrolment and the 1-year follow-up, and who had not consulted a physician for fecundity problems for the current PUI prior to enrolment. Women reported all the medical consultations they had because of difficulties becoming pregnant during the current PUI. The date of each consultation was carefully assessed. In France, women can consult a gynaecologist directly without referral by their general practitioner. The occurrence of a pregnancy and resumption of contraceptive use were considered as informative censoring events, using a competing risk model. MAIN RESULTS AND THE ROLE OF CHANCE: Using the competing risk survival model, the cumulative incidence rate of first consultation was 9.0% [95% CI: 6.5%; 11.9%] 12 months after the start of the PUI and 12.2% [95% CI: 9.6%; 15.3%] after 24 months. The Kaplan-Meier method, which does not take competing risks into account, yielded substantially higher estimates: 26.0% [95% CI: 18.8%; 32.5%] at 12 months and 56.8% [95% CI: 44.2%; 66.6%] at 24 months. Among the 219 women who had attempted to become pregnant for at least 12 months, cumulative incidences of first medical consultations were 28.2% [18.7-38.9%] 24 months after the start of the PUI, and 31.2% [21.3- 42.4%] after 36 months. The rates were higher among nulliparous but non-nulligravid women, followed by nulligravid women, as compared with parous women. Age was not strongly related to the occurrence of medical consultation. LIMITATIONS, REASONS FOR CAUTION: The main limitation of this study is the number of women lost to follow-up (29.7%). In addition, results regarding the absence of an age effect should be taken with caution as few women in our study were aged over 35 years. Although such an attrition rate is commonly observed in prospective studies in the general population, it could have induced a selection bias that may have led to an underestimation of the rates of medical consultation. Sensitivity analyses, using the inverse probability weighting method suggest that our results are unlikely to be biased. WIDER IMPLICATIONS OF THE FINDINGS: This study reveals frequencies of medical consultation for fertility problems, which, after considering competing events such as pregnancy in a relevant statistical model, are lower than generally reported in the literature. The results also indicate the existence of a difference between the potential need and the actual use of medical care for fecundity problems. This suggests a need for studies to look for factors other than medical recommendations that may play a role in the patterns of medical seeking behaviours for fecundity problems, such as women's reproductive history, socio-economic characteristics or accessibility to infertility services. STUDY FUNDING/COMPETING INTEREST(S): The study was funded by grants from ANR (French Agency for Research, SEST call on Environmental and Occupational Health), ANSES (French Agency for Food, environmental and Occupational Health Safety, EST call on Environmental and Occupational Health), InVS (French Institute for Public Health Surveillance). The team of Environmental Epidemiology applied to Fecundity and Reproduction has been funded by an AVENIR grant from Inserm (2007). Authors declare no conflict of interest.


Asunto(s)
Fertilidad , Infertilidad/epidemiología , Derivación y Consulta/estadística & datos numéricos , Adolescente , Adulto , Estudios de Cohortes , Francia/epidemiología , Humanos , Factores de Tiempo
2.
Eur J Neurol ; 20(12): 1539-45, 2013 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-23834402

RESUMEN

BACKGROUND AND PURPOSE: The aim of this study was to assess the effect of Tafamidis, which slows the progression of early stages of Met30 transthyretin (TTR) familial amyloidosis polyneuropathy (FAP) in more advanced cases. METHODS: The study was a prospective, non-randomized controlled trial carried out at the French national reference centre for FAP with follow-up at 1 year. Thirty-seven consecutive Met30-TTR-FAP patients were enrolled between December 2009 and July 2011, with NIS-LL (Neuropathy Impairment Score-lower limbs) > 10 and Karnofsky score > 60. Their mean (SD) age was 56.4 (19) years. Seventy-seven per cent of patients had a walking disability. Seven patients (19%) were withdrawn for adverse effects. The primary study outcome measurements, planned before data collection began, were NIS-LL and NIS-UL (upper limbs) scores and disability scores. RESULTS: Of the 37 patients entered into the study, 29 were evaluated at 6 months and 13 at 12 months. During the first 6 months of treatment, the mean progression of NIS-LL score was 4.8 and was similar to that during the period before treatment. Among the 45% of patients without NIS-LL progression, the NIS-UL score worsened in 55%. During the first year, 55% deteriorated with respect to disability and 38% with respect to NIS only; only two patients (7%) remained stable. Four (out of 20; 20%) patients who were previously stage 1 reached stage 2 (walking with aid) after this period. Two out of nine patients who were initially normotensive developed orthostatic hypotension. There were a total of 19 adverse events, including four febrile urinary tract infections and three severe diarrhoeas, with faecal incontinence in two. CONCLUSION: In most patients with advanced Met30 TTR-FAP, Tafamidis is not able to stop disease progression, in respect of both NIS-LL and disability. Other anti-amyloid medicines should be assessed in this context.


Asunto(s)
Neuropatías Amiloides Familiares/tratamiento farmacológico , Benzoxazoles/uso terapéutico , Anciano , Progresión de la Enfermedad , Humanos , Persona de Mediana Edad
3.
Hum Reprod ; 27(5): 1489-98, 2012 May.
Artículo en Inglés | MEDLINE | ID: mdl-22416008

RESUMEN

BACKGROUND: Assessing couple fecundity on a nation-wide basis without excluding couples who eventually remain infertile is challenging. Our aim was to describe couple fecundity (in terms of frequency of involuntary infertility) among the general population living in France. METHODS: We used a current-duration design. A random sample of 64 262 households was selected in 2007-2008, allowing us to identify 15 810 women aged 18-44 years. Eligible women (n= 1089) were those having regular sexual intercourse with a male partner, not using any method of contraception and not having delivered in the previous 3 months. These women reported information on the current duration of unprotected intercourse (CDUI, the time elapsed between the start of the period of unprotected intercourse and the time of inclusion in the study). The CDUI distribution was used to estimate the frequency of involuntary infertility, using a newly developed statistical technique that does not require couples to be followed up until the end of the period of unprotected intercourse. RESULTS: CDUI was defined for 867 women. An estimated 46% of couples had no detected pregnancy conceived during the first 6 months of unprotected intercourse [95% confidence interval (CI), 36-56%]. The proportions of couples with no detected pregnancy within 12 and 24 months were 24% (19-30%) and 11% (8-14%), respectively. CONCLUSIONS: These results constitute one of the few descriptions of the fecundity of a nation-wide representative sample of couples from the general population, not limited to couples who eventually conceived or to those resorting to medical help.


Asunto(s)
Infertilidad Femenina/epidemiología , Adolescente , Adulto , Femenino , Francia/epidemiología , Humanos , Conducta Reproductiva , Factores de Tiempo
4.
Neuroradiology ; 54(10): 1171-8, 2012 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-22732908

RESUMEN

INTRODUCTION: The potential of diffusion tensor imaging (DTI) to detect spinal cord abnormalities in patients with multiple sclerosis has already been demonstrated. The objective of this study was to apply DTI techniques to multiple sclerosis patients with a recently diagnosed spinal cord lesion, in order to demonstrate a correlation between variations of DTI parameters and clinical outcome, and to try to identify DTI parameters predictive of outcome. METHODS: A prospective single-centre study of patients with spinal cord relapse treated by intravenous steroid therapy was made. Patients were assessed clinically and by conventional MRI with DTI sequences at baseline and at 3 months. RESULTS: Sixteen patients were recruited. At 3 months, 12 patients were clinically improved. All but one patient had lower fractional anisotropy (FA) and apparent diffusion coefficient (ADC) values than normal subjects in either inflammatory lesions or normal-appearing spinal cord. Patients who improved at 3 months presented a significant reduction in the radial diffusivity (p = 0.05) in lesions during the follow-up period. They also had a significant reduction in the mean ADC (p = 0.002), axial diffusivity (p = 0.02), radial diffusivity (p = 0.02) and a significant increase in FA values (p = 0.02) in normal-appearing spinal cord. Patients in whom the American Spinal Injury Association sensory score improved at 3 months showed a significantly higher FA (p = 0.009) and lower radial diffusivity (p = 0.04) in inflammatory lesion at baseline compared to patients with no improvement. CONCLUSION: DTI MRI detects more extensive abnormalities than conventional T2 MRI. A less marked decrease in FA value and more marked decreased in radial diffusivity inside the inflammatory lesion were associated with better outcome.


Asunto(s)
Imagen de Difusión por Resonancia Magnética/métodos , Esclerosis Múltiple/diagnóstico , Esclerosis Múltiple/tratamiento farmacológico , Enfermedades de la Médula Espinal/diagnóstico , Enfermedades de la Médula Espinal/prevención & control , Esteroides/uso terapéutico , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Esclerosis Múltiple/complicaciones , Reproducibilidad de los Resultados , Sensibilidad y Especificidad , Enfermedades de la Médula Espinal/etiología , Resultado del Tratamiento , Adulto Joven
5.
Pediatr Radiol ; 47(5): 630, 2017 05.
Artículo en Inglés | MEDLINE | ID: mdl-28271217
6.
Int J Androl ; 34(5 Pt 2): e499-510, 2011 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-21831232

RESUMEN

To assess the incidence and risk factors of cryptorchidism in Nice area. A 3-year prospective study was conducted at two maternity wards involving neonatal screening of boys born ≥34weeks of amenorrhoea. Methodology was strict with examination at birth, 3 and 12months by the same paediatrician. Two strictly matched controls were included for each case. Information on child and parents (medical history, pregnancy, lifestyle) was recorded using medical chart and self-administered questionnaires. A total of 102 of 6246 boys were born with cryptorchidism (prevalence 1.6%, 95 included). Half of them were still cryptorchid at three and 12months with, however, 10% of secondary re-ascent (recurrent cryptorchidism) at 12months, justifying long-term follow-up. Cryptorchidism at birth was associated with instrumental delivery, inguinal hernia and urogenital malformations, particularly micropenis and paternal history of cryptorchidism. Our results suggest that maternal exposure to anti-rust or phthalates could be a risk factor, whereas eating fruits daily seemed somewhat protective. Prevalence of cryptorchidism in our area is on the lower bracket compared with other countries, and is associated with both familial and environmental risk factors.


Asunto(s)
Criptorquidismo/epidemiología , Estudios de Casos y Controles , Criptorquidismo/etiología , Femenino , Francia/epidemiología , Humanos , Lactante , Recién Nacido , Masculino , Exposición Materna/efectos adversos , Embarazo , Prevalencia , Estudios Prospectivos , Factores de Riesgo
7.
Endoscopy ; 43(3): 208-16, 2011 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-21365514

RESUMEN

BACKGROUND AND STUDY AIMS: Endoscopic stenting is a recognized treatment of postcholecystectomy biliary strictures. Large multicenter reports of its long-term efficacy are lacking. Our aim was to analyze the long-term outcomes after stenting in this patient population, based on a large experience from several centers in France. METHODS: Members of the French Society of Digestive Endoscopy were asked to identify patients treated for a common bile duct postcholecystectomy stricture. Patients with successful stenting and follow-up after removal of stent(s) were subsequently included and analyzed. Main outcome measures were long-term success of endoscopic stenting and related predictors for recurrence (after one stenting period) or failure (at the end of follow-up). RESULTS: A total of 96 patients were eligible for inclusion. The mean number of stents inserted at the same time was 1.9±0.89 (range 1-4). Stent-related morbidity was 22.9% (n=22). The median duration of stenting was 12 months (range 2-96 months). After a mean follow-up of 6.4±3.8 years (range 0-20.3 years) the overall success rate was 66.7% (n=64) after one period of stenting and 82.3% (n=79) after additional treatments. The mean time to recurrence was 19.7±36.6 months. The most significant independent predictor of both recurrence and failure was a pathological cholangiography at the time of stent removal. CONCLUSION: Endoscopic stenting helps to avoid surgery in more than 80% of patients bearing postcholecystectomy common bile duct strictures. However, a persistent anomaly on cholangiography at the time of stent removal is a strong predictor of recurrence and may lead to consideration of surgery.


Asunto(s)
Conductos Biliares/patología , Colecistectomía/efectos adversos , Constricción Patológica/etiología , Constricción Patológica/terapia , Stents , Cateterismo , Colangiopancreatografia Retrógrada Endoscópica , Colecistectomía Laparoscópica/efectos adversos , Constricción Patológica/diagnóstico por imagen , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Recurrencia , Estudios Retrospectivos , Factores de Tiempo , Insuficiencia del Tratamiento , Resultado del Tratamiento
8.
Rev Neurol (Paris) ; 167(12): 897-904, 2011 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-22023823

RESUMEN

BACKGROUND: The optimal treatment for demyelinating neuropathy associated with MGUS and anti-MAG neuropathy is not known. METHODS: We retrospectively studied the efficacy of IVIg in 14 patients with DN-MGUS (seven IgM and seven IgG/A) and seven with anti-MAG neuropathies, treated in our reference center between 2002 and 2007. Patients were clinically evaluated before the first infusion, after the first infusion, and after the last IVIg treatment. RESULTS: Anti-MAG neuropathy: after a single infusion, one patient improved and six were stable. At last follow-up (mean: 15.6months [range: 3.5-31], mean number of IVIg courses: 8 [2-33]), one patient maintained her improvement from baseline. DN-MGUS: after a single infusion, nine patients improved (64%), four were stable and one deteriorated further. The factor predictive of short-term response to IVIg was relapsing neuropathy responding better in the walking score analysis (Fisher exact test: P=0.005). At last follow-up (mean: 22.6months [range 2-72], mean number of IVIg courses: seven [1-24]), neurological status improved in four patients, five patients remained stable, including three who are still under regular IVIg, and four had deteriorated. Improvement from baseline persisted for a prolonged period in two patients after IVIg were stopped. Patients who were responders on Norris after the first IVIg course were significantly better responders at long-term follow-up than the others (P=0.001). We report no serious adverse effect. CONCLUSION: IVIg are not very efficient in the management of anti-MAG neuropathies. Nevertheless, they have a frequent short-term beneficial effect in DN-MGUS, which was maintained at long-term follow-up in one-third of our patients. When a DN-MGUS patient is regularly treated by IVIg courses, frequent periodic clinical evaluations must be performed to determine when to stop treatment and switch to another one.


Asunto(s)
Enfermedades Desmielinizantes/tratamiento farmacológico , Inmunoglobulinas Intravenosas/uso terapéutico , Gammopatía Monoclonal de Relevancia Indeterminada/tratamiento farmacológico , Adulto , Anciano , Anciano de 80 o más Años , Enfermedades Desmielinizantes/complicaciones , Femenino , Estudios de Seguimiento , Hospitales , Humanos , Inmunoglobulinas Intravenosas/administración & dosificación , Bombas de Infusión , Masculino , Persona de Mediana Edad , Gammopatía Monoclonal de Relevancia Indeterminada/complicaciones , Estudios Retrospectivos , Factores de Tiempo , Resultado del Tratamiento
9.
Reprod Biomed Online ; 20(1): 132-7, 2010 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-20158998

RESUMEN

Microinjection of nuclear vacuole-free spermatozoa selected by motile sperm organellar morphological examination (MSOME) has been claimed to enhance assisted reproduction treatment outcome compared with intracytoplasmic sperm injection. However, the nature of these nuclear vacuoles is unclear, since their localization at the front of the sperm head suggests they might be of acrosomal origin. To study this hypothesis, acrosomal status was evaluated using Pisum sativum agglutinin staining on a smear, together with sperm organellar morphological examination using the same optics as for MSOME on 30 sperm samples from infertile patients, yielding >3200 spermatozoa. Vacuoles were present in 61% of spermatozoa when acrosomal material or intact acrosomes were observed, versus 29% when spermatozoa were acrosome reacted (P<0.0001). Induction of the acrosomal reaction by ionophore A23587 from 17.4% to 36.1% significantly increased the percentage of vacuole-free spermatozoa from 41.2% to 63.8% (P<0.001). These data suggest that most nuclear vacuoles are of acrosomal origin. Hence, the best spermatozoa selected by MSOME are mostly acrosome-reacted spermatozoa. As microinjection of spermatozoa with a persistent acrosome drastically hampers embryo development in animal models, this suggests that the improvement in pregnancy rates reported following intracytoplasmic injection of morphologically selected sperm might be due to the procedure allowing injection of acrosome-reacted spermatozoa.


Asunto(s)
Acrosoma/ultraestructura , Núcleo Celular/ultraestructura , Infertilidad Masculina/patología , Motilidad Espermática/fisiología , Espermatozoides/ultraestructura , Vacuolas/ultraestructura , Reacción Acrosómica/efectos de los fármacos , Desarrollo Embrionario , Femenino , Humanos , Infertilidad Masculina/fisiopatología , Infertilidad Masculina/terapia , Ionóforos/farmacología , Masculino , Embarazo , Índice de Embarazo , Técnicas Reproductivas Asistidas , Estudios Retrospectivos , Análisis de Semen/métodos , Inyecciones de Esperma Intracitoplasmáticas , Resultado del Tratamiento
10.
Rev Epidemiol Sante Publique ; 58(2): 101-10, 2010 Apr.
Artículo en Francés | MEDLINE | ID: mdl-20207090

RESUMEN

BACKGROUND: The prevalence of poor reading skills is particularly high among children from low socioeconomic backgrounds, but no longitudinal studies have been conducted so far in France to determine whether poor reading in a socioeconomically challenged population is persistent and warrants preventive action. DESIGN: One hundred and fifty-four children were divided into three groups according to their reading skills: poor, intermediate and typical readers. They were followed over a period of 2 years. Reading levels, spelling and comprehension were assessed by standardized measurement scales in order to determine reading outcome and predictive variables. RESULTS: The reading skills in each group progressed at similar rates, but the differences between the three groups remained relatively constant over the 2 years. The gap between good and poor readers actually increased for the poorest readers. Spelling scores followed a similar pattern and remained weak. Comprehension scores followed a different pattern. Most of the initially poor readers with low comprehension scores almost caught up and reached the level of the typical readers. The best predictive variables of reading and spelling outcome were phonological awareness, rapid naming and attention deficit. The strongest predictive variables for comprehension were IQ, lexical level and attention. CONCLUSIONS: Our results confirm the relative stability of reading measurement across time in poor readers from low socioeconomic backgrounds. Their behavior are similar to the classic dyslexic population. The predictive variables are different depending on whether reading or spelling or comprehension is considered. These results provide a clear agenda for preventive literacy action in children with low socioeconomic levels (SES): phonological decoding and oral language skills in early grades, and screening and treatment of attention disorders.


Asunto(s)
Trastorno por Déficit de Atención con Hiperactividad/complicaciones , Inteligencia , Trastornos del Desarrollo del Lenguaje/etiología , Discapacidades para el Aprendizaje/etiología , Pobreza , Lectura , Trastorno por Déficit de Atención con Hiperactividad/diagnóstico , Trastorno por Déficit de Atención con Hiperactividad/prevención & control , Niño , Conducta Infantil/psicología , Cognición , Comprensión , Estudios Transversales , Escolaridad , Estudios Epidemiológicos , Femenino , Humanos , Trastornos del Desarrollo del Lenguaje/diagnóstico , Trastornos del Desarrollo del Lenguaje/epidemiología , Trastornos del Desarrollo del Lenguaje/prevención & control , Discapacidades para el Aprendizaje/diagnóstico , Discapacidades para el Aprendizaje/epidemiología , Discapacidades para el Aprendizaje/prevención & control , Estudios Longitudinales , Masculino , Tamizaje Masivo , Paris/epidemiología , Pobreza/psicología , Pobreza/estadística & datos numéricos , Prevalencia , Factores de Riesgo , Índice de Severidad de la Enfermedad
11.
Rev Epidemiol Sante Publique ; 57(3): 191-203, 2009 Jun.
Artículo en Francés | MEDLINE | ID: mdl-19398285

RESUMEN

BACKGROUND: Reading impairment is the major learning disability in children. While research on illiteracy has mainly been conducted from a sociological perspective, research on dyslexia has typically been studied from a cognitive-linguistic perspective. Studies that jointly investigate sociological, behavioral and cognitive factors in predicting reading outcome are rare and limited to English-speaking populations. The goal of the present study was to screen second grade children with reading impairment in French urban elementary schools and to pin down the factors that explain the various facets of reading failure and success. METHODS: A total of 1062 children from 20 different schools in the city of Paris participated in the study. Different aspects of reading were assessed individually for children with a suspected impairment in reading acquisition. Subsequently, 131 poor readers and 50 typically developing readers were matched for sex, age, and school. For these children, medical, cognitive, behavioral and individual socioeconomic data were obtained. Group differences were examined and multiple regression analyses were conducted to examine how much variance in reading was explained by the various variables. RESULTS: The prevalence of poor reading skills in grade 2 was highly influenced by neighborhood socioeconomic status (SES) (ranging from 3.3% in high SES to 20.5% in low SES areas). Among the SES variables, employment of the father was a significant predictor of poor reading. Among the cognitive variables, phonological awareness and rapid naming were the most significant factors, much more than verbal or nonverbal intelligence. Among the behavioral variables, attention was an important factor but not externalized symptoms. Multiple regression analyses showed that reading outcome was best predicted by phonological awareness skills and attention deficits. CONCLUSION: The majority of children with reading disability come from low SES areas. As in the English literature, the most robust predictor for reading impairment is phonological awareness, even when SES is taken into account. In addition, attention deficits seemed to aggravate reading impairments for children with weak phonological awareness skills. Successful early prevention should focus on reinforcing phonological awareness, recoding and attention skills.


Asunto(s)
Conducta , Cognición , Dislexia/epidemiología , Pobreza/estadística & datos numéricos , Estudiantes/estadística & datos numéricos , Trastorno por Déficit de Atención con Hiperactividad/epidemiología , Niño , Estudios de Cohortes , Dislexia/complicaciones , Dislexia/diagnóstico , Femenino , Humanos , Pruebas del Lenguaje/estadística & datos numéricos , Masculino , Paris/epidemiología , Prevalencia , Análisis de Regresión , Características de la Residencia , Muestreo , Instituciones Académicas/estadística & datos numéricos , Factores Socioeconómicos
12.
Gynecol Obstet Fertil ; 36(9): 840-7, 2008 Sep.
Artículo en Francés | MEDLINE | ID: mdl-18707911

RESUMEN

OBJECTIVE: Numerous maternal lipophilic compounds are eliminated into milk during lactation, their concentrations reflecting fetal in utero exposure. Some of them are endocrine disruptors. Their role in the occurrence of genital malformation, dysfunction or cancer has been suggested. We wanted to study the exposure of our population and its potential association with cryptorchidism, as few clinical studies are available. PATIENTS AND METHODS: Over three years, we screened for cryptorchidism all boys born alive at or above 34 weeks of gestational age, in two maternity wards (CHU Nice, CHG Grasse). Cryptorchid boys were matched with two controls. Nursing mothers provided a colostrum sample that was screened for 15 compounds known for their antiandrogenic and/or anti estrogenic properties, including dichloro-diphenyl-trichloro-ethylene (DDE), polychlorinated biphenyls (PCBs), dibutylphthalate (DBP) (& metabolite monobutylphthalate-mBP) and hexachlorobenzene (HCB). RESULTS: Out of 6246 boys, 102 were cryptorchid (1.6%). All available colostrums (56 for cryptorchid and 69 for controls) were contaminated. Median concentrations of DDE, PCBs, HCB and phthalates were higher though not significantly in cryptorchid versus controls. Cryptorchid boys were more likely to be classified in the most contaminated groups for DDE and SigmaPCBs, with a trend for mBP. Odds ratio (OR) for cryptorchidism was increased for the highest score of SigmaPCB, with a trend only for DDE versus the lowest score of those components. Our results are similar to those of a Scandinavian study with comparable design. DISCUSSION AND CONCLUSIONS: Our results show the universal contamination of milk with endocrine disruptors in our area, and support the association between congenital cryptorchidism and fetal exposure to PCBs and possibly DDE, alone or in association with other chemicals.


Asunto(s)
Calostro/química , Criptorquidismo/inducido químicamente , Exposición Materna/efectos adversos , Leche Humana/química , Plaguicidas/toxicidad , Adulto , Estudios de Casos y Controles , Criptorquidismo/epidemiología , Diclorodifenil Dicloroetileno/análisis , Diclorodifenil Dicloroetileno/toxicidad , Contaminación Ambiental , Femenino , Humanos , Recién Nacido , Masculino , Plaguicidas/análisis , Bifenilos Policlorados/análisis , Bifenilos Policlorados/toxicidad
13.
Arch Pediatr ; 15(6): 1049-57, 2008 Jun.
Artículo en Francés | MEDLINE | ID: mdl-18424086

RESUMEN

OBJECTIVE: Socioeconomic status (SES) has a known influence on academic achievement. Most studies, however, were conducted in English-speaking countries. Because recent cross-linguistic studies suggest that reading English is much harder to learn than reading other languages, an epidemiological study was conducted in French investigating the impact of socioeconomic background on early reading development. DESIGN: One thousand and twenty second-grade children (476 girls and 544 boys) from 20 different schools participated in the study. Approximately 1/3 of the children lived and were schooled in a high SES area, 1/3 in an intermediate SES area, and one final third in a very low SES area. Assessment of reading, writing and mathematical skills was conducted initially in small groups. Children with suspected learning difficulties were further tested individually. Forty-two children of equivalent age who repeated the first grade received similar individual testing. RESULTS: Average reading scores were in accordance with chronological age, without gender differences. Children from low SES schools had academic performances significantly lower than their peers. Boys exhibited superior arithmetic skills than girls. A significant reading delay was observed in 12.7% of children. The prevalence of poor reading was highly correlated with the area of schooling, varying from 3.3% in the high SES area to 24.2% in low SES area. CONCLUSION: The high rate of children from our sample with a significant delay in reading depended on general socioeconomic environment. An understanding of the origin of such differences is mandatory for defining and coordinating preventive actions and appropriate interventions.


Asunto(s)
Dislexia/epidemiología , Niño , Evaluación Educacional , Femenino , Francia/epidemiología , Humanos , Masculino , Prevalencia , Factores Socioeconómicos
14.
Arch Pediatr ; 15(6): 1058-67, 2008 Jun.
Artículo en Francés | MEDLINE | ID: mdl-18456475

RESUMEN

OBJECTIVE: From an original large sample of 1062 7 to 8-year-old children, reading skills were assessed and found to be highly linked with socioeconomic status (SES). The purpose of the present study was to further determine underlying medical, sociocultural, cognitive and behavioural factors explaining the diversity of reading skills and the influence of SES. METHOD: Individual testing among low-SES children identified 100 poor readers, 50 typical readers and 31 children with intermediate reading scores. All 3 groups underwent a thorough assessment, including a medical evaluation, a full cognitive battery, a structured parental interview and behavioural questionnaire. Logistic regression was used to demonstrate the variables predicting reading score outcome. RESULTS: None of the medical factors studied was statistically related to reading scores. Due to the methodology buffering the impact of SES sociocultural variables, such as parental levels of education, parental occupation, as well as familial income were weak, but statistically significant predictors. The strongest variables were phonological abilities and symptoms of attention disorders. In a final regression model, phonological awareness, level of mother's education and attention explained the differences in reading skills. CONCLUSIONS: These results, which are unique in France, are similar to existing data in the literature. They support the need to conceptualize an early screening programme to detect reading difficulties and to promote an intervention based on phonological processing and decoding in low-SES environments.


Asunto(s)
Dislexia/etiología , Pruebas de Aptitud , Trastornos de la Articulación/complicaciones , Trastorno por Déficit de Atención con Hiperactividad/complicaciones , Niño , Estudios Transversales , Escolaridad , Femenino , Humanos , Masculino , Análisis Multivariante , Encuestas y Cuestionarios
15.
J Neurol ; 254(12): 1684-8, 2007 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-18074076

RESUMEN

BACKGROUND: Familial amyloid polyneuropathies (FAP) patients manifest progressive sensory-motor length dependent polyneuropathy and severe autonomic dysfunction. In this setting the autonomic manifestations include mainly postural hypotension, nausea and vomiting, diarrhea and constipation, sphincter distur- bances and erectile dysfunction. Reproducible quantitative evaluation of signs and symptoms are necessary for the assessment of treatment efficacy. OBJECTIVE: To determine the reliability of a new compound test cumulating evaluation of autonomic and sensorymotor dysfunction in FAP. METHODS: Compound Autonomic Dysfunction Test (CADT) is a new questionnaire to evaluate the main symptoms of autonomic dysfunction observed in FAP. A separate functional questionnaire assesses the disability due to the sensorymotor deficit (Modified Norris Test; MNT). The compound test takes approximately 10 minutes to perform. In this prospective study, we enrolled consecutively 60 FAP patients to test interexaminer reliability, i.e., both questionnaires rated independently by 2 examiners. We also evaluate the reliability of testing patients face to face and by phone call, by the same examiner. RESULTS: Interexaminer reliabilities tested were high (ICC=0.92 for the CADT, p < 0.001; and ICC = 0.99 for the MNT, p < 0.001). In addition, testing by phone as compared to testing during the initial medical visit by the same investigator gave similar results (ICC = 0.91 for the CADT, p < 0.001; and ICC = 0.98 for the MNT, p < 0.001). CONCLUSION: In FAP, the CADT and the MNT have good reliability inter-investigators as well as between face to face and by phone call, by the same examiner. This newly designed compound test is a simple and reproducible scale which is adapted to evaluate the main neuropathic manifestations and will be useful for assessment of future treatments in this condition.


Asunto(s)
Neuropatías Amiloides Familiares/complicaciones , Enfermedades Autoinmunes/diagnóstico , Enfermedades Autoinmunes/etiología , Trastornos de la Destreza Motora/diagnóstico , Trastornos de la Destreza Motora/etiología , Índice de Severidad de la Enfermedad , Adulto , Anciano , Neuropatías Amiloides Familiares/genética , Estudios de Evaluación como Asunto , Femenino , Humanos , Entrevistas como Asunto , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Calidad de Vida , Reproducibilidad de los Resultados , Encuestas y Cuestionarios
16.
Neurochirurgie ; 63(5): 381-390, 2017 Nov.
Artículo en Francés | MEDLINE | ID: mdl-28527519

RESUMEN

OBJECTIVES: Intramedullary gliomas are rare tumors accounting for less than 4% of all primary central nervous system tumors. The aims of this retrospective multicenter study were to assess their natural outcome as well as management. METHODS AND MATERIALS: We studied 332 patients from 1984 to 2011. Histopathological examination revealed 72% ependymomas (94% were low grade tumors), 24% astrocytomas (29% were high grade tumors), 2.4% mixed gliomas and 1.7% oligodendrogliomas. RESULTS: The mean age at diagnosis was 42.4 years for ependymomas, with male predominance, versus 39.6 years for astrocytomas. Pain was the most common initial presentation. In 20% of cases, astrocytomas were biopsied alone, but more than 80% of ependymomas had surgical resection. Radiotherapy and chemotherapy were reserved for malignant tumors, especially if they were ependymomas. The 5-year survival rate was 76.8% for astrocytomas and 94.5% for ependymomas. Histology, functional status prior to surgery, and tumor grade are among the prognostic factors. CONCLUSION: Our study showed that surgical treatment of gliomas is well codified, at least for ependymomas, but adjuvant treatment continues to play a marginal role in the management even in astrocytomas, which are infiltrative tumors.


Asunto(s)
Glioma/terapia , Neoplasias de la Médula Espinal/terapia , Adulto , Femenino , Glioma/diagnóstico , Glioma/patología , Humanos , Masculino , Estudios Retrospectivos , Neoplasias de la Médula Espinal/diagnóstico , Neoplasias de la Médula Espinal/patología
17.
Arch Pediatr ; 13(1): 23-31, 2006 Jan.
Artículo en Francés | MEDLINE | ID: mdl-16271450

RESUMEN

INTRODUCTION: The BREV battery (Battery for rapid evaluation of cognitive functions) is a tool which can be used for the rapid neuropsychological evaluation of children aged between 4 and 9 years. OBJECTIVES: After standardization (700 unaffected children) and validation by comparison with a reference battery (202 children with epilepsy), the aim of this study was further validation in 173 children with learning disorders. POPULATION AND METHODS: The study protocol included administration of the BREV, precise neuropsychological examination and evaluation of oral and written language. Statistical analysis was used to compare the findings of the BREV with those of the reference method, and the recommendations indicated by the BREV with the final diagnoses, and to define the sensitivity and the specificity of the BREV battery. RESULTS: All the correlations between BREV tests and reference tests were significant. Recommendations after the BREV were in agreement with the conclusions of the reference evaluation in 168/172 children for language, 145/173 for the psychometric evaluation. For only 4 chidren, the results of the BREV were false negative. Diagnoses corresponded in 168/173 children for oral language, in 102/110 for written language, 166/173 for praxis disorders and 157/173 for intellectual deficit. The most predictive subtests of the BREV and sensitivity and specificity of verbal and non-verbal scores were calculated. CONCLUSION: The BREV is a reliable examination, in learning disorders, to determine the most complementary investigations both in terms of language disorders and for non-verbal or global learning disabilities.


Asunto(s)
Discapacidades para el Aprendizaje/diagnóstico , Pruebas Neuropsicológicas/estadística & datos numéricos , Niño , Preescolar , Femenino , Humanos , Masculino , Valor Predictivo de las Pruebas , Psicometría , Valores de Referencia , Sensibilidad y Especificidad
18.
Rev Neurol (Paris) ; 161(3): 299-310, 2005 Mar.
Artículo en Francés | MEDLINE | ID: mdl-15800451

RESUMEN

INTRODUCTION: Up to 3 percent of the children in France present severe and specific language and/or reading disorders, despite regular remedial therapies. Few studies have measured the effectiveness of treatment administered in a specialist unit. PATIENTS AND METHOD: The aims of this study, focusing on children diagnosed as dysphasic and/or dyslexic, were: During the academic year 2001-2002, 31 children (18 dyslexic and 13 dysphasic) were attending school in our unit. The teaching program and intensive speech therapy (3 hours/week) were tailored for each child according to his/her specific disorders. Reading, spelling and numeracy developmental skills of each child were evaluated by appropriate tools at the beginning and at the end of the year. Impairment was defined by measuring the gap between the observed and the expected skills, according to each child's age. Using a self-control method, progress achieved by each child throughout the year was calculated with each tool, in each subject, by subtracting the impairments disclosed at the beginning from those disclosed at the end of the year. Progression was classified within three groups according to the progress normally expected over an academic year (i.e. nine months) from children with no disabilities attending school regularly; a progression fewer than three months was considered as no progression. Uni- and multivariate analyses including age (< or= or />9), type of pathology (dysphasia/dyslexia), and intellectual quotient (IQ) as covariates was carried out to search for independent prognosticators. RESULTS: The entire group demonstrated during the year significant progress for reading (p = 0.0001), spelling (p = 0.0001) and numeracy (p = 0.0001). Nineteen children (61 percent) showed more progress in reading than normally expected over nine months. Out of the remaining 12 children, 10 demonstrated more progress in spelling and/or numeracy than normally expected over nine months. All three reading evaluation tools disclosed a progression although one was less efficient (p = 0.05). Multivariate analysis disclosed age< or=9 and dysphasia as independent progress prognosticators. CONCLUSION: Placement in a specialist unit allows children suffering from severe dyslexia and dysphasia to lessen the gap in reading, spelling and numeracy. The two prognosticators disclosed highlight the importance of early diagnosis (i.e. before nine years old) and treatment of specific language and/or reading disorders.


Asunto(s)
Afasia/terapia , Dislexia/terapia , Trastornos del Lenguaje/terapia , Educación Compensatoria , Logopedia , Niño , Femenino , Francia , Humanos , Pruebas de Inteligencia , Masculino , Pruebas Neuropsicológicas , Pronóstico , Desempeño Psicomotor/fisiología
19.
J Gynecol Obstet Biol Reprod (Paris) ; 34(1 Pt 1): 53-61, 2005 Feb.
Artículo en Francés | MEDLINE | ID: mdl-15767918

RESUMEN

OBJECTIVE: The aim of this article is to describe conditions of abortions practices in France. MATERIALS AND METHODS: The study was based on the COCON survey. This survey was carried out among a representative sample of 2863 women aged 18 to 44 living in metropolitan France. Women were interviewed by telephone. The analysis was performed among a sub-sample of 320 women who had had an abortion between 1996 and 2000. Results were compared with those of the national notification of induced abortions. RESULTS: Altogether, the way in which abortions were carried out was appropriate, but differences were observed according to the type of hospital: access to care was easier in the private sector; however a pre-abortion interview was less often carried out and a post-abortion interview less often proposed in the private sector. Besides, in both sectors, women were rarely allowed to choose the abortion technique, or the type of anesthesia in the case of a surgical abortion. CONCLUSION: The COCON study is the first population based survey describing the characteristics of care regarding voluntary abortion. It shows the persistence of differences in practices between the public and the private sectors.


Asunto(s)
Aborto Inducido/estadística & datos numéricos , Adolescente , Adulto , Anticoncepción/estadística & datos numéricos , Femenino , Francia , Humanos , Embarazo , Encuestas y Cuestionarios
20.
AIDS ; 9(7): 735-43, 1995 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-7546419

RESUMEN

OBJECTIVE: France and Britain have similar size populations, yet the incidence of AIDS is threefold higher in France. The objective of this study was to compare data from two surveys recently performed in the two countries, in order to determine whether differences in sexual and drug-use behaviour could explain the different epidemiological patterns. DESIGN: Cross-sectional random sample surveys of France and Britain. RESPONDENTS: In France, 20,055 persons aged 18-69 years and in Britain, 18,876 persons aged 16-59 years were interviewed in 1990-1991. The following indicators were compared in the respondents aged 18-59 years: prevalence of homosexual experience and injecting drug use, number of sexual partners, prevalence of sexual practices, condom use and sex with prostitutes, age of sexual partners. RESULTS: Very similar results were found for the prevalence of male homosexual partnerships. Slightly higher numbers of lifetime partners were reported by French than British men, but no difference was found for recent periods. Anal intercourse and sex with prostitutes was more frequent among heterosexual French people than British people. Condom use was more systematic in Britain than in France. CONCLUSION: Only small differences were found between the two countries, although prevalence of risk indicators were higher in France. These differences combined with early development of prevention policies in Britain, together with the timing of virus introduction, may contribute to differences between the epidemics in the two countries.


Asunto(s)
Síndrome de Inmunodeficiencia Adquirida/epidemiología , Conducta Sexual , Síndrome de Inmunodeficiencia Adquirida/transmisión , Adolescente , Adulto , Condones , Femenino , Francia/epidemiología , Homosexualidad Masculina , Humanos , Masculino , Persona de Mediana Edad , Trabajo Sexual , Abuso de Sustancias por Vía Intravenosa , Reino Unido/epidemiología
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA