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Stratégie de dépistage du syndrome d'alcoolisation fœtale dans la communauté
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We critique published incidences for fetal alcohol syndrome (FAS) and present new estimates of the incidence of FAS and the prevalence of alcohol-related neurodevelopmental disorder (ARND). We first review criteria necessary for valid estimation of FAS incidence. Estimates for three population-based studies that best meet these criteria are reported with adjustment for underascertainment of highly exposed cases. As a result, in 1975 in Seattle, the incidence of FAS can be estimated as at least 2.8/1000 live births, and for 1979–81 in Cleveland, ∼4.6/1,000. In Roubaix, France (for data covering periods from 1977–1990), the rate is between 1.3 and 4.8/1,000, depending on the severity of effects used as diagnostic criteria. Utilizing the longitudinal neurobehavioral database of the Seattle study, we propose an operationalization of the Institute of Medicine's recent definition of ARND and estimate its prevalence in Seattle for the period 1975–1981. The combined rate of FAS and ARND is thus estimated to be at least 9.1/1,000. This conservative rate—nearly one in every 100 live births—confirms the perception of many health professionals that fetal alcohol exposure is a serious problem.Teratology 56:317–326, 1997. © 1997 Wiley-Liss, Inc.
About three days after a human egg is fertilized, it passes through the fallopian tunnel and reaches the uterus, where it spends about four days floating in the uterus’s fluids, after which it begins to implant itself into the uterine wall. By the 12th day, it is completely embedded. Prior to implantation, the embryo draws on its own reserves and those present in the fluids of the fallopian tube and uterus for sustenance. Other substances, like alcohol, may be present in these fluids, but there is little evidence these foreign substances adversely influence embryonic development.
The potential to utilize screening strategies to improve the identification and outcome of persons with fetal alcohol syndrome (FAS) is reviewed. FAS is a condition where screening and surveillance activities would be appropriate. Development of FAS screening and surveillance programs is encouraged because the disorder is expensive. People with FAS have poor outcomes as adults with less than 10% living independently. Several useful tools and models are available. Screening would improve ascertainment and prevalence estimates. Early identification could improve access to services and long term outcome, secondary disabilities and, by extension, excess disability in affected children could be decreased. Lastly, mothers who are at the highest risk to have additional children with FAS could be identified and offered treatment. While both screening and surveillance activities are discussed, the principle focus of this article is a review of the screening process. Two screening tools and several screening methodologies for FAS are available. Since no test will be appropriate in all settings, screening tests need to be selected depending on the setting and population of interest. Screening for FAS should be conducted in a variety of settings and in populations of both high and moderate risk. The results would also provide important data to influence public policy development and resource allocation. Appropriate evaluation of the efficacy, efficiency and effectiveness of FAS screening tools and methodologies would be important before utilization in screening programs.
Fetal alcohol syndrome (FAS) is an important cause of mental retardation and developmental disabilities. A population based screening tool would allow for early diagnosis and entry into intervention programs. The aim of the study was to develop a brief screening tool for use in population-based settings to improve the identification of children with FAS. The FAS Screen was developed and tested in six sites. These were sites that served children and all were located in North Dakota. Screening was completed on 1013 children, 65 were found to have a positive screening score and were referred for further investigation. Forty were seen for evaluation by a medical geneticist and six were diagnosed with FAS. The estimated values for the screening tool were: specificity 94.1%, sensitivity 100%, positive predictive value 9.1% and negative predictive value 100%. The cost of screening was $13.00 per child and the cost per case identified was $4,100. The FAS Screen is a brief screening test with acceptable performance characteristics and is cost effective.
We have conducted a new analysis of the incidence of fetal alcohol syndrome (FAS) and its economic impact based on prospectively gathered data of consecutive pregnancies. This more conservative analysis reflects our concern over possible inclusion of "false positives" in our previous estimate and now puts the overall rate in the western world at 0.33 cases per 1000. The estimate among whites is 0.29 per 1000 compared with 0.48 per 1000 for blacks. We did not include estimates for native Americans owing to the absence of prospectively gathered data on FAS for this group. Retrospective studies suggest larger disparities. Both prospective and retrospective studies may be influenced by examiner bias especially for minorities since minorities are often evaluated against standards derived from whites. Based on our estimates and the number of black and white children born each year, we estimate that about 1200 children are born with FAS each year in the United States. This is a probable lower limit based on considerations of ascertainment and absence of relevant information for other minorities such as native Americans. In calculating economic costs, we have now adjusted our estimates to take into account costs that would be incurred whether cases were FAS or not, and also have now included estimated costs for anomalies in FAS cases not considered in previous estimates. Based on these considerations, we now estimate the incremented annual cost of treating this disorder at $74.6 million. About three-quarters of this economic burden is associated with care of FAS cases with mental retardation.(ABSTRACT TRUNCATED AT 250 WORDS)
The diagnostic criteria for Fetal Alcohol Syndrome (FAS) are reviewed and the authors suggest a new diagnostic schema to allow for a more adequate description of the range of FAS. FAS is also reviewed by topic area. Associated problems believed to be caused by maternal alcohol ingestion are discussed.
Fetal alcohol syndrome (FAS) is a common developmental disability. FAS is thought to be 100% preventable. While this is a theoretical truth, a prevention rate of 100% appears unlikely in the near future. However, several prevention strategies are available. In this paper, we examine the potential cost savings from prevention of one case of FAS each year in the state of North Dakota. We utilized the North Dakota Health Claims Database to examine annual cost of health care for children birth through 21 years of age with FAS and controls. The mean annual cost of health care for children birth through 21 years of age with FAS was US2842 dollars (n=45). This is US2342 dollars per capita more than the annual average cost of care for children in North Dakota who do not have FAS (US$500 per year). Prevention of one case of FAS per year in North Dakota would result in a cost savings of US128,810 dollars in 10 years and US491,820 dollars after 20 years. After 10 years of prevention, the annual savings in health care costs alone for one case of FAS would be US23,420 dollars.
Fetal alcohol syndrome (FAS) is a common cause of birth defects and neuropsychiatric impairment. Identification of affected people is crucial for early entry into intervention programs and for the development of prevalence estimates. The objective of this project was to determine if screening for FAS in a community elementary school-based setting was feasible, to estimate prevalence in the screened population, and to determine if a screening program for FAS can be implemented using available personnel from the community. The FAS Screen was used to screen kindergarten students enrolled in a school system. Students with scores on the FAS Screen above the cutoff for a positive screen (20) were referred to one of several diagnostic clinics for evaluation. Over a 9-year period, 1384 students were screened and 69 (5%) had a positive screen (20 or above). These 69 children were then seen in a genetics/dysmorphology diagnostic clinic and 7 (10%) were found to have FAS (n=6) or partial FAS (n=1). The prevalence of affected children (FAS and partial FAS) was 1 per 198 students or 4.3 per 1000. The FAS Screen was completed annually by school staff, teachers, social workers, and psychologists. The test has acceptable epidemiologic performance characteristics in a community setting. The screening takes about 8-10 min. The procedure was well accepted in the community. This screening strategy was inexpensive to implement (less than US8.00 dollars per student), and can be easily included with the other screens completed at kindergarten entry.
Fetal alcohol syndrome (FAS) is a common developmental disorder with impairments in multiple neuropsychiatric spheres of varying severity. Few population-derived studies of the behavioral phenotype are available. The purpose of this study was to estimate the prevalence of neuropsychiatric disorders in three groups: subjects who met criteria for FAS (n=152); subjects who met criteria for partial FAS/ARND (n=150); and referred subjects who did not meet criteria for either FAS or partial FAS/ARND (n=86). Each subject had a standardized evaluation by a medical geneticist. All subjects were from North Dakota. We found increases in the prevalence rates of neuropsychiatric disorders in subjects with FAS compared to subjects with partial FAS/ARND and the lowest rates in the group that did not meet criteria for either FAS or partial FAS/ARND. Comorbid attention deficit hyperactivity disorder occurred in 73% of cases with FAS, in 72% cases with partial FAS/ARND, and in 36% subjects who did not meet criteria for either. For other neuropsychiatric disorders, a similar distribution of comorbidity was found. This study supports the concept of a continuum of impairment resulting from prenatal alcohol exposure. The presence of complex cognitive, behavioral, and physical symptomatology in the affected subjects with prenatal alcohol exposure would seem to fit well under the diagnostic rubric of fetal alcohol spectrum disorder (FASD). Diagnosis and long-term management will require increasing access to multidisciplinary child development teams including mental health professionals who treat children and adolescents. Adults will require care primarily from teams with expertise in mental health and developmental disabilities.
Fetal alcohol syndrome (FAS) is a common cause of developmental disability, neuropsychiatric impairment and birth defects. The disorder is identified by the presence of growth impairment, central nervous system dysfunction, and a characteristic pattern of craniofacial features. The reported prevalence of the disorder varies widely and recent estimates approach 1% of live births. Expression of these features varies by age. People with FAS have high rates of comorbid conditions: attention deficit hyperactivity disorder (40%), mental retardation (15-20%), learning disorders (25%), speech and language disorders (30%), sensory impairment (30%), cerebral palsy (4%), epilepsy (8-10%). Birth defects are common. In the United States, the annual birth cohort of persons with FAS could be as high as 39,000 cases annually. Cause-specific mortality is 6% for patients with FAS. The disorder is expensive to treat and most patients have lifelong impairment. The annual cost of care in the United States would approach US$5.0 billion. Early recognition and entry into appropriate treatment programs appear to improve outcome. Prevention efforts should involve screening for alcohol use prior to pregnancy and at the first prenatal care visit.
Fetal alcohol syndrome (FAS) is a common identifiable teratogenic cause of mental retardation, neurological deficit, mental disorders, and developmental disabilities. Accurate estimates of the cost of care for persons with FAS are essential for appropriate funding of health care, developmental disabilities services, special education, and other service systems, as well as prioritizing funding of public health prevention efforts. The cost of care for individuals with FAS can be conceptualized as the annual cost of care for one person or a population, or as the lifetime cost of care for an individual. Annual cost estimates for the United States range from $75 million in 1984 to $4.0 billion in 1998. Estimates of lifetime cost vary from $596,000 in 1980 to $1.4 million in 1988. After adjustments for changes in inflation and population, 2002 estimates of total annual cost and lifetime cost are higher. FAS is increasingly being recognized as a large public health problem with high potential for the prevention of future cases and for the prevention of excess disability and premature mortality in persons who are affected. Each day, from 6-22 infants with FAS are born in the United States, and as many as 87-103 more are born with other impairments resulting from prenatal alcohol exposure. Updated and improved cost data on FAS should be a research priority.
Committee to study Fetal Alcohol Syndrome, Division of Biobehavioral Sciences and Mental Disorders, Institute of Medicine
- K R Stratton
- C J Howe
- F C Battaglia
Stratton KR, Howe CJ, Battaglia FC, eds; Committee to study Fetal Alcohol
Syndrome, Division of Biobehavioral Sciences and Mental Disorders, Institute of
Medicine. Fetal alcohol syndrome: diagnosis, epidemiology, prevention, and
treatment. Washington, DC: National Academy Press; 1996.