Background
FASD includes a range of cognitive, behavioural and physical impairments that can occur due to prenatal alcohol exposure; thus, the primary prevention of FASD is prevention of prenatal exposure to alcohol. Although alcohol is toxic to all fetal cells and first trimester exposure may cause structural defects of the kidneys, heart, lungs, eyes, ears, skin and musculoskeletal system, the developing brain is particularly sensitive to alcohol throughout pregnancy.23,51 FASD is a leading, preventable cause of neurodevelopmental disability and intellectual disability, and has significant lifelong health and social impacts.1–4 Alcohol exposure at any time during pregnancy may damage the developing fetal central nervous system.52 In FASD, this results in severe and pervasive abnormalities. By definition, a diagnosis of FASD requires severe impairment in three or more domains of central nervous system structure and/or function, with or without characteristic facial features.3 Impairments may vary across the life course and include impairments in behaviour and neurocognitive functioning (most commonly attention, language, executive function), as well as difficulties in adaptive functioning or handling the demands and activities of daily life.53,54
The neurodevelopmental impairments characteristic of FASD can lead to significant social, emotional and occupational difficulties.55–58 In a study of children residing in remote WA communities, teachers reported higher rates of problematic behaviour in children with FASD compared with children without FASD.59 In that study, teachers were blinded to reports of prenatal alcohol exposure and FASD diagnoses. However, the teachers were significantly more likely to report that children with FASD had academic failure, attention problems and or talked about suicide than those without FASD.59 Recent research in Canada indicates individuals with FASD experience elevated rates of suicidal ideation and attempted suicide if they had trauma histories and impaired mood regulation.60 Individuals with FASD are at high risk of disrupted education,23 mental health problems and substance abuse,23,47,60 as well as engagement in the child welfare and justice systems.8,9,23,44,47
The impacts of FASD continue across the lifespan into adulthood, and development of a diagnostic approach that includes the identification and assessment of cognitive disability in adults is needed. It is critical that FASD diagnostic services be extended beyond the paediatric population. Interventions and support for individuals with FASD should also be made available across the lifespan, with specific focused responses to the needs of children, adolescents and adults, recognising the developmental needs in each of these phases of life. It is critical to attend to the environment where the individual with FASD lives, to provide support to those providing care and to avoid stigmatisation. In addition, interventions should focus on the brain-based nature of impairments, involve families, take a strengths-based approach and be culturally secure.45
Alcohol use in pregnancy
Alcohol consumption is common among Australian women, including women who may become pregnant. Maternal alcohol use contributes to negative outcomes for children, such as FASD, because alcohol easily crosses the placenta and is a known teratogen.3,59 National survey data suggest that approximately 50–60% of Australian women drink in pregnancy.5,6 Most pregnant women report ceasing drinking alcohol once they find out they are pregnant. However, one in four continue to drink even once they know they are pregnant. Of those who continue to drink, 96% report drinking one to two standard drinks on a typical drinking occasion.5 Higher doses of alcohol on frequent occasions constitute higher risk, but the message that ‘no alcohol is best’ during pregnancy is noted in both the Australian guide to the diagnosis of FASD and the National Health and Medical Research Council’s Australian guidelines to reduce health risks from drinking alcohol in recognition that risk, although difficult to predict, exists with a range of doses and FASD is preventable.3,7
Although data from a large national survey indicate that only 20% of Aboriginal and Torres Strait Islander women drink alcohol in pregnancy, a greater proportion of Aboriginal and Torres Strait Islander women than non-Indigenous Australian women have been reported to drink alcohol at high-risk levels.5 The prevalence of alcohol use in pregnancy varies across communities.13 Due to the persistent disadvantage experienced by Aboriginal and Torres Strait Islander people in Australia, the risks for poor social outcomes for Aboriginal and Torres Strait Islander versus non-Indigenous children is higher and increased support should be provided to prevent prenatal alcohol exposure.32 The Marulu Strategy (meaning ‘precious, worth nurturing’) was a community-led response to address the high prevalence of alcohol use and FASD.10 The strategy, which has successfully supported a reduction in alcohol consumption in pregnancy, has a broad range of approaches, including raising community awareness and education programs, health promotion, training and resources for health and education professionals, research and family and parenting support.10–13
Screening for alcohol use prior to conception and in pregnancy, offering accurate information about the harms of alcohol use in pregnancy and providing appropriate intervention or referral to a specialist alcohol treatment service are important strategies to prevent FASD.15 Screening for alcohol use during pregnancy can be embedded into midwifery services in local communities in addition to GP-offered services. It is critical to recognise that alcohol use in pregnancy can contribute to significant lifelong disability and efforts at prevention are crucial. Although most Australian women (63.6%) are aware of the existence of Australian alcohol guidelines for pregnancy, almost 22% could not identify the recommendation that no alcohol use during pregnancy is best.59 The Australian guide to the diagnosis of FASD states there is no known safe threshold for alcohol consumption during pregnancy.3 Increasing awareness of the harm of alcohol in pregnancy and of FASD within communities is a critical role for primary healthcare. It is important for primary care providers to assess maternal alcohol intake and to quantify this using tools such as AUDIT-C.3
Diagnosis and early intervention are critical to understanding the affected individual’s impairment and their distinct needs, and a diagnosis provides an explanation of the cause of their problems, diminishing blame and stigma.62,63 Understanding FASD as a disability can facilitate acceptance of impairments by individuals and their carers and motivate responsibility for ongoing support in families and service providers.,64,65 GPs can play a key role in developmental tracking and early identification of behavioural and developmental concerns that families raise, and recognise and offer support to families in the struggles they are experiencing. If a child is suspected of having FASD, GPs can provide support by making referrals to relevant services, including developmental paediatricians and/or diagnostic services, provide referrals to early intervention services and provide information on the NDIS. Further, GPs can undertake training on FASD including online training (see Useful resources).
Making a diagnosis of FASD
Diagnostic terminology for FASD has evolved over time, with categories including fetal alcohol syndrome, partial fetal alcohol syndrome and neurodevelopmental disorder-alcohol exposed being used previously.55 In 2016, the Australian Government endorsed the Australian guide to the diagnosis of FASD3 (see Useful resources).
The diagnostic terminology has been simplified to include two diagnostic categories, namely FASD with or without three sentinel facial features (short palpebral fissures, smooth philtrum, thin upper lip). Severe impairment (scoring two or more standard deviations below the mean or less than the third percentile on standardised assessments) in at least three neurodevelopmental domains (see Table 1) is necessary for a diagnosis. Generally, confirmed prenatal alcohol exposure is required to make a diagnosis. However, when all three sentinel facial features are present, along with severe neurodevelopmental impairment, a diagnosis may be made without confirmation of prenatal alcohol exposure (Table 1). Importantly, an affected individual may not have sentinel facial features but may still experience severe functional limitations and meet the criteria for FASD.
Making a diagnosis of FASD requires a multidisciplinary approach and specialist assessment.3,66 As yet, there is no specific biomarker for prenatal alcohol exposure, and history and examination are of importance to ascertain exposure risk to the child or adult, and to consider or exclude alternative exposures or comorbid diagnoses.67–69 Neurocognitive profiles in FASD often overlap with ADHD, autism spectrum disorder, speech and language disorders, mental health disorders, conduct disorder, behavioural problems and oppositional defiant disorder.70–72 FASD is often diagnosed in the context of other risk factors, and differentiating the relative impact of these is complex and difficult. Some diagnoses, such as ADHD, intellectual disability, conduct disorder or autism spectrum disorder, may occur with, or be due to, prenatal alcohol exposure.47,70,72 Early life trauma or neglect, and some genetic abnormalities, are associated with behavioural and cognitive impairments, and acquired brain injury from trauma, infection or metabolic conditions may present a similar neurodevelopmental profile to that seen in FASD.67–69 Clinically, a diagnosis of FASD provides critical information about the neurocognitive profile of the individual, and it has been reported that executive functioning is commonly impaired (79.4%), sleep disturbance is a significant problem (61%) and ADHD a common comorbid condition (41.7%).24 Conditions such as sleep disturbance and ADHD can be treated but, if FASD is not recognised, support and treatment may not be effective.
Groups at high risk of missed FASD diagnosis include children in foster or adoptive care73 and youth who have come into contact with the law.8,44,48 These children and young people are more likely to experience high levels of adverse childhood experiences (ACEs) and other life stressors, such as involvement in the child protection and justice systems, increased exposure to alcohol and substance use in the home, exposure to family abuse and violence, risk of child maltreatment and neglect, homelessness and disengagement from school.48 Increased ACEs and the associated trauma are contributing factors to high-risk health behaviours and co-morbidities, including substance use and suicide risk..48,74 From a clinical perspective, it is crucial to be aware of the impact of ACEs on vulnerable youth and to recognise the contribution of ACEs to comorbidities and potentially negative outcomes for children and youth with FASD who have trauma histories.48
In Australia, the child protection and justice systems are key sources of referral for FASD screening and diagnosis.24,48 Due to the significant language impairments experienced by those with FASD, assessment prior to sentencing is important so that language limitations can be accommodated in court processes.75 The first Australian study to estimate the prevalence of FASD among youth in detention occurred at Banksia Hill in WA from 2015 to 2016.9 Of the 99 youth in that study in custody, 36% were diagnosed with FASD. Most study participants were Aboriginal (74%), and their lives were entrenched in the youth criminal justice system.9 It was noted that 28% of participants had experienced high-level prenatal alcohol exposure., Of those diagnosed with FASD (36%) over half had severe impairment in at least three neurodevelopmental domains including significant problems in academic performance (86% of young people diagnosed with FASD), attention (72%), executive functioning (78%), language (69%), memory impairment (56%), motor skills (50%) and cognition (36%).9 This research has been critical in drawing attention to the experiences of youth (aged 10–18 years) involved in the justice system and highlights the critical need for the development of a screening tool for use with young people entering detention.9,76
A consistent model of care for FASD does not currently exist in Australia. There is limited access to specialist FASD diagnostic clinics, but critical literature suggests local community-based behavioural and developmental assessment services could, with appropriate supports and training, be embedded in primary health.17,74 Doctors are often not trained in making a FASD diagnosis, and there may be concerns among clinicians that a label of FASD will stigmatise the mother and affected individual.74,75 Clinicians may also believe there is little that can be done to alleviate the effects of FASD. For these reasons, there may be a reluctance to ask about prenatal alcohol exposure.76
Special consideration is needed for adolescents and adults living with FASD. FASD often goes underdetected and under-recognised in adults, and it is possible that those who have previously received a diagnosis such as ADHD or intellectual disability may actually have FASD. If an adult is suspected of having a disability that has gone unrecognised, and FASD is considered to be a potential causal factor, taking a thorough family social history, including questions about the use of alcohol by parents, may provide insights into the nature of the problem. Adults with FASD often have experienced trouble with the law and incarceration, have social problems in relationships and have financial and housing insecurity. The information gathered in a social history can indicate whether a clinician should consider whether prenatal alcohol exposure is a factor in the current presentation of the individual. In the adult population, there may be less opportunity for diagnosis due to a number of factors, including limited health professionals diagnosing in adulthood, changes in physical characteristics that occur with age and difficulties obtaining information about the pregnancy.3,13,78,81
Given the complexity and variability in presentation of FASD, the diagnostic process requires a multidisciplinary team, ideally including a paediatrician, neuropsychologist, occupational therapist, speech and language pathologist and social worker.3,66,82 This is not always feasible due to a lack of services, especially in regional and remote areas of Australia.18 Therefore, a more streamlined approach to diagnosis, for example by a paediatrician and neuropsychologist, may be adopted. The diagnostic team can also vary depending on age and setting.3,18 In younger children (aged <5 years), a diagnosis may be made by a paediatrician conducting developmental testing. In later childhood, adolescence and adulthood, a medical practitioner, neuropsychologist and speech and language pathologist may constitute an appropriate diagnostic team.18,82,83 Because diagnosis in adulthood is not readily available in Australia, a paediatrician with specialist expertise in FASD may support the diagnostic team. When mental health disorders are suspected, confirmation of these diagnoses by consultation with a psychiatrist may be required.
In Aboriginal and Torres Strait Islander communities where English is not a first language, assessments need to be minimally biased by language (eg using non-verbal cognitive assessments and working with interpreters and cultural consultants). The use of tools without cultural biases are also important in assessment.3,18 The assessment process includes comprehensive history taking to consider or exclude other exposures (prenatal or postnatal), and consideration of and investigation for other risk factors (eg trauma, illness, structural central nervous system abnormality, genetic or metabolic conditions, anaemia, thyroid deficiency).3,83 In remote or regional settings, GPs may liaise with paediatricians via telehealth to seek advice on screening, diagnosis and management.18
Multiple services with expertise in FASD diagnosis and training now operate within Australian to increase access to specialist diagnostic services.81 GPs can refer to a paediatrician and multidisciplinary team for formal assessment of neurodevelopment or FASD. NOFASD and the FASD Hub Australia both maintain up-to-date directories of FASD-informed specialists and diagnostic clinics and can be contacted for referral options through their websites. Since March 2023, Services Australia made new MBS items available for children with complex neurodevelopmental disabilities and included FASD as an eligible disability specific to patients under the age of 25 years. (See Useful resources for Medicare Benefit Schedule billing information for complex neurodevelopmental disorder and eligible disability.)
Neurodevelopmental profiles of individuals with FASD may change over time or become more pronounced at key transition points during development (eg when entering school or the workforce), and reassessment by relevant services over the life course is often required. Early intervention aims to improve neurodevelopment and functional outcomes and reduce social and mental health problems later in life.20,25,45 A coordinated approach to assessment and diagnosis will facilitate the selection of appropriate interventions. A process of referral, assessment, intervention, review and reassessment with ongoing case coordination is recommended.45 Models of care for FASD screening, referral and diagnosis have been developed in some regions, but assessment, diagnosis and support services remain sparse.,18,20,25,85 In terms of outreach for families and the community, NOFASD provides a confidential helpline that is available seven days a week. In 2017, the Australian Government committed funding to increase FASD diagnostic capacity nationally, and a consultation process was initiated to develop the Australian FASD Action Plan 2018–2028.