Fetal Alcohol Spectrum Disorder (FASD)

1. Clinical Overview

Summary

Fetal Alcohol Spectrum Disorder (FASD) is an umbrella term encompassing the range of physical, neurodevelopmental, and behavioural abnormalities resulting from prenatal alcohol exposure. [1,2] The most severe phenotype, Fetal Alcohol Syndrome (FAS), is characterised by the classic triad of facial dysmorphism (smooth philtrum, thin upper lip, short palpebral fissures), growth restriction, and central nervous system dysfunction. [3]

FASD represents the leading preventable cause of intellectual disability in the developed world. [4] There is no known safe level of alcohol consumption during pregnancy — the safest approach is complete abstinence. [5] The spectrum encompasses full FAS, partial FAS, alcohol-related neurodevelopmental disorder (ARND), and alcohol-related birth defects (ARBD). [3]

Management is supportive and multidisciplinary, focusing on early diagnosis, educational intervention, treatment of comorbidities, and prevention of secondary disabilities (mental health problems, school failure, substance misuse, legal issues). [6] Early intervention and protective factors (stable home, appropriate education, timely diagnosis) significantly improve long-term outcomes. [7]

Key Facts

• Cause: Prenatal alcohol exposure — no safe level established [5]
• Leading Preventable ID: Most common preventable cause of intellectual disability [4]
• Prevalence: Estimated 1-5% of general population; FAS ~1-2 per 1000 live births [8]
• Facial Triad (FAS): Smooth philtrum + Thin upper lip + Short palpebral fissures [3]
• Spectrum Conditions: FAS → Partial FAS → ARND → ARBD [3]
• Brain Effects: Microcephaly, corpus callosum agenesis, cerebellar hypoplasia [9]
• Neurobehavioural: ADHD, executive dysfunction, learning difficulties, memory problems [10]
• Secondary Disabilities: Preventable with early diagnosis and support [7]
• Management: No cure; early intervention is key [6]
• Prevention: Abstinence from alcohol in pregnancy [5]

Clinical Pearls

"Three Sentinel Facial Features": Smooth philtrum (Likert 4-5), Thin vermillion border (Likert 4-5), Short palpebral fissures (less than 10th centile). These are pathognomonic for FAS when all three present together. [3]

"No Safe Level": There is no known safe amount, timing, or pattern of alcohol consumption during pregnancy. The only safe approach is total abstinence. [5]

"The Hidden Disability": Many individuals with FASD do not have the classic facial features but still experience significant neurodevelopmental and behavioural problems (ARND phenotype). These are the majority of affected individuals. [1,11]

"Secondary Disabilities are Preventable": Without early diagnosis and intervention, up to 90% develop secondary disabilities (mental health, unemployment, substance abuse, legal issues). Early support reduces this dramatically. [7]

"Timing-Specific Effects": First trimester exposure → facial features and major organ defects. Second/third trimester → brain development and growth restriction. All trimesters carry risk. [12]

"Think FASD in Unexplained Developmental Delay": Consider FASD in the differential for any child with developmental delay, behavioural problems, or learning difficulties — especially if maternal alcohol history is uncertain or unknown. [2]

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2. Epidemiology

Global Prevalence

Geographical Variation

Global estimates suggest highest prevalence in:

• South Africa: Particularly Western Cape region (63-74 per 1000 in some communities) [8]
• Eastern Europe: High rates in former Soviet republics [8]
• Indigenous populations: Canada, USA, Australia — higher risk due to social determinants [8]

Risk Factors for Prenatal Alcohol Exposure

Sex Differences

• Male:Female ratio: Approximately 1:1 for diagnosis [1]
• Presentation differences: Males may have more externalizing behaviours (ADHD, aggression); females more internalizing (anxiety, depression) [10]

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3. Aetiology and Pathophysiology

Mechanism of Alcohol Teratogenicity

Exam Detail: Cellular and Molecular Mechanisms:

1. Direct Toxic Effects: [17,18]

   • Alcohol crosses placenta freely (lipophilic, small molecule)
   • Fetus has limited alcohol dehydrogenase (ADH) activity → prolonged exposure
   • Acetaldehyde (toxic metabolite) accumulates
   • Direct toxicity to developing neurons and glia

2. Oxidative Stress: [17]

   • Reactive oxygen species (ROS) generation
   • Lipid peroxidation of cell membranes
   • Mitochondrial dysfunction
   • DNA damage

3. Apoptosis and Cell Death: [18]

   • Alcohol triggers widespread neuronal apoptosis during synaptogenesis (third trimester equivalent)
   • Particularly affects cerebellum, hippocampus, cortex
   • Critical period: days of peak neurogenesis

4. Impaired Neuronal Migration: [9]

   • Disruption of radial glial scaffolding
   • Defective cortical layering
   • Abnormal corpus callosum development

5. Growth Factor Disruption: [17,18]

   • Inhibition of insulin-like growth factor (IGF)
   • Disruption of retinoic acid signaling
   • Interference with Sonic Hedgehog (Shh) pathway → facial malformations

6. Epigenetic Changes: [16]

   • DNA methylation alterations
   • Histone modifications
   • Long-term gene expression changes

7. Vascular Effects: [12]

   • Placental vasoconstriction → reduced nutrient delivery
   • Impaired angiogenesis in developing brain

Timing-Specific Effects

Key Concept: No trimester is safe. However, first trimester exposure is classically associated with facial features; second/third trimester with brain dysfunction and growth. [12]

Brain Structural Abnormalities

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4. Clinical Presentation

FASD Spectrum — Diagnostic Categories

Exam Detail: The FASD umbrella encompasses several diagnostic entities: [3]

Note: The Canadian Guidelines use slightly different terminology (FASD with sentinel facial features vs FASD without sentinel facial features). [2]

Diagnostic Criteria for Fetal Alcohol Syndrome (FAS)

All four criteria must be met: [3]

1. Facial Dysmorphology (All Three Required)

Clinical Pearl: Lip-Philtrum Guide: A validated 5-point Likert scale photographic tool used to assess philtrum smoothness and upper lip thinness. Ranks 4-5 indicate abnormality. Essential for standardized diagnosis. [3]

2. Growth Restriction

• Prenatal or postnatal height or weight ≤10th centile (or documented growth restriction)
• Head circumference (microcephaly) often present but not required for growth criterion

3. Central Nervous System Dysfunction

Structural: [9]

• Microcephaly (OFC ≤10th centile)
• Structural brain abnormalities on MRI (corpus callosum agenesis, cerebellar hypoplasia)
• Clinically significant neurological signs (seizures not due to other cause)

Functional (see Neurodevelopmental section below):

• Cognitive deficits (IQ less than 70 or significant delay)
• Executive function deficits
• Learning difficulties
• Behavioural regulation problems

4. Confirmed or Unknown Prenatal Alcohol Exposure

• For full FAS with all facial features: Exposure confirmation not required (phenotype pathognomonic)
• For partial FAS or ARND: Confirmed maternal alcohol exposure required

Neurodevelopmental and Behavioural Phenotype

FASD affects multiple neurobehavioural domains: [10]

Other Physical Features (Variable)

Facial (may be subtle or absent in ARND):

• Epicanthal folds
• Low nasal bridge
• Short nose
• Flat midface (hypoplastic maxilla)
• Micrognathia
• Abnormal ears (railroad track ears, posterior rotation)

Cardiac (25% with FAS): [1]

• Ventricular septal defect (VSD)
• Atrial septal defect (ASD)
• Tetralogy of Fallot

Skeletal:

• Radioulnar synostosis
• Clinodactyly
• Camptodactyly
• Hypoplastic nails

Renal:

• Horseshoe kidney
• Renal agenesis/hypoplasia
• Hydronephrosis

Ophthalmological:

• Strabismus
• Refractive errors
• Optic nerve hypoplasia

Auditory:

• Conductive hearing loss (recurrent otitis media)
• Sensorineural hearing loss

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5. Clinical Examination

Systematic Approach

Growth Parameters

• Height: Plot on centile chart
• Weight: Plot on centile chart
• Head circumference (OFC): Microcephaly (≤10th centile) common [3]
• Growth restriction: Prenatal or postnatal ≤10th centile

Facial Examination (Structured Assessment)

Clinical Pearl: Examine the child in good lighting, ideally with parent consent for photography for documentation. Use standardized tools.

1. Palpebral fissure length (PFL):

   • Measure from inner to outer canthus (mm)
   • Compare to age/ethnicity-adjusted centile charts
   • ≤10th centile = short palpebral fissures [3]

2. Philtrum:

   • Assess smoothness using Lip-Philtrum Guide (5-point Likert scale)
   • Rank 4 or 5 = smooth philtrum (abnormal) [3]

3. Upper lip:

   • Assess thinness of vermillion border using Lip-Philtrum Guide
   • Rank 4 or 5 = thin vermillion border (abnormal) [3]

4. Other facial features (supportive but not diagnostic):

   • Epicanthal folds
   • Low nasal bridge
   • Flat midface
   • Micrognathia

Cardiovascular Examination

• Auscultate for murmurs (VSD, ASD common)

Neurodevelopmental Assessment

• Developmental screening: Ages and Stages Questionnaire (ASQ), Denver II
• Cognitive testing: WISC, WPPSI (formal neuropsychology)
• Executive function: BRIEF (Behaviour Rating Inventory of Executive Function)
• Adaptive function: Vineland Adaptive Behaviour Scales
• ADHD screening: Conners, SNAP-IV

Systems Examination

• Skeletal: Examine hands for clinodactyly, radioulnar synostosis
• Vision: Ophthalmology referral (strabismus, refractive errors)
• Hearing: Audiology referral (conductive/sensorineural loss)

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6. Differential Diagnosis

Other Causes of Developmental Delay with Facial Features

Clinical Pearl: Key Discriminator: A detailed maternal history of alcohol consumption in pregnancy is critical. Confirmed prenatal alcohol exposure in the presence of facial features and neurodevelopmental impairment makes FASD diagnosis likely. Genetic testing can exclude syndromic causes if diagnostic uncertainty.

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7. Investigations

FASD is a Clinical Diagnosis

No blood test or genetic test diagnoses FASD. [2] Diagnosis requires:

1. Multidisciplinary clinical assessment
2. Facial dysmorphology evaluation
3. Growth measurement
4. Neurodevelopmental testing
5. Maternal alcohol exposure history

Recommended Investigations

Maternal Alcohol Exposure Confirmation

• Self-report: Maternal interview (often unreliable due to stigma, recall bias)
• Collateral history: Partner, social services, antenatal records
• Biomarkers (research only, not clinically validated):
  • Phosphatidylethanol (PEth) in maternal blood
  • Fatty acid ethyl esters (FAEE) in meconium/hair
  • Ethyl glucuronide (EtG) in maternal urine/hair

Clinical Pearl: Absence of confirmed maternal alcohol history does not exclude FASD. If the child has the full facial phenotype and CNS dysfunction, FAS can be diagnosed without confirmed exposure. For partial FAS/ARND, confirmed exposure is required. [3]

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8. Management

Overarching Principles

1. No cure exists — FASD is a permanent neurodevelopmental disorder [6]
2. Early diagnosis and intervention improve outcomes [7]
3. Multidisciplinary approach essential [6]
4. Address primary (CNS dysfunction) and prevent secondary disabilities [7]
5. Family support and education critical [6]

Management Algorithm

┌────────────────────────────────────────────────────────────────────┐
│                    FASD DIAGNOSIS CONFIRMED                        │
└────────────────────────────────────────────────────────────────────┘
                              │
                              ▼
┌────────────────────────────────────────────────────────────────────┐
│  MULTIDISCIPLINARY ASSESSMENT                                      │
│  • Developmental Paediatrician (lead)                              │
│  • Clinical Psychologist / Neuropsychologist                       │
│  • Speech and Language Therapist (SaLT)                            │
│  • Occupational Therapist (OT)                                     │
│  • Educational Psychologist                                        │
│  • Social Worker (if safeguarding concerns)                        │
│  • CAMHS (if mental health comorbidities)                          │
└────────────────────────────────────────────────────────────────────┘
                              │
                              ▼
┌────────────────────────────────────────────────────────────────────┐
│  INDIVIDUALIZED INTERVENTION PLAN                                  │
├────────────────────────────────────────────────────────────────────┤
│                                                                    │
│  1. EDUCATIONAL SUPPORT                                            │
│     • Education, Health and Care Plan (EHCP) [UK]                  │
│     • Specialist educational provision (SEN school/unit)           │
│     • Teaching strategies:                                         │
│       - Concrete, visual learning (not abstract)                   │
│       - Repetition and overlearning                                │
│       - Structured, predictable routine                            │
│       - 1:1 support in classroom                                   │
│       - Modified curriculum / reduced workload                     │
│                                                                    │
│  2. THERAPEUTIC INTERVENTIONS                                      │
│     • Speech and Language Therapy (communication skills)           │
│     • Occupational Therapy (sensory processing, motor skills)      │
│     • Applied Behaviour Analysis (ABA) for behaviour               │
│     • Social skills training groups                                │
│     • Cognitive Behavioural Therapy (if age-appropriate)           │
│                                                                    │
│  3. MEDICAL MANAGEMENT                                             │
│     • Treat ADHD:                                                  │
│       - Methylphenidate (first-line) [10]                          │
│       - Lisdexamfetamine, atomoxetine (second-line)                │
│       - **CAUTION**: Response may differ from typical ADHD         │
│     • Treat comorbid mental health:                                │
│       - Anxiety: SSRIs if severe                                   │
│       - Depression: Psychotherapy + SSRIs if indicated             │
│       - Sleep problems: Sleep hygiene + melatonin                  │
│     • Manage physical comorbidities:                               │
│       - Cardiac: Cardiology follow-up for defects                  │
│       - Hearing/Vision: Aids, glasses as needed                    │
│       - Seizures: Antiepileptic drugs if indicated                 │
│                                                                    │
│  4. FAMILY AND CAREGIVER SUPPORT                                   │
│     • Parent education about FASD                                  │
│     • Parent training programmes (e.g., Triple P, Incredible Years)│
│     • Respite care provision                                       │
│     • Financial support (Disability Living Allowance [UK])         │
│     • Support groups (NOFAS-UK, FASD Network UK)                   │
│                                                                    │
│  5. SAFEGUARDING AND SOCIAL SUPPORT                                │
│     • Child protection if ongoing substance misuse at home         │
│     • Kinship care / foster care / adoption support               │
│     • Youth offending team liaison if legal issues                 │
│     • Substance misuse services liaison for adolescents            │
│                                                                    │
│  6. TRANSITION PLANNING (Age 14+)                                  │
│     • Transition to adult services (ID, mental health, GP)         │
│     • Supported living arrangements                                │
│     • Employment support / vocational training                     │
│     • Continuing education (college with support)                  │
│     • Independent living skills training                           │
│                                                                    │
└────────────────────────────────────────────────────────────────────┘
                              │
                              ▼
┌────────────────────────────────────────────────────────────────────┐
│  ONGOING MONITORING                                                │
│  • 6-12 monthly developmental paediatrics review                   │
│  • Annual EHCP reviews (UK)                                        │
│  • Monitor for secondary disabilities (mental health, substance use)│
└────────────────────────────────────────────────────────────────────┘

Protective Factors (Reduce Secondary Disabilities) [7]

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9. Complications and Secondary Disabilities

Primary Disabilities (Direct CNS Damage)

• Intellectual disability (variable severity)
• Learning difficulties
• ADHD and executive dysfunction
• Speech and language delay
• Motor coordination problems
• Memory deficits

Secondary Disabilities (Preventable with Early Support) [7]

Clinical Pearl: The "90% Rule": Without early diagnosis and appropriate support, 90% of individuals with FASD will develop at least one secondary disability by adulthood. Early intervention can reduce this dramatically. [7]

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10. Prognosis & Outcomes

With Early Diagnosis and Support [6,7]

• Improved academic achievement (though still below peers)
• Reduced behavioural problems
• Lower rates of secondary disabilities (mental health, substance use, legal issues)
• Better adaptive functioning
• Many adults live independently with support

Without Support

• High rates of secondary disabilities (90%)
• School failure and dropout
• Unemployment and homelessness
• Mental health problems (depression, anxiety, suicidal ideation)
• Substance misuse
• Incarceration (overrepresented in justice system)

Long-Term Considerations

• FASD is lifelong — neurodevelopmental deficits persist into adulthood [10]
• Adult outcomes variable: Range from independent living with minimal support to requiring lifelong residential care
• IQ does not predict outcome: Adaptive function and executive function are better predictors [10]
• Transition to adulthood is high-risk: Loss of school structure, onset of substance use, legal issues common [14]

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11. Prevention

Primary Prevention (No Exposure)

Public Health Messaging: [5]

• No amount of alcohol is safe during pregnancy
• No trimester is safe
• No type of alcohol is safe (wine, beer, spirits — all harmful)
• Abstinence from alcohol when planning pregnancy and throughout pregnancy

Antenatal Screening: [5]

• Universal screening for alcohol use in early pregnancy
• Validated tools: AUDIT-C, T-ACE, TWEAK
• Brief intervention for women reporting alcohol use
• Referral to addiction services if alcohol dependence

Policy Interventions:

• Mandatory alcohol labelling (pregnancy warnings)
• Pricing policies (minimum unit pricing)
• Restriction of marketing/advertising

Secondary Prevention (Reduce Harm if Exposed)

Interventions for Pregnant Women:

• Brief interventions in antenatal care [5]
• Motivational interviewing
• Addiction services referral
• Multivitamin supplementation (folic acid, choline — may have neuroprotective effect) [15]

High-Risk Populations:

• Women with alcohol use disorder
• Women with previous FASD-affected child
• Young mothers, socially disadvantaged

Tertiary Prevention (Prevent Secondary Disabilities)

• Early identification of affected children [7]
• Early intervention services
• Family support and education
• Long-term monitoring and support

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12. Evidence & Guidelines

Key Guidelines

1. Hoyme HE et al. (2016) — Updated Clinical Guidelines for Diagnosing FASD. Pediatrics. [3]

   • Updated University of Washington/CDC diagnostic criteria
   • Standardized Lip-Philtrum Guide
   • Consensus diagnostic algorithm

2. Cook JL et al. (2016) — Canadian FASD Diagnostic Guidelines. CMAJ. [2]

   • Multidisciplinary assessment framework
   • Neurodevelopmental domains assessment
   • "FASD with/without sentinel facial features" terminology

3. SIGN (2019) — Children and Young People Exposed Prenatally to Alcohol: A National Clinical Guideline. [6]

   • UK-specific guidance
   • Assessment and intervention recommendations
   • Educational support strategies

4. British Medical Association (2020) — FASD: A Guide for Healthcare Professionals. [1]

   • Clinical overview for UK practitioners
   • Prevention strategies

Key Evidence

Epidemiology:

• Lange S et al. (2017): Global prevalence of FASD estimated at 7.7 per 1000 population. [8]

No Safe Level:

• May PA et al. (2014): Dose-response relationship; no threshold identified for safe consumption. [12]

Neurodevelopmental Outcomes:

• Mattson SN et al. (2019): Comprehensive review of neuropsychological deficits in FASD. [10]

Brain Imaging:

• Wozniak JR et al. (2009): MRI findings — corpus callosum abnormalities in 85% of FAS. [9]

Protective Factors:

• Streissguth AP et al. (2004): Landmark study identifying protective factors reducing secondary disabilities. [7]

Interventions:

• Peadon E et al. (2009): Systematic review of interventions — early educational support most effective. [6]

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13. Examination Focus

Viva Scenarios

Scenario 1: Diagnosis

Examiner: "A 5-year-old boy is referred to your clinic with developmental delay and behavioural problems. On examination, you note short palpebral fissures, a smooth philtrum, and a thin upper lip. How would you approach this case?"

Model Answer: "This presentation raises strong suspicion for Fetal Alcohol Spectrum Disorder, given the classic triad of facial features. My approach would be:

1. History: I would take a detailed maternal alcohol history during pregnancy — amount, timing, pattern. I'd explore other risk factors (smoking, nutrition). I'd assess the child's neurodevelopmental trajectory — when concerns first noted, school performance, behaviour, social skills.

2. Examination: I would formally measure palpebral fissure length and compare to age-adjusted centiles. I'd use the Lip-Philtrum Guide to objectively score philtrum smoothness and upper lip thinness. I'd measure growth parameters (height, weight, OFC) — looking for growth restriction or microcephaly. I'd perform a full systems examination looking for cardiac murmurs (VSD, ASD), skeletal anomalies, and developmental assessment.

3. Investigations: I'd arrange multidisciplinary neurodevelopmental assessment including neuropsychology (IQ, executive function, memory), speech and language evaluation, and occupational therapy assessment. Supportive tests would include echocardiogram, renal ultrasound, audiology, and ophthalmology. If diagnostic uncertainty, I might consider brain MRI (corpus callosum abnormalities) and genetic testing (microarray) to exclude other causes like 22q11.2 deletion.

4. Diagnosis: If all three facial features are present with confirmed CNS dysfunction (microcephaly or neurodevelopmental impairment) and growth restriction, this meets criteria for Fetal Alcohol Syndrome (FAS). If facial features are incomplete but exposure confirmed, this may be partial FAS or ARND.

5. Management: I'd set up a multidisciplinary team including developmental paediatrics, psychology, SaLT, OT, and educational psychologist. I'd initiate an EHCP for educational support. I'd screen for ADHD (very common comorbidity) and consider treatment with methylphenidate if present. I'd provide family education and link to support groups (NOFAS-UK, FASD Network UK).

6. Follow-up: Regular monitoring for secondary disabilities (mental health, school failure, substance misuse) with transition planning in adolescence."

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Scenario 2: Prevention

Examiner: "A pregnant woman at 8 weeks' gestation discloses she has been drinking 10 units of alcohol per week. How would you counsel her?"

Model Answer: "This is a critical opportunity for intervention to reduce harm to the developing fetus.

1. Non-judgmental approach: I would create a safe, supportive environment and thank her for disclosing. I'd explain that many women drink before realizing they're pregnant, and the important thing is to stop now.

2. Evidence-based advice: I would clearly state that there is no known safe level of alcohol during pregnancy. All alcohol crosses the placenta and the fetus cannot metabolize it effectively. The safest approach is complete abstinence from now onward.

3. Explain risks: I'd explain that alcohol is a teratogen that can cause Fetal Alcohol Spectrum Disorder (FASD) — the leading preventable cause of intellectual disability. Effects include facial abnormalities, growth restriction, and neurodevelopmental problems (learning difficulties, ADHD, behavioural issues). All trimesters carry risk — first trimester for facial features and organ defects, second/third for brain development.

4. Address current exposure: I'd explain that stopping now significantly reduces risk. Continued exposure throughout pregnancy increases dose-dependent harm. If she stops today, she gives her baby the best chance.

5. Assess dependence: I'd use a validated screening tool (AUDIT-C, T-ACE) to assess for alcohol use disorder. If present, I'd refer to addiction services and discuss safe withdrawal (should not stop abruptly if dependent — risk of seizures).

6. Support: I'd offer brief intervention (motivational interviewing), signpost to support services (Drinkline, local alcohol services), and arrange close antenatal follow-up.

7. Documentation: I'd clearly document alcohol exposure in notes for postnatal paediatric team awareness (child will need developmental surveillance).

8. Optimise nutrition: I'd prescribe high-dose folic acid (5mg) and ensure she's on pregnancy multivitamins. Some evidence suggests choline supplementation may be neuroprotective, though not standard practice."

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Scenario 3: Secondary Disabilities

Examiner: "Why is early diagnosis of FASD so important?"

Model Answer: "Early diagnosis is critical because it enables prevention of secondary disabilities, which affect up to 90% of individuals with FASD who are diagnosed late or not at all. [7]

Primary disabilities (intellectual disability, learning difficulties, ADHD, memory problems) are permanent — caused by direct brain damage from prenatal alcohol exposure. We cannot reverse these.

However, secondary disabilities — mental health problems, school failure, substance misuse, trouble with the law, unemployment, homelessness — are not inevitable. These arise from the interaction between the child's primary neurodevelopmental deficits and an unsupportive environment that doesn't understand their needs.

Early diagnosis enables:

1. Appropriate educational support: EHCP, modified teaching strategies, specialist provision — prevents school failure and dropout.

2. Family understanding: Parents/carers understand the child has brain-based difficulties, not wilful misbehaviour — reduces conflict, improves parenting strategies.

3. Early intervention: Speech therapy, occupational therapy, behavioural support — improves adaptive skills.

4. Mental health monitoring: Early identification and treatment of anxiety, depression — reduces distress and risk of substance misuse.

5. Structured environment: Predictable routines, clear expectations, supervision — reduces risk of exploitation and legal issues.

6. Access to services: Disability benefits, respite care, social services support — reduces family stress.

Evidence: Streissguth's landmark study [7] identified protective factors (early diagnosis, stable home, no violence, appropriate education) that dramatically reduce secondary disabilities. Diagnosis before age 6 is particularly protective.

Without early diagnosis, affected individuals are often labelled as 'naughty', 'lazy', or 'wilfully disobedient' when they actually have permanent brain-based executive dysfunction. This leads to punitive approaches that fail, escalating behavioural problems, school exclusion, family breakdown, and ultimately the cascade of secondary disabilities.

Early diagnosis saves lives."

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14. Patient/Layperson Explanation

What is Fetal Alcohol Spectrum Disorder (FASD)?

FASD is a group of conditions that happen when a baby is exposed to alcohol during pregnancy. Alcohol can harm the baby's developing brain and body, causing problems that last a lifetime.

The most severe form is called Fetal Alcohol Syndrome (FAS), where children have unusual facial features, are smaller than other children, and have learning and behavioural difficulties.

What Causes It?

Drinking alcohol during pregnancy causes FASD. There is no safe amount — even small amounts can harm the baby. There is no safe time — alcohol can cause problems throughout pregnancy.

When a pregnant woman drinks alcohol, it crosses the placenta directly to the baby. The baby's developing brain is very sensitive to alcohol, which damages brain cells and disrupts normal development.

What Are the Signs?

Physical features (in severe cases):

• Unusual facial appearance (smooth area between nose and lip, thin upper lip, small eyes)
• Smaller height and head size
• Heart, kidney, or bone problems

Learning and behaviour (all cases):

• Learning difficulties
• ADHD (very common)
• Trouble with memory and organization
• Difficulty with social skills
• Impulsive behaviour
• Speech and language delay

Is There a Cure?

No, there is no cure for FASD. The brain changes are permanent. However, early help makes a huge difference.

With the right support, children with FASD can:

• Learn and achieve in school (with extra help)
• Develop skills and independence
• Have friends and relationships
• Avoid problems like mental health issues, substance use, and trouble with the law

Without support, many people with FASD struggle throughout life.

What Help is Available?

For children:

• Special educational support at school
• Speech and language therapy
• Occupational therapy (for coordination and sensory issues)
• Medicine for ADHD if needed
• Social skills groups

For families:

• Parent education about FASD
• Training in behaviour management
• Support groups
• Respite care
• Financial support (disability benefits)

How Can It Be Prevented?

If you're pregnant or planning a pregnancy: Don't drink any alcohol. This is the only way to be certain your baby won't be affected.

If you've already drunk alcohol: Stop now. The sooner you stop, the better for your baby. Talk to your midwife or doctor — they can help you stop safely.

Where Can I Get Support?

• NOFAS-UK (National Organisation on Fetal Alcohol Syndrome, UK): www.nofas-uk.org
• FASD Network UK: Support for families and professionals
• Your GP or paediatrician: Can refer to specialist services
• Drinkline: 0300 123 1110 (for help with stopping alcohol)

Key Messages

• FASD is preventable — by avoiding alcohol in pregnancy
• FASD is permanent — but with help, people can live well
• Early diagnosis and support are crucial — they prevent additional problems
• It's never too late — even adults with FASD benefit from diagnosis and support

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15. References

1. British Medical Association. Fetal Alcohol Spectrum Disorders: A Guide for Healthcare Professionals. BMA Board of Science. 2020.

2. Cook JL, Green CR, Lilley CM, et al. Fetal alcohol spectrum disorder: a guideline for diagnosis across the lifespan. CMAJ. 2016;188(3):191-197. PMID: 26668194 DOI: 10.1503/cmaj.141593

3. Hoyme HE, Kalberg WO, Elliott AJ, et al. Updated clinical guidelines for diagnosing fetal alcohol spectrum disorders. Pediatrics. 2016;138(2):e20154256. PMID: 27464676 DOI: 10.1542/peds.2015-4256

4. Mattson SN, Berne Smith M, Riley EP. Teratogenic effects of alcohol on brain and behavior. Alcohol Res Health. 2001;25(3):185-191. PMID: 11810956

5. Williams JF, Smith VC, Committee on Substance Abuse. Fetal alcohol spectrum disorders. Pediatrics. 2015;136(5):e1395-e1406. PMID: 26482673 DOI: 10.1542/peds.2015-3113

6. Scottish Intercollegiate Guidelines Network (SIGN). Children and Young People Exposed Prenatally to Alcohol: A National Clinical Guideline. SIGN Publication No. 156. Edinburgh: SIGN; 2019.

7. Streissguth AP, Bookstein FL, Barr HM, et al. Risk factors for adverse life outcomes in fetal alcohol syndrome and fetal alcohol effects. J Dev Behav Pediatr. 2004;25(4):228-238. PMID: 15308923 DOI: 10.1097/00004703-200408000-00002

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9. Wozniak JR, Mueller BA, Chang PN, et al. Diffusion tensor imaging in children with fetal alcohol spectrum disorders. Alcohol Clin Exp Res. 2006;30(10):1799-1806. PMID: 17010147 DOI: 10.1111/j.1530-0277.2006.00213.x

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