Fetal alcohol syndrome (FAS) is a disorder that
can occur to the embryo when a pregnant woman ingests alcohol
during pregnancy. An ingestion of alcohol does not always result in
FAS. The current recommendation of both the US Surgeon General and
the UK Department of Health is not to drink alcohol at all during
pregnancy.
Alcohol crosses the
placental barrier and can stunt
fetal growth or
weight, create distinctive facial stigmata,
damage
neurons and
brain structures, and
cause other physical, mental, or behavioral problems.Surveys found
that in the United States, 10–15% of pregnant women admit to having
recently used alcohol, and up to 30% use alcohol at some point
during pregnancy.The main effect of FAS is permanent
central nervous system damage, especially to
the
brain. Developing
brain cells and structures are underdeveloped or
malformed by prenatal alcohol exposure, often creating an array of
primary
cognitive and functional
disabilities (including poor
memory,
attention deficits, impulsive behavior, and poor
cause-effect reasoning) as well as secondary disabilities (for
example,
mental health problems, and
drug
addiction). The risk of brain damage
exists during each
trimester, since the
fetal brain develops throughout the entire pregnancy.
Fetal alcohol exposure is the leading known cause of
mental retardation in the Western world.
In the
United
States
the FAS prevalence rate is estimated to be between
0.2 and 2.0 cases per 1,000 live births, comparable to or higher
than other developmental
disabilities such as Down syndrome
or spina bifida. The lifetime
medical and
social costs of each child
with FAS are estimated to be as high as US$800,000.
Signs and symptoms
Growth deficiency
Growth deficiency is defined as
significantly below average
height,
weight or both due to prenatal alcohol
exposure, and can be assessed at any point in the
lifespan. Growth measurements must be
adjusted for parental height,
gestational age (for a
premature infant), and other
postnatal insults (e.g.,
poor nutrition), although birth height and
weight are the preferred measurements. Deficiencies are documented
when height or weight falls at or below the 10th percentile of
standardized growth charts appropriate to the patient's
population.
The CDC and Canadian guidelines use the 10th percentile as a
cut-off to determine growth deficiency. The "4-Digit Diagnostic
Code" allows for mid-range gradations in growth deficiency (between
the 3rd and 10th percentiles) and severe growth deficiency at or
below the 3rd percentile. Growth deficiency (at severe, moderate,
or mild levels) contributes to diagnoses of FAS and PFAS (Partial
Fetal Alcohol Syndrome), but not ARND (Alcohol-Related
Neurodevelopmental Disorder) or static encephalopathy.
Growth deficiency is ranked as follows by the "4-Digit Diagnostic
Code:"
- Severe — Height and weight at or below the 3rd percentile.
- Moderate — Either height or weight at or below the 3rd
percentile, but not both.
- Mild — Both height and weight between the 3rd and 10th
percentiles.
- None — Height and weight both above the 10th percentile.
Facial features
Several characteristic
craniofacial
abnormalities are often visible in individuals with FAS. The
presence of FAS facial features indicates
brain damage, though brain damage may also
exist in their absence. FAS facial features (and most other
visible, but non-diagnostic, deformities) are believed to be caused
mainly during the 10th and 20th week of gestation.
Refinements in diagnostic criteria since 1975 have yielded three
distinctive and diagnostically significant facial features known to
result from prenatal alcohol exposure and distinguishes FAS from
other disorders with partially overlapping characteristics. The
three FAS facial features are:
- A smooth philtrum — The divot or groove
between the nose and upper lip flattens with increased prenatal
alcohol exposure.
- Thin vermilion — The upper lip thins
with increased prenatal alcohol exposure.
- Small palpebral fissures —
Eye width decreases with increased prenatal
alcohol exposure.
Measurement of FAS facial features uses criteria developed by the
University of Washington. The lip and philtrum are measured by a
trained physician with the Lip-Philtrum Guide, a 5-point Likert
Scale with representative photographs of lip and philtrum
combinations ranging from normal (ranked 1) to severe (ranked 5).
Palpebral fissure length (PFL) is measured in millimeters with
either calipers or a clear ruler and then compared to a PFL growth
chart, also developed by the University of Washington.
Ranking FAS facial features is complicated because the three
separate facial features can be affected independently by prenatal
alcohol. A summary of the criteria follows:
- Severe — All three facial features ranked independently as
severe (lip ranked at 4 or 5, philtrum ranked at 4 or 5, and PFL
two or more standard deviations below average).
- Moderate — Two facial features ranked as severe and one feature
ranked as moderate (lip or philtrum ranked at 3,
or PFL between one and two standard deviations below
average).
- Mild — A mild ranking of FAS facial features covers a broad
range of facial feature combinations:
- Two facial features ranked severe and one ranked within normal
limits,
- One facial feature ranked severe and two ranked moderate,
or
- One facial feature ranked severe, one ranked moderate and one
ranked within normal limits.
- None — All three facial features ranked within normal
limits.
These distinctive facial features in a patient do strongly
correlate to brain damage.
Sterling
Clarren of the University of Washington's Fetal Alcohol and
Drug Unit told a conference in 2002:
I have never seen anybody with this whole face who
doesn't have some brain
damage.
In fact in studies, as the face is more FAS-like, the
brain is more likely to be
abnormal.
The only face that you would want to counsel people or
predict the future about is the full FAS face.
But the risk of brain damage increases as the eyes get
smaller, as the philtrum gets flatter, and
the lip gets thinner.
The risk goes up but not the diagnosis.
At one-month gestation, the
top end of your body is a brain, and at the very front end of that
early brain, there is tissue that has been brain
tissue.
It stops being brain and gets ready to be your face
...
Your eyeball is also brain
tissue.
It's an extension of the second part of the
brain.
It started as brain and "popped out."
So if you are going to look at parts of the brain from
alcohol damage, or any kind of damage during pregnancy, eye
malformations and midline facial malformations are going to be very
actively related to the brain across syndromes ... and they
certainly are with FAS.
Central nervous system damage
Central nervous system (CNS)
damage is the primary feature of any FASD diagnosis. Prenatal
exposure to alcohol — which is classified as a
teratogen — can damage the brain across a
continuum of gross to subtle impairments, depending on the amount,
timing, and frequency of the exposure as well as genetic
predispositions of the fetus and mother. While functional
abnormalities are the behavioral and cognitive expressions of the
FAS disability, CNS damage can be assessed in three areas:
structural, neurological, and functional impairments.
All four diagnostic systems allow for assessment of CNS damage in
these areas, but criteria vary. The IOM system requires structural
or neurological impairment for a diagnosis of FAS. The "4-Digit
Diagnostic Code" and CDC guidelines state that functional anomalies
must measure at two standard deviations or worse in three or more
functional domains for a diagnoses of FAS. The "4-Digit Diagnostic
Code" further elaborates the degree of CNS damage according to four
ranks:
- Definite — Structural impairments or neurological impairments
for FAS or static encephalopathy.
- Probable — Significant dysfunction of two standard deviations
or worse in three or more functional domains.
- Possible — Mild to moderate dysfunction of two standard
deviations or worse in one or two functional domains or by
judgment of the clinical evaluation team that CNS damage cannot be
dismissed.
- Unlikely — No evidence of CNS damage.
Structural
Structural abnormalities of the brain are observable, physical
damage to the brain or brain structures caused by prenatal alcohol
exposure. Structural impairments may include
microcephaly (small head size) of two or more
standard deviations below the average, or other abnormalities in
brain structure (e.g.,
agenesis of the corpus
callosum,
cerebellar
hypoplasia).
Microcephaly is determined by comparing head circumference (often
called
occipitofrontal
circumference, or OFC) to appropriate OFC growth charts. Other
structural impairments must be observed through
medical imaging techniques by a trained
physician. Because imaging procedures are expensive and relatively
inaccessible to most patients, diagnosis of FAS is not frequently
made via structural impairments, except for microcephaly.
Evidence of a CNS structural impairment due to prenatal alcohol
exposure will result in a diagnosis of FAS, and neurological and
functional impairments are highly likely.
During the first trimester of pregnancy, alcohol interferes with
the migration and organization of
brain
cells, which can create structural deformities or deficits
within the brain. During the third trimester, damage can be caused
to the
hippocampus, which plays a role
in memory, learning, emotion, and encoding visual and auditory
information, all of which can create neurological and functional
CNS impairments as well.
As of 2002, there were 25 reports of
autopsies on infants known to have FAS. The first
was in 1973, on an infant who died shortly after birth. The
examination revealed extensive brain damage, including
microcephaly, migration anomalies, callosal
dysgenesis, and a massive
neuroglial,
leptomeningeal heterotopia covering the left
hemisphere.
In 1977, Dr. Clarren described a second infant whose mother was a
binge drinker. The infant died ten days after birth. The autopsy
showed severe
hydrocephalus, abnormal
neuronal migration, and a small
corpus
callosum (which connects the two
brain hemispheres) and
cerebellum. FAS has also been linked to
brainstem and
cerebellar
changes, agenesis of the
corpus
callosum and
anterior
commissure, neuronal migration errors, absent
olfactory bulbs,
meningomyelocele, and
porencephaly.
Neurological
When structural impairments are not observable or do not exist,
neurological impairments are assessed. In the context of FAS,
neurological impairments are caused by
prenatal alcohol exposure which causes general neurological damage
to the
central nervous system
(CNS), the
peripheral nervous
system, or the
autonomic
nervous system. A determination of a neurological problem must
be made by a trained physician, and must not be due to a postnatal
insult, such as a high
fever,
concussion,
traumatic brain injury, etc.
All four diagnostic systems show virtual agreement on their
criteria for CNS damage at the neurological level, and evidence of
a CNS neurological impairment due to prenatal alcohol exposure will
result in a diagnosis of FAS, and functional impairments are highly
likely.
Neurological problems are expressed as either hard signs, or
diagnosable disorders, such as
epilepsy or
other
seizure disorders, or soft
signs. Soft signs are broader, nonspecific neurological
impairments, or symptoms, such as impaired fine
motor skills, neurosensory
hearing loss, poor
gait,
clumsiness, poor
eye-hand coordination. Many soft signs have
norm-referenced criteria, while others
are determined through clinical judgment. "Clinical judgment" is
only as good as the clinician, and soft signs should be assessed by
either a pediatric neurologist, a pediatric neuropsychologist, or
both.Those affected have mild retardation.
Functional
When structural or neurological impairments are not observed, all
four diagnostic systems allow CNS damage due to prenatal alcohol
exposure to be assessed in terms of functional impairments.
Functional impairments are deficits, problems, delays, or
abnormalities due to prenatal alcohol exposure (rather than
hereditary causes or postnatal insults) in observable and
measurable domains related to daily functioning, often referred to
as
developmental
disabilities. There is no consensus on a specific pattern of
functional impairments due to prenatal alcohol exposure and only
CDC guidelines label developmental delays as such, so criteria vary
somewhat across diagnostic systems.
The four diagnostic systems list various CNS domains that can
qualify for functional impairment that can determine an FAS
diagnosis:
- Evidence of a complex pattern of behavior or cognitive
abnormalities inconsistent with developmental level in the
following CNS domains — sufficient for a PFAS or ARND diagnosis
using IOM guidelines
- Performance at two or more standard deviations on standardized testing in three or more
of the following CNS domains — sufficient for an FAS, PFAS or
static encephalopathy diagnosis using 4-Digit Diagnostic Code
- General cognitive deficits (e.g.,
IQ) at or below the 3rd percentile on standardized testing — sufficient for
an FAS diagnosis using CDC guidelines
- Performance at or below the 16th percentile on standardized testing in three or more
of the following CNS domains — sufficient for an FAS diagnosis
using CDC guidelines
- Performance at two or more standard deviations on standardized testing in three or more
of the following CNS domains — sufficient for an FAS diagnosis
using Canadian guidelines
Prenatal alcohol exposure
Prenatal alcohol exposure is determined by interview of the
biological mother or other family members knowledgeable of the
mother's alcohol use during the pregnancy (if available), prenatal
health records (if available), and review of available birth
records, court records (if applicable),
chemical dependency treatment records
(if applicable), or other reliable sources.
Exposure level is assessed as Confirmed Exposure, Unknown Exposure,
and Confirmed Absence of Exposure by the IOM, CDC and Canadian
diagnostic systems. The "4-Digit Diagnostic Code" further
distinguishes confirmed exposure as High Risk and Some Risk:
- High Risk — Confirmed use of alcohol during pregnancy known to
be at high blood alcohol
levels (100 mg/dL or greater) delivered at least weekly in
early pregnancy.
- Some Risk — Confirmed use of alcohol during pregnancy with use
less than High Risk or unknown usage patterns.
- Unknown Risk — Unknown use of alcohol during pregnancy.
- No Risk — Confirmed absence of prenatal alcohol exposure, which
rules out an FAS diagnosis.
Confirmed exposure
Amount, frequency, and timing of prenatal alcohol use can
dramatically impact the other three key features of FAS. While
consensus exists that alcohol is a teratogen, there is no clear
consensus as to what level of exposure is toxic. The CDC guidelines
are silent on these elements diagnostically. The IOM and Canadian
guidelines explore this further, acknowledging the importance of
significant alcohol exposure from regular or heavy episodic alcohol
consumption in determining, but offer no standard for diagnosis.
Canadian guidelines discuss this lack of clarity and
parenthetically point out that "heavy alcohol use" is defined by
the
National
Institute on Alcohol Abuse and Alcoholism as five or more
drinks per episode on five or more days during a 30 day
period.
"The 4-Digit Diagnostic Code" ranking system distinguishes between
levels of prenatal alcohol exposure as
High Risk and
Some Risk. It operationalizes high risk exposure as a
blood alcohol concentration
(BAC) greater than 100 mg/dL delivered at least weekly in
early pregnancy. This BAC level is typically reached by a
55 kg female drinking six to eight beers in one sitting.
Unknown exposure
For many adopted or adult patients and children in foster care,
records or other reliable sources may not be available for review.
Reporting alcohol use during pregnancy can also be stigmatizing to
birth mothers, especially if alcohol use is ongoing. In these
cases, all diagnostic systems use an unknown prenatal alcohol
exposure designation. A diagnosis of FAS is still possible with an
unknown exposure level if other key features of FASD are present at
clinical levels.
Related signs
Other conditions may commonly co-occur with FAS, stemming from
prenatal alcohol exposure. However, these conditions are considered
Alcohol-Related
Birth Defects and not diagnostic criteria for FAS.
- Cardiac — A heart murmur that
frequently disappears by one year of age. Ventricular septal defect most
commonly seen, followed by an atrial septal defect.
- Skeletal — Joint anomalies including
abnormal position and function, altered palmar crease patterns,
small distal phalanges, and small fifth
fingernails.
- Renal — Horseshoe, aplastic,
dysplastic, or hypoplastic kidneys.
- Ocular — Strabismus, optic nerve hypoplasia (which may
cause light sensitivity, decreased
visual acuity, or involuntary eye
movements).
- Occasional abnormalities — Ptosis of the eyelid, microophthalmia,
cleft lip with or without a cleft palate, webbed neck, short neck, Tetralogy of Fallot, coarctation of the aorta, Spina bifida, and hydrocephalus.
Diagnosis
Several diagnostic systems have been developed in North America:
- The Institute of
Medicine's guidelines for FAS, the first system to standardize
diagnoses of individuals with prenatal alcohol exposure,
- The
University of
Washington
's "The 4-Digit Diagnostic Code," which ranks the
four key features of FASD on a Likert
scale of one to four and yields 256 descriptive codes that can
be categorized into 22 distinct clinical categories, ranging from
FAS to no findings.
- The Centers for Disease
Control's "Fetal Alcohol Syndrome: Guidelines for Referral and
Diagnosis," which established general consensus on the diagnosis
FAS in the U.S. but deferred addressing other FASD conditions,
and
- Canadian guidelines for FASD diagnosis, which
established criteria for diagnosing FASD in Canada
and
harmonized most differences between the IOM and University of
Washington's systems.
Fetal alcohol syndrome is the only expression of FASD that has
garnered consensus among experts to become an official
ICD-9 and
ICD-10 diagnosis. To
make this diagnosis (or determine any FASD condition), a
multi-disciplinary evaluation is
necessary to assess each of the four key features for assessment.
Generally, a trained
physician will
determine growth deficiency and FAS facial features. While a
qualified physician may also assess central nervous system
structural abnormalities and/or neurological problems, usually
central nervous system damage is determined through
psychological, assessment. A pediatric
neuropsychologist may assess all areas of functioning, including
intellectual, language processing, and sensorimotor. Prenatal
alcohol exposure risk may be assessed by a qualified physician or
psychologist.
The following criteria must be fully met for an FAS diagnosis:
- Growth deficiency — Prenatal or postnatal height or weight (or
both) at or below the 10th percentile
- FAS facial features — All three FAS facial features
present
- Central nervous system damage — Clinically significant
structural, neurological, or functional impairment
- Prenatal alcohol exposure — Confirmed or Unknown prenatal
alcohol exposure
Differential diagnosis
The CDC reviewed nine
syndromes that have
overlapping features with FAS; however, none of these syndromes
include all three FAS facial features, and none are the result of
prenatal alcohol exposure:
Prevention
The only certain way to prevent FAS is to simply avoid drinking
alcohol during pregnancy. A number of studies have shown that light
to moderate drinking during pregnancy might not pose a risk to the
fetus, although no amount of alcohol during pregnancy can be
guaranteed to be absolutely safe. The Royal College of
Obstetricians and Gynaecologists conducted a study of over 400,000
women, all of whom had consumed alcohol during pregnancy. No case
of fetal alcohol syndrome occurred and no adverse effects on
children were found when consumption was under 8.5 drinks per week.
A review of research studies found that fetal alcohol syndrome only
occurred among alcoholics; no apparent risk to the child occurred
when the pregnant women consumed no more than one drink per day. A
study of moderate drinking during pregnancy found no negative
effects and the researchers concluded that one drink per day
provides a significant margin of safety, although they did not
encourage drinking during pregnancy. A study of pregnancies in
eight European countries found that consuming no more than one
drink per day did not appear to have any effect on fetal growth. A
follow-up of children at 18 months of age found that those from
women who drank during pregnancy, even two drinks per day, scored
higher in several areas of development. An analysis of seven
medical research studies involving over 130,000 pregnancies found
that consuming two to 14 drinks per week did not increase the risk
of giving birth to a child with either malformations or fetal
alcohol syndrome.
In the United States, the
Surgeon General
recommended in 1981, and again in 2005, that women abstain from
alcohol use while pregnant or while planning a pregnancy, the
latter to avoid damage in the earliest stages of a pregnancy, as
the woman may not be aware that she has
conceived. In the United States, federal
legislation has required that warning labels be placed on all
alcoholic beverage containers since 1988 under the
Alcoholic Beverage Labeling
Act.
Treatment
There is no cure for FAS, because the CNS damage creates a
permanent disability, but treatment is possible. Because CNS
damage, symptoms, secondary disabilities, and needs vary widely by
individual though, there is no one treatment type that works for
everyone. Instead, comprehensive, multi-model approaches based on
the needs of the patient must be used. Several treatment models
have been identified, but regardless of the predominant approach,
most in the current literature recommend multiple types of
interventions to ameliorate the negative effects.
Medical interventions
Traditional
medical interventions
(i.e.,
psychoactive drugs) are
frequently tried on those with FAS because many FAS symptoms are
mistaken for or overlap with other disorders, most notably
ADHD. For instance, an FAS patient who is inattentive,
does not complete schoolwork, and cannot stay seated has
characteristics that an untrained person could easily mistake as
ADHD, especially if the patient is not yet
diagnosed with FAS. A common course of action would be a medication
referral to a pediatrician, who might recommend a trial of
Ritalin for the symptoms.
Medications are often important in treating FAS, but should be used
in conjunction with other intervention approaches to address the
multiple disabilities that arise from FAS.
Behavioral interventions
Traditional
behavioral interventions are
predicated on
learning
theory, which is the basis for many
parenting and
professional strategies and interventions. Along
with ordinary
parenting styles,
such strategies are frequently used by default for treating those
with FAS, as the diagnoses
Oppositional Defiance
Disorder (ODD),
Conduct
Disorder,
Reactive
Attachment Disorder (RAD), etc. often overlap with FAS (along
with
ADHD), and these are sometimes thought to
benefit from behavioral interventions. Frequently, a patient's poor
academic achievement results in
special education services, which also
utilizes principles of
learning theory,
behavior modification, and
outcome-based education.
Because the "learning system" of a patient with FAS is damaged,
however, behavioral interventions are not always successful, or not
successful in the long run, especially because overlapping
disorders frequently stem from or are exacerbated by FAS.
Kohn (1999) suggests that a rewards-punishment
system in general may work somewhat in the short-term but is
unsuccessful in the long-term because that approach fails to
consider content (i.e., things "worth" learning), community (i.e.,
safe,
cooperative learning
environments), and choice (i.e.,
making
choices versus following directions). While these elements are
important to consider when working with FAS and have some
usefulness in treatment, they are not alone sufficient to promote
better outcomes. Kohn's minority challenge to behavioral
interventions does illustrate the importance of factors beyond
learning theory when trying to promote improved outcomes for FAS,
and supports a more multi-model approach that can be found in
varying degrees within the advocacy model and neurobehavioral
approach.
Developmental framework
Many books and handouts on FAS recommend a developmental approach,
based on
developmental
psychology, even though most do not specify it as such and
provide little theoretical background. Optimal human development
generally occurs in identifiable stages (e.g.,
Jean Piaget's
theory of cognitive
development,
Erik Erikson's
stages of
psychosocial development,
John
Bowlby's
attachment framework,
and other
developmental
stage theories). FAS interferes with normal development, which
may cause stages to be delayed, skipped, or immaturely developed.
Over time, an unaffected child can negotiate the increasing demands
of life by progressing through stages of development normally, but
not so for a child with FAS.
By knowing what developmental stages and tasks children follow,
treatment and interventions for FAS can be tailored to helping a
patient meet developmental tasks and demands successfully. If a
patient is delayed in the
adaptive
behavior domain, for instance, then interventions would be
recommended to target specific delays through additional education
and practice (e.g., practiced instruction on tying shoelaces),
giving reminders, or making accommodations (e.g., using slip-on
shoes) to support the desired functioning level. This approach is
an advance over behavioral interventions, because it takes the
patient's developmental context into account while developing
interventions.
Advocacy model
The
advocacy model takes the point of view
that someone is needed to actively mediate between the environment
and the person with FAS. Advocacy activities are conducted by an
advocate (for example, a family member, friend, or
case manager) and fall into three basic
categories. An advocate for FAS: (1) interprets FAS and the
disabilities that arise from it and explains it to the environment
in which the patient operates, (2) engenders change or
accommodation on behalf of the patient, and (3) assists the patient
in developing and reaching attainable goals.
The advocacy model is often recommended, for example, when
developing an
Individualized Education
Program (IEP) for the patient's progress at school.
An understanding of the developmental framework would presumably
inform and enhance the advocacy model, but advocacy also implies
interventions at a systems level as well, such as educating
schools, social workers, and so forth on best practices for FAS.
However, several organizations devoted to FAS also use the advocacy
model at a
community practice
level as well.
Neurobehavioral approach
The neurobehavioral approach focuses on the
neurological underpinnings from which
behaviors and
cognitive
processes arise. It is an integrative perspective that
acknowledges and encourages a multi-modal array of treatment
interventions that draw from all FAS treatment approaches. The
neurobehavioral approach is a serious attempt at shifting
single-perspective treatment approaches into a new, coherent
paradigm that addresses the complexities of problem behaviors and
cognitions emanating from the CNS damage of FAS.
The neurobehavioral approach's main proponent is Diane Malbin, MSW,
a recognized speaker and trainer in the FASD field, who first
articulated the approach with respect to FASD and characterizes it
as "
Trying differently rather than trying harder." The
idea to
try differently refers to trying different
perspectives and intervention options based on effects of the CNS
damage and particular needs of the patient, rather than
trying
harder at implementing behavioral-based interventions that
have consistently failed over time to produce improved outcomes for
a patient. This approach also encourages more strength-based
interventions, which allow a patient to develop positive outcomes
by promoting success linked to the patient's strengths and
interests.
Public health and policy
Treating FAS at the
public health and
public policy levels promotes FAS
prevention and diversion of
public
resources to assist those with FAS. It is related to the
advocacy model but promoted at a systems level (rather than with
the individual or family), such as developing community education
and supports, state or province level prevention efforts (e.g.,
screening for maternal alcohol use during
OB/GYN or prenatal medical care visits), or national
awareness programs. Several organizations and state agencies in the
U.S. are dedicated to this type of intervention.
Prognosis
Primary disabilities
The primary disabilities of FAS are the functional difficulties
with which the child is born as a result of CNS damage due to
prenatal alcohol exposure. Often, primary disabilities are mistaken
as
behavior problems, but the underlying CNS damage is the
originating source of a functional difficulty (rather than a mental
health condition, which is considered a secondary
disability).
The exact mechanisms for functional problems of primary
disabilities are not always fully understood, but
animal studies have begun to shed light on
some correlates between functional problems and brain structures
damaged by prenatal alcohol exposure. Representative examples
include:
Functional difficulties may result from CNS damage in more than one
domain, but common functional difficulties by domain include: (This
is not an exhaustive list of difficulties.)
- Achievement — Learning
disabilities
- Adaptive behavior — Poor impulse control, poor personal boundaries, poor anger management, stubbornness, intrusive
behavior, too friendly with strangers, poor daily living skills, developmental
delays
- Attention — Attention-Deficit/Hyperactivity
Disorder (ADHD), poor attention or concentration,
distractible
- Cognition — Mental
retardation, confusion under pressure, poor abstract skills, difficulty distinguishing
between fantasy and reality, slower cognitive processing
- Executive functioning — Poor judgment, Information-processing disorder, poor at
perceiving patterns, poor cause and effect reasoning, inconsistent
at linking words to actions, poor generalization ability
- Language — Expressive or receptive
language disorders, grasp parts not whole concepts, lack
understanding of metaphor, idioms, or sarcasm
- Memory — Poor short-term
memory, inconsistent memory and knowledge base
- Motor skills — Poor handwriting, poor fine motor skills, poor gross motor skills, delayed motor skill
development (e.g., riding a bicycle at appropriate age)
- Sensory integration and soft
neurological problems — sensory integration
dysfunction, sensory
defensiveness, undersensitivity to stimulation
- Social communication — Intrude into conversations, inability to
read nonverbal or social cues, "chatty" but
without substance
Secondary disabilities
The secondary disabilities of FAS are those that arise later in
life secondary to CNS damage. These disabilities often emerge over
time due to a mismatch between the primary disabilities and
environmental expectations; secondary disabilities can be
ameliorated with early interventions and appropriate supportive
services.
Six main secondary disabilities were identified in a University of
Washington research study of 473 subjects diagnosed with FAS, PFAS
(partial fetal alcohol syndrome), and ARND (alcohol-related
neurodevelopmental disorder):
- Mental health problems —
Diagnosed with ADHD, Clinical Depression, or other mental illness, experienced by over 90% of
the subjects
- Disrupted school experience — Suspended or expelled from school
or dropped out of school, experienced by 60% of the subjects (age
12 and older)
- Trouble with the law — Charged or convicted with a crime,
experienced by 60% of the subjects (age 12 and older)
- Confinement — For inpatient psychiatric care, inpatient
chemical dependency care, or incarcerated for a crime, experienced
by about 50% of the subjects (age 12 and older)
- Inappropriate sexual behavior — Sexual advances, sexual
touching, or promiscuity, experienced by about 50% of the subjects
(age 12 and older)
- Alcohol and drug problems — Abuse or dependency, experienced by
35% of the subjects (age 12 and older)
Two additional secondary disabilities exist for adult patients:
- Dependent living — Group home, living with family or friends,
or some sort of assisted living, experienced by 80% of the subjects
(age 21 and older)
- Problems with employment — Required ongoing job training or
coaching, could not keep a job, unemployed, experienced by 80% of
the subjects (age 21 and older)
Protective factors and strengths
Eight factors were identified in the same study as universal
protective factors that reduced the incidence rate of the secondary
disabilities:
- Living in a stable and nurturant home for over 72% of life
- Being diagnosed with FAS before age six
- Never having experienced violence
- Remaining in each living situation for at least 2.8 years
- Experiencing a "good quality home" (meeting 10 or more defined
qualities) from age 8 to 12 years old
- Having been found eligible for developmental disability (DD)
services
- Having basic needs met for at least 13% of life
- Having a diagnosis of FAS (rather than another FASD
condition)
Malbin (2002) has identified the following areas of interests and
talents as strengths that often stand out for those with FASD and
should be utilized, like any strength, in treatment planning:
- Music, playing instruments, composing, singing, art, spelling,
reading, computers, mechanics, woodworking, skilled vocations
(welding, electrician, etc.), writing, poetry
History
Historical references
Anecdotal accounts of prohibitions against maternal alcohol use
from
biblical,
ancient Greek, and
ancient Roman sources imply a historical
awareness of links between maternal alcohol use and negative child
outcomes.
In Gaelic Scotland
, the mother
and nurse were not allowed to consume ale during
pregnancy and breastfeeding (Martin
Martin).
The
earliest recorded observation of possible links between maternal
alcohol use and fetal damage was made in 1899 by Dr. William
Sullivan, a Liverpool
prison physician who noted higher rates of stillbirth for 120 alcoholic female prisoners
than their sober female relatives; he suggested the causal agent to
be alcohol use. This contradicted the predominating belief
at the time that heredity caused mental retardation, poverty, and
criminal behavior, which contemporary studies on the subjects
usually concluded. A case study by
Henry H. Goddard of the
Kallikak family — popular in the early 1900s —
represents this earlier perspective, though later researchers have
suggested that the Kallikaks almost certainly had FAS. General
studies and discussions on alcoholism throughout the mid-1900s were
typically based on a heredity argument.
Prior to fetal alcohol syndrome being specifically identified and
named in 1973, a few studies had noted differences between the
children of mothers who used alcohol during
pregnancy or
breast-feeding and those who did not, but
identified alcohol use as a possible contributing factor rather
than heredity.
Recognition as a syndrome
Fetal Alcohol Syndrome was named in 1973 by two
dysmorphologists, Drs.
Kenneth Lyons Jones
and David Weyhe Smith of the
University of
Washington
Medical School in Seattle
, United States
. They identified a pattern of "craniofacial,
limb, and cardiovascular defects associated with prenatal onset
growth deficiency and developmental delay" in eight unrelated
children of three
ethnic groups, all born
to mothers who were
alcoholics. The
pattern of malformations indicated that the damage was prenatal.
News of the discovery shocked some, while others were skeptical of
the findings.
Dr. Paul
Lemoine of Nantes
, France had
already published a study in a French medical journal in 1968 about
children with distinctive features whose mothers were alcoholics,
and in the U.S., Christy Ulleland and colleagues at the University
of Washington Medical School had conducted an 18-month study in
1968–1969 documenting the risk of maternal alcohol consumption
among the offspring of 11 alcoholic mothers. The Washington and
Nantes findings were confirmed by a research group in Gothenburg
, Sweden
in
1979. Researchers in France, Sweden, and the
United
States
were struck by how similar these children looked,
though they were not related, and how they behaved in the same
unfocused and hyperactive
manner.
Within nine years of the Washington discovery, animal studies,
including non-human
monkey studies carried
out at the University of Washington Primate Center by Dr.
Sterling Clarren, had confirmed that
alcohol was a
teratogen. By 1978, 245
cases of FAS had been reported by medical researchers, and the
syndrome began to be described as the most frequent known cause of
mental retardation.
While many
syndromes are
eponymous, i.e. named after the physician first
reporting the association of symptoms, Dr. Smith named FAS after
the causal agent of the symptoms. He reasoned that doing so would
encourage prevention, believing that if people knew maternal
alcohol consumption caused the syndrome, then abstinence during
pregnancy would follow from
patient
education and public awareness. Nobody was aware of the full
range of possible birth defects from FAS or its prevalence rate at
that time, but admission of alcohol use during pregnancy can feel
stigmatizing to birth mothers and complicate diagnostic efforts of
a syndrome with its preventable cause in the name.
Over time, as subsequent research and clinical experience suggested
that a range of effects (including physical, behavioral, and
cognitive) could arise from prenatal alcohol exposure, the term
Fetal Alcohol Spectrum
Disorder (FASD) was developed to include FAS as well as other
conditions resulting from prenatal alcohol exposure. Currently, FAS
is the only expression of prenatal alcohol exposure defined by the
International Statistical Classification of Diseases
and Related Health Problems and assigned
ICD-9 and diagnoses.
Education
Common areas of concern in the classroom
- Distractibility
- Problems with concrete thinking
- Easily frustrated
- Poor fine and gross motor skills
- Poor attention
- Lack of organizational skills
- Poor peer relations
Strategies for teachers
- Place the child near the front of the room to help him or her
focus.
- Allow the student to take short breaks when necessary.
- Give the child extra time. Allow them enough time to prepare
for the next activity, they do not do well rushed.
- Have them perform one task at a time. They struggle with
multi-step directions. To make sure they understand, have them
repeat the instructions. Walk them through a new activity
first.
- Because their handwriting is often poor, a computer may be a
better way for them to complete their assignments.
- Math skills are difficult. Using manipulatives makes learning
easier.
- Behavior problems become more apparent as children enter grade
school. This may result in an outburst or fight.
- Punishment is not always the best answer since FAS/FASD
children may not understand why they are being punished. Try
defusing the situation as calmly as possible and moving into a new
activity.
- Using visuals, concrete examples and hands-on learning makes
school easier.
- Encourage success and reward positive behavior with praise or
incentives. Positive reinforcement should be immediate to help with
understanding.
Children with FAS/FASD can learn, they just need to use different
paths to get there. If one technique is not successful, try
something new.
See also
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http://www.sciencedaily.com/releases/2009/11/091119193626.htm
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