Explainer: foetal alcohol spectrum disorders

The debate about alcohol’s harms is seemingly endless: the role of alcohol in violence, unplanned sex, injury and motor vehicle accidents, the teen binge-drinking epidemic, the risks of cancer and liver disease from chronic alcohol use and raising the legal age for purchase have all been discussed. Notably…

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It’s impossible to know how much alcohol is safe to consume during pregnancy. Jason Coleman

The debate about alcohol’s harms is seemingly endless: the role of alcohol in violence, unplanned sex, injury and motor vehicle accidents, the teen binge-drinking epidemic, the risks of cancer and liver disease from chronic alcohol use and raising the legal age for purchase have all been discussed. Notably absent from the discussion is the effect of alcohol on the unborn child.

Foetal exposure to alcohol can have devastating consequences, impairing the subsequent growth, neurodevelopment, learning, and quality of life for the child.

Alcohol is toxic to the foetal brain

Alcohol is a teratogen, or toxin, that readily crosses the placenta. When a pregnant woman drinks, the foetus is bathed by blood containing alcohol, which can disrupt development of the brain, internal organs and face.

Foetal alcohol spectrum disorders encompasses a range of disorders that may result from alcohol exposure in the womb, including foetal alcohol syndrome, neurodevelopmental disorder associated with alcohol exposure, and a range of alcohol-related birth defects.

In north America, foetal alcohol spectrum disorders are the most common cause of developmental delay and are said to affect between 2% and 7% of all births.

Children with foetal alcohol spectrum disorders have variable clinical features. They may have a small or structurally abnormal brain, but even in the absence of such changes, they may have significant abnormalities of function, including problems with learning that limit their academic achievement. Ultimately, this affects their capacity for employment and independent living.

Although the IQ range for such children is wide, they have particular problems with memory, executive function (planning and conduct of complex tasks), and numeracy. They often require remedial education, and frequently exhibit difficult behaviours (attention deficit hyperactivity disorder, conduct and oppositional disorders, risk-taking, anxiety and depression). They may have either solitary or overly-friendly personalities.

These children may grow poorly and have defects, and hence abnormal function, of the heart, kidneys, ears, eyes and other organs. These problems don’t go away.

Foetal alcohol spectrum disorders are lifelong and as children enter adolescence, they are at higher risk than the general population of drug and alcohol dependence, anti-social and inappropriate sexual behaviours, mental health disorders, trouble with the law and incarceration.

But these disorders are preventable.

Safe drinking and pregnancy

People frequently ask how much alcohol is safe during pregnancy. Of course, this can never be answered based in human studies, and I think that it may, in fact, be irrelevant.

We know that women who drink no alcohol during pregnancy pose no risk to their foetus. And we know that frequent, high intake, particularly binge drinking, increases the risk. We also know that birth defects may result from first trimester alcohol exposure but that the brain is vulnerable to damage throughout the pregnancy.

And we know that risk to an individual pregnancy is impossible to predict because maternal (and hence foetal) blood alcohol levels are influenced by a range of factors including age, body composition, genetics and prior disease. So it’s better to apply the precautionary principle as recommended in Australia’s national alcohol guidelines – “for women who are pregnant or planning a pregnancy, not drinking alcohol is the safest option.”

Adding to this complexity is the high rate of unplanned pregnancy, estimated at around 50%, which suggests that inadvertent alcohol exposure may be common.

Prevention is the only option

Strategies to address foetal alcohol spectrum disorder have to focus on prevention. We need highlight the potential harms of alcohol use in pregnancy, as many women and their partners just don’t know about it. This will involve public education strategies, including labelling of alcoholic beverages.

But labelling will only effectively improve knowledge if mandated and enforced, not left to the alcohol industry. Labels must be legible, prominent, and informative.

A recent survey by the Foundation for Alcohol Research and Education (FARE) has showed that, under the current voluntary code, only 16% of alcoholic beverages were labelled and many of these were unreadable or simply referred to a website.

And this brings me back to the debate about alcohol raging in our community. Preventing foetal alcohol spectrum disorder, like all other alcohol-related harms, requires attitudinal and behavioural change. Prohibition is not the solution and behavioural change must be supported by interventions with proven efficacy.

This is the eighth part of our series looking at alcohol and the drinking culture in Australia. Click on the links below to read the other articles:

Part One: A brief history of alcohol consumption in Australia

Part Two: Social acceptance of alcohol allows us to ignore its harms

Part Three: My drinking, your problem: alcohol hurts non-drinkers too

Part Four: Alcohol-fuelled violence on the rise despite falling consumption

Part Five: ‘As a matter of fact, I’ve got it now’: alcohol advertising and sport

Part Six: Advertising’s role in how young people interact with alcohol

Part Seven: Big Alcohol and Big Tobacco – boozem buddies?

Part Nine: ‘Valuable label real estate’ and alcohol warning labels

Part Ten: Forbidden fruit: are children tricked into wanting alcohol?

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23 Comments sorted by

  1. Comment removed by moderator.

    1. Judith Olney

      Ms

      In reply to Anne Russell

      Anne, how do you suggest advertising to women, who may have no intention to get pregnant, but do so accidently?

      This has happened to at least 2 of my friends, who fell pregnant, even though they were using contraception, and did not know until well into the first trimester. As they didn't know, and didn't expect to be pregnant, they did not modify their drinking behaviour. As soon as they realised they were pregnant they did not drink alcohol for the duration of the pregnancy.

      Neither child…

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    2. Anne Russell

      Enterprise development

      In reply to Judith Olney

      Your stories are terrible Judith and i really feel for those mothers. However personally i would rather have had my mental health compromised worrying about my baby during pregnancy than worrying about him for the rest of his life because he has Fetal Alcohol Syndrome. I, unlike others, dont think that FASD is 100% preventable and you have cited many reasons why this is the case. While the women you know may know that alcohol is dangerous, there are many who don't and a media campaign will help…

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    3. Charles Watson

      John Curtin Distinguished Professor of Health Science at Curtin University

      In reply to Judith Olney

      This is the real quandary. It seems to me that the most likely time for alcohol to have an effect is in the first 4-6 weeks of pregnancy, and most of that time the existence of the pregnancy is unknown.
      I do wish that The Conversation would spell 'fetal' correctly. The 19th century love of dipthongs changed 'fetus' to 'foetal' which is simply wrong.
      The relevant latin word is 'fetus.'

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    4. Judith Olney

      Ms

      In reply to Anne Russell

      As I said Anne, I have no problem with educating people of the problems of drinking alcohol when pregnant, and no problem with educating people about the harm caused.

      You may not personally value your mental health, but my friends severe depression, both while pregnant, and after her child was born is far more damaging to both her and her child than a few drinks would have ever caused. There is nothing worse for a mother than believing that she has possibly injured her child, even if she did so unknowingly.

      There needs to be more factual information, rather than the exaggeration and fear tactics used in public health campaigns, so that we don't end up with the situation my friends were in.

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    5. Kim Darcy

      Analyst

      In reply to Judith Olney

      Judith, your post sent a chill up my spine. I had never considered this issue before. If I were the women, I would have an abortion immediately (a decision which is overwhelmingly wretching no matter the reason). I'm not going to presume to tell women how to react in this situation, but I do query when you say, "There is nothing worse for a mother than believing that she has possibly injured her child, even if she did so unknowingly." Wouldn't it be even worse if the mother knew she HAD actually…

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    6. Judith Olney

      Ms

      In reply to Kim Darcy

      Kim, I spoke about the situation my friends were in because I want to show that these public health campaigns need to be more informative of the actual facts of a situation, the level of risk, and the levels of harm, that are involved. At the moment we have the fear without the facts.

      None of my friends, mentioned in my post, are alcoholic, or even heavy drinkers, they were women that had a few social drinks, in other words they were not in any high risk category for having a child with FAS or…

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    7. Kim Darcy

      Analyst

      In reply to Judith Olney

      Judith, the fact your post sent a chill up even MY spine, shows how much of the alcohol fear campaign I have already absorbed, without ever having sought out information about the issue. It would surprise me if there were many people in Australia who have not absorbed a similar dose of the fear campaign.

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    8. Richard Windsor

      logged in via Facebook

      In reply to Judith Olney

      From the cited article
      "The occurrence of FAS has been shown to vary between communities of the same racial group while within high-risk populations only a small number of women will produce affected children. A number of component causes appear to increase
      the risk of FAS occurring, in particular low socio-economic status, pattern of drinking, age or duration of drinking, genetic predisposition, maternal nutrition and health, smoking and loss
      of traditional culture."
      This data is more than 10 years old but in the intervening years, little seems to have been clarified. Mental wellness issues , smoking and nutrition appear to be of paramount importance. However , correlation does not equal causality.
      The overlap between the behavioural characteristics of ADHD and FASD appears to be more than coincidental. The relationship between ADHD and nicotine is beyond doubt. There is a relationship between alcohol consumption and tobacco, are they additive in causality?

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    9. Richard Hockey

      logged in via Facebook

      In reply to Judith Olney

      From the review:
      "Overall, there appears to be no sound evidence that low levels
      of alcohol consumption produce FAS and FAE/ARND."

      R

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  2. Jac Hancox

    BSc. Agriculture - Biotech undergraduate

    Quite a few years ago now, I chose to do a research project in high school on this topic. What I learned stayed with me and when the time came for me to plan my pregnancies I completely abstained from alcohol as did my partner for 3 months preceding the start of our efforts to conceive (to produce the healthiest 'swimmers' possible). Perhaps teaching young people about this could help? Also incorporated could be a message of non-judgement of non-planned pregnancies and what the mother in such a position…

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  3. Anne Russell

    Enterprise development

    Congratulations on the explanation of FASD Liz. I particularly like your comment that finding the lower level of alcohol that can be consumed while pregnant is irrelevant. I would say - ridiculously irrelevant, money-wasting and liable to give people the wrong impression of the role alcohol plays in fetal development. Many people may not be aware that alcohol is a teratogen - a substance that causes birth defects - for the lay person, alcohol to the fetus is like Mercury or Thalidomide. Why would…

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  4. Steve Hindle

    logged in via email @bigpond.com

    In some indigenous communities FASD has been as high 30% of all births and possibly still is. With such a high number of damaged children attending school the teachers are faced with an impossible task. The behaviour problems alone end up severely effecting the education of all the students.

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    1. Kim Darcy

      Analyst

      In reply to Steve Hindle

      Steve that is an important point. Does any of the research into FASD break down the demographics of kids born with FASD? Does it occur uniformly across society, or is it concentrated in specific communities/demographics, who would be more appropriately targeted for education campaigns, rather than blanket TV ads, and questionable alcohol labeling diktats?

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    2. Judith Olney

      Ms

      In reply to Kim Darcy

      Kim, have a look a the link in my post, it is a review of the available literature, and gives some facts about FAS and FAE.

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    3. Charles Watson

      John Curtin Distinguished Professor of Health Science at Curtin University

      In reply to Judith Olney

      I wonder if any of you have seen the recent alcohol and pregnancy TV campaign in WA run by the Drug and Alcohol office. It was carefully designed (on the basis of 2 years research with young women, pregnant and not) to not raise anxiety but to promote abstinence as a health choice. The response was very good.
      The ads are definitely worth a look.

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    4. Judith Olney

      Ms

      In reply to Charles Watson

      Charles, I live in WA and have seen the ads that are targeted towards the Indigenous community. I agree with you, that these ads are very good, they not only show the pregnant woman not drinking alcohol, but also show that the father can be supportive by giving up alcohol as well.

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    5. Steve Hindle

      logged in via email @bigpond.com

      In reply to Kim Darcy

      Kim, here is a very sad quote from a Lateline interview about the WA town of Halls Creek (pop approx 1300).
      "In the remote town of Halls Creek it's estimated 90 per cent of pregnant women are alcoholic, and nearly a third of babies suffer from Foetal Alcohol Syndrome." http://www.abc.net.au/lateline/content/2008/s2530393.htm
      This is pre-alcohol restrictions. I don't know of any studies that show how these restrictions have changed the incidence of FASD.

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    6. Kim Darcy

      Analyst

      In reply to Steve Hindle

      Does the public health industry support grog bans in Aboriginal communities?

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    7. Steve Hindle

      logged in via email @bigpond.com

      In reply to Kim Darcy

      I think many in the public health industry keep quite due the politics of grog bans as it is seen by many activists as a racist policy.
      It ends up being a judgement on reducing peoples rights against the rights of children to be born without preventable brain damage. My very wild guess is that the bans are about 50% effective in reducing FASDs and are therefore worth doing. Long term however, fairer solutions are needed and the effectiveness of grog bans needs to be measured.

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  5. James Jenkin

    EFL Teacher Trainer

    This, like many Coversation articles on public health, describes a medical problem based on clear evidence. - and then advocates a solution (i.e. labelling) without providing evidence it will work.

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