Health

New Publication: ‘Overriding Adolescent Refusals of Treatment’

Written by Anthony Skelton, Lisa Forsberg, and Isra Black

Consider the following two cases:

Cynthia’s blood transfusion. Cynthia is 16 years of age. She is hit by a car on her way to school. She is rushed to hospital. She sustains serious, life-threatening injuries and loses a lot of blood. Her physicians conclude that she needs a blood transfusion in order to survive. Physicians ask for her consent to this course of treatment. Cynthia is intelligent and thoughtful. She considers, understands and appreciates her medical options. She is deemed to possess the capacity to decide on her medical treatment. She consents to the blood transfusion.

Nathan’s blood transfusion. Nathan is 16 years of age. He has Crohn’s disease. He is admitted to hospital with lower gastrointestinal bleeding. According to the physicians in charge of his care, the bleeding poses a significant threat to his health and to his life. His physicians conclude that a blood transfusion is his best medical option. Nathan is intelligent and thoughtful. He considers, understands and appreciates his medical options. He is deemed to possess the capacity to decide on his medical treatment. He refuses the blood transfusion.

Under English Law, Cynthia’s consent has the power to permit the blood transfusion offered by her physicians. Her consent is considered to be normatively (and legally) determinative. However, Nathan’s refusal is not normatively (or legally) determinative. Nathan’s refusal can be overridden by consent to the blood transfusion of either a parent or court. These parties share (with Nathan) the power to consent to his treatment and thereby make it lawful for his physicians to provide it.

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Exercise, Population Health and Paternalism

Written by Rebecca Brown

 

The NHS is emphatic in its confidence that exercise is highly beneficial for health. From their page on the “Benefits of exercise” come statements like:

“Step right up! It’s the miracle cure we’ve all been waiting for”

“This is no snake oil. Whatever your age, there’s strong scientific evidence that being physically active can help you lead a healthier and happier life”

“Given the overwhelming evidence, it seems obvious that we should all be physically active. It’s essential if you want to live a healthy and fulfilling life into old age”.

Setting aside any queries about the causal direction of the relationship between exercise and good health, or the precise effect size of the benefits exercise offers, it at least seems that the NHS is convinced that it is a remarkably potent health promotion tool. Continue reading

Three Observations about Justifying AI

Written by:  Anantharaman Muralidharan, G Owen Schaefer, Julian Savulescu
Cross-posted with the Journal of Medical Ethics blog

Consider the following kind of medical AI. It consists of 2 parts. The first part consists of a core deep machine learning algorithm. These blackbox algorithms may be more accurate than human judgment or interpretable algorithms, but are notoriously opaque in terms of telling us on what basis the decision was made. The second part consists of an algorithm that generates a post-hoc medical justification for the core algorithm. Algorithms like this are already available for visual classification. When the primary algorithm identifies a given bird as a Western Grebe, the secondary algorithm provides a justification for this decision: “because the bird has a long white neck, pointy yellow beak and red eyes”. The justification goes beyond just a description of the provided image or a definition of the bird in question, and is able to provide a justification that links the information provided in the image to the features that distinguish the bird. The justification is also sufficiently fine grained as to account for why the bird in the picture is not a similar bird like the Laysan Albatross. It is not hard to imagine that such an algorithm would soon be available for medical decisions if not already so. Let us call this type of AI “justifying AI” to distinguish it from algorithms which try, to some degree or other, to wear their inner workings on their sleeves.

Possibly, it might turn out that the medical justification given by the justifying AI sounds like pure nonsense. Rich Caruana et al present a  case whereby asthmatics were deemed less at risk of dying by pneumonia. As a result, it prescribed less aggressive treatments for asthmatics who contracted pneumonia. The key mistake the primary algorithm made was that it failed to account for the fact that asthmatics who contracted pneumonia had better outcomes only because they tended to receive more aggressive treatment in the first place. Even though the algorithm was more accurate on average, it was systematically mistaken about one subgroup. When incidents like these occur, one option here is to disregard the primary AI’s recommendation. The rationale here is that we could hope to do better than by relying on the blackbox alone by intervening in cases where the blackbox gives an implausible recommendation/prediction. The aim of having justifying AI is to make it easier to identify when the primary AI is misfiring. After all, we can expect trained physicians to recognise a good medical justification when they see one and likewise recognise bad justifications. The thought here is that the secondary algorithm generating a bad justification is good evidence that the primary AI has misfired.

The worry here is that our existing medical knowledge is notoriously incomplete in places. It is to be expected that there will be cases where the optimal decision vis a vis patient welfare does not have a plausible medical justification at least based on our current medical knowledge. For instance, Lithium is used as a mood stabilizer but the reason why this works is poorly understood. This means that ignoring the blackbox whenever a plausible justification in terms of our current medical knowledge is unavailable will tend to lead to less optimal decisions. Below are three observations that we might make about this type of justifying AI.

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Cognitive snobbery: The Unacceptable Bias in Favour of the Conscious

There are many corrosive forms of discrimination. But one of the most dangerous is the bias in favour of consciousness, and the consequent denigration of the unconscious.

We see it everywhere. It’s not surprising. For when we’re unreflective – which is most of the time – we tend to suppose that we are our conscious selves, and that the unconscious is a lower, cruder part of us; a seething atavistic sea full of monsters, from which we have mercifully crawled, making our way ultimately to the sunlit uplands of the neocortex, there to gaze gratefully and dismissively back at what we once were.  It’s a picture encoded in our self-congratulatory language: ‘Higher cognitive function’; ‘She’s not to be blamed: she wasn’t fully conscious of the consequences.’: ‘In the Enlightenment we struck off the shackles of superstition and freed our minds to roam.’ Continue reading

Shaming unvaccinated people has to stop. We’ve turned into an angry mob and it’s getting ugly

Written by Alberto Giubilini and Julian Savulescu. Cross-Posted from The Conversation 
Shutterstock

Julian Savulescu, University of Oxford and Alberto Giubilini, University of Oxford

Unvaccinated mother, 27, dies with coronavirus as her father calls for fines for people who refuse jab.

This is the kind of headline you may have seen over the past year, an example highlighting public shaming of unvaccinated people who die of COVID-19.

One news outlet compiled a list of “notable anti-vaxxers who have died from COVID-19”.

There’s shaming on social media, too. For instance, a whole Reddit channel is devoted to mocking people who die after refusing the vaccine.

COVID-19 vaccinations save lives and reduce the need for hospitalisation. This is all important public health information.

Telling relatable stories and using emotive language about vaccination sends a message: getting vaccinated is good.

But the problem with the examples above is their tone and the way unvaccinated people are singled out. There’s also a murkier reason behind this shaming.

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Paying for the Flu Vaccine

By Ben Davies

As I do every winter, I recently booked an appointment for a flu vaccine. I get it for free in the UK. If I didn’t have asthma, I’d still get vaccinated, but it would cost me between £9 and £14.99. That is both an ethical error on the part of the government, and may be a pragmatic one too.

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The double ethical mistake of vaccinating children against COVID-19

 

Alberto Giubilini

Oxford Uehiro Centre for Practical Ethics

University of Oxford

 

Against the Joint Committee on Vaccination and Immunisation (JCVI)’s advice that did not recommend COVID-19 vaccination for children, the four Chief Medical Officers in the UK have just recommended that all children aged 12-15 should be vaccinated with the mRNA Pfizer/BioNTech vaccine.

This is a double ethical mistake, given our current state of knowledge.

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Philosophical Fiddling While the World Burns

By Charles Foster

An unprecedented editorial has just appeared in many health journals across the world. It relates to climate change.

The authors say that they are ‘united in recognising that only fundamental and equitable changes to societies will reverse our current trajectory.’

Climate change, they agree, is the major threat to public health. Here is an excerpt: there will be nothing surprising here:

‘The risks to health of increases above 1.5°C are now well established. Indeed, no temperature rise is “safe.” In the past 20 years, heat related mortality among people aged over 65 has increased by more than 50%.Hi gher temperatures have brought increased dehydration and renal function loss, dermatological malignancies, tropical infections, adverse mental health outcomes, pregnancy complications, allergies, and cardiovascular and pulmonary morbidity and mortality. Harms disproportionately affect the most vulnerable, including children, older populations, ethnic minorities, poorer communities, and those with underlying health problems.’ Continue reading

We Should Vaccinate Children in High-income Countries Against COVID-19, Too

Written by Lisa Forsberg, Anthony Skelton, Isra Black

In early September, children in England, Wales and Northern Ireland are set to return to school. (Scottish schoolchildren have already returned.) Most will not be vaccinated, and there will be few, if any, measures in place protecting them from COVID-19 infection. The Joint Committee on Vaccination and Immunisation (JCVI) have belatedly changed their minds about vaccinating 16- and 17-year olds against COVID-19, but they still oppose recommending vaccination for 12-15 year olds. This is despite considerable criticism from public health experts (here, here, and here), and despite the UK’s Medicines and Healthcare products Regulatory Agency (MHRA) declaring COVID-19 vaccines safe and effective for children aged 12 and up—Pfizer/BioNTech in the beginning of June, and Moderna the other week.

In Sweden, children returned to school in the middle of August. As in the UK, children under 16 will be unvaccinated, and there will be few or no protective measures, such as improved ventilation, systematic testing, isolation of confirmed cases, and masking. Like the JCVI in the UK, Sweden’s Folkhälsomyndigheten opposes vaccination against COVID-19 for the under-16s, despite Sweden’s medical regulatory authority, Läkemedelsverket, having approved the Pfizer and Moderna vaccines for children from the age of 12. The European Medicines Agency approved Pfizer and Moderna in May and July respectively, declaring that any risks of vaccine side-effects are outweighed by the benefits for this age group.

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Healthcare, Responsibility, and Golden Opportunities

Written by Gabriel De Marco

This blog post is based on a co-authored paper (w. Tom Douglas and Julian Savulescu) recently published in Ethical Theory and Moral Practice.

 

When it comes to determining how healthcare resources should be allocated, there are many factors that could—and perhaps should—be taken into account. One such factor is a patient’s responsibility for his or her illness, or for the behavior that caused it; e.g. whether a lifetime smoker is responsible for developing his lung cancer, or whether someone is responsible for heart disease on the basis of having an unhealthy diet. Policies that take responsibility for the unhealthy lifestyle or its outcomes into account—responsibility-sensitive policies, or RSPs, for short—have been a matter of debate for some time.

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