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Posts Tagged End of Life

Locked In Jim McVeagh Feb 06

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Scientists have shown that a patient in a persistent vegetative state can actually understand  and “answer” questions. Use of functional Magnetic Resonance Imaging has shown very specific brain activity in response to questioning. Activity that can be interpreted in no other way than as a response to a question. This would tend to indicate that the patient in question still maintains higher brain functions. This type of persistent vegetative state is known as being “locked in” and appears to be the type of state that may eventually recover, although this has yet to be established.

This makes the arguments for euthanasia in comatose patients that much more difficult. It is clear from this interesting experiment that our understanding of the comatose state is very limited and that brain functions in comatose people may still be present. Certainly it is dangerous to argue that a person in a long-term coma is “just a shell” or the “living dead” as the Herald puts it.

This does not mean there is no valid ground for euthanasia of comatose patients, just that the justifications now move to the more subjective area of choice. “This is not what X would have wanted”, is still a possible argument, but “X is long dead” might not.

On the other hand, from a medical viewpoint, being able to run a more definitive test to see if brain function has truly completely ceased, may make those difficult, traumatic “ventilator” decisions a little easier. It would be good if we can put death into the “beyond reasonable doubt” category in these cases.

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Related posts:

  1. Euthanasia (Part 1)
  2. Locked Away
  3. Strange Mercy

Euthanasia (Part 2) Jim McVeagh Dec 24

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End of Life Issues

I have blogged about these issues before, using the sad case of Eluana Englaro as an example, here and here.

For most of us, death comes as a discrete event. The doctor pokes your corpse a bit, listens for a heartbeat and breathing, finds none and writes out your death certificate. You are then officially an ex-person.

For some, things are not so cut and dried. Large strokes, poor resuscitations and serious head injuries make up the vast majority of these poor people. People who are most probably dead, but bits of their body are still functioning. In Englaro’s case, Silvio Berlusconi, the Italian Prime Minister once famously and bizarrely observed that she could still bear children. I do hope they are not taking him too seriously at Copenhagen…

Regardless of the functionality of our reproductive organs or our kidneys or our liver, or even our hearts, the accepted neurological definition of death is the cessation of all higher brain function, even when stimulated. This can usually be determined by an EEG, but an MRI is more accurate. Usually this is sufficient when the patient is being ventilated. I think that ventilation is so obviously artificial, that relatives are far more accepting of the decision to switch it off. After all, they are not “switching off” their loved one, just a machine that is aerating a corpse.

The difficulty comes with a case like Englaro’s. Automaticity kicks in and the heart and lungs just keep going. If the unfortunate person is young, and feeding is maintained by nasogastric tube or stomach tube, then this half-life will persist, sometimes for decades. Even more complex are those who have some demonstrable, if inconsistent higher brain function, like Terry Schiavo, or have mostly normal brain function but are “locked in” – unable to initiate muscular action, including speech and eye movement.

In the second two cases, the discussion moves away from end-of-life to quality-of-life issues. These are not dead people, kept semi-alive by medical expertise. These are living, but severely disabled, people. There needs to be established brain death for this to be an end-of-life decision.

I am somewhat uncomfortable with the italian doctors decision to stop feeding Englaro. Although death by dehydration is not as uncomfortable as is sometimes made out, I have a problem with the assisted nature of this kind of death. It seems to me to be more ethical to continue feeding and nursing cares but to withdraw all medical interventions. After a month or two, she would have quietly succumbed to pneumonia or sepsis – a natural end for someone in a coma. Admittedly, it would be hard to question the ethics of even a lethal injection here, as Englaro had been technically dead for 17 years, but going against the Hippocratic oath so dramatically would not be a good thing.

While I think relatives have a perfect right to request that doctors do not intervene, the have no right to insist that we kill…

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  1. Euthanasia (Part 1) Euthanasia is a topic not unlike abortion, in that it…
  2. Eluana Englaro Dies Eluana Englaro is dead. Who? – most of us will…
  3. Euthanasia (Part 4) Quality of Life Issues (involuntary euthanasia) Now we move into…

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Euthanasia (Part 1) Jim McVeagh Dec 23

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Euthanasia is a topic not unlike abortion, in that it generates a great deal of heat in a conversation and very little light. Like abortion, it is being practiced in New Zealand. Unlike abortion, there is no set of rules to guide it’s use and overt euthanasia often meets the business end of Law Enforcement – manslaughter and murder convictions being common sequelae. Unlike abortion, the issues involved are often far more complex and often involve decision processes from many different people at the same time. There are also multiple meanings for the word euthanasia which creates additional confusion in the debate.

Normally, I break up the term into three distinct groups:

  1. End of life issues. These are the debates about whether a patient is actually dead or not.
  2. Quality of life issues. These include the severely brain-damaged and the terminally ill who are in constant pain. Quality of life issues further sub-divide into voluntary – where the patient makes the choice to end their life – and involuntary – where the decision is made by an external agent such as a relative, friend or doctor.
  3. Quantity of life issues. Where treatment is withheld or active euthanasia is offered solely on the basis of a single criteria, without regard to quality of life. The commonest example here is ageism in medicine. Nasty things like eugenics come into this.

I will deal with each of these separately in other posts. For today, I want to look at another way that euthanasia is divided – into passive and active euthanasia. I am uncertain as to whether this is actually a real division. While there seems a clear distinction between, say, a doctor witholding futile treatment from a dying patient and the same doctor injecting an overdose of morphine into the same patient, the distinction becomes a bit fuzzier in the middle. If this same doctor witholds fluid from the same patient, is that passive or active euthanasia? Is the witholding of futile treatment euthanasia at all? After all, one is not killing the patient, simply not intervening in the dying process to extend life. Can that argument then apply to the witholding of food and fluids? I would say there is a difference between a futile medical intervention and the provision of the necessities of life and that difference is this: If I don’t give an antibiotic to a patient, then it is the infection that kills them; if I don’t give them food then I have killed them.

You might consider this reasoning sophistry, but I think it is a valid distinction. In the first, I am simply not intefering with the dying process. In the second, I am deliberately hastening the end. This would be my way of determining the difference between passive and active euthanasia or, as I prefer to term them – natural death and assisted death.

When we discuss euthanasia is further posts, I will be using the term to denote assisted death only.

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Related posts:

  1. Euthanasia (Part 4) Quality of Life Issues (involuntary euthanasia) Now we move into…
  2. Euthanasia (Part 3) Quality of Life Issues (voluntary euthanasia) In end-of-life euthanasia, there…
  3. Euthanasia (Part 2) End of Life Issues I have blogged about these issues…

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