Believing that “A decision by a society to sanction assisted dying in any form should logically go hand‐in‐hand with defining the acceptable method(s)”, the authors reviewed the methods commonly used and contrast these with an analysis of capital punishment in the US. They “expected that, since a common humane aim is to achieve unconsciousness at the point of death, which then occurs rapidly without pain or distress, there might be a single technique being used.”
They were wrong.
They found that with self-administered lethal overdoses “with death resulting slowly from asphyxia due to cardiorespiratory (heartbeat and breathing) depression”, helium self-suffocation and the Dutch lethal injection that resembles US capital punishment, “there appears to be a relatively high incidence of vomiting (up to 10%), prolongation of death (up to 7 days), and re‐awakening from coma (up to 4%), constituting failure of unconsciousness.” (Emphasis added)
The authors take no position on assisted suicide and state their intention to “dispassionately examine whether the methods used to induce unconsciousness at the point of death in assisted dying achieve their objective”. With many of the authors being anesthesiologists themselves, they used the most recent research into “accidental awareness” during anesthesia to try to find an “optimal means” that could better achieve unconsciousness.
ASSISTED SUICIDE AND CAPITAL PUNISHMENT
It was difficult for the authors to find discussion of actual methods to cause death but the Dutch have published guidelines for both “passive participation” where the doctor prescribes a high-dose barbiturate and “active participation where the doctor administers a high dose of IV anesthetic and a neuromuscular (paralyzing) drug.
Notably, the authors found that a lethal injection is recommended by the Dutch when self-ingestion death fails to occur within 2 hours and that this is “an explicit recognition” that self-ingestion can fail.
The Dutch lethal injection resembles (except for the use of potassium to stop the heart) the US method of capital punishment so the authors looked at the US method of lethal injection capital punishment because it is “designed to be ‘humane’ and bears technical similarities” to lethal injection assisted suicide/euthanasia. The US lethal injection protocols also includes technical aspects such as drugs, dosage and monitoring of the patient.
However, as the authors note, “prisoners have been reported to be clearly awake and in distress during some executions”. Two death row prisoners even petitioned the US Supreme Court to consider a requirement for a physician to confirm unconsciousness before the lethal drugs are given. They argued that they “might be awake but paralysed at the point of death, making the method a ‘cruel or inhumane punishment’ which violated the US constitution’s Eighth Amendment”. (Emphasis added) The authors note that this “situation has clear parallels with the problem of ‘accidental awareness during general anesthesia’, where the patient awakens unnoticed and paralysed during surgery, which is known to be a potent cause of distress.” However, the US Supreme Court rejected this argument in 2008, “concluding that the anaesthetic doses used reliably achieved unconsciousness without any need to check that this was the case.” (All emphasis added)
As the authors state, “We now know that the Court was wrong.” (Emphasis added)
DO US ASSISTED SUICIDE LAWS GUARANTEE A PEACEFUL DEATH?
The US assisted suicide laws mandate secrecy in reporting requirements and the little yearly data available about complications is self-reported by the doctors who are not required to be with the person during the process or even afterwards to pronounce death.
However, the authors were able to use data from the Dutch protocols, and other similar methods used elsewhere and state that after taking the lethal overdose:
patients usually lose consciousness within 5 min. However, death takes considerably longer. Although cardiopulmonary collapse occurs within 90 min in two‐thirds of cases, in a third of cases death can take up to 30 h(ours). Other complications include difficulty in swallowing the prescribed dose (in up to 9%) and vomiting thereafter (in up to 10%), both of which prevent suitable dosing, and re‐emergence from coma (in up to 2%).Each of these potentially constitutes a failure to achieve unconsciousness, with its own psychological consequences, and it would seem important explicitly to acknowledge this in suitable consent processes. (Emphasis added)
The authors also note:
that the incidence of ‘failure of unconsciousness’ is approximately 190 times higher when it is intended that the patient is unconscious at the time of death, as when it is intended they later awaken and recover after surgery (when accidental awareness is approximately 1:19,000). (Emphasis added)
CAN TECHNOLOGY ENSURE UNCONSCIOUSNESS?
The authors discuss the limitations of just using EEGs (brain wave tests) and the isolated forearm technique (IFT) where the person can move their single, non-paralysed forearm to signal their awareness.
Instead the authors state:
Recent lessons from anaesthesia lead us to conclude that, if we wish better to ensure unconsciousness at the point of death… then this can be achieved using: (1) continuous drug infusions at very high concentrations; (2) concomitant EEG‐based brain function monitoring, targeted to the very low, burst suppression or isoelectric values; and (3) clinical confirmation of unconsciousness by lack of response to command or to painful/arousing stimuli (and this last could include an IFT). Alternative methods that do not include these elements entail a higher, possibly unacceptable, risk of remaining conscious and so, by definition, are suboptimal. (Emphasis added)
However, the authors acknowledge practical problems with this protocol such as the technical requirements requiring the involvement of trained practitioners like anesthetists.
And the “optimum method” for ensuring unconsciousness is so medicalized that:
Society or individuals might prefer to retain a choice for alternative methods, even if these are suboptimal and carry a greater risk of consciousness at the point of death. If so, then legal frameworks and consent processes should explicitly acknowledge this choice. (Emphasis added)
The assisted suicide legalization movement led by Compassion and Choices portrays assisted suicide as an easy and dignified death, even one that can be a cause of celebration.
Polls about assisted suicide like the latest Gallup poll find 65% say “yes” when asked “When a person has a disease that cannot be cured and is living is severe pain, do you think doctors should or should not be allowed by law to assist the patient to commit suicide if the patient requests it?” even though assisted suicide laws don’t mention pain and state that the person must be terminally ill and expected to die within 6 months.
But how many people, especially legislators, would still say “yes” to legalizing assisted suicide after learning the truth in this article about the so-called “peaceful” assisted suicide?
And how many people would still pursue assisted suicide if they knew they might be conscious and in more distress during the process?
Unfortunately and right now, no assisted suicide law requires that kind of explicit “informed consent”.
The obvious solution is to fight all assisted suicide laws and support all suicidal people.
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