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The Need for Informed Consent: Lessons from the Ancient Greeks
Published online by Cambridge University Press: 14 February 2006
Extract
Some time ago, Ian Kennedy asked whether consent was
the great bulwark of “patient's rights”? Is it a necessary nuisance granted as a concession to modish thinking? Is it simply a figment of some lawyer's (or—awful word—medical ethicist's) imagination which practitioners know is meaningless in practice? Is it just part of the rhetoric of “patient power”, sent to try doctors' patience and challenge their authority?I thank Professor Matti Häyry for his extremely perceptive and helpful comments, which have added much to this paper.
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- SPECIAL SECTION: THE POWER OF CHOICE: AUTONOMY, INFORMED CONSENT, AND THE RIGHT TO REFUSE
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- © 2006 Cambridge University Press
Some time ago, Ian Kennedy asked whether consent was
the great bulwark of “patient's rights”? Is it a necessary nuisance granted as a concession to modish thinking? Is it simply a figment of some lawyer's (or—awful word—medical ethicist's) imagination which practitioners know is meaningless in practice? Is it just part of the rhetoric of “patient power”, sent to try doctors' patience and challenge their authority?1
Kennedy I. Consent to treatment: The capable person. In: Dyer C, ed. Doctors, Patients and the Law. Oxford: Blackwell; 1992:44–72.
According to Jackie Cassell and Alisdair Young, for example, it is such a bulwark; indeed, they consider it to be the “ethical touchstone of medical research” that has emerged in the last two decades.2
Cassell J, Young A. Why we should not seek individual informed consent for participation in health service research. Journal of Medical Ethics 2002;28:313. The full text of this article can be found at: http://jme.bmjjournals.com/cgi/content/full/28/5/313–17.
See, for example, O'Neill O. Some limits of informed consent. Journal of Medical Ethics 2003;29:4–7; Tobias J. B.M.J.'s present policy (sometimes approving research in which patients have not given fully informed consent) is wholly correct. British Medical Journal 1997;314:1111–13; Bhagwanjee S, Muckart D, Jeena PM, Moodley P. Commentary: Why we did not seek informed consent before testing patients for HIV. British Medical Journal 1997;314:1082. Indeed, in 1998 the British Medical Journal hosted a debate on the issue with various authors giving their views; Informed Consent In Medical Research. British Medical Journal 1998;316:1000–05.
As Cassell and Young highlighted, the Nuremberg Code is generally considered to be the birthplace of the principle of informed consent. The very first article of the Code states that
1. The voluntary consent of the human subject is absolutely essential. This means that the person involved should have legal capacity to give consent; should be so situated as to be able to exercise free power of choice, without the intervention of any element of force, fraud, deceit, duress, over-reaching, or other ulterior form of constraint or coercion; and should have sufficient knowledge and comprehension of the elements of the subject matter involved as to enable him to make an understanding and enlightened decision.4
Trials of War Criminals before the Nuremberg Military Tribunals under Control Council Law No. 10. Nuremberg, October 1946–April 1949. Washington, DC: U.S. G.P.O, 1949–1953.
As can be seen from the extract above, the duty rests with the researchers to inform the volunteer of not only the risks inherent in the research, but also the “nature, duration and purpose of the experiment.”5
See note 4, Trials of War Criminals 1949–1953.
22. [E]ach potential subject must be adequately informed of the aims, methods, sources of funding, any possible conflicts of interest, institutional affiliations of the researcher, the anticipated benefits and potential risks of the study and the discomfort it may entail.6
World Medical Association. Declaration of Helsinki, adopted by the WMA's General Assembly in Helsinki in 1964, then amended in 1975, 1983, 1989, 1996 and finally in October 2000, the full text can be found on the WMA's Web site at: http://www.wma.net.
Again, it is made clear in the guidance that there is more to consent than just the disclosure of risks. Indeed, paragraph 8 of the Declaration of Helsinki makes this point explicitly when it states that, “Medical research is subject to ethical standards that promote respect for all human beings and protect their health and rights.”7
See note 6, World Medical Association 1964.
Nicosia F, Huener J, eds. Medicine and Medical Ethics in Nazi Germany: Origins, Practices, Legacies. New York: Berghahn Books; 2002; Annas G. Nazi Doctors and the Nuremberg Code: Human Rights and Human Experimentation. New York: Oxford University Press; 1992.
See, generally, Caplan A, ed. When Medicine Went Mad: Bioethics and the Holocaust. Totowa, NJ: Humana Press; 1992.
Dignity and Rights
As David Seedhouse and Ann Gallagher have noted, “dignity” is a word often utilized in declarations and codes of practice, but never actually defined.10
Seedhouse D, Gallagher A. Undignifying institutions. Journal of Medical Ethics 2002;28:368, available at: http://jme.bmjjournals.com/cgi/content/full/28/6/368–72.
For an excellent analysis of the different origins of dignity, and the consequences of this, see Häyry M. Another look at dignity. Cambridge Quarterly of Healthcare Ethics 2004;13:7–14. The definition of dignity used in this article most closely conforms to the Kantian model described in pp. 8–9, but is a personal one.
Yet, to rely on this “right,” it is first necessary to justify that reliance by demonstrating the existence of the right in question. Matti Häyry and Tuija Takala, for example, argue that in the context of genetic privacy and confidentiality, a rights-based analysis leads us to conclude that there are times when disclosure of genetic information can be justified.12
Häyry M, Takala T. Genetic information, rights, and autonomy. Theoretical Medicine 2001;22:403–14.
See note 12, Häyry, Takala 2001:406–7.
Again, though, such an approach may be resisted. The focus of this questioning of the “right” to privacy and confidentiality is consequentialist in nature. In other words, the justification for the abrogation from such rights is dependant on the fact that to safeguard the privacy and confidentiality of one person will be of detriment to the rights of another (or others) or even to the community as a whole. Alternatively, the benefit to others justifies the (lesser) detriment suffered by the individual. In this way, it becomes “less bad” to remove one person's rights, as it confers greater benefits on others overall. Even so, this approach relies on three factors: First, it must be demonstrated that the “harm” incurred by the individual is indeed outweighed by the benefits accrued. Second, it must also be shown that the calculations involved in this equation are pure of intention. Finally, but perhaps most importantly, we must also accept that it is justifiable to “trade” the rights of one person in order to benefit others—a moral judgment that is in no way automatically acceptable. If any of these conditions are not met, then there is no justification for the removal of the rights of the individual, and, as such, this would demonstrate a lack of respect being shown to that person. Again, this leads inevitably to a loss of dignity.
It is the first and third of these factors that can be most easily debunked. As Häyry and Takala note, medical treatment has, for a long time, ceased to be its own justification. Rather, the consent of the patient is generally required before any treatment is allowed to proceed.14
See note 12, Häyry, Takala 2001:407.
The general tenet of some of the recent arguments seeking to limit the principle of informed consent is that it places too many restrictions on medical practitioners, who are only trying to do their best for their patients or the society in which we live. As correspondence to the British Medical Journal in 1998 demonstrates, this can range from compromising the methodological purity of research to a wish not to alarm elderly patients.15
See, in particular, Tobias JS. Changing the BMJ's position on informed consent would be counterproductive. British Medical Journal 1998;316:1001 for a brief précis of the views expressed within the debate on the issue.
The Lessons from the Ancient Greeks
A glance at the work of Hippocrates and Plato demonstrates a contrast in views regarding the medical profession and its ethics, but also can be seen as a metaphor of the current debate. In some ways, the Hippocratic Oath is clearly outdated. As Kenneth Vaux, for example, has noted, the increased technologicalization of medical practice in the last century has lessened its relevance.16
See Vaux K. Biomedical Ethics—Morality for the New Medicine. New York: Harper and Row; 1968.
Jones WHS. Hippocrates, vol. II. Cambridge, Mass.: Harvard University Press; 1923:297.
Nevertheless, what survives of the Oath is not any specific principle but its overall tone. The primary duty of the medical practitioner is to “use treatment to help the sick according to my ability and judgement, but never with a view to injury and wrongdoing.”18
Gelfand M. The Philosophy and Ethics of Medicine. Edinburgh: E&S Livingstone Ltd.; 1968:107.
There is in the Hippocratic corpus little explicit reference to the responsibilities of medicine as a corporate entity with responsibility for its members and duties to the greater human community. The ethic of the profession as a whole is assured largely by the moral behavior of its individual members. There is no explicit delineation of the corporate responsibility of physicians for one another's ethical behavior. On the whole, the need for maintaining competence is indirectly stated.19
Pellegrino E. Toward an expanded medical ethics: The Hippocratic ethic revisited. In: Veatch R, ed. Cross Cultural Perspectives in Medical Ethics. Boston: Jones and Bartlett Publishers; 1989: 27. Emphasis added.
Here, then, is where the Hippocratic Oath can be seen to be a model that is worth following. It can be forgiven some paternalism (particularly as it was prevalent at the time), and its lack of reference to technology (which did not exist at the time) can be forgotten as it idealizes the notion of a doctor acting for the good of her patient. Vaux highlights this fact when he states that “the genius of the oath is that it anchors responsibility in the moral power and ability of man and does not concede to any transcendent moral law or moral arbiter.”20
See note 16, Vaux 1968:4.
That such infiltration is inevitable is the central lesson that we can learn from the work of Plato. In particular, Thomas Szasz's critique of Plato's work illustrates the points well.21
Szasz T. The Theology of Medicine. Oxford: Oxford University Press; 1979.
[The art of medicine] does not study its own interests, but the needs of the body, just as a groom shows his skill by caring for horses, not for the art of grooming. And so every art seeks, not its own advantage—for it has no deficiencies—but the interest of the subject on which it is exercised.22
The Republic of Plato, Cornford FM, trans. New York: Oxford University Press; 1945:23.
It was at this point that Szasz demonstrated how the Platonic ideals highlight the fundamental deficiencies in the Hippocratic utopia. The most telling of these is the way in which a necessary precondition of such benevolent altruism is that the doctor must be in control of the patient's body, for the good of her art:
[E]very art has authority and superior power over its subject…. So the physician, as such, studies only the patient's interest, not his own. For as we agreed, the business of the physician, in the strict sense, is not to make money for himself, but to exercise his power over the patient's body…. All that he says and does will be said and done with a view to what is good and proper for the subject for whom he practices his art.23
See note 22, The Republic of Plato 1945:23–4.
Of course, this means that, at best, the doctor owes a dual allegiance: to the patient and to the art of medicine. However, as Szasz demonstrated, Plato then went further, arguing that the medical practitioner also owes an allegiance to the state:
Surely, there could be no worse hindrance than this excessive care of the body…. Treatment … would be wasted on a man who could not live in his ordinary round of duties and was consequently useless to himself and society.24
See note 21, Szasz 1979:9. Emphasis added.
The conversation notes that medical treatment should be provided not for the sake of the patient, but the society that the patient belongs to—going so far as to discourage treating those who may “beget children who are likely to be as sickly as himself.”25
See note 21, Szasz 1979:9.
See note 21, Szasz 1979:12.
See note 21, Szasz 1979:13.
See note 21, Szasz 1979:13.
There are two lessons that we can, and must, derive from Plato. First, the Hippocratic ideal of the doctor of “good conscience” is naïve in the extreme. Second, physicians are humans, and when they have a conflict of interest, it cannot be taken for granted that the physician will act with the best interests of the patient at heart. History has proved Plato to be correct. The atrocities of the Nazis, sadly, were not the only example of this. Indeed, since the end of the Second World War we have witnessed too many other examples for it to be necessary to list them.29
The most famous being the Tuskegee Syphilis Study and the Swedish Sterilisation Programme. Both lasted into the 1970s. See Jones JH. Bad Blood: The Tuskegee Syphilis Experiment. New York: Free Press; 1993; Armstrong C. Thousands of women sterilised in Sweden without consent. British Medical Journal 1997;315:563, respectively.
Those who are now advocating removing the need for informed consent in some cases need to pause for thought and realise exactly what they are arguing for. First, Cassell and Young hold the opinion that “in the context of a socialized health care system such as the NHS, informed consent should not always outweigh other central values in the decision making processes of ethical committees.”30
See note 2, Cassell, Young 2002.
Second, the argument against the need for universal informed consent relies on the idea that no harm will be done to the subject. Cassell and Young, for example, were quick to limit their argument for HSR rather than clinical research. They stated that HSR is mainly concerned with organizational matters, and that in the majority of cases all that is required from the patient is data about them. As a justification for this, they adopted the view of Mary Warnock, who opined that it is of more use to demand that the research process does not exploit the subject, rather than using the blunter instrument that is the requirement for consent.31
Warnock M. Informed consent—A publisher's duty. In: Doyal L, Tobias JS, eds. Informed Consent in Medical Research. London: BMJ Books; 2001. In Cassell and Young, see note 2.
This proviso cannot exist in conjunction with the notion that all is needed is a “lack of harm” to the research subject, as it necessitates a definition of harm that is so narrow as to be counterproductive. “Harm,” as defined by Cassell and Young by implication (as they never actually mention the word), is conceived as being limited to an invasion of the subject's physical integrity. They argued that the Declaration of Helsinki “presupposes that ethics committees are considering traditional medical research—the effects of individual level interventions on individual patients.”32
See note 2, Cassell, Young 2002.
[Helsinki] divides research into two kinds—therapeutic and non-therapeutic. This widely accepted distinction fits a picture according to which research is carried out on individuals, and in which the brave, the altruistic or the foolhardy who take part in … experiments for no possible benefit (non-therapeutic research) deserve special protection.33
See note 2, Cassell, Young 2002.
This leads them to distinguish between HSR and “traditional” research, questioning “whether organisational research is really research at all.”34
See note 2, Cassell, Young 2002.
See Z v. Finland (1997) 25 EHRR 371 and MS v. Sweden (1997) 28 EHRR 313.
It is the last of these in particular that the opponents of the blanket need for informed consent seize on. Cassell and Young, for example, argued that we all have “membership” of the National Health Service (NHS), and that therefore our “NHS rights as individuals are subject to the need to protect all members.”36
See note 2, Cassell, Young 2002.
The conceit implied by Cassell and Young is that, because there is no physical “harm” to the patient, there is therefore no consequent loss of dignity. Moreover, they then put forward a utilitarian argument to advance the view that it is morally permissible to use the information to benefit the “membership” that is the NHS. As they noted, “[O]ur NHS rights as individuals are subject to the need to protect the rights of all members.“37
See note 2, Cassell, Young 2002.
Rather, this author argues instead that the “harm” occurs precisely because there is a loss of dignity. Indeed, any approach that limits the rights of the individual for the benefit of a collective ceases to respect that person. By denying the patient an informed choice regarding the use of their information, the position advocated by Cassell and Young treats them as “members” of the NHS collective rather than individuals who happen to belong to it. Furthermore, it is not clear that the patient gains any benefit from the use of their information. Although there are tangible gains for the collective—in the form of better practices leading to more effective future treatments—it is not certain that the individual will need (or want) that treatment in the future. Any benefit gained by that individual is thus tangential at best, in the form of potentially increased resources available for other treatments that the patient may potentially need in the future. In this context, the lack of direct benefit to the patient provides no counterweight to the loss of dignity incurred. Once we look at the situation in this way, the view that no harm occurs becomes effectively untenable.
Conclusion
It might be argued that the medical profession has learned its lessons from the past, and that it should not be forever punished for the sins of doctors who are, for the most part, already dead. Nevertheless, if Plato can teach us one thing, it is that the Hippocratic ideal of the purity of the medical conscience can never be seen as anything but unachievable. There are many examples, even today, of doctors who act without the best interests of their patients at heart. As Pellegrino has noted, history teaches us lessons that we would be very unwise to forget:
Clearly, the lessons of the Nuremburg Trials have not been learnt … The integrity of Medical Ethics is important not because it protects the physicians' prerogatives but because it is a bulwark against the use of medical knowledge for purposes other than for the good of the sick…. If medicine becomes … the handmaiden of economics, politics or any other force other than that which promotes the good of the patient, it loses its soul and becomes an instrument that justifies oppression and the violation of human rights.38
Pellegrino E. Nazi doctors and Nuremberg: Some moral lessons revisited. Annals of Internal Medicine 1997;127(4):307–08. The full text can be found at: http://www.acponline.org/journals/annals/15aug97/naziedit.htm.
It is sometimes best not to forget, and for this reason any attempt to limit the requirement for informed consent should be strongly resisted. The consequences of inaction were foreseen by the ancient Greeks, and proved beyond doubt, tragically, in the 20th century. Although this article does not in any way seek to compare HSR to the atrocities of the Holocaust, it does argue that the principle is effectively the same in both scenarios. The principle of informed consent was developed for a reason, and in order to discard it there has to be some sort of justification. The fact that it becomes an obstacle or inconvenience when applied to HSR is not, in itself, such a justification. Something else needs to be brought into the equation. Cassell and Young sought to provide this when they argued that it lies in the absence of harm to the patient. As this article has demonstrated, however, this is not the case, and, furthermore, it cannot be shown to confer any tangible benefits on the patient as an individual. The worst possible reason to dispense with an important principle in medical ethics is that it is too restrictive to medical practitioners. Ethics exist to guide doctors and protect patients, and informed consent is at the heart of this. The dignity of patients can only be assured if this fact is remembered, and the principle adhered to.
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