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The medical definition of death is a major medical and legal issue, and an important issue in declaring a person legally dead. The specific criteria used to pronounce legal death are variable and often depend on certain circumstances in order to pronounce a person legally dead. Controversy is often encountered due to the conflicts between moral and ethical values. The increasing demand for organs for organ transplantation is a major focus of concern due to the increasing technological advances in medical equipment. These advances are causing further questions on the actual definition of death. With so many questions revolving around the issues of legal death, declaring a person legally dead in many cases becomes far more than just a medical concern as it involves ethical concerns as well. == Organ transplants == (詳細はbeating heart cadaver. Consequently, this raises many issues when dealing with patients who are physically incapable of keeping themselves alive. In many cases, medical professionals try to keep a person "alive" for the sole purpose of preserving these organs. By doing this, future removal of these organs will be more effective in organ transplant patients. However, this is seen in many ways as violating the rights of the organ donor. Generally, if a patient is unable to give permission for medical treatment, they are only allowed to receive treatment if it is found that the treatment would be in their best interest. This raises the question of whether keeping a person alive to remove their organs is ethically correct. Another problem encountered in the topic of organ transplantation is the question of when it is permissible to remove organs from a body. In the article ''Education and Debate'' written by Robert Francis, the ethical debate concerning the elective ventilation of an unconscious patient is discussed and by many standards is found to be unlawful. Francis states, "There is a distinction between the rights in respect of a dead body and a living patient." According to the law, it is permitted to remove organs from a body after death assuming that the statutory requirements are complied with. But the ethical concern comes into question whenever a patient is unable to give consent to receive medical treatment. The question of at what point it becomes permissible to withdraw medical treatment without a person's consent is important here. In the case of a patient who is unable to give permission for medical treatment, treatment can be given to the patient if it is in his or her best interests. This permission of medical treatment comes from the legal doctrine of necessity, which states that it is lawful to intervene in the affairs of another person without their consent, granted that the intervention is intended for that person’s benefit. In many cases, however, treatment is unable to cure the patient’s condition, and consequently, according to judicial suggestions, "a doctor has a duty to discontinue the artificial prolongation of life where this ceases to have any therapeutic point".〔Francis, Robert. "An Ethical Debate: A Legal Comment." BMJ. 18 03 1995. 8 Mar 2008 Paragraph 22, of the 1983 Code of Practice, makes it clear that in regard to continuing medical practice on the patient, "() must be for the patient’s benefit." By keeping the patient alive it is not the patient who is benefiting, but rather the person receiving the organ donation. However, medical procedures can be given to an unconscious dying patient only with valid consent. In a case where a child under the age of 16 is found unconscious and dying, valid consent may be given by the parents of the child to authorize medical treatment. But, once again, this treatment may not be granted to the child if it is found that it is not in his or her best interests. In regards to medical procedures being rendered lawful to an unconscious adult, authority cannot be granted by relatives or any other person, but instead is left up to the principle of whether or not it is in their best interest to receive further medical treatment.〔 Overall, there are many issues to consider taking into account in the debate of ethical values clashing with modern science. Where some say let the patient die due to the inability to cure or help them, others plead to keep them living either in desperate hopes of improvement, or in order to preserve their organs for future donation. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Medical definition of death」の詳細全文を読む スポンサード リンク
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