Synopsis
Because they provide potential benefit at great personal and public cost, the intensive care unit (ICU) and the interventions rendered therein have become symbols of both the promise and the limitations of medical technology. At the same time, the ICU has served as an arena in which many of the ethical and legal dilemmas created by that technology have been defined and debated. In this essay, we outline major events in the history of ethics and law in the ICU. We cover 10 areas: 1) the evolution of ICUs, 2) ethical principles, 3) informed consent and the law, 4) medical decision-making, 5) cardiopulmonary resuscitation, 6) withholding and withdrawing life-sustaining therapy, 7) legal cases involving life support, 8) advance directives, 9) prognostication, and 10) futility and the allocation of medical resources. We emphasize that advancement of the ethical principle of respect for patient autonomy in ICUs increasingly is conflicting with physicians’ concern about their own prerogatives and with the just distribution of medical resources.