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1Division of Pulmonary and Critical Care Medicine, University of California, San Francisco.
Abstract:
The dominant approach to futility in medicine assumes that the probability and utility of medical interventions may be separated to provide a quantitative (probabilistic) definition of futility. This assumption is not only misleading but also responsible for much of the confusion that futility has engendered in medical discussions. The divorce of utility from probability is the opposite of how clinicians reason: an improbable intervention looks different if it is cheap, easy, and without morbidity than if it is technology intensive, expensive, and likely to involve great pain and suffering. Futility is how physicians describe the sense of being compelled to proceed with resource intensive care for marginal benefits. Outside the intensive care unit, physicians weigh and sometimes reject patient requests without the need to invoke futility. By examining the ways that physicians can legitimately evaluate patient requests, we can show that appeals to futility are both unnecessary and counterproductive. In cases where such appeals are unavoidable, the outpatient model suggests a process to adjudicate the competing claims of patient autonomy and physician responsibility.
Insights
Medical futility definitions are misleading by separating probability and utility. Clinicians integrate these factors, making futility appeals unnecessary and counterproductive for patient care decisions.
Area of Science:
- Medical Ethics
- Clinical Decision-Making
Background:
- The prevailing definition of medical futility incorrectly separates the probability and utility of interventions.
- This separation contributes to confusion in medical discourse surrounding futility.
- Clinicians inherently consider both probability and utility when assessing interventions.
Purpose of the Study:
- To critique the dominant quantitative definition of medical futility.
- To demonstrate that appeals to futility are unnecessary and counterproductive in clinical practice.
- To propose an alternative model for evaluating patient requests.
Main Methods:
- Analysis of the dominant approach to medical futility.
- Examination of how clinicians reason about medical interventions by integrating probability and utility.
- Review of physician practices in evaluating patient requests outside intensive care settings.
Main Results:
- The assumption that probability and utility can be separated for defining futility is misleading.
- Physicians naturally weigh the costs, benefits, and risks of interventions, which is contrary to a purely probabilistic approach.
- Appeals to futility are often unnecessary and can hinder effective patient care discussions.
Conclusions:
- Revising the definition of futility by reintegrating probability and utility is essential.
- Alternative models for evaluating patient requests, such as those used in outpatient settings, can resolve conflicts between patient autonomy and physician responsibility.
- The concept of futility should be re-evaluated to better align with clinical reasoning and ethical practice.
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