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Poor Predictors of Treatment Preferences
"Ask a Different Question, Get a Different Answer: Why Living Wills are Poor Guides to Care Preferences at the End of Life" is the title of a study designed to assess how closely responses to questions on a standard living will represent an individual's preferences for end-of-life care in six different scenarios. Researchers surveyed 202 men and women 70 years of age or older and asked them whether they would want life-sustaining treatments to be withheld if they served only to prolong the process of dying, a standard question on a living will. They then asked the study participants to predict their preferences for receiving four specific treatments in six end-of-life scenarios.
The results demonstrated that although there was some association between the living will response and treatment preferences in the six scenarios, these associations were relatively weak. The authors suggest that the hypothetical end-of-life scenario presented in the standard living will is often quite different than the circumstances patients will actually face, which accounts at least in part for the weak link between their responses on the living will and their treatment preferences. The authors propose substituting in the living will scenarios that more closely approximate what people are likely to experience and including estimates of how effective specific treatment options would be in sustaining life to help guide advance care decisions.
"It is so important to move the field of advance care planning forward," says Charles F. von Gunten, Editor-in-Chief of Journal of Palliative Medicine, and Provost, Institute for Palliative Medicine at San Diego Hospice. Further, he says, "This should form the basis for innovative new approaches for help in decision-making."
MEDICA.de; Source: Mary Ann Liebert, Inc./Genetic Engineering News