An Observational Study on a Protocol for Withdrawal of Life-Sustaining Measures on Two Non-Academic Intensive Care Units in The Netherlands: Few Signs of Distress, No Suffering?

Abstract

ContextBecause anticipation of death is common within the intensive care unit, attention must be paid to the prevention of distressing signs and symptoms, enabling the patient to die peacefully. In the relevant studies on this subject, there has been a lack of focus on measuring determinants of comfort in this population. ObjectivesTo evaluate whether dying without distressing signs after the withdrawal of life-sustaining measures is possible using a newly introduced protocol and to analyze the potential influence of opioids and sedatives on time till death. MethodsThis was a prospective observational study, in two nonacademic Dutch intensive care units after the introduction of a national protocol for end-of-life care. The study lasted two years and included adult patients in whom mechanical ventilation and/or vasoactive medication was withdrawn. Exclusion criteria included all other causes of death. ResultsDuring the study period, 450 patients died; of these, 305 patients were eligible, and 241 were included. Ninety percent of patients were well sedated before and after withdrawal. Severe terminal restlessness, death rattle, or stridor was seen in less than 6%. Dosages of opioids and sedatives increased significantly after withdrawal, but did not contribute to a shorter time till death according the regression analysis. ConclusionThe end-of-life protocol seems effective in realizing adequate patient comfort. Most patients in whom life-sustaining measures are withdrawn are well sedated and show few signs of distress. Dosages of opioids and sedatives increase significantly during treatment withdrawal but do not contribute to time until death. Dying with a minimum of distressing signs is thus practically possible and ethically feasible.