But there is evidence that some clinicians may already be using continuous deep sedation (CDS), as a form of "slow euthanasia". Research suggests use of CDS in Britain is particularly high - accounting for about one in six of all deaths.
Continuous deep sedation (CDS) is sometimes used to treat refractory symptoms in terminally ill patients. The aim of this paper was to estimate the frequency and characteristics of CDS in six European countries: Belgium, Denmark, Italy, The Netherlands, Sweden, and Switzerland. Of all deaths, CDS was applied in 2.5% in Denmark and up to 8.5% in Italy. Of all patients receiving CDS, 35% (Italy) and up to 64% (Denmark and The Netherlands) did not receive artificial nutrition or hydration. Patients who received CDS were more often male, younger than 80 years old, more likely to have had cancer, and died more often in a hospital compared to nonsudden deaths without CDS. The high variability of frequency and characteristics of CDS in the studied European countries points out the importance of medical education and scientific debate on this issue.
In Belgium, where euthanasia was legalized in 2002, we conducted a follow-up study in 2007 to two largescale nationwide surveys on medical end-of-life practices that had been conducted in 1998 and 2001. This follow-up study enabled us to investigate differences in the frequency and characteristics of these practices before and after the enactment of the law.
This study investigates the use of CDS in the United Kingdom. In total, 18.7% (17.3–20.1) of the doctors attending a dying patient reported the use of CDS. CDS was more likely when patients were younger or were dying of cancer. Specialists in care of the elderly were least likely to report the use of CDS; doctors in other hospital specialties were most likely to report its use. CDS was associated with a higher rate of requests from patients or relatives for a hastened death and with a greater incidence of other end-of-life decisions containing some intent to end life by the doctor. Doctors supporting legalization of euthanasia or physician-assisted suicide, or who were nonreligious, were more likely to report using CDS. There was palliative care team involvement in half of all CDS cases, and prescription of opioids alone for sedation occurred in one-fifth of the cases but was not reported by specialists in palliative care.