The Use of Palliative Sedation to Treat Existential Suffering: A Scoping Review on Practices, Ethical Considerations, and Guidelines

Continuous Sedation in Palliative Care in Portugal: A Prospective Multicentric Study

Objective: This study aimed to survey the practice of palliative sedation in Portugal, where data on this subject were lacking. Methods: This was a prospective multicentric study that included all patients admitted to each team that agreed to participate. Patients were followed until death, discharge, or after 3 months of follow-up. Results: The study included 8 teams: 4 as palliative care units (PCU), 1 as a hospital palliative care team (HPCT), 2 as home care (HC), and 1 as HPCT and HC. Of the 361 patients enrolled, 52% were male, the median age was 76 years, and 285 (79%) had cancer. Continuous sedation was undergone by 49 (14%) patients: 26 (53%) were male, and the median age was 76. Most patients, 46 (94%), had an oncological diagnosis. Only in a minority of cases, the family, 16 (33%), or the patient, 5 (10%), participated in the decision to sedate. Delirium was the most frequent symptom leading to sedation. The medication most used was midazolam (65%). In the multivariable analysis, only age and the combined score were independently associated with sedation; patients <76 years and those with higher levels of suffering had a higher probability of being sedated. Conclusions: The practice of continuous palliative sedation in Portugal is within the range reported in other studies. One particularly relevant point was the low participation of patients and their families in the decision-making process. Each team must have a deep discussion on this aspect.

Successful Use of Propofol After Failed Palliative Sedation in Patients With Refractory Symptoms

Context: Propofol is a general anesthetic used in multiple clinical scenarios. Despite growing evidence supporting its use in palliative care, propofol is rarely used in palliative sedation. Reluctance toward the adoption of propofol as a sedative agent is often associated with fear of adverse events such as respiratory arrest. Objectives: We aimed to describe efficacy and safety of palliative sedation in refractory sedation with propofol using a protocol based on low, incremental dosing. Methods: A retrospective observational study featuring inpatients receiving sedative treatment with propofol in our palliative care unit in Madrid (Spain) between March 1, 2018 and February 28, 2023, following a newly developed protocol. Results: During the study period, 22 patients underwent sedation with propofol. Propofol was used successfully to control different refractory symptoms, mainly psychoexistential suffering and delirium. All patients had undergone previous failed attempts at sedation with other medications (midazolam or lemovepromazine) and presented risk factors for complicated sedation. All patients achieved satisfactory (profound) levels of sedation measured with the Ramsay Sedation Scale, but total doses varied greatly between patients. Most patients (17, 77%) received combined therapy with propofol and other sedative medications to harness synergies. The median time between start of sedation with propofol and death was 26.0 hours. No cases of apnea or death during induction were recorded. Conclusion: A protocol for palliative sedation with propofol based on low, incremental dosing, with the option of administering an initial induction bolus, shows excellent results regarding adequate levels of sedation, without observing apnea or respiratory depression. Our results promote the use of propofol to achieve palliative sedation in patients with refractory symptoms and risk factors for complicated sedation at the end of life.

Systematic Review of Common Refractory Symptoms in the End-Of-Life Situation and Its Relation With Euthanasia

AIM

To analyse the available evidence regarding refractory symptoms to treatment in patients receiving palliative/terminal healthcare.

DESIGN

A systematic review of various databases between September and December 2020; Pubmed; Cochrane; Scopus and ScienceDirect. Study eligibility criteria: Studies published between 1st January 2015 and 31st of March 2020, in Spanish, English or Catalan conducted in elderly people or terminal patients. The study included systematic reviews, clinical trials and interventions.

RESULTS

The search returned 782 articles, of which 22 articles were finally reviewed. Of the selected articles, 16 were systematic reviews and three were clinical trials. Three refractory symptoms are notable; breathlessness, delirium and existential suffering. There are various therapeutic approaches for the first two symptoms, but palliative sedation seems to be most effective for existential suffering.

CONCLUSIONS

Although palliative care enables controlling these symptoms effectively, and following a multidisciplinary approach, there remains a group of patients for whom euthanasia could save foreseeable suffering that is difficult to manage.

What are the cost and resource implications of voluntary assisted dying and euthanasia?

Objectives Voluntary assisted dying (VAD) legislation has now been passed in all Australian states. Although VAD has been operating in many settings worldwide for a considerable time, the specific costs associated with VAD seem unclear. The aim of this study was therefore to outline the common resource implications associated with VAD. Methods A rapid literature review and grey literature search were undertaken. Results We found a paucity of empirically informed detail regarding the actual costs required to implement VAD. Hence, we tabulated a list of potential costs that could be used for subsequent evaluation and a future research agenda. Conclusions There is a lack of publicly available information related to the costs associated with implementing VAD. Given that this is a significant change in policy and many multidisciplinary practitioners may be directly or indirectly involved in VAD it is important that associated costs are clearly outlined so that appropriate resources can be allocated.

Continuous palliative sedation until death: a qualitative study of palliative care clinicians' experiences

BACKGROUND

The practice of continuous palliative sedation until death is the subject of much medical and ethical debate, which is reflected in the inconsistency that persists in the literature regarding the definition and indications of palliative sedation.

AIM

This study aims to gain a better understanding of palliative care clinicians' experiences with continuous palliative sedation.

DESIGN

We conducted a qualitative study based on focus group discussions.

SETTING/PARTICIPANTS

We conducted six focus groups with a total of 28 palliative care clinicians (i.e., 15 nurses, 12 physicians, and 1 end-of-life doula) from diverse care settings across Canada, where assisted dying has recently been legalized.

RESULTS

An interpretative phenomenological analysis was used to consolidate the data into six key themes: responding to suffering; grappling with uncertainty; adapting care to ensure ongoing quality; grounding clinical practice in ethics; combining medical expertise, relational tact, and reflexivity; and offering an alternative to assisted death.

CONCLUSIONS

Interaction with the patient's family, uncertainty about the patient's prognosis, the concurrent practice of assisted dying, and the treatment of existential suffering influence the quality of sedation and indicate a lack of clear palliative care guidelines. Nevertheless, clinicians exhibit a reflective and adaptive capacity that can facilitate good practice.

Palliative care physicians' decision-making about palliative sedation for existential suffering: A Belgian nationwide qualitative study

OBJECTIVES

This study aims to provide an in-depth understanding of the content and process of decision-making about palliative sedation for existential suffering (PS-ES) as perceived by Belgian palliative care physicians.

METHODS

This Belgian nationwide qualitative study follows a grounded theory approach. We conducted semistructured interviews with 25 palliative care physicians working in 19 Belgian hospital-based palliative care units and 4 stand-alone hospices. We analyzed the data using the Qualitative Analysis Guide of Leuven, and we followed the Consolidated Criteria for Reporting Qualitative Research Guidelines (COREQ).

RESULTS

Analysis of the data identified several criteria that physicians apply in their decision-making about PS-ES, namely, the importance of the patient's demand, PS-ES as a last resort option after all alternatives have been applied, the condition of unbearable suffering combined with other kinds of suffering, and the condition of being in a terminal stage. Regarding the process of decision-making itself, physicians refer to the need for multidisciplinary perspectives supported by an interpretative dialogue with the patient and all other stakeholders. The decision-making process involves a specific temporality and physicians' inner conviction about the need of PS-ES.

SIGNIFICANCE OF RESULTS

Belgian palliative care physicians are not sure about the criteria regarding decision-making in PS-ES. To deal with complex existential suffering in end-of-life situations, they stress the importance of participation by all stakeholders (patient, relatives, palliative care team, other physicians, nurses, social workers, physiotherapists, occupational therapists, chaplains, etc.) in the decision-making process to prevent inadequate decisions being made.

Sedation practices in palliative care services across France: a nationwide point-prevalence analysis

OBJECTIVES

Terminally ill patients may require sedation to relieve refractory suffering. The prevalence and modalities of this practice in palliative care services remain unclear. This study estimated the prevalence of all sedation leading to a deep unconsciousness, whether transitory, with an undetermined duration, or maintained until death, for terminally ill patients referred to a home-based or hospital-based palliative care service.

METHODS

We conducted a national, multicentre, observational, prospective, cross-sectional study. In total, 331 centres participated, including academic/non-academic and public/private institutions. The participating institutions provided hospital-based or home-based palliative care for 5714 terminally ill patients during the study.

RESULTS

In total, 156 patients received sedation (prevalence of 2.7%; 95% CI, 2.3 to 3.2); these patients were equally distributed between 'transitory', 'undetermined duration' and 'maintained until death' sedation types. The prevalence was 0.7% at home and 8.0% in palliative care units. The median age of the patients was 70 years (Q1-Q3: 61-83 years); 51% were women and 78.8% had cancers. Almost all sedation events occurred at a hospital (90.4%), mostly in specialised beds (74.4%). In total, 39.1% of patients were unable to provide consent; only two had written advance directives. A collegial procedure was implemented in 80.4% of sedations intended to be maintained until death. Midazolam was widely used (85.9%), regardless of the sedation type.

CONCLUSIONS

This nationwide study provides insight into sedation practices in palliative care institutions. We found a low prevalence for all practices, with the highest prevalence among most reinforced palliative care providers, and an equal frequency of all practices.

Palliative sedation: ethics in clinical practice guidelines - systematic review

OBJECTIVES

The objective of our study was to determine whether, and to what degree, the ethical dimension was present in clinical practice guidelines (CPGs) on palliative sedation, and to identify the ethical issues with respect to the different forms of this practice. The purpose was purely to be descriptive; our aim was not to make any kind of normative judgements on these ethical issues or to develop our own ethical recommendations.

METHODS

We performed a systematic review of CPGs on the palliative sedation of adults, focusing our analysis on the ethical dimension of these texts and the ethical issues of this practice. The study protocol is registered on PROSPERO.

RESULTS

In total, 36 current CPGs from four continents (and 14 countries) were included in our analysis. Generally, ethics was rarely referred to or absent from the CPGs. Only six texts contained a specific section explicitly related to ethics. Ethical issues were named, conceptualised and presented in heterogeneous, often confusing ways. It was impossible to identify the ethical issues of each form of palliative sedation. Ethics expertise was not involved in the development of most of the CPGs and, if it was, this did not always correlate with the ethical dimension of the document.

CONCLUSIONS

Effective cooperation between palliative care clinicians and ethicists should be encouraged, in order to integrate in particular the crucial ethical issues of continuous deep sedation until death when developing or updating CPGs on palliative sedation.

Palliative sedation: autonomy, suffering, and euthanasia

PURPOSE OF REVIEW

This contemporary and novel review of palliative sedation explores some of the distinctive ethical problems associated with that intervention. It is timely in light of recent reviews of palliative care guidelines on the topic and given the current public debates around the related but distinct practice of euthanasia.

RECENT FINDINGS

The main themes discussed are patient autonomy, the nature of suffering and how to alleviate it, and the relationship between palliative sedation and euthanasia.

SUMMARY

First, palliative sedation poses a significant problem for patient autonomy, both in terms of securing informed consent and in terms of the ongoing effect on individual well-being. Second, as an intervention to alleviate suffering, it is appropriate only in limited cases and counterproductive in others, for example, where an individual values their ongoing psychological or social agency more than the relief of pain or negative experience. Third, people's ethical views about palliative sedation are often coloured by their understanding of the legal and moral status of assisted dying and euthanasia; this is unhelpful and occludes the interesting and urgent ethical questions raised by palliative sedation as a distinct end-of-life intervention.

Could palliative sedation be seen as unnamed euthanasia?: a survey among healthcare professionals in oncology

BACKGROUND

In 2016 a French law created a new right for end-of-life patients: deep and continuous sedation maintained until death, with discontinuation of all treatments sustaining life such as artificial nutrition and hydration. It was totally unprecedented that nutrition and hydration were explicitly defined in France as sustaining life treatments, and remains a specificity of this law. End- of-life practices raise ethical and practical issues, especially in Europe actually. We aimed to know how oncology professionals deal with the law, their opinion and experience and their perception.

METHODS

Online mono-centric survey with closed-ended and open-ended questions in a Cancer Comprehensive Centre was elaborated. It was built during workshops of the ethics committee of the Institute, whose president is an oncologist with a doctoral degree in medical ethics. 58 oncologists and 121 nurses-all professionals of oncological departments -, received it, three times, as mail, with an information letter.

RESULTS

63/ 179 professionals answered the questionnaire (35%). Conducting end-of-life discussions and advanced care planning were reported by 46/63 professionals. In the last three months, 18 doctors and 7 nurses faced a request for a deep and continuous sedation maintained until death, in response to physical or existential refractory suffering. Artificial nutrition and even more hydration were not uniformly considered as treatment. Evaluation of the prognosis, crucial to decide a deep and continuous sedation maintained until death, appears to be very difficult and various, between hours and few weeks. Half of respondents were concerned that this practice could lead to or hide euthanasia practices, whereas for the other half, this new law formalised practices necessary for the quality of palliative care at the end-of-life.

CONCLUSION

Most respondents support the implementation of deep and continuous sedation maintained until death in routine end-of-life care. Nevertheless, difficulty to stop hydration, confusion with euthanasia practices, ethical debates it provokes and the risk of misunderstanding within teams and with families are significant. This is certainly shared by other teams. This could lead to a multi-centric survey and if confirmed might be reported to the legislator.

Expanded terminal sedation in end-of-life care

Despite advances in palliative care, some patients still suffer significantly at the end of life. Terminal Sedation (TS) refers to the use of sedatives in dying patients until the point of death. The following limits are commonly applied: (1) symptoms should be refractory, (2) sedatives should be administered proportionally to symptoms and (3) the patient should be imminently dying. The term 'Expanded TS' (ETS) can be used to describe the use of sedation at the end of life outside one or more of these limits.In this paper, we explore and defend ETS, focusing on jurisdictions where assisted dying is lawful. We argue that ETS is morally permissible: (1) in cases of non-refractory suffering where earlier treatments are likely to fail, (2) where gradual sedation is likely to be ineffective or where unconsciousness is a clinically desirable outcome, (3) where the patient meets all criteria for assisted dying or (4) where the patient has greater than 2 weeks to live, is suffering intolerably, and sedation is considered to be the next best treatment option for their suffering.While remaining two distinct practices, there is scope for some convergence between the criteria for assisted dying and the criteria for ETS. Dying patients who are currently ineligible for TS, or even assisted dying, should not be left to suffer. ETS provides one means to bridge this gap.

Current Status and Future Directions of Research on Palliative Sedation

Patients with terminal cancer experience very severe symptoms during the end of life, and palliative sedation (PS) may be considered if those symptoms are refractory to any other treatment. This brief report presents ethical considerations, practices, and recent concerns on PS. PS is quite different from euthanasia. There is a lack of consensus and standards on protocols, but its notable effects have been reported in hospice care settings. Most studies to date have reported no difference in survival between patients receiving PS and those not, and PS must be conducted proportionally with the lightest level of sedation. The most common indication for PS is delirium, and midazolam is the main sedative used. It is recommended that information regarding PS should be provided to patients and their caregivers repeatedly as early as possible. Existential suffering alone is not an indication for PS, and there is a lack of evidence on bispectral analysis. Additional research on PS is needed in Korea.

Intercountry and intracountry variations in opinions of palliative care specialist physicians in Germany, Italy, Japan and UK about continuous use of sedatives: an international cross-sectional survey

OBJECTIVES

To explore intercountry and intracountry differences in physician opinions about continuous use of sedatives (CUS), and factors associated with their approval of CUS.

SETTINGS

Secondary analysis of a questionnaire study.

PARTICIPANTS

Palliative care physicians in Germany (N=273), Italy (N=198), Japan (N=334) and the UK (N=111).

PRIMARY AND SECONDARY OUTCOME MEASURES

Physician approval for CUS in four situations, intention and treatment goal, how to use sedatives and beliefs about CUS.

RESULTS

There were no significant intercountry or intracountry differences in the degree of agreement with statements that (1) CUS is not necessary as suffering can always be relieved with other measures (mostly disagree); (2) intention of CUS is to alleviate suffering and (3) shortening the dying process is not intended. However, there were significant intercountry differences in agreement with statements that (1) CUS is acceptable for patients with longer survival or psychoexistential suffering; (2) decrease in consciousness is intended and (3) choice of neuroleptics or opioids. Acceptability of CUS for patients with longer survival or psychoexistential suffering and whether decrease in consciousness is intended also showed wide intracountry differences. Also, the proportion of physicians who agreed versus disagreed with the statement that CUS may not alleviate suffering adequately even in unresponsive patients, was approximately equal. Regression analyses revealed that both physician-related and country-related factors were independently associated with physicians' approval of CUS.

CONCLUSION

Variations in use of sedatives is due to both physician- and country-related factors, but palliative care physicians consistently agree on the value of sedatives to aid symptom control. Future research should focus on (1) whether sedatives should be used in patients with longer survival or with primarily psychoexistential suffering, (2) understanding physicians' intentions and treatment goals, (3) efficacy of different drugs and (4) understanding the actual experiences of patients receiving CUS.

Ethics of sedation for existential suffering: palliative medicine physician perceptions - qualitative study

OBJECTIVES

Palliative sedation for existential suffering (PS-ES) is considered a controversial practice to control refractory suffering at the end of life. This study aims to explore Belgian palliative care physicians' perceptions regarding the ethics of PS-ES.

METHODS

This nationwide qualitative study follows a Grounded Theory approach. We conducted semistructured interviews with 25 palliative care physicians working in 23 Belgian hospitals and hospices (Flanders, Brussels, Wallonia). We analysed the data using the Qualitative Analysis Guide Of Leuven and we followed the Consolidated Criteria for Reporting Qualitative Research guidelines.

RESULTS

The data revealed that Belgian palliative care physicians have difficulty characterising ES and distinguishing it from other types of suffering. They express mixed attitudes towards PS-ES and employ a wide range of ethical arguments in favour and against it, which are mainly linked to the four principles of biomedical ethics.

CONCLUSION

Since there is a lack of consensus among Belgian palliative care physicians about PS-ES, further research is needed to clarify their attitudes. A better understanding of physicians' underlying presuppositions can provide more insight into their perceptions of ES and PS-ES and provide further insight for establishing good practices in ES management at the end of life.

Ethical Pain and Terminal Chaperonage

Terminal chaperonage embedded in palliative care deeply resonates with human needs and has undergone significant advances in the past decades. At the same time, it is in jeopardy due to austerity measures in healthcare. Its comprehensive translation in philanthropic end-of-life practice necessitates reflection on underlying ethical issues. This chapter addresses ethical aspects arising in pain and terminal chaperonage and deduces important ethical imperatives in the wake of the palliative mandate. The imperatives affect the deployment of resources necessary for a humane pain and terminal chaperonage, one that is to be comprehensive and flexible in design and implementation at the same time. Furthermore, they are concerned with critical implications for dying clients emerging from the idiosyncratic properties of opioids with respect to their potential to induce mental status alterations. Given that living and dying are profoundly mental by nature, the human mind plays a fundamental role in the command of both. Based on this, this chapter also outlines the essentials of terminal thought plasticity and affect catharsis en route to a mindful, decent death. It identifies and advocates eight most fundamental affective, respectively cognitive fields of the human mind, the "Ensemble of the essential eight iridescent fields of relinquishment", whose adaptable, culturally sensitive facilitation in mental management prior to death may have to be considered the core ethical imperative in terminal chaperonage - in true congruence with philanthropic end-of-life care.