Prevalence, Impact, and Treatment of Death Rattle

Context: Death rattle, or respiratory tract secretion in the dying patient, is a common and potentially distressing symptom in dying patients. Health care professionals often struggle with this symptom because of the uncertainty about management. Objectives: To give an overview of the current evidence on the prevalence of death rattle in dying patients, its impact on patients, relatives, and professional caregivers, and the effectiveness of interventions. Methods: We systematically searched the databases PubMed, EMBASE, CINAHL, PsychINFO, and Web of Science. English-language articles containing original data on the prevalence or impact of death rattle or on the effects of interventions were included. Results: We identified 39 articles, of which 29 reported on the prevalence of death rattle, eight on its impact, and 11 on the effectiveness of interventions. There is a wide variation in reported prevalence rates (12%-92%; weighted mean, 35%). Death rattle leads to distress in both relatives and professional caregivers, but its impact on patients is unclear. Different medication regimens have been studied, that is, scopolamine, glycopyrronium, hyoscine butylbromide, atropine, and/or octreotide. Only one study used a placebo group. There is no evidence that the use of any antimuscarinic drug is superior to no treatment. Conclusion: Death rattle is a rather common symptom in dying patients, but it is doubtful if patients suffer from this symptom. Current literature does not support the standard use of antimuscarinic drugs in the treatment of death rattle

Hydration and symptoms in the last days of life

Objectives: At the end of life oral fluid intake is often reduced. Consensus about the most appropriate management for terminally ill patients with limited oral fluid intake is lacking. The objective of this study is to investigate to what extent the amount of fluid intake, preceding and during the dying phase, is related to the occurrence of death rattle and terminal restlessness. Methods: A multicentre prospective observational study was performed. Data on the occurrence of death rattle and terminal restlessness, fluid intake and opioid use of patients expected to die within a few days or hours were collected. Results: 371 patients were included. Death rattle was reported at least once in 40% (n=149) of patients during the dying phase. Death rattle occurrence was not associated with the amount of fluid intake during the days before dying. Terminal restlessness was reported in 26% of patients (n=96). Terminal restlessness was not associated with a lower amount of fluid intake during the days before dying. Terminal restlessness during the last 24 hours of life was associated with a higher amount of fluid (ie, >250 mL/day) during 48-25 hours before death. Conclusions: Caution with fluid intake to prevent development of death rattle does not seem to be necessary. Our study suggests that a higher amount of fluid intake during 48-25 hours before death may be associated with the occurrence of terminal restlessness during the last 24 hours of life. These results suggest that actively providing dying patients with artificial fluid may not be beneficial

Understanding relatives' experience of death rattle

BACKGROUND: Death rattle is a frequently occurring symptom in the last phase of life. The experience of death rattle of relatives has been found to vary. It is unclear if treatment with medication is useful. The most fitting solution for this symptom is still under debate. AIM: This study aims to better understand the experience of relatives of their loved ones' death rattle. DESIGN: A qualitative interview study with a phenomenological approach was performed. Data were collected through semi-structured interviews which were audio recorded, transcribed and analyzed using qualitative content analysis. PARTICIPANTS: Nineteen family members of 15 patients were interviewed. RESULTS: Most relatives had experienced death rattle as a distressing symptom. Concerns about how long the rattling would last resulted in more distress. Experience of death rattle was less fierce when other symptoms such as pain or dyspnea prevailed. Hearing the sound of death rattle sometimes reminded relatives of previously witnessed dying trajectories, which seemed to increase their current level of distress. The experience of death rattle is not always influenced by the amount and quality of information given about the symptom. CONCLUSION: Death rattle is a stressful symptom and the experience of relatives is influenced by more factors than the sound itself. Communication and information alone seem inefficient to address relatives' distress. The best approach for dealing with this symptom is unclear. Further research needs to show if prophylactically given drugs may be helpful in its prevention