Abstract
Purpose
Palliative sedation (PS) has been defined as the use of sedative medications to relieve intolerable suffering from refractory symptoms by a reduction in patient consciousness. It is sometimes necessary in end-of-life care when patients present refractory symptoms. We investigated PS for refractory symptoms in different hospice casemixes in order to (1) assess clinical decision-making, (2) monitor the practice of PS, and (3) examine the impact of PS on survival.
Methods
This observational longitudinal cohort study was conducted over a period of 9 months on 327 patients consecutively admitted to two 11-bed Italian hospices (A and B) with different casemixes in terms of median patient age (hospice A, 66 years vs. hospice B, 73 years; P = 0.005), mean duration of hospice stay (hospice A, 13.5 days vs. hospice B, 18.3 days; P = 0.005), and death rate (hospice A, 57.2% vs. hospice B, 89.9%; P < 0.0001). PS was monitored using the Richmond Agitation–Sedation Scale (RASS). Sedated patients constituted 22% of the total admissions and 31.9% of deceased patients, which did not prove to be significantly different in the two hospices after adjustment for casemix.
Results
Patient involvement in clinical decision-making about sedation was significantly higher in hospice B (59.3% vs. 24.4%; P = 0.007). Family involvement was 100% in both hospices. The maximum level of sedation (RASS, −5) was necessary in only 58.3% of sedated patients. Average duration of sedation was similar in the two hospices (32.2 h [range, 2.5–253.0]). Overall survival in sedated and nonsedated patients was superimposable, with a trend in favor of sedated patients.
Conclusions
PS represents a highly reproducible clinical intervention with its own indications, assessment methodologies, procedures, and results. It does not have a detrimental effect on survival.
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Acknowledgements
Funding was received from the Italian Ministry of Health as part of the Oncology Research Project “Ricerca Sanitaria Finalizzata ex art. 12 D.Lgs. 502/92, 2006. Programma Integrato Oncologia (area tematica 6)”. The funding source was not involved in the study design; in the collection, analysis, and interpretation of data; in the writing of the report; and in the decision to submit the article for publication. The authors thank Gráinne Tierney for editing the manuscript.
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Appendix
Appendix
Richmond Agitation–Sedation Scale (RASS)
RASS description
+4 Combative, violent, danger to staff
+3 Pulls or removes tube(s) or catheters; aggressive
+2 Frequent nonpurposeful movement, fights ventilator
+1 Anxious, apprehensive, but not aggressive
0 Alert and calm
−1 Awakens to voice (eye opening/contact) >10 s
−2 Light sedation, briefly awakens to voice (eye opening/contact) <10 s
−3 Moderate sedation, movement or eye opening; no eye contact
−4 Deep sedation, no response to voice, but movement or eye opening to physical stimulation
−5 Unarousable, no response to voice or physical stimulation
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Maltoni, M., Miccinesi, G., Morino, P. et al. Prospective observational Italian study on palliative sedation in two hospice settings: differences in casemixes and clinical care. Support Care Cancer 20, 2829–2836 (2012). https://doi.org/10.1007/s00520-012-1407-x
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DOI: https://doi.org/10.1007/s00520-012-1407-x