Continuous Deep Sedation: A Proposal for Performing More Rigorous Empirical Research.

Area of Science:

• Palliative Care Medicine
• Medical Ethics

Background:

• Continuous deep sedation until death (CDS) is a debated palliative sedation therapy.
• Inconsistent intervention procedures and patient background descriptions hinder comparative research.
• Lack of standardized methodology impedes understanding and replication of CDS studies.

Purpose of the Study:

• To propose a conceptual framework for empirical studies on CDS.
• To establish standardized definitions and methodologies for CDS research.
• To facilitate international comparison of CDS outcomes.

Main Methods:

• Defining CDS through specific intervention protocols.
• Proposing two distinct CDS intervention protocols: gradual CDS and rapid CDS.
• Recommending the use of validated prognostic tools (e.g., Prognosis in Palliative Care Study predictor model-A) for patient characterization.

Main Results:

• A provisional definition for two types of CDS (gradual and rapid) is proposed.
• A framework for standardizing CDS intervention protocols is presented.
• A method for characterizing patient backgrounds using validated tools is recommended.

Conclusions:

• Standardized definitions and validated patient background descriptions are crucial for CDS research.
• The proposed framework enhances the comparability and interpretability of global CDS studies.
• Further empirical research utilizing this framework is urgently needed to advance the field.