Quality indicators for palliative care in intensive care units: a systematic review

Establishing appropriate quality assessment indicators for palliative care in intensive care units (ICUs) is vital. This systematic review summarizes the existing quality indicators (QIs) for palliative care in ICUs. It assesses the methodological quality of QI development to pave the way for more valid QIs.

A literature search was conducted using MEDLINE, PsycINFO, CINAHL, Cochrane databases, and the Ichushi-web database for Japanese literature for all studies published until November 2021. The included QIs were drawn from the National Consensus Project for Quality Palliative Care (NCP) and the Donabedian model of quality. Methodological quality was assessed based on the appraisal of indicators through the research and evaluation tool.

Five studies were included, from which 109 indicators were extracted: 78% were process indicators, 5% were outcome indicators, and 17% were structure indicators. The most common indicators addressed the palliative care domain of "ethical and legal aspects of care" (n=38, 30%). Another distinctive feature of some indicators was a focus on supporting ICU staff. Regarding methodological quality, the "scientific evidence" varied (11-89%). Most of the data on QI measures and data sources were obtained from a review of electronic medical records (EMRs). Administrative data also provided a few measurable indicators.

Out of all the QIs covered in this review, most were process indicators, and only a few were outcome indicators. Ethical and legal aspects of care and support for the ICU staff emerged as unique to palliative care. Although the existing QIs can be used for palliative care in ICUs, more specific indicators are urgently needed. Continuous quality assessment and improvement, as well as the addition of more palliative care practices in ICUs, would provide further evidence and help develop valid QIs.