Hospital-initiated palliative care interventions for adults with frailty: findings from a systematic review and narrative synthesis.

Background: Adults with frailty have palliative care needs [1] but have disproportionately less access to palliative care services [2]. Frailty affects ~4000 patients admitted to hospital per day in the UK [3], making the hospital admission a unique opportunity to assess palliative care needs and deliver interventions.

Objectives: Synthesise the evidence regarding hospital palliative care (HPC) for patients with frailty. Narratively analyse the evidence regarding methods used to identify palliative care needs; types of palliative care interventions studied; and whether HPC improves outcomes.

Methods: Systematic literature review and narrative synthesis of experimental, observational and systematic review articles investigating palliative care interventions for hospitalised adults aged ≥65 years with frailty. Electronic search of five databases from database inception to 30 January 2023. Included studies analysed using narrative synthesis according to Popay et al [4].

Results: 15 465 titles retrieved, 12 included. Three studies detailed how they identified palliative care needs; all three used prognostication e.g. the 'surprise question'. Most papers (10/12) investigated specialist palliative care interventions. These interventions addressed a wider range of care needs than non-specialist interventions. Evidence suggested an improvement in some symptom burden and healthcare utilisation outcomes following HPC.

Conclusion: Prognostication was the main method of identifying palliative care needs, rather than individuals' specific needs. Specialist palliative care interventions were more holistic, indicating that non-specialist palliative care approaches may benefit from specialist team input. Despite suggestions of improvement in some outcomes with palliative care, heterogenous evidence prevented establishment of conclusive effects.