Strategies to improve delirium recognition in hospitalized older adults

Geriatric Delirium Care: Using Chart Audits to Target Improvement Strategies

Background

Our hospital identified delirium care as a quality improvement target. Baseline characterization of our delirium care and deficits was needed to guide improvement efforts.

Methods

Two inpatient units were selected: 1) A general internal medicine unit with a focus on geriatrics, and 2) a surgical unit. Retrospective chart audits were conducted for all patients over age 50 admitted during a one-month period to compare delirium care with best practice guideline (BPG) recommendations, and to determine the incidence of missed cases of delirium and negative outcomes in patients with delirium. The aim was to gather local data to prioritize improvement efforts and mobilize stakeholders.

Results

186 charts were reviewed: 17 patients had physician-diagnosed delirium, 21 patients had missed delirium, and 148 patients had no delirium. Compliance with delirium BPGs was variable, but generally poor. There was a trend towards missed delirium and physician-diagnosed delirium being associated with greater odds of having above-median length of stay and lower odds of discharge home compared to no delirium diagnosis.

Conclusion

Overall, the chart audits confirmed delirium underrecognition and poor adherence to best practices in delirium management. Granular analysis of this data was used to mobilize stakeholders and prioritize improvement plans.

Delirium diagnosis, screening and management

Purpose of review

Our review focuses on recent developments across many settings regarding the diagnosis, screening and management of delirium, so as to inform these aspects in the context of palliative and supportive care.

Recent findings

Delirium diagnostic criteria have been updated in the long-awaited Diagnostic Statistical Manual of Mental Disorders, fifth edition. Studies suggest that poor recognition of delirium relates to its clinical characteristics, inadequate interprofessional communication and lack of systematic screening. Validation studies are published for cognitive and observational tools to screen for delirium. Formal guidelines for delirium screening and management have been rigorously developed for intensive care, and may serve as a model for other settings. Given that palliative sedation is often required for the management of refractory delirium at the end of life, a version of the Richmond Agitation-Sedation Scale, modified for palliative care, has undergone preliminary validation.

Summary

Although formal systematic delirium screening with brief but sensitive tools is strongly advocated for patients in palliative and supportive care, it requires critical evaluation in terms of clinical outcomes, including patient comfort. Randomized controlled trials are needed to inform the development of guidelines for the management of delirium in this setting.