Assessment scales for delirium

The Validity and Applicability of the Revised Delirium Rating Scale (DRS-R98) for Delirium Severity Assessment in a Critical Care Setting

BACKGROUND

Delirium is a neuropsychiatric syndrome common in critical illness. Worsening delirium severity is associated with poorer clinical outcomes, yet its assessment remains under-reported with most severity assessment tools not validated for critical care. The DRS-R98 is a widely applied and validated tool. The aim of this project is to report the validation and utility of the DRS-R98 in critical illness.

METHODS

This prospective, cohort study was conducted in adults with delirium admitted to a critical care unit and predicted to stay for ≥ 24 h. We excluded patients with severe neurological or communication barriers that would have interfered with the DRS-R98 assessment. Patients were screened using a delirium detection algorithm and the Confusion Assessment Method for the Intensive Care Unit. Eligible patient informations were collected and reported to qualified assessor/s before visiting clinical areas, confirming delirium presence and undertaking DRS- R98 assessments. To assess the tool's construct validity, an intensivist completed the Clinical Global Impression-Scale (CGI-S). To calculate the inter-rater reliability (IRR) a subset of patients were simultaneously evaluated by two assessors.

RESULTS

We assessed 22 patients, 73% were male, with a median age of 65 years (IQR14). The DRS -R98 mean (SD) severity score was 24 (+/-7.7), total scale was 29 (+/18.0), and CGI-S 3.5 (+/11.5). Assessment duration was 90 min (+/-55) and 15 min (+/-5) for record data extraction and clinical assessment respectively. The CGI-S significantly correlated with DRS-R98 severity (r = 0.626) and total (r = 0.628) scales. The DRS-R98 Cronbach's alpha was 0.896 for severity scale and 0.886 for total scale. The inter-rater reliability (IRR) was assessed in six patients and reported an inter-correlation coefficient of 0.505 (p = 0.124) and 0.565 (p = 0.93) for the severity and total scale respectively.

CONCLUSIONS

In critical care, the Delirium Rating Scale R98 had good construct validity, excellent internal consistency, and moderate inter-rater reliability.

Recipe for primary prevention of delirium in hospitalized older patients

Delirium is an acute fluctuating syndrome characterized by a change in consciousness, perception, orientation, cognition, sleep-wake rhythm, psychomotor skills, and the mood and feelings of a patient. Delirium and delirium prevention remain a challenge for healthcare professionals, especially nurses who form the basis of patient care. It also causes distress for patients, their caregivers and healthcare professionals. However, delirium is preventable in 30-40% of cases. The aim of this article is to summarize the delirium risk models, delirium screening tools, and (non-pharmacological) delirium prevention strategies. A literature search of review articles supplemented by original articles published in PubMed, Cinahl, and Cochrane between 1 January 2000 and 31 December 2020 was carried out. Among the older patients, delirium is a common condition with major consequences in terms of mortality and morbidity, but prevention is possible. Despite the fact that delirium risk models, delirium screening scales and non-pharmacological prevention are available for the development of a hospital delirium prevention programme, such a programme is still not commonly used on a daily basis.

Delirium in Burn Patients: Developing a Mobile Application for Assessment and Diagnosis

Delirium is a neuropsychiatric syndrome which is highly prevalent among hospitalized burn patients. Among screening tools, the Intensive Care Delirium Screening Checklist (ICDSC) is a reliable tool. This study aimed to develop a mobile-based application for assessing and diagnosing delirium in burn patients by using ICDSC. This research consisted of three phases. Initially, a questionnaire was designed and users' requirements were identified. The participants were 10 psychiatrists and 51 nurses. Then, a mobile application was designed based on the results derived from the first phase of the study and the usability of the application was evaluated by using a standard questionnaire. Finally, the rate of agreement between the nurses' and physiatrists' diagnoses made by using or not using the application was calculated. The application included educational content about delirium for nurses, patient data, and some functions. The results of the usability evaluation showed that the application was at a "good" level from the users' perspectives and the rate of agreement between the nurses' and physiatrists' diagnoses made by using the application was higher than not using it. The application designed in the current study can help us to improve the knowledge of nurses, in particular younger nurses regarding delirium. Moreover, making diagnosis based on the results of a delirium assessment tool is more accurate than relying on nursing experience. Finally, timely diagnosis of delirium can help us to improve patient management and quality of care, reduce the duration of hospitalization, and decrease the mortality rate and costs.

Effectiveness of standard of care protocol on patient satisfaction and perceived staff caring

BACKGROUND

Nurse caring has been linked to many clinical outcomes, including patient satisfaction, well-being, and healing. In addition, it is valued by nursing staff and viewed as being essential to clinical practice.

OBJECTIVES

The purpose of this program evaluation study was to determine the difference in patient satisfaction with overall nursing care and perceived nurse caring when a nursing staff standard of care protocol, which included caring activities, was implemented within a nursing department at a National Cancer Institute-designated comprehensive cancer center.

METHODS

A pre-experimental pre-/post-test design with comparison group and a post-test-only design were used to test the effect of the caring protocol on patient satisfaction with nursing care and perceived nurse caring. The study was conducted on seven inpatient units.

FINDINGS

Patient satisfaction with nursing care increased for some items, and perceived nurse caring was ranked highly immediately before discharge. Additional program evaluation studies involving a modified caring protocol may improve satisfaction with nursing care in other settings.

Practical assessment of delirium in palliative care

CONTEXT

Delirium is a common, distressing neuropsychiatric complication for patients in palliative care settings, where the need to minimize burden yet accurately assess delirium is hugely challenging.

OBJECTIVES

This review focused on the optimal clinical and research application of delirium assessment tools and methods in palliative care settings.

METHODS

In addition to multidisciplinary input from delirium researchers and other relevant stakeholders at an international meeting, we searched PubMed (1990-2012) and relevant reference lists to identify delirium assessment tools used either exclusively or partly in the context of palliative care.

RESULTS

Of the 26 delirium scales identified, we selected six for in-depth review: three screening tools, two severity measures, and one research tool for neuropsychological assessment of delirium. These tools differed regarding intended use, ease of use, training requirements, psychometric properties, and validation in or suitability for palliative care populations. The Nursing Delirium Screening Scale, Single Question in Delirium, or Confusion Assessment Method, ideally with a brief attention test, can effectively screen for delirium. Favoring inclusivity, use of Diagnostic and Statistical Manual of Mental Disorders-IV criteria gives the best results for delirium diagnosis. The Revised Delirium Rating Scale and the Memorial Delirium Assessment Scale are the best available options for monitoring severity, and the Cognitive Test for Delirium provides detailed neuropsychological assessment for research purposes.

CONCLUSION

Given the unique characteristics of patients in palliative care settings, further contextually sensitive studies of delirium assessment are required in this population.