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Delirium in the Emergency Department: Novel Screening

2018年5月1日更新者：Jin H. Han、Vanderbilt University Medical Center

Delirium is an acute confusional state characterized by altered or fluctuating mental status, inattention, and either disorganized thinking or an altered level of consciousness. This form of organ dysfunction occurs in up to 10% of older emergency department (ED) patients and is associated with worsening mortality, prolonged hospital length of stay, higher health care costs, and accelerated functional and cognitive decline. Despite the negative consequences of delirium, the majority of cases are unrecognized by emergency physicians because it is not routinely screened for. In an effort to facilitate delirium screening, the investigators sought to validate three brief delirium assessments in the ED setting.

研究概览

地位

完全的

条件

谵妄

详细说明

Delirium is often missed because emergency physicians do not routinely screen for this diagnosis. Most delirium assessments can take up to 10 minutes to perform making them less likely to be incorporated into the routine physician assessment. Using brief (<2 minutes) and easy to use delirium assessments may ameliorate this quality of care issue. The Confusion Assessment Method for the Intensive Care Unit (CAM-ICU) possesses these characteristics, but has only been validated in mechanically and non-mechanically ventilated intensive care unit patients. Recently, the investigators also developed the Brief Confusion Assessment Method (B-CAM) which is a modification of the CAM-ICU. The benefit is that it takes even less time than the CAM-ICU. The investigators also developed the Emergency Department Delirium Triage Screen (ED-DTS) designed to be highly sensitive and moderately specific delirium assessment for the nurse's triage assessment. It is hypothesized that a negative ED-DTS would rule out delirium, while a positive ED-DTS would require a more formal delirium assessment such as the CAM-ICU and B-CAM. These new delirium assessments require validation in older ED patients. As result, the investigators propose the following and the following specific aims:

Aim #1: To validate the B-CAM in older ED patients. The B-CAM will be performed by a clinical trials associate (CTA) and principal investigator in 200 ED patients that are > 65 years old. This instrument will be validated against a psychiatrist's Diagnostic and Statistical Manual of Mental Disorders, 4th. Edition Text Revision assessment as the reference standard.

Aim #2: To validate the CAM-ICU in older ED patients. The CAM-ICU will be performed by a clinical trials associate (CTA) and principal investigator in approximately 200 ED patients that are > 65 years old. This instrument will be validated against a psychiatrist's Diagnostic and Statistical Manual of Mental Disorders, 4th. Edition Text Revision assessment as the reference standard.

Aim #3: To validate the ED-DTS in older ED patients. The ED-DTS will be performed by a clinical trials associate (CTA) and principal investigator in 200 ED patients that are > 65 years old. This instrument will be validated against a psychiatrist's Diagnostic and Statistical Manual of Mental Disorders, 4th. Edition Text Revision assessment as the reference standard.

研究类型

观察性的

注册 (实际的)

498

联系人和位置

本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。

学习地点

美国
- Tennessee
  - Nashville、Tennessee、美国、37232
    - Vanderbilt University Medical Center

参与标准

研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

65年及以上 (年长者)

接受健康志愿者

不

有资格学习的性别

全部

取样方法

非概率样本

研究人群

The participants will be those who are Vanderbilt University Emergency Department patients 65 years or older. There will be no selection bias in regards to race or gender. Only those who meet the inclusion/exclusion criteria will be considered for study inclusion.

描述

Inclusion Criteria:

65 years of age or greater
In the Emergency Department for less than 12 hour at the time of enrollment

Exclusion Criteria:

Severe mental retardation or dementia
Baseline communication barriers such as aphasia, deafness, blindness, or who are unable to speak English
Refusal of consent
Previous enrollment
Comatose
Out of the hospital before the assessments are completed

学习计划

本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。

研究是如何设计的？

设计细节

团体/队列数

队列和干预

团体/队列
Older Emergency Department Patients Patients who were 65 years or older from the emergency department were enrolled.

研究衡量的是什么？

主要结果指标

结果测量	措施说明	大体时间
Delirium 大体时间：Within 3 hours of the study assessments.	Delirium was diagnosed by a consultation-liaison psychiatrist assessment using Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision (DSM-IV-TR) criteria. The psychiatrists performed a battery of bedside cognitive tests, including (but not limited to) Clock Drawing Test, Luria hand sequencing task, and tests for verbal fluency. A focused neurological examination (i.e., screening for paraphasic errors, tremors, tone, asterixis, frontal release signs etc.,) and evaluation for affective lability, hallucinations, and level of alertness were also conducted routinely. Confrontational naming, proverb interpretation or similarities, and assessments for apraxias were performed at the discretion of the reference psychiatrists, especially if the diagnosis of delirium was inconclusive.	Within 3 hours of the study assessments.

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

赞助

Vanderbilt University Medical Center

调查人员

首席研究员：Jin H Han, MD, MSc、Vanderbilt University Medical Center

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始

2009年7月1日

初级完成 (实际的)

2012年2月1日

研究完成 (实际的)

2012年2月1日

研究注册日期

首次提交

2010年7月12日

首先提交符合 QC 标准的

2010年7月13日

首次发布 (估计)

2010年7月14日

研究记录更新

最后更新发布 (实际的)

2018年5月3日

上次提交的符合 QC 标准的更新

2018年5月1日

最后验证