Management of acute delirium in hospitalized elderly: a process improvement project

Delirium in Advanced Cancer Leading to Distress in Patients and Family Caregivers

Background: Information is limited about the experiences of delirium among patients with advanced cancer and their caregivers, which makes designing interventions to relieve delirium-related distress difficult. To better understand the experience and thus permit the design of effective interventions, we collected and analyzed data from patients with advanced cancer who had recovered from delirium and their family caregivers. Method: Phenomenolog-ical interviews were conducted separately with 37 caregivers and 34 patients. One investigator reviewed verbatim transcripts of the audio-taped interviews to identify themes, which the research team confirmed. Results: Most patients and all caregivers had vivid memories of the experience; their descriptions were consistent. Most also attributed the confusion to pain medication. Caregivers had concerns about how best to help patients, patients’ imminent deaths, and their own well-being. Conclusions: The main finding that delirium leads to distress for both patients and care-givers indicates the importance of recognizing, treating, and, if possible, preventing delirium in this population. Concerns about pain medications also indicate the need to educate patients and caregivers about symptom management. Caregivers also need emotional support.

Prevalence and Symptoms of Delirium Superimposed on Dementia

Delirium is a frequent syndrome among patients who are elderly. People who are older with cognitive impairment who are institutionalized are at increased risk of developing delirium when hospitalized. In addition, their prior cognitive impairment makes detecting their delirium a challenge. This study goal was to describe the effect of severity of prior cognitive impairment on delirium prevalence and symptom presentation among patients who were older and were newly admitted to an acute care hospital. A total of 104 were included in this descriptive study and screened for delirium. The results showed that the prevalence of delirium increased according to the severity of the patients’ prior cognitive impairment. Except for disorganized thinking, all symptoms of delirium were similar among patients with mild, moderate, and severe prior cognitive impairment. The study concluded that training nurses to recognize subtle changes in mental status among those patients who were older with prior cognitive impairment may prevent the underdetection of delirium.

Complex assessment of the incidence and risk factors of delirium in a large cohort of cardiac surgery patients: a single-center 6-year experience

BACKGROUND

Previous reports provided inconsistent data on the occurrence of postoperative delirium and emphasized its considerable impact on outcome. This study sought to evaluate the incidence and predictors of delirium, together with its relation to cerebral ischemia in a large cohort of cardiac surgery patients in a tertiary high-volume center.

METHODS AND RESULTS

Consecutive patients (n = 8792) were prospectively enrolled from 2003 to 2008. Exclusion criteria were history of psychiatric disorders, use of psychoactive drugs, alcohol abuse, and data incompleteness. Finally, 5781 patients were analyzed in terms of 100 perioperative patient-specific and treatment variables. The incidence of postoperative delirium (DSM IV criteria) was 4.1% and it coexisted with cerebral ischemia in 1.1% of patients. In bivariate analysis, 49 variables were significantly linked to postoperative delirium. Multivariate analysis confirmed that delirium was independently associated with postoperative stroke (logistic odds ratio (logOR) = 2.862, P = 0.004), any blood transfusions (logOR = 4.178, P < 0.0001), age > 65 years (logOR = 2.417, P = 0.002), carotid artery stenosis (logOR = 2.15, P = 0.01), urgent/emergent surgery (logOR = 1.982, P = 0.02), fasting glucose level, intraoperative oxygen partial pressure fluctuations, and hematocrit. Area under ROC curve for the model was 0.8933.

CONCLUSIONS

Early identification of nonpsychiatric perioperative determinants of delirium facilitates its diagnosis and might help develop preventive strategies to improve long-term outcome after cardiac surgery procedures.

Developing effective educational approaches for Liaison Old Age Psychiatry teams: a literature review of the learning needs of hospital staff in relation to managing the confused older patient

BACKGROUND

Deficiencies in the knowledge, skills and attitudes of all healthcare professionals working within the general hospital contribute towards the suboptimal care of older hospitalized patients with confusion. In the U.K., policy dictates that Liaison Old Age Psychiatry teams deliver effective education to general hospital clinical staff. The purpose of this paper is to review the literature concerning the learning needs of healthcare professionals in relation to managing confusion in the older patient in order to inform effective educational approaches for Liaison Old Age Psychiatry teams.

METHODS

A broad range of medical and educational databases were searched. Identified English language studies were selected for further analysis if they had a specific educational focus in the hospital setting and then further subdivided into intervention and naturalistic studies. The impact of intervention studies was evaluated by Kirkpatrick's system. Learning needs, as determined from the naturalistic studies, were mapped to identify themes.

RESULTS

13 intervention studies were identified. Despite a high level of effectiveness for educational interventions, it was unclear what the active components were. A further 23 naturalistic studies were identified; their findings focused on knowledge gaps, diagnostic behaviors and experiences, attitudes and training issues. Few studies specifically researched learning needs or the educational role of liaison teams. Conspicuous by its absence was reference to relevant educational theories.

CONCLUSIONS

The findings of this review can be incorporated in the planning of local curricula by Liaison Teams in order to design educational strategies. There is a need for further research, especially studies exploring the learning needs of all healthcare professionals.

Delirium: a process improvement approach to changing prescribing practices in a community teaching hospital

An interdisciplinary continuous process improvement team developed an educational intervention for physicians, nurses, and other healthcare professionals that focused on the role of medications in the etiology of delirium among hospitalized patients aged 65 years and older. An analysis of prescribing practices after the educational intervention revealed a reduction in the use for 57% of the drugs targeted. Other outcomes from this process improvement methodology are also examined.

Clinical pharmacology of old age syndromes

Several syndromes occur in old age. They are often associated with increased mortality and in all there is a paucity of basic and clinical research. The recent developments in the clinical pharmacology of three common syndromes of old age (delirium, urinary incontinence, and falls) are discussed along with directions for future research.

Physicians vary in approaches to the clinical management of delirium

OBJECTIVES

To ascertain the variation in strategies for managing delirium of physicians with expertise in geriatrics.

DESIGN

Cross-sectional mail survey.

SETTING

United States.

PARTICIPANTS

A probability sample of physician members of the American Geriatrics Society.

MEASUREMENTS

Management choices presented in a two-part case vignette of an older woman hospitalized with a hip fracture who develops mild and then severe delirium.

RESULTS

One hundred twenty-two respondents (43%) selected the three answers constituting current "best practice," 50 (18%) selected an unnecessary diagnostic test (brain imaging, lumbar puncture, or electroencephalogram), and 47 (17%) selected unnecessary pharmacologic therapy for mild delirium. For severe delirium, 270 (96%) selected pharmacological therapy, of whom 180 chose haloperidol alone, 55 chose lorazepam alone, 23 chose lorazepam in combination with haloperidol, and 12 wrote in another drug. Thirty percent of the respondents made any selection of lorazepam, alone or in combination with haloperidol, for mild or severe delirium. Sixty-one percent of those selecting haloperidol for severe delirium chose a dose greater than that recommended for geriatric patients. Sex, date of graduation from medical school, clinical specialty, completion of a geriatric fellowship, or certification in geriatrics had no significant effect on responses.

CONCLUSIONS

The common selection of lorazepam to treat delirium is troubling because benzodiazepines themselves are implicated in delirium. Selection of an initial dose of haloperidol higher than that recommended for geriatric patients by more than half of the respondents is also of concern. There is a paucity of sound clinical evidence to guide the choice of pharmacological agents for treating delirium in older hospitalized patients.

Restraint use in acute and critical care settings: changing practice

Reduction of physical restraint use in the acute and critical care setting is a complex issue. Ethical considerations, regulatory and professional standards, legal liability concerns, healthcare team members' knowledge and attitudes, and unit culture and practice traditions must all be considered. Restraint reduction programs may use a process improvement format that engages the support of the organization's leadership. Specific interventions for restraint reduction, such as understanding the meaning of a patient's behavior, using a team approach, and involving the family can be evaluated and modified for application in the acute and critical care setting. Successful initiatives to decrease the use of restraint in this setting require an understanding of the many factors that support and oppose this practice.

Early recognition of delirium: review of the literature

This review focuses on delirium and early recognition of symptoms by nurses. Delirium is a transient organic mental syndrome characterized by disturbances in consciousness, thinking and memory. The incidence in older hospitalized patients is about 25%. The causes of delirium are multi-factorial; risk factors include high age, cognitive impairment and severity of illness. The consequences of delirium include high morbidity and mortality, lengthened hospital stay and nursing home placement. Delirium develops in a short period and symptoms fluctuate, therefore nurses are in a key position to recognize symptoms. Delirium is often overlooked or misdiagnosed due to lack of knowledge and awareness in nurses and doctors. To improve early recognition of delirium, emphasis should be given to terminology, vision and knowledge regarding health in ageing and delirium as a potential medical emergency, and to instruments for systematic screening of symptoms.