Mortality Risk of Antipsychotic Dose and Duration in Nursing Home Residents with Chronic or Acute Indications

Predictors and Moderators of Hospitalisation and Mortality in People with Dementia Using Antipsychotics: Systematic Review

BACKGROUND AND OBJECTIVES

Antipsychotics are used to manage behaviours and psychological symptoms of dementia. While antipsychotics have been associated with increased risk of adverse outcomes, factors associated with these outcomes have been understudied. Thus, the aim of this study was to identify factors associated with risk of hospitalisation and mortality in older people living with dementia using antipsychotics.

METHODS

In total, four databases (Embase, Medline, PsycINFO and Web of Science) were searched from 2010 to 30 April 2024 using keywords and Medical Subject Heading (MeSH) terms related to dementia, older adults, antipsychotics and outcomes (hospitalisation or mortality). Studies including older adults (≥ 65 years) with dementia and extractable data on risk measures were eligible. Risk of bias was assessed using the Joanna Briggs Institute's critical appraisal tools and narrative synthesis of results was performed.

RESULTS

Of the 4139 studies identified, 24 were included (Total N [patients] = 587,885) with the majority being cohort studies (N = 23). Antipsychotic-related factors associated with mortality risk included the type of antipsychotic (e.g. typical versus atypical, adjusted hazards ratio [aHR] 1.50, 95% confidence interval [CI] 1.10, 2.10), and dose (high versus low, relative increases ranging from 57 to 155%). Patient-related factors included age (aHR 1.05, 95% CI 1.01, 1.08) and concomitant use of medications (e.g. benzodiazepines, aHR 2.19, 95% CI 1.83, 2.63). Antipsychotic-related factors associated with hospitalisation risk included the type of antipsychotic (e.g. atypical verus typical, aHR 1.17, 95% CI 1.08, 1.27) and dose (high versus low, adjusted odds ratio [aOR] 1.19, 95% CI 1.09, 1.31). Patient-related factors included concomitant benzodiazepine use (aHR 1.55, 95% CI 1.29, 1.86), and new use compared with past use (aOR 3.07, 95% CI 2.84, 3.32).

CONCLUSIONS

This review identified several factors associated with risks of hospitalisation and mortality in antipsychotic users with dementia. Clinicians should consider these risk factors when prescribing antipsychotics to people living with dementia.

Psychotropic Drug Prescription in Nursing Homes During the COVID-19 Pandemic

Background

To limit the introduction of coronavirus disease 2019 (COVID-19) into nursing homes, restrictive measures and social distancing were implemented; however, these caused an increase in affective disorders such as depression and anxiety and an alteration of the behavioral and psychological symptoms of dementia. Therefore, it is expected that prescription trends of psychotropic drugs in nursing homes during the pandemic may have changed significantly.

Objective

This study aims to compare patterns of prescribing psychotropic drugs in nursing homes during the COVID-19 pandemic to those of the pre-pandemic period.

Methods

This cross-sectional multicenter study was conducted in geriatric units and psychogeriatric units in seven nursing homes in Gipuzkoa, Spain. On 1 March, 2020, data regarding 511 residents in geriatric units and 163 in psychogeriatric units were recorded. This study examined utilization percentages for psychotropic drugs before the pandemic (April 2018–March 2020) and during the pandemic (April 2020–March 2021) in light of projected usage based on previous years. Following the Anatomical, Therapeutic, Chemical Classification System, four therapeutic groups were analyzed: antipsychotics (N05A), benzodiazepines (N05B and N05C), antidepressants (N06A), and antiepileptic drugs (N03A).

Results

In the case of geriatric units, a downward trend of prescription was reversed for antipsychotics (−0.41; 95% confidence interval [CI] −1.41, 0.60). Benzodiazepine use also decreased less than expected (−2.00; 95% CI −3.00, −1.00). Antidepressant use increased more than predicted (0.02; 95% CI −0.97, 1.01), as did antiepileptic drug use (2.93; 95% CI 2.27, 3.60). In the psychogeriatric units, the drop in antipsychotic utilization was less than expected (−2.31; 95% CI −3.68, −0.93). Although it was expected that the prescription of benzodiazepines would decrease, usage remained roughly the same (−0.28; 95% CI −2.40, 2.34). Utilization of antidepressants (8.57; 95% CI 6.89, 10.24) and antiepileptic drugs (6.10; 95% CI 3.20, 9.00) increased significantly, which was expected, based on the forecast.

Conclusions

For all categories, usage of psychotropic drugs was higher than anticipated based on the forecast; this increase might be related to the worsening of emotional and behavioral disorders caused by the restrictive measures of the COVID-19 pandemic.

Effect of antipsychotics on mortality risk in patients with dementia with and without comorbidities

BACKGROUND

We investigated the mortality risk associated with the initiation of antipsychotic treatment among patients with dementia and whether comorbidities related to the cardiovascular system and diabetes interact with antipsychotic treatment to increase the mortality risk beyond the risk of death independently associated with antipsychotics and comorbidity alone.

METHODS

We designed a matched cohort study using nationwide registry data. All Danish residents aged 65-95 years diagnosed with dementia between 2009 and 2014 were included. Dementia was assessed as a first-time registered dementia diagnosis in the Danish National Patient Register or the Danish Psychiatric Central Research Register and/or a first-time prescription for antidementia medication. Patients exposed to antipsychotics were matched with up to three unexposed patients. Cox proportional hazards models were used to compare rates of death within 180 days after the initiation of antipsychotic treatment. The models were adjusted for potential confounders. Analyses were stratified for diabetes, heart disease, and cerebrovascular disease, and we calculated the relative excess risk due to interaction (RERI).

RESULTS

The study cohort included 8244 exposed patients and 24,730 unexposed patients. A total of 5938 patients died during the first 180 days of follow-up. Patients exposed to antipsychotics had a significantly higher adjusted risk of death (hazard ratio: 1.35, 95% confidence interval: 1.27-1.43) than unexposed patients. Crude mortality rates were higher among patients with heart disease and diabetes when antipsychotic treatment was initiated compared with patients without comorbidities. Relative risk estimates did not differ between patients with and without heart disease, cerebrovascular disease, and diabetes, and RERI suggested no positive additive interaction. Risk analysis suggested higher mortality in patients without cerebrovascular disease who initiated antipsychotics.

CONCLUSION

This nationwide study adds to the evidence that antipsychotic treatment is associated with increased mortality and suggests that attention should be paid to all initiators of antipsychotics irrespective of cardiovascular disease and diabetes.

A Canadian Cohort Study to Evaluate the Outcomes Associated with a Multicenter Initiative to Reduce Antipsychotic Use in Long-Term Care Homes

OBJECTIVES

To evaluate the impact of a multicenter intervention to reduce potentially inappropriate antipsychotic use in Canadian nursing homes at the individual and facility levels.

DESIGN

Longitudinal, population-based cohort study to evaluate the Canadian Foundation for Healthcare Improvement's Spreading Healthcare Innovations Initiative to reduce potentially inappropriate antipsychotic use in 6 provinces/territories.

SETTING AND PARTICIPANTS

Adults in nursing homes in 6 provinces/territories in Canada between 2014 and 2016. The sample involved 4927 residents in 45 intervention homes and 122,570 residents in 1193 control homes in the first quarter of the study.

MEASURES

Assessment data based on the Resident Assessment Instrument 2.0 were used in both settings to track antipsychotic use and to obtain risk-adjusters for a quality indicator on potentially inappropriate use.

INTERVENTION

Quality improvement teams in participating organizations were provided with education, training, and support to implement localized strategies intended to reduce antipsychotic medication use in residents without diagnosis of psychosis.

RESULTS

At the resident level, we found that the odds of remaining on potentially inappropriate antipsychotics were 0.75 in intervention compared with control homes after adjusting for age, sex, aggressive behavior, and cognition. These findings were evident within the pooled Canadian data as well as within provinces. At the facility level, the intervention homes had greater improvements in risk-adjusted quality indicator performance than the control homes, and this was true for the worst, median, and best-performing homes at baseline. There was no major change in the quality indicator for worsening of behavior symptoms.

CONCLUSIONS/IMPLICATIONS

The Canadian Foundation for Healthcare Improvement intervention was associated with a reduction in potentially inappropriate antipsychotic use at both the individual and facility levels of analysis. This improvement in performance was independent of secular trends toward reduced antipsychotic use in participating provinces. This suggests that substantial improvements in medication use may be achieved through targeted, collaborative quality improvement initiatives in long-term care.

Intermittent antipsychotic medication and mortality in institutionalized older adults: A scoping review

OBJECTIVE/BACKGROUND

Antipsychotic use appears to increase mortality risk among older adults with dementia. Whether this risk is similar for regular or intermittent use is unknown. This scoping review aims to explore the temporal association between antipsychotic use and mortality risk for older institutionalized adults.

METHOD

We conducted a scoping review using Medline (PubMed), EMBASE, CINAHL, and the Cochrane libraries between October 2018 and January 2019.

RESULTS

Twenty-eight articles met review criteria. We found that different antipsychotic medications present different safety profiles. The risk of mortality was highest with conventional antipsychotic use and within 40 days of antipsychotic initiation.

CONCLUSIONS

Conventional antipsychotic use increases mortality for older institutionalized adults. The evidence for atypical antipsychotics is less clear. Mortality risk appears highest within 30 to 40 days of initiating antipsychotic treatment. This temporal association suggests increased mortality may actually be the result of some previously unrecognized illness, comorbidity, change in health status, or increased frailty, rather than an idiosyncrasy of the antipsychotic itself.

Delirium Assessment in Older People in Emergency Departments. A Literature Review

Delirium is a neuropsychiatric syndrome often manifesting in acute disease conditions, and with a greater prevalence in the older generation. Delirium in the Emergency Department (ED) is a highly prevalent problem that typically goes unnoticed by healthcare providers. The onset of a delirium episode in the ED is associated with an increase in morbidity and mortality. Because delirium is a preventable syndrome, these statistics are unacceptable. Emergency Department staff therefore should strive to perform systematic screening in order to detect delirium. Different tools have been developed for the assessment of delirium by healthcare professionals other than psychiatrists or geriatricians. Emergency Departments require delirium assessment scales of high sensitivity and specificity, suited to the characteristics of the Department, since the time available is scarce. In addition, the presence of dementia in the assessment of delirium may induce sensitivity bias. Despite the existence of numerous delirium rating scales, scales taking less than three minutes to complete are recommended. The choice of the tool depends on the characteristics of the ED. The only scale affording high sensitivity and specificity in older people with and without dementia is the Four "A"s Test (4AT); it requires no training on the part of the rater, and can be performed in under two minutes.

Increased All-Cause Mortality by Antipsychotic Drugs: Updated Review and Meta-Analysis in Dementia and General Mental Health Care

It is almost ten years since the Banerjee 2009 report established that inappropriate prescribing of antipsychotics in the elderly was occurring in the UK and such patients had an 85% increased risk of adverse events and greater mortality. This report was a critical analysis addressing the outcomes of treatment practices for dementia in UK patients and globally, aimed at reducing prescribing of antipsychotic drugs for dementia. Since 2009, many significant studies worldwide (including several more recent large retrospective studies) provide more extensive longitudinal data for the adverse impacts of antipsychotic drugs in dementia. We have used the data in these studies including from over 380,000 dementia patients, with 85,069 prescribed antipsychotic agents as well as from 359,235 non-dementia antipsychotic drug users to provide an up-dated meta-analysis. This is the first meta-analysis to include evidence from general mental health studies showing that antipsychotic drugs precipitate excessive mortality across the spectrum. Prescribing of antipsychotic drugs for dementia or for other mental health care should be avoided and alternative means sought for handling behavioral disorders of such patients.

Incidence and time trends of drug-induced parkinsonism: A 30-year population-based study

Background

Epidemiological studies of drug‐induced parkinsonism remain limited.

Objectives

To investigate the incidence and time trends of drug‐induced parkinsonism over 30 years in a geographically defined American population.

Methods

We used the medical records‐linkage system of the Rochester Epidemiology Project to identify all persons in Olmsted County, Minnesota, who received a screening diagnostic code for parkinsonism from 1976 through 2005. A movement disorders specialist reviewed the complete medical records of each person to confirm the presence of drug‐induced parkinsonism associated with dopamine‐blocking or dopamine‐depleting medications.

Results

Among 906 incident cases of parkinsonism from 1976 to 2005, 108 persons had drug‐induced parkinsonism (11.9%). The average annual incidence rate of drug‐induced parkinsonism was 3.3 per 100,000 person‐years, was higher in women, and increased with older age. Drug‐induced parkinsonism was the fifth‐most common type of parkinsonism overall; however, it was the most common type among persons younger than age 40 years. Typical antipsychotic drugs were the most common class of drugs associated with parkinsonism, whereas atypical antipsychotic drugs were rarely involved. The incidence rate of drug‐induced parkinsonism decreased 32.0% per decade (relative risk = 0.68; 95% confidence interval: 0.49–0.94) and 68.6% over the 30 years of the study. The decrease was similar in men (65.2%) and women (69.4%); however, the trend was significant only in women.

Conclusions

The incidence of drug‐induced parkinsonism increased with older age and was higher in women at all ages. Typical antipsychotic drugs were the most common cause. The incidence of drug‐induced parkinsonism decreased over the 30 years of the study because of changes in drug use. © 2016 The Authors. Movement Disorders published by Wiley Periodicals, Inc. on behalf of International Parkinson and Movement Disorder Society.