Geriatric patients with cognitive impairment

Adverse Drug Reactions of Acetylcholinesterase Inhibitors in Older People Living with Dementia: A Comprehensive Literature Review

The rising of global geriatric population has contributed to increased prevalence of dementia. Dementia is a neurodegenerative disease, which is characterized by progressive deterioration of cognitive functions, such as judgment, language, memory, attention and visuospatial ability. Dementia not only has profoundly devastating physical and psychological health outcomes, but it also poses a considerable healthcare expenditure and burdens. Acetylcholinesterase inhibitors (AChEIs), or so-called anti-dementia medications, have been developed to delay the progression of neurocognitive disorders and to decrease healthcare needs. AChEIs have been widely prescribed in clinical practice for the treatment of Alzheimer's disease, which account for 70% of dementia. The rising use of AChEIs results in increased adverse drug reactions (ADRs) such as cardiovascular and gastrointestinal adverse effects, resulting from overstimulation of peripheral cholinergic activity and muscarinic receptor activation. Changes in pharmacokinetics (PK), pharmacodynamics (PD) and pharmacogenetics (PGx), and occurrence of drug interactions are said to be major risk factors of ADRs of AChEIs in this population. To date, comprehensive reviews in ADRs of AChEIs have so far been scarcely studied. Therefore, we aimed to recapitulate and update the diverse aspects of AChEIs, including the mechanisms of action, characteristics and risk factors of ADRs, and preventive strategies of their ADRs. The collation of this knowledge is essential to facilitate efforts to reduce ADRs of AChEIs.

[Inpatient equivalent treatment : A new form of care also in gerontopsychiatry]

Seit 2018 ist es nach einer Novellierung des SGB V psychiatrischen Kliniken möglich, stationäre aufsuchende Behandlung im Lebensumfeld psychiatrisch Erkrankter zu realisieren. Dabei sind besondere Strukturmerkmale und Dokumentationspflichten zu beachten. So muss dem Behandlungsteam neben einem Mitglied der ärztlichen und der pflegerischen Berufsgruppe auch mindestens ein Mitglied einer dritten Berufsgruppe angehören (z. B. Ergotherapie, Sozialarbeit, Physiotherapie). Die Leistungsvergütung wird zwischen der jeweiligen Klinik und den Krankenkassen verhandelt und schließt, regional divergent, Abrechnungen nach Pauschalen, nach geleisteten Minuten oder gemischte Modelle ein. Aus psychiatrisch-psychotherapeutischer Sicht bietet die Behandlung gerontopsychiatrischer Patienten in ihrem Wohnumfeld und damit in ihren sozialen Kontexten viele Vorteile. Voraussetzung für ein Gelingen dieses Ansatzes ist ein auch in somatischen Erkrankungen erfahrenes und logistisch hochflexibles multiprofessionelles Behandlungsteam. Unter den Bedingungen der Coronapandemie stellen sich besondere Herausforderungen aufgrund der Besuchsverbote in Pflegeheimen und der mit aufsuchender Arbeit verbundenen Infektionsgefahr für Patienten und Mitglieder des Behandlungsteams.

Drug related problems in older adults living with dementia

BACKGROUND

Compared with those without dementia, older patients with dementia admitted to acute care settings are at higher risk for triad combination of polypharmacy (PP), potentially inappropriate medication (PIM), and drug-drug interaction (DDI), which may consequently result in detrimental health. The aims of this research were to assess risk factors associated with triad combination of PP, PIM and DDI among hospitalized older patients with dementia, and to assess prevalence and characteristics of PP, PIM and DDI in this population.

METHODS

In this retrospective cross-sectional study, 416 older inpatients diagnosed with dementia and referred for specialist geriatric consultation at a tertiary hospital in Brisbane, Australia during 2006-2016 were enrolled. Patients were categorized into two groups according to their exposure to the combination of PP, PIM and DDI: 'triad combination' and 'non-triad combination'. Data were collected using the interRAI Acute Care (AC) assessment instrument. Independent risk factors of exposure to the triad combination were evaluated using bivariate and multivariate logistic regression analyses.

RESULTS

Overall, 181 (43.5%) were classified as triad combination group. The majority of the population took at least 1 PIM (56%) or experienced at least one potential DDI (76%). Over 75% of the participants were exposed to polypharmacy. The most common prescribed PIMs were antipsychotics, followed by benzodiazepines. The independent risk factors of the triad combination were the presence of atrial fibrillation diagnosis and higher medications use in cardiac therapy, psycholeptics and psychoanaleptics.

CONCLUSIONS

The exposure to triad combination of PP, PIM and DDI are common among people with dementia as a result of their vulnerable conditions and the greater risks of adverse events from medications use. This study identified the use of cardiac therapy, psycholeptics and psychoanaleptics as predictors of exposure to PP, PIM and DDI. Therefore, use of these medications should be carefully considered and closely monitored. Furthermore, comprehensive medication reviews to optimize medication prescribing should be initiated and continually implemented for this vulnerable population.

Quality of life of patients with dementia in acute hospitals in Germany: a non-randomised, case-control study comparing a regular ward with a special care ward with dementia care concept

OBJECTIVES

To identify factors that predict the quality of life (QoL) of patients with dementia in acute hospitals and to analyse if a special care concept can increase patients' QoL.

DESIGN

A non-randomised, case-control study including two internal medicine wards from hospitals in Hamburg, Germany.

SETTING AND PARTICIPANTS

In all, 526 patients with dementia from two hospitals were included in the study (intervention: n=333; control: n=193). The inclusion criterion was an at least mild cognitive impairment or dementia. The intervention group was a hospital with a special care ward for internal medicine focusing on patients with dementia. The control group was from a hospital with a regular care ward without special dementia care concept.

OUTCOME MEASURES

Our main outcome was the QoL (range 0-100) from patients with dementia in two different hospitals. A Bayesian multilevel analysis was conducted to identify predictors such as age, dementia, agitation, physical and chemical restraints, or functional limitations that affect QoL.

RESULTS

QoL differs significantly between the control (40.7) and the intervention (51.2) group (p<0.001). Regression analysis suggests that physical restraint (estimated effect: -4.9), psychotropic drug use (-4.4) and agitation (-2.9) are negatively associated with QoL. After controlling for confounders, the positive effect of the special care concept remained (5.7).

CONCLUSIONS

A special care ward will improve the quality of care and has a positive impact on the QoL of patients with dementia. Health policies should consider the benefits of special care concepts and develop incentives for hospitals to improve the QoL and quality of care for these patients.

The Perioperative Care of Older Patients

BACKGROUND

Elderly patients are a growing and vulnerable group with an elevated perioperative risk. Perioperative treatment pathways that take these patients' special risks and requirements into account are often not implemented in routine clinical practice.

METHODS

This review is based on pertinent publications retrieved by a selective search in PubMed, the AWMF guideline database, and the Cochrane database for guidelines from Germany and abroad, meta-analyses, and Cochrane reviews.

RESULTS

The care of elderly patients who need surgery calls for an interdisciplinary, interprofessional treatment concept. One component of this concept is preoperative preparation of the patient ("prehabilitation"), which is best initiated before hospital admission, e.g., correction of deficiency states, optimization of chronic drug treatment, and respiratory training. Another important component consists of pre-, intra-, and postoperative measures to prevent delirium, which can lower the frequency of this complication by 30-50%: these include orientation aids, avoidance of inappropriate drugs for elderly patients, adequate analgesia, early mobilization, short fasting times, and a perioperative nutrition plan. Preexisting cognitive impairment predisposes to postoperative delirium (odds ratios [OR] ranging from 2.5 to 4.5). Frailty is the most important predictor of the postoperative course (OR: 2.6-11). It follows that preoperative assessment of the patient's functional and cognitive status is essential.

CONCLUZION

The evidence-based and guideline-consistent care of elderly patients requires not only close interdisciplinary, interprofessional, and cross-sectoral collaboration, but also the restructuring and optimization of habitual procedural pathways in the hospital. Elderly patients' special needs can only be met by a treatment concept in which the entire perioperative phase is considered as a single, coherent process.

Identifying potentially inappropriate prescribing in older people with dementia: a systematic review

PURPOSE

Older people with dementia are at risk of adverse events associated with potentially inappropriate prescribing.

AIM

to describe (1) how international tools designed to identify potentially inappropriate prescribing have been used in studies of older people with dementia, (2) the prevalence of potentially inappropriate prescribing in this cohort and (3) advantages/disadvantages of tools METHODS: Systematic literature review, designed and reported according to the Preferred Reporting Items for Systematic Review and Meta-Analysis Protocols (PRISMA-P). MEDLINE, EMBASE, PsychInfo, CINAHL, the Cochrane Library, the Social Science Citation Index, OpenGrey, Base, GreyLit, Mednar and the National Database of Ageing Research were searched in April 2016 for studies describing the use of a tool or criteria to identify potentially inappropriate prescribing in older people with dementia.

RESULTS

Three thousand three hundred twenty-six unique papers were identified; 26 were included in the review. Eight studies used more than one tool to identify potentially inappropriate prescribing. There were variations in how the tools were applied. The Beers criteria were the most commonly used tool. Thirteen of the 15 studies using the Beers criteria did not use the full tool. The prevalence of potentially inappropriate prescribing ranged from 14 to 74% in older people with dementia. Benzodiazepines, hypnotics and anticholinergics were the most common potentially inappropriately prescribed medications.

CONCLUSIONS

Variations in tool application may at least in part explain variations in potentially inappropriate prescribing across studies. Recommendations include a more standardised tool usage and ensuring the tools are comprehensive enough to identify all potentially inappropriate medications and are kept up to date.

The Prevalence of Dementia and Cognitive Impairment in Hospitals

BACKGROUND

The care of elderly patients with comorbid dementia poses an increasing challenge in the acute inpatient setting, yet there remains a lack of representative studies on the prevalence and distribution of dementia in general hospitals.

METHODS

We conducted a cross-sectional study of patients aged 65 and older in randomly selected general hospitals in southern Germany. Patients were excluded if they were in an intensive care unit or isolation unit or if they were on specialized wards for psychiatry, neurology, or geriatric medicine. The findings are derived from patient interviews, neuropsychological testing, standardized rating scales, questioning of nursing staff, and the patients' medical records.

RESULTS

1469 patients on 172 inpatient wards of 33 hospitals were studied. 40.0% of them (95% confidence interval, [36.2; 43.7]) had at least mild cognitive impairment. The point-prevalence of dementing illnesses was 18.4% [16.3; 20.7]. Delirium, most often on the basis of dementia, was present in 5.1% [3.9; 6.7]. 60.0% had no cognitive impairment. Dementia was more common among patients of very advanced age, those who were dependent on nursing care, those who lived in old-age or nursing homes, and those with a low level of education. Among patients with dementia, only 36.7% had a documented diagnosis of dementia in the medical record. Patients with dementia were treated more often for dehydration, electrolyte disturbances, urinary tract infections, contusions, and bone fractures, as well as for symptoms and findings of an unknown nature, and much less often for cancer or musculoskeletal diseases.

CONCLUSION

Two out of five elderly patients in general hospitals suffer from a cognitive disturbance. Patients with severe impairments such as dementia or delirium often need special care. Guidelines and model projects offer approaches by which the inpatient care of patients with comorbid dementia can be improved.

[Special care units for patients with cognitive impairment : Results of a nationwide survey in geriatric hospitals in Germany]

BACKGROUND

A large number of older acutely ill patients with cognitive impairment are treated in geriatric care units. Since 1990 some geriatric departments in Germany have established special care units (SCU) for this patient population. In 2010 the first inventory of SCUs in Germany was carried out, which was not based on a nationwide systematic survey.

OBJECTIVE

Nationwide systematic survey of SCUs for patients with cognitive impairment in geriatric institutions in Germany.

METHODS

An online questionnaire (SurveyMonkey®, San Mateo, CA, USA) was sent to all heads of geriatric departments that provide advanced education in geriatric medicine of at least 12 months as registered by the German Society for Geriatric Medicine (DGG).

RESULTS

The questionnaire was sent to 495 geriatric institutions of which 161 answered (response rate 32.5%). Additionally, 13 institutions answered through a weblink sent in a newsletter by the DGG. In 2017 a total of 42 SCUs existed with a mean size of 13.5 ± 4.7 beds. A further 15 hospitals plan to install an SCU in the near future, 5 probably in 2018. In four geriatric departments an existing SCU was closed down. All SCUs implemented special architectural, structural and personnel measures as recommended by the position paper of the DGG. The few conducted evaluations indicated beneficial results for mobility and disruptive behavior.

CONCLUSION

In recent years the number of SCUs has increased considerably. A methodologically sound evaluation with respect to patient-related outcomes including follow-up and cost-effectiveness is lacking and should be carried out in the near future.

Geriatric Basics for the Neurohospitalist

Due to the increasing age of the population, neurohospitalists are more frequently caring for old and very old people. Fundamental definitions and topics related to geriatric medicine are therefore of particular importance. In this review, common issues encountered in geriatric patients hospitalized on the neurology service are discussed. Focus is put on the geriatric assessment, multiprofessional diagnostic and therapeutic procedures, geriatric syndromes, pharmacotherapy of the aged, delirium, pain, and palliative management as they are relevant for the neurohospitalist. In addition, ethical questions are addressed.

Development of a home-based training program for post-ward geriatric rehabilitation patients with cognitive impairment: study protocol of a randomized-controlled trail

Background

Geriatric patients with cognitive impairment (CI) show an increased risk for a negative rehabilitation outcome and reduced functional recovery following inpatient rehabilitation. Despite this obvious demand, evidence-based training programs at the transition from rehabilitation to the home environments are lacking. The aim of this study is to evaluate the efficacy of a feasible and cost-effective home-based training program to improve motor performance and to promote physical activity, specifically-tailored for post-ward geriatric patients with CI.

Methods

A sample of 101 geriatric patients with mild to moderate stage CI following ward-based rehabilitation will be recruited for a blinded, randomized controlled trial with two arms. The intervention group will conduct a 12 week home-based training, consisting of (1) Exercises to improve strength/power, and postural control; (2) Individual walking trails to enhance physical activity; (3) Implementation of patient-specific motivational strategies to promote behavioral changes. The control group will conduct 12 weeks of unspecific flexibility exercise. Both groups will complete a baseline measurement before starting the program, at the end of the intervention, and after 24 weeks for follow-up. Sensor-based as well as questionnaire-based measures will be applied to comprehensively assess intervention effects. Primary outcomes document motor performance, assessed by the Short Physical Performance Battery, and level of physical activity (PA), as assessed by duration of active episodes (i.e., sum of standing and walking). Secondary outcomes include various medical, psycho-social, various PA and motor outcomes, including sensor-based assessment as well as cost effectiveness.

Discussion

Our study is among the first to provide home-based training in geriatric patients with CI at the transition from a rehabilitation unit to the home environment. The program offers several unique approaches, e.g., a comprehensive and innovative assessment strategy and the integration of individually-tailored motivational strategies. We expect the program to be safe and feasible in geriatric patients with CI with the potential to enhance the sustainability of geriatric rehabilitation programs in patients with CI.

Trial registration

International Standard Randomized Controlled Trial (#ISRCTN82378327). Registered: August 10, 2015.

Dementia-friendly interventions to improve the care of people living with dementia admitted to hospitals: a realist review

OBJECTIVES

To identify features of programmes and approaches to make healthcare delivery in secondary healthcare settings more dementia-friendly, providing a context-relevant understanding of how interventions achieve outcomes for people living with dementia.

DESIGN

A realist review conducted in three phases: (1) stakeholder interviews and scoping of the literature to develop an initial programme theory for providing effective dementia care; (2) structured retrieval and extraction of evidence; and (3) analysis and synthesis to build and refine the programme theory.

DATA SOURCES

PubMed, Cumulative Index to Nursing and Allied Health Literature (CINAHL), Cochrane Library, NHS Evidence, Scopus and grey literature.

ELIGIBILITY CRITERIA

Studies reporting interventions and approaches to make hospital environments more dementia-friendly. Studies not reporting patient outcomes or contributing to the programme theory were excluded.

RESULTS

Phase 1 combined findings from 15 stakeholder interviews and 22 publications to develop candidate programme theories. Phases 2 and 3 identified and synthesised evidence from 28 publications. Prominent context-mechanism-outcome configurations were identified to explain what supported dementia-friendly healthcare in acute settings. Staff capacity to understand the behaviours of people living with dementia as communication of an unmet need, combined with a recognition and valuing of their role in their care, prompted changes to care practices. Endorsement from senior management gave staff confidence and permission to adapt working practices to provide good dementia care. Key contextual factors were the availability of staff and an alignment of ward priorities to value person-centred care approaches. A preoccupation with risk generated responses that werelikely to restrict patient choice and increase their distress.

CONCLUSIONS

This review suggests that strategies such as dementia awareness training alone will not improve dementia care or outcomes for patients with dementia. Instead, how staff are supported to implement learning and resources by senior team members with dementia expertise is a key component for improving care practices and patient outcomes.

TRIAL REGISTRATION NUMBER

CRD42015017562.

Spies C, Pischon T. Cognitive Reserve and the Risk of Postoperative Cognitive Dysfunction

BACKGROUND

Post-operative cognitive dysfunction (POCD) occurs in 10 to 54% of older patients during the first few weeks after surgery, but little is known about risk factors predisposing to POCD.

METHODS

Systematic literature review and meta-analysis of cognitive reserve indicators and POCD risk.

RESULTS

Fifteen studies on 5104 patients were included. Follow-up periods spanned 1 day to 6 months. Educational level was the most commonly assessed cognitive reserve indicator, and a longer time spent in education was associated with a reduced risk of POCD (relative risk [RR] per year increment 0.90; 95% confidence interval: [0.87; 0.94]), i.e. each year increase in education was associated with a 10% reduced risk. Similar findings were made for some analyses on education as a categorical predictor (high school versus further/higher education, RR 1.71, [1.30; 2.25]; lower than high school versus further/higher education, RR 1.69, [1.17; 2.44]) though risk was equivalent for patients with high school education and those with lower than high school education (RR 1.02; [0.78; 1.32]).

CONCLUSION

Patients with a relatively higher level of education are at reduced risk of POCD. Risk stratification of surgical patients according to educational level may prove useful.

[Impact of dementia on length of stay and costs in acute care hospitals]

BACKGROUND

The treatment of patients with dementia in acute care hospitals is becoming increasingly more important. The aim of this study was to investigate and demonstrate aspects of the healthcare situation and resource consumption of dementia patients during their hospital stay in a ward for internal medicine.

MATERIAL AND METHODS

Secondary data from a ward of internal medicine were analyzed on a retrospective and case-related basis. For 100 patients a diagnosis of dementia by a general practitioner before hospitalization was identified. The control group was selected by age and sex from the other patients in the ward (n = 100). The costs were calculated on the basis of the German diagnosis-related groups (G-DRG) flat rate case classification. The relationship between dementia, deviation from the average length of stay and costs was investigated under the control of comorbidities using multivariate regression analysis.

RESULTS

Patients with dementia had poorer health at admission with respect to functionality and orientation and a higher risk of falls and pressure ulcers. During hospitalization patients with dementia fell more frequently than patients without dementia (12 % versus 3 %, p = 0.029). Regarding the average length of stay, according to the G‑DRG catalogue patients with dementia stayed 1.4 days longer in hospital than patients without dementia and caused excess costs of 19 %.

CONCLUSION

Patients with dementia are a highly vulnerable patient group with a higher consumption of resources than patients without dementia. The results demonstrate the care-related and economic consequences, which the increasing number of patients with dementia could have in the future.

[Acceptance of dementia diagnostics by getriatric hospital patients : Comparison of various investigation methods with emphasis on FDG-PET imaging]

BACKGROUND

The number of people with dementia is continuously rising, in hospitals as well. For the diagnostics novel methods are available but the attitude of the patients to these methods is yet unknown.

OBJECTIVE

The aim of the study was to evaluatethe opinion of geriatric hospital patients with suspected dementia on the various possible methods of diagnosing dementia, especially fluorodeoxyglucose positron emission tomography (FDG-PET). Additionally, it was assessed if there are differences in toleration between imaging of the brain and conventional diagnostics by neuropsychological testing and if information on the diagnostic methods and the patient's physical or cognitive status influence their opinion.

METHOD

Within the framework of the iDSS001 clinical trial 90 geriatric hospital patients with suspected dementia were interviewed with respect to examinations performed for diagnosing dementia, e.g. anamnesis including physical and neurological examinations, neuropsychological testing, cerebrospinal fluid analysis, magnetic resonance imaging (MRI) and FDG-PET imaging.

RESULTS

Imaging of the brain was tolerated less than anamnesis including physical and neurological examinations, neuropsychological testing and cerebrospinal fluid analysis and patients also felt they were less informed about these procedures. The generally well-accepted FDG-PET imaging procedure was received slightly better than MRI. Cognitively impaired and less depressed patients were less willing to allow repeat MRI examinations.

CONCLUSION

The results suggest that imaging of the brain is perceived by cognitively impaired hospital patients as being more burdensome than conventional diagnostics, such as neuropsychological testing. Improved care during the investigations as well as physical and organizational adjustments could increase the acceptance.