Frailty: a key indicator to minimize inappropriate medication in older people

Kidney Aging and Chronic Kidney Disease

The process of aging inevitably leads to an increase in age-related comorbidities, including chronic kidney disease (CKD). In many aspects, CKD can be considered a state of accelerated and premature aging. Aging kidney and CKD have numerous common characteristic features, ranging from pathological presentation and clinical manifestation to underlying mechanisms. The shared mechanisms underlying the process of kidney aging and the development of CKD include the increase in cellular senescence, the decrease in autophagy, mitochondrial dysfunction, and the alterations of epigenetic regulation, suggesting the existence of potential therapeutic targets that are applicable to both conditions. In this review, we provide a comprehensive overview of the common characteristics between aging kidney and CKD, encompassing morphological changes, functional alterations, and recent advancements in understanding the underlying mechanisms. Moreover, we discuss potential therapeutic strategies for targeting senescent cells in both the aging process and CKD.

Medication Use and Costs Among Older Adults Aged 90 Years and Older in Italy

Older adults are often affected by multiple chronic conditions and experience geriatric syndromes that may affect the risk/benefit profile of medications. Little is known about the use of such medications in the older population. This article describes medication use and costs in Italian adults aged ≥90 years. Data from the 2019 Pharmaceutical Prescriptions database, concerning data on medications reimbursed by the Italian National Health Service, were analyzed in terms of prevalence and amount of use expressed as defined daily dose/1,000 users (DDD/1,000 users/day), accounting for different age-groups and sex. All individuals aged ≥90 years used at least one medication, with a mean number of 3128 DDD/1,000 users/day corresponding to an annual cost of 683 euros per user. Both use and costs linearly decreased with increasing age, with men accounting for a higher amount of DDD/1,000 users and costs than women across all age-groups. Antihypertensives (1330 DDD/1,000 inhabitants), antiplatelet agents (337 DDD/1,000 inhabitants), medications for peptic ulcer and gastroesophageal reflux (328 DDD/1,000 inhabitants), and lipid-lowering agents (166 DDD/1,000 inhabitants) were the most frequently used medications. We observed a progressive decrease in the usage of the majority of medications with increasing age, with the exception of antibiotics and antipsychotics. Individuals aged ≥90 years used a lower DDD/1,000 users, with an associated decrease in annual costs. The persistent use of preventive medications highlights the potential lack of awareness regarding medication rationalization and guidance for optimizing prescriptions. Our findings highlight the need for further initiatives to improve medications’ appropriateness in these older age-groups.

Factors affecting missed nursing care in hospitalized frail older adults in the medical wards: a qualitative study

BACKGROUND

Frail older adults who are hospitalized, are more likely to experience missed nursing care (MNC) due to high care needs, communication problems, and complexity of nursing care. We conducted a qualitative study to examine the factors affecting MNC among hospitalized frail older adults in the medical units.

METHODS

This qualitative study was carried using the conventional content analysis approach in three teaching hospitals. Semi-structured interviews were conducted with 17 nurses through purposive and snowball sampling. The inclusion criteria for the nurses were: at least two years of clinical work experience on a medical ward, caring for frail older people in hospital and willingness to participate. Data were analyzed in accordance with the process described by Graneheim and Lundman. In addition, trustworthiness of the study was assessed using the criteria proposed by Lincoln and Guba.

RESULTS

In general, 20 interviews were conducted with nurses. A total of 1320 primary codes were extracted, which were classified into two main categories: MNC aggravating and moderating factors. Factors such as "age-unfriendly structure," "inefficient care," and "frailty of older adults" could increase the risk of MNC. In addition, factors such as "support capabilities" and "ethical and legal requirements" will moderate MNC.

CONCLUSIONS

Hospitalized frail older adults are more at risk of MNC due to high care needs, communication problems, and nursing care complexity. Nursing managers can take practical steps to improve the quality of care by addressing the aggravating and moderating factors of MNC. In addition, nurses with a humanistic perspective who understand the multidimensional problems of frail older adults and pay attention to their weakness in expressing needs, can create a better experience for them in the hospital and improve patient safety.

Frailty Status and Cognitive Function Should Guide Prescribing in Long-term Care Facilities

Frailty, dementia and complex multimorbidity are highly prevalent among residents of long-term care facilities (LTCFs). Prescribing for residents of LTCFs is often informed by disease-specific clinical practice guidelines based on research conducted among younger and more robust adults. However, frailty and cognitive impairment may modify medication benefits and risks. Residents with frailty and advanced dementia may be at increased susceptibility to adverse drug events (ADEs) and often have a lower likelihood of achieving long-term therapeutic benefit from chronic preventative medications. For this reason, there is a strong rationale for deprescribing, particularlyamong residents with high medication burdens, swallowing difficulties or limited dexterity. Conversely, frailty and dementia have also been associated with under-prescribing of clinically indicated medications. Unnecessarily withholding treatment based on assumed risk may deprive vulnerable population groups from receiving evidence-based care. There is a need for specific evidence regarding medication benefits and risks in LTCF residents with frailty and dementia. Observational studies conducted using routinely collected health data may complement evidence from randomized controlled trials that often exclude people living with dementia, frailty and in LTCFs. Balancing over- and under-prescribing requires consideration of each resident's frailty and cognitive status, therapeutic goals, time-to-benefit, potential ADEs, and individual values or preferences. Incorporating frailty screening into medication review may also provide better alignment of medication regimens to changing goals of care. Timely identification of frail residents as part of treatment decision-making may assist with targeting interventions to minimize and monitor for ADEs. Shifting away from rigid application of conventional disease-specific clinical practice guidelines may provide an individualized and more holistic assessment of medication benefits and risks in the LTCF setting.

Identification and management of frail patients in English primary care: an analysis of the General Medical Services 2018/2019 contract dataset

OBJECTIVES

The aim of this study was to explore the extent of implementation of the General Medical Services 2018/2019 'frailty identification and management' contract in general practitioner (GP) practices in England, and link implementation outcomes to a range of practice and Clinical Commissioning Group (CCG) factors.

DESIGN

A cross-sectional study design using publicly available datasets relating to the year 2018 for all GP practices in England.

SETTINGS

English general practices.

DATA

The analysis was conducted across 6632 practices in 193 CCGs with 9 995 558 patients aged 65 years or older.

OUTCOMES

Frailty assessment rates, frailty coding rates and frailty prevalence rates, plus rates of medication reviews, falls assessments and enriched Summary Care Records (SCRs).

ANALYSIS

Summary statistics were calculated and multilevel negative binomial regression analysis was used to investigate relationships of the six outcomes with explanatory factors.

RESULTS

14.3% of people aged 65 years or older were assessed for frailty, with 35.4% of these-totalling 5% of the eligible population-coded moderately or severely frail. 59.2% received a medications review, but rates of falls assessments (3.7%) and enriched SCRs (21%) were low. However, percentages varied widely across practices and CCGs. Practice differences in contract implementation were most strongly accounted for by their grouping within CCGs, with weaker but still important associations with some practice and CCG factors, particularly healthcare demand-related factors of chronic caseload and (negatively) % of patients aged 65 years or older.

CONCLUSION

CCG appears the strongest determinant of practice engagement with the frailty contract, and fuller implementation may depend on greater engagement of CCGs themselves, particularly in commissioning suitable interventions. Practices understandably targeted frailty assessments at patients more likely to be found severely frail, resulting in probable underidentification of moderately frail individuals who might benefit most from early interventions. Frailty prevalence estimates based on the contract data may not reflect actual rates.

Attitudes of ambulatory care older Nepalese patients towards deprescribing and predictors of their willingness to deprescribe

INTRODUCTION

Older adults continue to receive potentially inappropriate medications necessitating the need for medication optimization, by deprescribing. To ensure a holistic approach to deprescribing, it is essential to understand the perception of older adults towards deprescribing. This study aimed to assess the attitude of older ambulatory patients towards deprescribing and to identify factors predicting their willingness to deprescribe.

METHODS

A cross-sectional survey was conducted in central Nepal between March and September 2019 among 385 older ambulatory care patients (aged ⩾65 years) who were taking at least one regular medicine. The perception of patients towards deprescribing was assessed using the revised Patients' Attitudes Towards Deprescribing (rPATD) questionnaire via a face-to-face interview method. Descriptive statistics were performed to describe patients' characteristics and their attitudes towards deprescribing. A multivariate logistic regression analysis was used to determine predictors of the willingness of older ambulatory patients towards deprescribing.

RESULTS

The median [interquartile range (IQR)] age of patients was 72 (8) years. Nearly three in five patients (64.9%) had hypertension, with 11.2% having polypharmacy. More than half of the patients (57.4%) would be willing to stop one or more of their regular medicines if their doctor said it was possible to do so. Regression analysis showed that age [odds ratio (OR) 0.946; 95% CI 0.913, 0.981; p = 0.003] and concerns about stopping medicine score (OR 0.541; 95% CI 0.334, 0.876; p = 0.013) were predictors of the willingness of the older patients towards deprescribing.

CONCLUSION

One in two older ambulatory care patients in Nepal would be willing to have one or more of their medicines deprescribed. The factors predicting their willingness to deprescribe are their age and concerns about stopping medicines. Clinicians should consider discussing the possibility of deprescribing with older patients for the prevention of potential medication-related harms.

PLAIN LANGUAGE SUMMARY

What do older Nepalese patients think about withdrawal or dose reduction of an inappropriate medication?Introduction: Research suggests that older adults (aged ⩾65 years) continue to receive medications that have the potential for harm rather than a benefit. This necessitates the need for withdrawal or dose reduction of such inappropriate medications, the process known as deprescribing. Understanding what older patients think about this process could be a stepping-stone to the general approach for its implementation. Data on deprescribing is lacking from Nepal. Therefore, we designed a survey to explore the attitude of older patients towards deprescribing and factors that could predict their willingness to deprescribe.Methods: This study was conducted between March to September 2019 among 385 older patients who were taking at least one regular medicine and were visiting selected hospitals of Nepal for outpatient services. We performed a face-to-face interview to assess the attitude of patients towards deprescribing using a validated tool called revised Patients' Attitudes Towards Deprescribing (rPATD) questionnaire that quantified the response through scoring. The data were subjected to statistical analysis to determine the attitudes of Nepalese older patients towards deprescribing and to develop a model to predict their willingness to deprescribe.Results: The average age of the participant was 72 years with 65% having hypertension and 11% using more than five medications. Our data suggested that one in two older Nepalese patients would be willing to stop one or more of their regular medications if their doctors said it was possible to do so. Their willingness to deprescribe could be predicted from their age and concerns about stopping medications.Conclusion: Clinicians should consider discussing the possibility of deprescribing with older patients for the prevention of potential medication-related harms.

Bacterial pneumonia coinfection and antimicrobial therapy duration in SARS-CoV-2 (COVID-19) infection

Background

Bacterial respiratory coinfection in the setting of SARS-CoV-2 infection remains poorly described. A description of coinfection and antimicrobial usage is needed to guide ongoing antimicrobial stewardship.

Objectives

To assess the rate of empirical antimicrobial treatment in COVID-19 cases, assess the rate and methods of microbiological sampling, assess the rate of bacterial respiratory coinfections and evaluate the factors associated with antimicrobial therapy in this cohort.

Methods

Inpatients with positive SARS-CoV-2 PCR were recruited. Antibiotic prescription, choice and duration were recorded. Taking of microbiological samples (sputum culture, blood culture, urinary antigens) and culture positivity rate was also recorded. Linear regression was performed to determine factors associated with prolonged antimicrobial administration.

Results

A total of 117 patients were recruited; 84 (72%) were prescribed antimicrobial therapy for lower respiratory tract infections. Respiratory pathogens were identified in seven (6%) patients. The median duration of antimicrobial therapy was 7 days. C-reactive protein level, oxygen requirement and positive cultures were associated with prolonged duration of therapy.

Conclusions

The rate of bacterial coinfection in SARS-CoV-2 is low. Despite this, prolonged courses of antimicrobial therapy were prescribed in our cohort. We recommend active antimicrobial stewardship in COVID-19 cases to ensure appropriate antimicrobial prescribing.

Medication use in aged care residents in the last year of life: A scoping review

BACKGROUND

A substantial number of older adults die in residential aged care facilities, yet little is known about the characteristics of and how best to optimise medication use in the last year of life.

AIM

The aim of this review was to map characteristics of medication use in aged care residents during the last year of life in order to examine key concepts related to medication safety and draw implications for further research and service provision.

DESIGN

A scoping review following Arskey and O'Malley's framework was conducted using a targeted keyword search, followed by assessments of eligibility based on title and content of abstracts and full papers. Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, the scoping review protocol was prospectively registered to the Open Science Framework on 27 November 2018.

DATA SOURCES

We searched MEDLINE, EMBASE, AMED, CINAHL and Cochrane databases to identify peer-reviewed studies published between 1937 and 2018, written in English and looking at medication use in individuals living in aged care facilities within their last year of life.

RESULTS

A total of 30 papers were reviewed. Five key overarching themes were derived from the analysis process: (1) access to medicines at the end of life, (2) categorisation and classes: medicines and populations, (3) polypharmacy and total medication numbers, (4) use of symptomatic versus preventive medications and (5) 'inappropriate' medications.

CONCLUSION

Number of prescriptions or blunt categorisations of medications to assess their appropriateness are unlikely to be sufficient to promote well-being and medication safety for older people in residential aged care in the final stages of life.

Potentially inappropriate medication use and frailty phenotype among community-dwelling older adults: A population-based study

AIMS AND OBJECTIVES

To investigate the association between potentially inappropriate medication use and frailty phenotype among community-dwelling older adults and to identify factors associated with the use of these drugs according to frailty condition.

BACKGROUND

There is insufficient evidence about the association between inappropriate medication use and the condition of frailty, particularly among community-dwelling older adults. Therefore, data obtained from population surveys should be made available in order to support the development of clinical guidelines about the prevention of frailty.

DESIGN

This was a cross-sectional study conducted according to the STROBE Checklist.

METHODS

This population-based study was conducted on 1,607 older adults. Potentially inappropriate medication use was assessed according to Beers criteria and frailty syndrome was determined according to the phenotype proposed by Fried and colleagues. Data were analysed statistically using multinomial or binary logistic regression models.

RESULTS

About 13.6% of the subjects were frail, and 36.8% used at least one inappropriate medication. The adjusted model indicated that, the more potentially inappropriate medication use, the higher the prevalence of frailty, prefrailty and the walking slowness component. Female gender, one or more years of schooling, five or more reported morbidities, and instrumental dependence regarding daily life activities were factors associated with potentially inappropriate medication use in the nonfrail group.

CONCLUSION

Inappropriate medication use was prevalent among community-living older adults, and its presence was associated with the occurrence of frailty.

RELEVANCE TO CLINICAL PRACTICE

Primary care nurses are the professionals with the greatest contact with the older adults in the community. Thus, the results support the inclusion of the assessment of potentially inappropriate medication use in the routine of nursing consultation. In case of a positive screening, the older person should be referred to geriatric evaluation in order to optimise drug treatment for the prevention of frailty.

Acute vs cumulative benefits of metformin use in patients with type 2 diabetes and heart failure

AIMS

To evaluate the association between metformin use and heart failure (HF) exacerbation in people with type 2 diabetes (T2D) and pre-existing HF using alternative exposure models.

MATERIALS AND METHODS

We analysed data for patients with T2D and incident HF from a national US insurance claims database. We compared the results of several multivariable Cox models where time-varying use of metformin was modelled as: (1) current use; (2) total duration of past use; and (3) use within the past 30 days or 10 days. The outcome was defined as time to HF-related hospitalization. We then re-analysed the data using flexible weighted cumulative exposure (WCE) models.

RESULTS

A total of 7620 patients with diabetes and incident HF were analysed. The mean (SD) patient age was 54 (8) years, and 58% (n = 4440) were men. In all, 3799 individuals (50%) were exposed to metformin, and 837 HF hospitalizations (11%) occurred (mean follow-up 1.7 years). Results of conventional models suggested potential acute benefits in reducing HF exacerbation with metformin use in the past 10 days (adjusted hazard ratio [aHR] 0.76, 95% confidence interval [CI] 0.60-0.97), while WCE models, which provided a better fit for the data, suggested lack of a systematic effect (aHR 0.91, 95% CI 0.69-1.20).

CONCLUSIONS

Our results suggest that cumulative metformin exposure does not decrease the risk of HF-related exacerbation. Use of other anti-hyperglycaemic agents with proven efficacy in patients with HF should also be considered as treatment options in this population.

Genomic Variation and Pharmacokinetics in Old Age: A Quantitative Review of Age- vs. Genotype-Related Differences

Older persons may particularly benefit from pharmacogenetic diagnostics, but there is little clinical evidence on that question. We quantitatively analyzed the effects of age and genotype in drugs with consensus on a therapeutically relevant impact of a genotype. Assuming additive effects of age and genotype, drugs may be classified in groups with different priorities to consider either age, or genotype, or both, in therapy. Particularly interesting were those studies specifically analyzing the age‐by‐genotype interaction.

MANAGEMENT OF ENDOCRINE DISEASE: l-Thyroxine replacement therapy in the frail elderly: a challenge in clinical practice

The number of elderly people, mostly aged over 85 years (the 'oldest old'), is increasing worldwide. As a consequence, accompanying morbidity and disability have been increasing, and frailty, defined as an age-related condition of decline of physiological reserves and vulnerability, represents an emerging problem. Caring for older frail people may represent a challenge, since the elderly differ significantly from younger adults in terms of comorbidity, polypharmacy, pharmacokinetics and greater vulnerability to adverse drug reactions. Specific criteria of therapeutic appropriateness and modified goals of care are needed in such patients, also in endocrine care settings. Indeed, thyroid dysfunctions are among the most common conditions in older, multimorbid populations. The prevalence of overt and subclinical hypothyroidism is as high as 20% and thyroid hormone prescription is common in the elderly, with a trend toward levothyroxine treatment of more marginal degrees of hypothyroidism. In addition, older patients have the highest rate of overtreatment during replacement therapy and are more susceptible to developing adverse effects from thyroid hormone excess. Recently, results of a multicentric randomized controlled trial, the TRUST-IEMO collaboration trial, added further insights to the debated question of whether and when levothyroxine treatment is required and if it is beneficial in the elderly. With this in mind, we revised the relevant literature on the impact of thyroid dysfunction and replacement therapy among older people, with the aim to better define indications, benefits and risks of l-T4 replacement therapy in the frail elderly.

Use of Preventive Medication in Patients With Limited Life Expectancy: A Systematic Review

CONTEXT

Optimal prescribing in patients with limited life expectancy (LLE) remains unclear.

OBJECTIVES

This study systematically reviews the published literature regarding the use of preventive medication in patients with reduced life expectancy.

METHODS

A systematic literature search was conducted using three databases (MEDLINE, EMBASE, and CINAHL). Articles published in English from January 1995 to December 2015 were retrieved for analysis to identify peer-reviewed, observational studies assessing use of preventive medications in patients with LLE. Inclusion criteria were: patients with a LLE (less than or equal to two years); prescribed/used preventive medications.

RESULTS

Of the 15 studies meeting our eligibility criteria, six were from inpatient hospital settings, five in palliative care, three in nursing homes, and one in community settings. The most common life-limiting illnesses described in the studies were cancer (n = 6), cardiovascular diseases (n = 4), dementia and cognitive impairment (n = 2), and other life-limiting illnesses (n = 3). Lipid-lowering medications, especially the statins were frequently prescribed preventive medication followed by antiplatelets, angiotensin converting enzyme inhibitors and angiotensin receptor blockers, anti-osteoporosis medications, and calcium channel blockers. Only four studies reported the instances of medication withdrawal.

CONCLUSION

Patients continue to receive medications that are not prescribed as symptomatic treatment despite having a LLE. Very few rigorous studies have been conducted on minimizing preventive medications in patients with LLE, and expert opinion varies on medication optimization at the end of life. A consensus guideline that addresses this gap is of paramount importance.

Drug prescription appropriateness in the elderly: an Italian study

Purpose

Correct drug prescription in the elderly is a difficult task that requires careful survey of the current pharmacological therapies. In this article, we reviewed the drug prescriptions provided to 860 persons aged 65 years or over, residing in a small city of Lombardy, Italy.

Methods

Subjects were recruited from a local nursing home, the Pavia and Vigevano Neuropsychological Center for Alzheimer’s Disease, general practitioners’ offices, and the local University of the Third Age. For each patient, the amount of potentially inappropriate prescriptions (PIPs), sedative and anticholinergic load (SL and AL, respectively), and drug–drug interactions were evaluated.

Results

Widespread polypharmacy, giving rise to 10.06% of PIPs in the whole collection of prescriptions, was observed. In particular, PIPs mainly concern drugs acting at the central nervous system level, mostly benzodiazepines and antipsychotics. Moreover, approximately one-fourth of the subjects had an elevated SL and approximately one-tenth a high AL. Drug–drug interactions were frequent (266 requiring medical attention), up to five for each single patient. Of concern was the underuse of antidementia drugs: only 20 patients received a cholinesterase inhibitor or memantine, although 183 patients were potentially suitable for this treatment.

Conclusion

These results demonstrate the need to develop novel strategies aimed at improving the quality of drug prescription.

A practical approach to the pharmacological management of hypertension in older people

Hypertension is the leading cause of cardiovascular (CV) morbidity and mortality in adults over the age of 65. The first part of this paper is an overview, summarizing the current guidelines on the pharmacological management of hypertension in older adults in Europe and the USA, and evidence from key trials that contributed to the guidelines. In the second part of the paper, we will discuss the major challenges of managing hypertension in the context of multimorbidity, including frailty, orthostatic hypotension (OH), falls and cognitive impairment that are associated with ageing. A novel 'BEGIN' algorithm is proposed for use by prescribers prior to initiating antihypertensive therapy to guide safe medication use in older adults. Practical suggestions are highlighted to aid practitioners in making rational decisions to treat and monitor hypertension, and for considering withdrawal of antihypertensive drugs in the complex older person.

Geriatrician interventions on medication prescribing for frail older people in residential aged care facilities

Objective

In Australian residential aged care facilities (RACFs), the use of certain classes of high-risk medication such as antipsychotics, potent analgesics, and sedatives is high. Here, we examined the prescribed medications and subsequent changes recommended by geriatricians during comprehensive geriatric consultations provided to residents of RACFs via videoconference.

Design

This is a prospective observational study.

Setting

Four RACFs in Queensland, Australia, are included.

Participants

A total of 153 residents referred by general practitioners for comprehensive assessment by geriatricians delivered by video-consultation.

Results

Residents’ mean (standard deviation, SD) age was 83.0 (8.1) years and 64.1% were female. They had multiple comorbidities (mean 6), high levels of dependency, and were prescribed a mean (SD) of 9.6 (4.2) regular medications. Ninety-one percent of patients were taking five or more medications daily. Of total medications prescribed (n=1,469), geriatricians recommended withdrawal of 9.8% (n=145) and dose alteration of 3.5% (n=51). New medications were initiated in 47.7% (n=73) patients. Of the 10.3% (n=151) medications considered as high risk, 17.2% were stopped and dose altered in 2.6%.

Conclusion

There was a moderate prevalence of potentially inappropriate high-risk medications. However, geriatricians made relatively few changes, suggesting either that, on balance, prescription of these medications was appropriate or, because of other factors, there was a reluctance to adjust medications. A structured medication review using an algorithm for withdrawing medications of high disutility might help optimize medications in frail patients. Further research, including a broader survey, is required to understand these dynamics.

Polypharmacy and frailty: prevalence, relationship, and impact on mortality in a French sample of 2350 old people

PURPOSE

To assess the prevalence of polypharmacy and frailty, to examine their association, and to establish their independent and combined effects on mortality in a sample of French old people.

METHODS

This is a cross-sectional population study of people aged 70 years and over. A total of 2350 respondents were interviewed at home in 2008-2010. Frailty was defined as impairment in three domains or more among nutrition, energy, physical activity, strength, and mobility, in the absence of difficulties in basic activities of daily living. Mortality data were documented after a mean follow-up period of 2.6 years.

RESULTS

Mean age of the population was 83.3 +/- 7.5 years, with 59.4% of women. Prevalence of frailty was 17.0%. Polypharmacy (5-9 drugs) was reported in 53.6% of the population, and excessive polypharmacy (10 drugs or more) in 13.8%. After adjustment for socio-demographic and health variables, polypharmacy and excessive polypharmacy were associated with frailty with odds ratio 1.77 [1.20-2.61] and 4.47 [2.37-8.42], respectively. Frailty (hazard ratio [HR] 2.56 [1.63-4.04]) and excessive polypharmacy (HR 1.83 [1.28-2.62]) were independent predictors of mortality. Compared with non-frail people without polypharmacy, frail people with excessive polypharmacy were six times more likely to die during the follow-up period (HR 6.30 [3.09-12.84]).

CONCLUSION

By showing the independent and combined effects of polypharmacy and frailty on mortality risk, this study should reinforce the awareness of clinicians with regard to these factors, rather prevalent in old people.

A systematic review of prescribing criteria to evaluate appropriateness of medications in frail older people

This study systematically reviews the published literature regarding inappropriate prescribing in frail individuals aged at least 65 years. Twenty-five of 466 identified studies met the inclusion criteria. All papers measured some surrogate indicators of frailty, such as performance-based tests, cognitive function and functional dependency. Beers criteria were used in 20 studies (74%) to evaluate inappropriate medication use and 36% (9/25) studies used more than one criterion. The prevalence of inappropriate medications ranged widely from 11 to 92%. Only a few studies reported the relationship between potentially inappropriate medication use and surrogate measures of frailty. These diverse findings indicate the need for a standardized measure for assessing appropriateness of medication in frail older individuals. Prescribing tools should address both medication and patient-related factors such as life expectancy and functional status to minimize inappropriate prescribing in frail individuals.

Potentially Inappropriate Prescribing in Older Patients Discharged From Acute Care Hospitals to Residential Aged Care Facilities

Background: The frequency of prescribing potentially inappropriate medications (PIMs) in older patients remains high despite evidence of adverse outcomes from their use. Little is known about whether admission to hospital has any effect on appropriateness of prescribing. Objectives: This study aimed to identify the prevalence and nature of PIMs and explore the association of risk factors for receiving a PIM. Methods: This was a prospective study of 206 patients discharged to residential aged care facilities from acute care. All patients were at least 70 years old and were admitted between July 2005 and May 2010; their admission and discharge medications were evaluated. Results: Mean patient age was 84.8 ± 6.7 years; the majority (57%) were older than 85 years, and mean (SD) Frailty Index was 0.42 (0.15). At least 1 PIM was identified in 112 (54.4%) patients on admission and 102 (49.5%) patients on discharge. Of all medications prescribed at admission (1728), 10.8% were PIMs, and at discharge, of 1759 medications, 9.6% were PIMs. Of the total 187 PIMs on admission, 56 (30%) were stopped and 131 were continued; 32 new PIMs were introduced. Of the potential risk factors considered, in-hospital cognitive decline and frailty status were the only significant predictors of PIMs. Conclusions: Although admission to hospital is an opportunity to review the indications for specific medications, a high prevalence of inappropriate drug use was observed. The only associations with PIM use were the frailty status and in-hospital cognitive decline. Additional studies are needed to further evaluate this association.