Strategies for reducing polypharmacy in older adults

Polypharmacy Management in the Older Adults: A Scoping Review of Available Interventions

Background: Polypharmacy paves the way for non-adherence, adverse drug reactions, negative health outcomes, increased use of healthcare services and rising costs. Since it is most prevalent in the older adults, there is an urgent need for introducing effective strategies to prevent and manage the problem in this age group. Purpose: To perform a scoping review critically analysing the available literature referring to the issue of polypharmacy management in the older adults and provide narrative summary. Data sources: Articles published between January 2010-March 2018 indexed in CINHAL, EMBASE and PubMed addressing polypharmacy management in the older adults. Results: Our search identified 49 papers. Among the identified interventions, the most often recommended ones involved various types of drug reviews based on either implicit or explicit criteria. Implicit criteria-based approaches are used infrequently due to their subjectivity, and limited implementability. Most of the publications advocate the use of explicit criteria, such as e.g. STOPP/START, Beers and Medication Appropriateness Index (MAI). However, their applicability is also limited due to long lists of potentially inappropriate medications covered. To overcome this obstacle, such instruments are often embedded in computerised clinical decision support systems. Conclusion: Multiple approaches towards polypharmacy management are advised in current literature. They vary in terms of their complexity, applicability and usability, and no "gold standard" is identifiable. For practical reasons, explicit criteria-based drug reviews seem to be advisable. Having in mind that in general, polypharmacy management in the older adults is underused, both individual stakeholders, as well as policymakers should strengthen their efforts to promote these activities more strongly.

A Systematic Review and Meta-analysis of the Factors Associated With Nonadherence and Discontinuation of Statins Among People Aged ≥65 Years

Background

Older individuals (aged ≥65 years) are commonly prescribed statins but may experience a range of barriers in adhering to therapy. The factors associated with poor statin adherence and/or discontinuation among this population have not been comprehensively reviewed.

Methods

We conducted a systematic review to identify English articles published through December 12, 2016 that reported factors associated with nonadherence and/or discontinuation of statins among older persons. Data were pooled via random-effects meta-analysis techniques.

Results

Forty-five articles reporting data from more than 1.8 million older statin users from 13 countries were included. The factors associated with increased statin nonadherence were black/non-white race (odds ratio [OR] 1.66, 95% confidence interval [CI] 1.39-1.98), female gender (OR 1.08, 95% CI 1.03-1.13), current smoker (OR 1.12, 95% CI 1.03-1.21), higher copayments (OR 1.38, 95% CI 1.25-1.52), new user (OR 1.58, 95% CI 1.21-2.07), lower number of concurrent cardiovascular medications (OR 1.08, 95% CI 1.06-1.09), primary prevention (OR 1.49, 95% CI 1.40-1.59), having respiratory disorders (OR 1.17, 95% CI 1.12-1.23) or depression (OR 1.11, 95% CI 1.06-1.16), and not having renal disease (OR 1.09, 95% CI 1.04-1.14). The factors associated with increased statin discontinuation were lower income status (OR 1.20, 95% CI 1.06-1.36), current smoker (OR 1.14, 95% CI 1.06-1.23), higher copayment (OR 1.61, 95% CI 1.53-1.70), higher number of medications (OR 1.04, 95% CI 1.01-1.06), presence of dementia (OR 1.18, 95% CI 1.02-1.36), cancer (OR 1.22, 95% CI 1.11-1.33) or respiratory disorders (OR 1.19, 95% CI 1.05-1.34), primary prevention (OR 1.66, 95% CI 1.24-2.22), and not having hypertension (OR 1.13, 95% CI 1.07-1.20) or diabetes (OR 1.09, 95% CI 1.04-1.15).

Conclusion

Interventions that target potentially modifiable factors including financial and social barriers, patients' perceptions about disease risk as well as polypharmacy may improve statin use in the older population.

Self-medication practice trend among the Brazilian elderly between 2006 and 2010: SABE Study

INTRODUCTION

Self-medication involves the concept of the spontaneous search by the individual for some drug that he or she considers appropriate to solve a health problem. Self-medication practice is little explored by the elderly according to other studies based in population data.

OBJECTIVE

To examine the trends in self-medication practice among the Brazilian elderly between 2006 and 2010.

METHODS

This is a population-based study whose data were obtained from the Health, Well-being and Ageing Study (SABE Study). Thesample consisted of 1,257 elderly people in 2006 and 865 in 2010, who used drugs.

RESULTS

The findings showed self-medication reduction from 42.3% in 2006 to 18.2% in 2010. In both periods, predominant utilized therapeutic classes were those acting on the nervous system (27.9% in 2006, and 29.6% in 2010) and on the alimentary tract and metabolism (25.5% in 2006, and 35.9% in 2010). The most commonly used medicines in 2006 and 2010 were analgesics, anti-inflammatories, and vitamins. There was a tendency to decrease the use of potentially inappropriate medicines between 2006 (26.4%) and 2010 (18.1%). The elderly themselves were the main responsible for the decision about the drug use in 2006 (62.5%) and 2010 (66.5%).

CONCLUSION

Theextent of self-medication practice among the elderly who participated in the study decreased between 2006 and 2010, but the use of medicines that offer risks to health was still reported. Thus, the findings reinforce the importance of monitoring, evaluating, and continuously educating the elderly about risks and benefits of drug consumption, particularly over-the-counter medicines.

Interventions to improve the appropriate use of polypharmacy for older people

BACKGROUND

Inappropriate polypharmacy is a particular concern in older people and is associated with negative health outcomes. Choosing the best interventions to improve appropriate polypharmacy is a priority, hence interest in appropriate polypharmacy, where many medicines may be used to achieve better clinical outcomes for patients, is growing. This is the second update of this Cochrane Review.

OBJECTIVES

To determine which interventions, alone or in combination, are effective in improving the appropriate use of polypharmacy and reducing medication-related problems in older people.

SEARCH METHODS

We searched CENTRAL, MEDLINE, Embase, CINAHL and two trials registers up until 7 February 2018, together with handsearching of reference lists to identify additional studies.

SELECTION CRITERIA

We included randomised trials, non-randomised trials, controlled before-after studies, and interrupted time series. Eligible studies described interventions affecting prescribing aimed at improving appropriate polypharmacy in people aged 65 years and older, prescribed polypharmacy (four or more medicines), which used a validated tool to assess prescribing appropriateness. These tools can be classified as either implicit tools (judgement-based/based on expert professional judgement) or explicit tools (criterion-based, comprising lists of drugs to be avoided in older people).

DATA COLLECTION AND ANALYSIS

Two review authors independently reviewed abstracts of eligible studies, extracted data and assessed risk of bias of included studies. We pooled study-specific estimates, and used a random-effects model to yield summary estimates of effect and 95% confidence intervals (CIs). We assessed the overall certainty of evidence for each outcome using the GRADE approach.

MAIN RESULTS

We identified 32 studies, 20 from this update. Included studies consisted of 18 randomised trials, 10 cluster randomised trials (one of which was a stepped-wedge design), two non-randomised trials and two controlled before-after studies. One intervention consisted of computerised decision support (CDS); and 31 were complex, multi-faceted pharmaceutical-care based approaches (i.e. the responsible provision of medicines to improve patient's outcomes), one of which incorporated a CDS component as part of their multi-faceted intervention. Interventions were provided in a variety of settings. Interventions were delivered by healthcare professionals such as general physicians, pharmacists and geriatricians, and all were conducted in high-income countries. Assessments using the Cochrane 'Risk of bias' tool, found that there was a high and/or unclear risk of bias across a number of domains. Based on the GRADE approach, the overall certainty of evidence for each pooled outcome ranged from low to very low.It is uncertain whether pharmaceutical care improves medication appropriateness (as measured by an implicit tool), mean difference (MD) -4.76, 95% CI -9.20 to -0.33; 5 studies, N = 517; very low-certainty evidence). It is uncertain whether pharmaceutical care reduces the number of potentially inappropriate medications (PIMs), (standardised mean difference (SMD) -0.22, 95% CI -0.38 to -0.05; 7 studies; N = 1832; very low-certainty evidence). It is uncertain whether pharmaceutical care reduces the proportion of patients with one or more PIMs, (risk ratio (RR) 0.79, 95% CI 0.61 to 1.02; 11 studies; N = 3079; very low-certainty evidence). Pharmaceutical care may slightly reduce the number of potential prescribing omissions (PPOs) (SMD -0.81, 95% CI -0.98 to -0.64; 2 studies; N = 569; low-certainty evidence), however it must be noted that this effect estimate is based on only two studies, which had serious limitations in terms of risk bias. Likewise, it is uncertain whether pharmaceutical care reduces the proportion of patients with one or more PPOs (RR 0.40, 95% CI 0.18 to 0.85; 5 studies; N = 1310; very low-certainty evidence). Pharmaceutical care may make little or no difference in hospital admissions (data not pooled; 12 studies; N = 4052; low-certainty evidence). Pharmaceutical care may make little or no difference in quality of life (data not pooled; 12 studies; N = 3211; low-certainty evidence). Medication-related problems were reported in eight studies (N = 10,087) using different terms (e.g. adverse drug reactions, drug-drug interactions). No consistent intervention effect on medication-related problems was noted across studies.

AUTHORS' CONCLUSIONS

It is unclear whether interventions to improve appropriate polypharmacy, such as reviews of patients' prescriptions, resulted in clinically significant improvement; however, they may be slightly beneficial in terms of reducing potential prescribing omissions (PPOs); but this effect estimate is based on only two studies, which had serious limitations in terms of risk bias.

Emergency nurses' knowledge and self-rated practice skills when caring for older patients in the Emergency Department

BACKGROUND

Older adults are high users of emergency department services and their care requirements can present challenges for emergency nurses. Although clinical outcomes for older patients improve when they are cared for by nurses with specialist training, emergency nurses' knowledge and self-assessment of care for older patients is poorly understood.

AIM

To assess emergency nurses' knowledge and self-rating of practice when caring for older patients.

METHODS

A cross-sectional self-report survey of emergency nurses (n=101) in Melbourne, Australia.

RESULTS

Mean scores were 12.7 (SD 2.66) for the 25-item knowledge of older persons questionnaire, and 9.04 (SD 1.80) for the 15-item gerontic health related questions. Scores were unaffected by years of experience as a registered nurse or emergency nurse. More than 80% of nurses rated themselves as 'very good' or 'good' in assessing pain (94.9%), identifying delirium (87.8%), and identifying dementia (82.8%). Areas with a 'poor' ratings were identifying depression (46.5%), assessing polypharmacy (46.5%) and assessing nutrition (37.8%).

CONCLUSIONS

There was variation in knowledge and self-rating of practice related to care of older patients. The relationship between knowledge and self-ratings of practice in relation to actual emergency nursing care of older people and patient outcomes warrants further exploration.

Residential Aged Care Medication Review to Improve the Quality of Medication Use: A Systematic Review

BACKGROUND

Aging is often associated with various underlying comorbidities that warrant the use of multiple medications. Various interventions, including medication reviews, to optimize pharmacotherapy in older people residing in aged care facilities have been described and evaluated. Previous systematic reviews support the positive impact of various medication-related interventions but are not conclusive because of several factors.

OBJECTIVES

The current study aimed to assess the impact of medication reviews in aged care facilities, with additional focus on the types of medication reviews, using randomized controlled trials (RCTs) and observational studies.

METHODS

A systematic searching of English articles that examined the medication reviews conducted in aged care facilities was performed using the following databases: PubMed, CINAHL, IPA, TRiP, and the Cochrane Library, with the last update in December 2015. Extraction of articles and quality assessment of included articles were performed independently by 2 authors. Data on interventions and outcomes were extracted from the included studies. The SIGN checklist for observational studies and the Cochrane Collaboration's tool for assessing risk of bias in RCTs were applied. Outcomes assessed were related to medications, reviews, and adverse events.

RESULTS

Because of the heterogeneity of the measurements, it was deemed inappropriate to conduct a meta-analysis and thus a narrative approach was employed. Twenty-two studies (10 observational studies and 12 controlled trials) were included from 1141 evaluated references. Of the 12 trials, 8 studies reported findings of pharmacist-led medication reviews and 4 reported findings of multidisciplinary team-based reviews. The medication reviews performed in the included trials were prescription reviews (n = 8) and clinical medication reviews (n = 4). In the case of the observational studies, the majority of the studies (8/12 studies) reported findings of pharmacist-led medication reviews, and only 2 studies reported findings of multidisciplinary team-based reviews. Similarly, 6 studies employed prescription reviews, whereas 4 studies employed clinical medication reviews. The majority of the recommendations put forward by the pharmacist or a multidisciplinary team were accepted by physicians. The number of prescribed medications, inappropriate medications, and adverse outcomes (eg, number of deaths, frequency of hospitalizations) were reduced in the intervention group.

CONCLUSION

Medication reviews conducted by pharmacists, either working independently or with other health care professionals, appear to improve the quality of medication use in aged care settings. However, robust conclusions cannot be drawn because of significant heterogeneity in measurements and potential risk for biases.

Medication Use Among Ethnically Diverse Older Adults in the United States

As primary consumers of health care and prescription medication, older adults are more susceptible to potential drug-related adverse effects and medication interactions. With growing diversity among the older adult population, understanding ethnic differences in medication use becomes increasingly important. The current study describes polypharmacy and the occurrence of underprescribing among community-dwelling, low-income individuals 55 and older from four ethnic groups: (a) African American, (b) Afro-Caribbean, (c) European American, and (d) Hispanic American. Results revealed that number of illnesses, income level, and age were three major predictors associated with polypharmacy. No underprescription was identified. Overall, prevalence of polypharmacy was 47.5%. European American individuals had the highest prevalence followed by Hispanic American, African American, and Afro-Caribbean individuals. When caring for older adults from various ethnic groups, nurses should focus their efforts on those who have multiple illnesses and sufficient income to purchase medications to reduce the risk of polypharmacy.

Health outcomes associated with polypharmacy in community-dwelling older adults: a systematic review

OBJECTIVES

To summarize evidence regarding the health outcomes associated with polypharmacy, defined as number of prescribed medications, in older community-dwelling persons.

DESIGN

Systematic review of MEDLINE (OvidSP 1946 to May, Week 3, 2014).

SETTING

Community.

PARTICIPANTS

Observational studies examining health outcomes according to number of prescription medications taken.

MEASUREMENTS

Association between number of medications and health outcomes. Because of the importance of comorbidity as a potential confounder of the relationship between polypharmacy and health outcomes, articles were assessed regarding the quality of their adjustment for confounding.

RESULTS

Of the 50 studies identified, the majority that were rated good in terms of their adjustment for comorbidity demonstrated relationships between polypharmacy and a range of outcomes, including falls, fall outcomes, fall risk factors, adverse drug events, hospitalization, mortality, and measures of function and cognition. However, a number of these studies failed to demonstrate associations, as did a substantial proportion of studies rated fair or poor.

CONCLUSION

Data are mixed regarding the relationship between polypharmacy, considered in terms of number of medications, and adverse outcomes in community-dwelling older persons. Because of the challenge of confounding, randomized controlled trials of medication discontinuation may provide more-definitive evidence regarding this relationship than observational studies can provide.

Back to basics: importance of nursing interventions in the elderly critical care patient

The global population is aging, and with that comes new challenges. Optimal care must be delivered to minimize the time spent in the acute care setting. Avoiding costly complications and focusing on health promotion rather than disease management will be key. Geriatrics is a complex patient population and basic nursing care is essential to prevent unnecessary complications if our health care system is to survive. Our profession is ill prepared to optimally care for this patient population.

A concept analysis of individualized aging

AIM

This analysis sought to define the concept of individualized aging.

BACKGROUND

The growing older adult population and shortage of health professionals with adequate knowledge of their specialized needs will strain the health care system. The National League for Nursing's Advancing Care Excellence for Seniors (ACES) project has addressed this challenge. The ACES framework identifies three unique concepts integral to delivering high quality care. Clarification of these concepts is needed for educational and research purposes.

METHOD

Rogers and Knafl's evolutionary method of concept analysis was used.

RESULTS

The analysis identified two antecedents (past experiences and biological aging processes), three attributes (heterogeneity, living with age-related changes and multiple chronic conditions, and risk for complications), and two consequences (complexity of care over time and variability in health outcomes).

CONCLUSION

Knowledge of the antecedents, attributes, and consequences of individualized aging will allow health care providers to improve the care of older adults.

Crushing or splitting medications: unrecognized hazards

Given the high use and the cost of medications in the current economy, one way older adults may save money on prescription costs is to split some of their medications in half. However, not all oral medications can be split. Splitting inappropriate medications such as extended-release tablets can be harmful and in some instances very dangerous. In addition to splitting medications, older adults who have difficulty swallowing pills may resort to crushing the medication for ease of administration. This option is also problematic and potentially harmful if the medication is not intended to be crushed. Clinicians managing the care of older adults need to discuss medication administration, clarify the dosing schedule, and clearly indicate the route of administration. Patients should be cautioned not to split or crush a medication without checking with the health care provider or pharmacist.

Polypharmacy and food-drug interactions among older persons: a review

Polypharmacy is generally defined as the use of 5 or more prescription medications on a regular basis. The average number of prescribed and over-the-counter medications used by community-dwelling older adults per day in the United States is 6 medications, and the number used by institutionalized older persons is 9 medications. Almost all medications affect nutriture, either directly or indirectly, and nutriture affects drug disposition and effect. This review will highlight the issues surrounding polypharmacy, food-drug interactions, and the consequences of these interactions for the older adult.

Are gerontological nurses apathetic about apathy in older adults

Despite its serious health consequences, apathy in older adults is often underrecognized by gerontological nurses and other health care professionals. Within this article, we discuss what apathy is and present a review of the literature and research. Two frameworks emerging from the literature search-one regarding rehabilitation and the other illness-are introduced as ways in which apathy may be conceptualized and addressed. Using these frameworks, implications for gerontological nurses are outlined.