Frequency of and factors related to pro re nata (PRN) medication use in aged care services

Background

Little is known about the contribution of ‘pro re nata’ (PRN) medications to overall medication burden in residential aged care services (RACS).

The influence of the Pharmaceutical Benefits Scheme (PBS) on inappropriate prescribing in Australian nursing homes

Objectives: To determine the prevalence of inappropriate prescribing, defined by applying modified Beers’ criteria, and to examine the influence of the Pharmaceutical Benefits Scheme (PBS), Australia’s national scheme for subsidising medicines, on inappropriate prescribing.Methods: Cross-sectional survey of nursing home records, including 7-days data from medication charts.Setting: Fiveteen randomly selected nursing homes (998 residents) in Southeast Queensland and Northern New South Wales, Australia.Main outcome measures: The prevalence of inappropriate prescribing as defined by modified Beers’ criteria and its correlation with PBS restrictions.Results: 18.5% of residents were ordered one or more inappropriate medications, and 1.5% of residents were ordered two or more. The level of PBS restriction and the percentage of residents ordered a medication were highly correlated (ρ = -0.87, P<0.001). Medications in Beers’ criteria that were not listed (subsidised) on the PBS were not ordered for any resident. PBS medicines with subsidies restricted to certain populations or indications were ordered for 0% to 0.1% of residents. Dextropropoxyphene, diazepam, amitriptyline and methyldopa were the only medications in Beers’ criteria prescribed to more than 0.5% of residents. Dextropropoxyphene was only subsidised for war veterans, with a caution warning of its potential to cause drug dependence, while diazepam, amitriptyline and methyldopa were listed on the PBS without any subsidy restrictions.Conclusion: Increases in the level of PBS restriction were associated with decreases in the prevalence of inappropriate prescribing, The targeting of drug subsidies to reduce inappropriate prescribing warrants further investigation.     

Quality of psychopharmacological medication use in nursing home residents

BackgroundDespite well-documented evidence regarding antipsychotic use in older adults residing in nursing homes (NHs), there is a lack of evidence-based use and quality benchmarks for other psychopharmacological medications (PPMs), including antidepressants, anxiolytics, and sedative-hypnotics.ObjectiveTo estimate the prevalence and patterns of use of PPMs and to measure the quality of PPM use.MethodsUsing a 5% random sample of 2007 Medicare claims data linked to the Minimum Data Set 2.0, this cross-sectional study identified a nationally representative sample of 69,832 NH residents with ≥3 months of institutionalization. This study measured 1-year prevalence and quality of PPM use, as assessed by indication, dose, and duration of use defined and operationalized according to the current Centers for Medicare and Medicaid Services Unnecessary Medication Guidance for Surveyors and relevant practice guidelines.ResultsOver two-thirds of residents (72.1%, n=50,349) used ≥1 PPM in 2007, with the highest prevalence seen in antidepressants (59.4%), and the lowest in anxiolytics (8.9%). Almost two-thirds (61.0%) of PPM users used ≥2 PPM classes. Compared to other PPM therapeutic classes, antipsychotic users had greatest evidence of guideline adequate use by indication (95.8%) and dose (78.7%). In addition, longer duration of adequate treatment was observed among antipsychotic users (mean = 208 days, standard deviation [SD] = 118) as compared to anxiolytic (mean = 159 days, SD = 118) and sedative-hypnotic users (mean = 183 days, SD = 117).ConclusionsThis study found that PPM use remains highly prevalent among long-stay Medicare NH residents. While antipsychotic use remained high (31.5%), little antipsychotic use was deemed inadequate by indication. However, the 1-year prevalence of use, dose, and duration of use of other PPMs remain high and potentially inadequate. Practitioners and policy-makers should heed both the high use and lower prescribing quality of antidepressants, anxiolytics, and sedative-hypnotics in NH residents.     

Evolution of potentially inappropriate medication use in nursing homes: Retrospective analysis of drug consumption data

BackgroundThe use of potentially inappropriate medication (PIMs) is frequent in nursing homes (NHs), and leads to worsened health outcomes for their residents. Numerous initiatives to curb their use have been launched. Most studies of PIMs use in NHs, however, focused on their prevalence, and provide few insights on the evolution of their use.ObjectiveThe objective of this analysis is to measure the evolution of PIMs use in the nursing NHs of western Switzerland taking part in an integrated pharmacy service (IPS).MethodsDrug consumption data from 166 NHs were collected for 2014 to 2018, through the monitoring of the IPS. These data were cross-referenced with validated PIMs lists (Beers’ list and Norwegian General Practice-Nursing Home, NORGEP-NH) to compute the number of potentially inappropriate defined daily doses per average resident (DDD/res) in each NH. Linear mixed-effects models were used to assess the evolution of PIMs use over time, following the NORGEP-NH classification of PIMs and the drug classes involved.ResultsIn 2018, the number of DDD/res was 7.3 (SD 1.9); of those, 2.2 (SD 0.8) were potentially inappropriate. Psycholeptics, psychoanaleptics and antihypertenseives were the most-used PIMs. Between 2014 and 2018, the number of potentially inappropriate DDD/res decreased by 0.03 per year (CI₉₅ [?0.05; ?0.01]).ConclusionsThis study complements others that focused on the prevalence of PIMs use in NHs. The statistically significant reduction in the use of PIMs is an encouraging sign, but is probably not clinically meaningful for NH residents. With the growing concerns of the potential harms of these drugs, more specific interventions and implementation strategies need to be developed to help clinicians further reduce their use in NHs.     

Assessing the effects of an intervention by a pharmacist on prescribing and administration of hypnotics in nursing homes

Introduction: We have previously reported sub optimal use of hypnotics in geriatric institutions. In the present study we examined the intervention by a pharmacist on the prescribing and administration of hypnotics in nursing homes. Thus a follow up study was performed in 5 nursing homes included in the previous study.Method: In the period between the two surveys the pharmacist provided drug information on the rational use of hypnotics, both written and verbal, to the staff of the institutions. Data on the administration of hypnotics was obtained from the Cardex system in the institutions. Data were compared to a control group in other nursing homes, where no intervention was carried out.Results: Although the population was older in 2000 than in 1995, the proportion of patients using hypnotics (24%) was similar. Use of benzodiazepines was reduced from 81% to 40%, use of long acting benzodiazepines was reduced from 62% to 22%, and use of shortacting hypnotics (zopiclone, zolpidem) increased from 9% to 53%. Furthermore, hypnotics administered before 9 p.m. were reduced from 40% to 14%, and the time of administration showed less variation than before. In the control population we also observed the use of short acting hypnotics in favour of benzodiazepines, similar to the results in the 5 institutions. However, in this population a significantly higher proportion of patients used hypnotics, used more than 1 hypnotic and the hypnotics were administered earlier in the evening.Conclusion: The results demonstrate an important effect of written and verbal drug information provided by a pharmacist to improve the prescribing and administration on the use of hypnotics in nursing homes.     

Drug utilisation in Dutch nursing homes

Objective: To quantify and evaluate drug utilisation in a sample of Dutch nursing homes. Methods: A retrospective analysis of computerised medication data of 2355 residents aged 65 years and over from six nursing homes in the Netherlands was performed. For each therapeutic drug group, the number of users was determined. The ten therapeutic groups used most frequently were investigated further. For these, patient characteristics, use of therapeutic subgroups, the average daily dosages and the chronicity of drug use were determined. Chronicity was expressed as the percentage of treatment days divided by the number of residents' days in the nursing home. Results: During the study period, 89%, 77% and 56% of the study population used a drug from the anatomical therapeutic chemical (ATC) main group N (nervous system), A (alimentary tract and metabolism) and C (cardiovascular system), respectively. Eight of the ten therapeutic drug groups prescribed most frequently were used for more than 50% of the time. In particular, psycholeptic drugs, diuretics and laxatives were used chronically (83%, 81%, and 80% of the nursing home stay, respectively). Except for a few drug groups, such as laxatives and diuretics, the prescribed daily dosages were relatively low. Twenty-eight percent of the residents received loop diuretics; these were prescribed in relatively high dosages. Conclusion: Drug utilisation in the nursing homes was high and many drugs were used chronically. In view of the risk of possible adverse effects and drug–drug interactions, the prescribing and dosage of psycholeptic drugs, laxatives, loop diuretics and ulcer-healing drugs should be re-evaluated, carefully. Received: 11 March 1999 / Accepted in revised form: 19 September 1999     

Trajectories of pro re nata (PRN) medication prescribing and administration in long-term care facilities

BackgroundLittle is known about changes in pro re nata (PRN) medication prescribing and administration in residential aged care facilities (RACFs) over time.ObjectiveTo determine the prevalence and factors associated with PRN medication administration in RACFs and examine changes over 12-months.MethodsSecondary analyses utilizing data from the SIMPLER randomized controlled trial (n = 242 residents, 8 RACFs) was undertaken. PRN medication data were extracted from RACF medication charts. Factors associated with PRN medication administration in the preceding week were explored using multivariable logistic regression.ResultsAt baseline, 211 residents (87.2%) were prescribed ≥1 PRN medication, with 77 (36.5%) administered PRN medication in the preceding week. PRN administration was more likely in non-metropolitan areas, and less likely among residents with more severe dementia symptoms and greater dependence with activities of daily living. No significant differences in overall PRN prescribing or administration in 162 residents alive at 12-month follow-up were observed.ConclusionsDespite being frequently prescribed, the contribution of PRNs to overall medication use in RACFs is small. PRN prescribing and administration was relatively static over 12-months despite likely changes in resident health status over this period, suggesting further exploration of PRN prescribing in relation to resident care needs may be warranted.     

Controlled withdrawal of selective serotonin reuptake inhibitor drugs in elderly patients in nursing homes with no indication of depression

Objective The aim of the investigation was to study the effects of withdrawing selective serotonin reuptake inhibitor (SSRI) drugs in nursing home patients, who had no documented diagnosis or symptoms of depression.Setting The setting of the study was in 11 nursing homes in the county of Stockholm, Sweden.Participants Participants were patients without dementia or history of depression who had received treatment with SSRI drugs for more than 6 months and who had no indications of anxiety disorder or major depressionDesign The included patients (n=70) were randomized to either the intervention group (withdrawal of SSRI) or the control group (no change in treatment), 35 patients to each group.Main outcome measures The patients were subjected to assessment using the following instruments: Montgomery-Åsberg depression rating scale, global assessment for functioning, health index and a symptom assessment form. Assessment was made at the start of the study and at the 3-month and 6-month follow-ups.Results We found no significant difference between the intervention and control groups in any outcome measure.Conclusion Treatment with SSRI drugs in patients without clinical major depression or anxiety disorder is often unjustified and should be discontinued.     

Medication utilization and patient information in homes for the aged

Summary A random cross-sectional sample of 198 residents was taken from a convenience sample of 20 Flemish, community-based nursing homes for the aged. Twenty trained interviewers reviewed the medication list of these residents and interviewed the nurses responsible for their daily care to assess their activities of daily living (ADL) and cognitive status. Direct interview was possible of 128 residents (65 %); communication with the other 70 residents was impossible because of dementia (55 patients) or communication problems, such as aphasia and deafness (15 patients). An average of 4.5 different medicines was mentioned on the medication lists of the 198 residents. Drug use increases with age but stabilises after the age of 80 y. Medicines are ordered from local community pharmacies and are delivered to the ward rooms in original drug dispensing packs. The nursing staff is responsible for distribution inside the institution. Nursing personnel read the inserts of the medicines given to 98 % of the residents and keep the inserts of 77 % in the nursing office. Only 11 % of the residents maintained some autonomy in ordering, keeping and taking their medication, although 42 % were evaluated by the nurses as functionally and cognitively fit. Only 4 % of the 128 residents able to respond to an interview had a notion of the potential adverse effects of their medication; the two most important sources of information about medicines mentioned by those residents were the general practitioner and the nursing personnel; 4 % mentioned relatives and friends, or the pharmacist, as information sources.     

Deprescribing in nursing homes: Protocol for nested,randomised controlled hybrid trials of deprescribing interventions

IntroductionPolypharmacy and the use of potentially inappropriate medication (PIMs) are frequent among nursing home (NH) residents, and are associated with adverse health outcomes like falls, hospitalisation and death. Deprescribing has been proposed as a way to curtail both problems; however, the best way to implement deprescribing and its real impact are still unclear. This article describes nested trials of two consecutive deprescribing interventions, the first at the NH level, and the second at the resident level.Methods and analysisThe first intervention (QC-DeMo) will be a deprescribing module to be carried out in existing interprofessional quality circles in NHs, with the goal to develop a NH-wide deprescribing consensus. Its effects will be evaluated on the use of PIMs and on patient safety outcomes such as death, hospitalisation and falls. All NHs in the cantons of Vaud and Fribourg with an integrated pharmacy service will be eligible.The second intervention (IDeI), at the resident level, will be a deprescribing-focused medication review, resulting in the implementation of a deprescribing plan. Its effects will be evaluated on the use of PIMs and chronic medications, and on quality of life. This second trial will take place in the NHs allocated to the intervention group of the first trial. All residents of these NHs over 65 years old, living in the NH for at least 4 months, and taking 5 or more medications will be eligible to participate.Both trials will be hybrid effectiveness and implementation trials, aiming to understand the implementation process for the interventions, and to identify barriers and facilitators.Ethics, registration and fundingBoth trials were approved by the relevant ethics committee, registered on ClinicalTrials.gov (QC-DeMo: NCT03688542; IDeI: NCT03655405), and funded by the Swiss National Fund for Scientific Research.     

Research on medication use in the neonatal intensive care unit

Introduction: Research on medication use aims at assessing how much of current pharmacotherapy is rational. In neonates, this is hampered by extensive off-label drug use and limited knowledge.

Areas covered: We report on medication use research and have conducted a systematic review of observational studies on medication use to provide an updated overview on characteristics, objectives, methods, and patterns in hospitalized neonates. Moreover, a review on aspects of medication use for opioids, anti-epileptics, gastric acid-related disorders and respiratory stimulants with emphasis on trends and impact of interventions is presented, illustrating how research on medication use can contribute to improved neonatal pharmacotherapy and more focused research. Medication use reports describe patterns and provide signals on irrational use, benchmarking, or can guide research priorities. Moreover, this may generate information on how neonatal health topics and their pharmacotherapy are handled over time or across regions.

Expert opinion: Research on medicine utilization is relevant, since it will inform us on aspects like trends, variability, or about the impact and pattern of implementation of guidelines in neonates. Further progress necessitates to merge datasets on medication use with clinical characteristics, and perinatal drug use remains an area in need of additional research.     

Frequency and risk factors of potentially inappropriate medication use in a community-dwelling elderly population: results from the 3C Study

Objective To estimate the frequency of potentially inappropriate medication use among community-dwelling elderly subjects and to identify socio-demographic factors associated with this use.Methods Data were collected in the Three-City Study, a French longitudinal study on vascular factors and cognitive decline. The study population was composed of 9,294 subjects aged 65 years and older, living in the community. Inappropriate medication use was assessed using a list derived from the Beers criteria by a panel of French experts.Results Nearly 40% of the participants used at least one potentially inappropriate medication: 23.4% used cerebral vasodilators, 9.2% long-acting benzodiazepines and 6.4% drugs with anticholinergic properties. Excluding cerebral vasodilators from the list, the frequency of potentially inappropriate medication use was 21.7%. This use was significantly more frequent among women, older subjects and poorly educated subjects. Adjusted analyses showed that these associations could not be explained by a confounding effect of medical factors. Compared with 13.0% of men with a high educational level, 27.9% of women with a low educational level used at least one potentially inappropriate medication (odds ratio=2.0; 95% confidence interval: 1.7–2.3).Conclusion This study is the first attempt to evaluate the frequency of potentially inappropriate medication use in the elderly French population. Female gender and low socio-economic characteristics reduced the chances of receiving optimal pharmacotherapy. The proportion of elderly subjects receiving potentially inappropriate medication was higher than shown in previous studies. This is mainly explained by differences in the use of cerebral vasodilators.