Medicine self-administration errors in the older adult population: A systematic review

BackgroundMedicine self-administration errors (MSEs) are a longstanding issue in patient safety. Although many studies have examined MSEs in the general adult population, the MSEs that occur specifically in the older adult population and their contributing factors are not well understood.ObjectiveTo identify the types of MSEs and their contributing factors among community-dwelling older adults.MethodsPubMed, Medline, Embase, CINAHL and Scopus were searched for primary studies published between January 1, 2014 and June 12, 2020. Studies which reported MSEs among community-dwelling older adults (≥50 years of age) and written in English were included in the review.ResultsEleven studies met the inclusion criteria. The most commonly reported MSE was a dosing error, followed by missed dose, wrong medicine, incorrect administration methods, wrong administration time and wrong frequency. Seven of the included studies also described factors which contributed to the occurrence of MSEs. The most commonly reported factor contributing to MSEs was complex treatment regimens due to use of multiple medicines. Other factors identified included cognitive decline, decline in physical abilities, lack of social support, lack of knowledge about treatment regimens and negative attitudes and beliefs towards medicines. In most cases, MSEs occurred when multiple contributing factors were present.ConclusionThe literature highlights a number of types of MSEs and their contributing factors which occur in the older adult population. Given that many MSEs are preventable, future research is needed into how pharmacists can support the identification and mitigation of factors contributing to MSEs in the older adult population.     

Quality management tools applied to drug dispensing in hospital pharmacy: A scoping review

BackgroundThe process of drug dispensing in hospital pharmacies (HPs) is one of the essential steps in health care, but presents high complexity due to the diversity of professionals and clinical conditions of patients. Therefore, the use of quality management tools may be an important strategy to improve patient safety and to achieve institutional goals, including user satisfaction and reduction of costs.ObjectiveThis scoping review sought to describe quality management tools applied to drug dispensing in HPs; quality indicators used and results obtained.MethodsThis scoping review was developed according to the Cochrane methodology and reported according to Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews (PRISMA), being registered at Open Science Framework (https://doi.org/10.17605/OSF.IO/KP3AJ). The searches were performed in electronic databases Medline, Cochrane Library, Embase, CINAHL and Lilacs, with no limit of date or language. Studies on quality management tools applied to drug dispensing in HPs were assessed for eligibility, extracted and compiled in a narrative form.ResultsFrom the 1318 studies identified, 11 were eligible for this review. The quality management tools more frequently reported were those related to the definition of root cause (n = 4; 36%), e.g. DMAIC (Define, Measure, Analyze, Improve and Control) and the cause and effect diagram; tools for risk management, such as FMEA (Failure Mode and Effect Analysis) and its variations (n = 4; 36%); and tools related to the LSS (LEAN Six Sigma) principles (n = 3; 27%). The quality indicators used to monitor the results were, mainly, work team satisfaction, time spent performing activities and reduction of errors and costs.ConclusionsThe use of quality management tools showed a tendency to improve the indicators of the drug dispensing process in HPs, such as increase in work team satisfaction, reduction of time spent performing activities, errors and costs, improving the quality of services.     

Custom and practice: A multi-center study of medicines reconciliation following admission in four acute hospitals in the UK

BackgroundMany studies have highlighted the problems associated with different aspects of medicines reconciliation (MR). These have been followed by numerous recommendations of good practice shown in published studies to decrease error; however, there is little to suggest that practice has significantly changed. The study reported here was conducted to review local medicines reconciliation practice and compare it to data within previously published evidence.ObjectivesTo determine current medicines reconciliation practice in four acute hospitals (A–D) in one region of the United Kingdom and compare it to published best practices.MethodQuantitative data on key indicators were collected prospectively from medical wards in the four hospitals using a proforma compiled from existing literature and previous, validated audits. Data were collected on: i) time between admission and MR being undertaken; ii) time to conduct MR; iii) number and type of sources used to ascertain current medication; and iv) number, type and potential severity of unintended discrepancies. The potential severity of the discrepancies was retrospectively dually rated in 10% of the sample using a professional panel.ResultsOf the 250 charts reviewed (54 Hospital A, 61 Hospital B, 69 Hospital C, 66 Hospital D), 37.6% (92/245) of patients experienced at least one discrepancy on their drug chart, with the majority of these being omissions (237/413, 57.1%). A total of 413 discrepancies were discovered, an overall mean of 1.69 (413/245) discrepancies per patient. The number of sources used to reconcile medicines varied with 36.8% (91/247) only using one source of information and the patient being used as a source in less than half of all medicines reconciliations (45.7%, 113/247). In three out of the four hospitals the discrepancies were most frequently categorized as potentially requiring increased monitoring or intervention.ConclusionThis study shows higher rates of unintended discrepancies per patient than those in previous studies, with omission being the most frequently occurring type of discrepancy. None of the four centers adhered to current UK guidance on medicines reconciliation. All four centers demonstrated a strong reliance on General Practitioner (GP)-based sources. A minority of discrepancies had the potential to cause injury to patients and to increase utilization of health care resources. There is a need to review current practice and procedures at transitions in care to improve the accuracy of medication history-taking at admission by doctors and to encourage pharmacy staff to use an increased number of sources to validate the medication history. Although early research indicates that safety can be improved through patient involvement, this study found that patients were not involved in the majority of reconciliation encounters.     

Adherence to controller therapy for chronic obstructive pulmonary disease: a review

Abstract

Objective:

While several studies have examined adherence to controller medications for the treatment of COPD, few systematic reviews have taken the translational step to identifying important and necessary areas for further research. The objective of this study was to review data on the outcomes of adherence to various controller therapies in patients with COPD in an effort to help prescribers understand adherence properties for each therapy.     

Olanzapine: a critical review of recent literature

The purpose of this review is to critically review the current literature on olanzapine with an emphasis on emergent themes and key findings in the use of this agent for the treatment of mood disorders and schizophrenia. New information continues to emerge on the impact of olanzapine on schizophrenia and on aspects of the course of mood disorders. There are also continued efforts to understand, predict and manage the side-effect risk with olanzapine.     

The pneumatic syringe: a simple apparatus for self-administration of drugs by rats

Drug solution is delivered by a syringe operated by a pneumatic cylinder. Recommended delivery volumes are from 10 to 200 microliter. A solid-state control unit is described which can operate two syringes (drug injection and flush), has outputs for recording responses and injections, and can be programmed to provide several schedules of reinforcement. All components are readily commercially available.     

Economic evaluations of varicella vaccination programmes: a review of the literature

Chickenpox infections are generally mild but due to their very high incidence among healthy children they give rise to considerable morbidity and occasional mortality. With the development of a varicella vaccine in the early 1970s and its progressive licensing in many countries, interest in the efficiency of varicella immunisation programmes grew. The objective of this review was to discuss the methodological aspects and results of published economic evaluations of varicella vaccination. From this, we attempted to make recommendations. A computerised search was carried out; 17 full economic evaluations of varicella vaccination were retrieved. The review identified the methodological divergences and similarities between the articles in four areas: study design, epidemiological data, economic data and model characteristics. We assessed to what extent the applied methods conform to general guidelines for the economic evaluation of healthcare interventions and compared the studies' results. The desirability of a universal vaccination programme depends on whose perspective is taken. Despite variability in data and model assumptions, the studies suggest that universal vaccination of infants is attractive to society because large savings occur from averted unproductive days for parents. For the healthcare payer, universal vaccination of infants does not generate savings. Vaccination of susceptible adolescents has been proposed by some authors as a viable alternative; the attractiveness of this is highly dependent on the negative predictive value of anamnestic screening. Targeted vaccination of healthcare workers and immunocompromised individuals appears relatively cost effective. Findings for other target groups are either contradictory or provide insufficient evidence for any unequivocal recommendations to be made. High sensitivity to vaccine price was reported in most studies. This review highlights that some aspects of these studies need to be further improved before final recommendations can be made. First, more transparency, completeness and compliance to general methodological guidelines are required. Second, because of the increasing severity of varicella with age, it is preferable and in some cases essential to use dynamic models for the assessment of universal vaccination strategies. Third, most studies focused on the strategy of vaccinating children only while their results depended heavily on disputable assumptions (regarding vaccine effectiveness and impact on herpes zoster). Since violation of these assumptions could have important adverse public health effects, we suggest pre-adolescent vaccination as a more secure alternative. This option deserves more attention in future analyses.     

我院药学部门三级处方点评模式

为提高处方质量,促进合理用药,保障医疗安全,探索建立适合我院药学部门的处方点评模式。在《处方管理办法》、《医院处方点评管理规范（试行）》的指导下,我院药房药师重在进行处方审核,参与处方点评;临床药师重在进行处方（医嘱单）点评及对药房药师点评进行再评价;处方点评工作小组复查点评结果,向医院提出改进措施。通过处方点评制度提高药房药师的审方能力,保证处方点评的公正合理,有利于处方的持续质量改进。     

Heroin self-administration under a second-order schedule of reinforcement: acquisition and maintenance of heroin-seeking behaviour in rats

RATIONALE: Second-order schedules of heroin self-administration provide a method of measuring heroin-seeking behaviour independently of the effects of the drug on motor behaviour and of investigating the role of heroin-associated stimuli in such heroin-seeking behaviour. OBJECTIVES: These experiments aimed to establish a second-order schedule of heroin self-administration in rats, similar to that already established in this laboratory for cocaine self-administration and to investigate the role of discrete heroin-associated stimuli in the maintenance of heroin-seeking behaviour under a second-order schedule of reinforcement. METHODS: Heroin i.v. self-administration (0.04 mg/infusion) was initially contingent upon a lever press, and each infusion was paired with presentation of a 20-s light-conditioned stimulus (CS). Following acquisition of heroin self-administration, the response requirement was progressively increased so that, ultimately, responding was maintained under a fixed interval (FI) 15 min [fixed ratio (FR)5:S] second-order schedule. The effects of varying the dose of heroin (0.01 mg and 0.08 mg/infusion) and pre-treatment with the mu-opiate receptor antagonist, naloxone, on responding under a FI15(FR5:S) schedule were investigated. In addition, the role of the heroin-associated CS on responding was assessed by measuring the effects of omitting the CS during heroin-seeking behaviour and during extinction of responding, as well as the effect of CS presentation on the reinstatement of heroin-seeking behaviour following extinction. RESULTS: A second-order schedule of heroin self-administration was established. There were no clear effects on heroin-seeking behaviour of increasing or decreasing the dose of heroin. Although no effect of naloxone pre-treatment was seen on heroin-seeking behaviour during the first, drug-free interval of responding, an extinction-like pattern of responding was seen in that interval during subsequent sessions. Omission of the light CS resulted in a reduction in levels of responding for i.v. heroin, indicating its role in maintaining heroin-seeking behaviour. However, under extinction conditions, response-contingent CS presentations did not affect the rate of extinction, nor did non-contingent presentations of the CS following extinction reinstate heroin-seeking behaviour. CONCLUSIONS: These experiments have established a method of measuring heroin-seeking behaviour in rats by adopting a second-order schedule of i.v. heroin self-administration. The results indicate a relatively weak impact of discrete, heroin-associated cues on heroin-seeking behaviour relative to cocaine-seeking behaviour studied under similar conditions.     

The effectiveness of medication reconciliation to prevent medication error: A systematic review and meta-analysis

BackgroundThe impact of medication reconciliation (MR) in low-middle-income countries, including Thailand, may differ from other developed countries.ObjectiveTo evaluate the effect of medication reconciliation (MR) on the reduction of medication error in Thailand.MethodsA systematic search was conducted in the following databases: PubMed, CENTRAL, CINAHL, Scopus, Thai Journals Online, Thai index Medicus, Thai Medical Index, and Health Science Journal in Thailand from inception to January 2018. Studies that evaluated the effect of MR compared to usual care within hospitals in Thailand and reported the occurrence of medication error were included. Meta-analyses were performed using random-effects model.ResultsOf the 107 articles retrieved, 7 articles involving 1581 patients were included in quantitative synthesis. Three of the included studies were randomized controlled trials (RCT). Overall, the risk of medication error in patients who received MR in all transitions of care was 75% lower than those receiving usual care (RR 0.25; 95%CI 0.15–0.43). The effect on the reduction of medication error appeared higher when MR was provided to ambulatory patients (RR 0.17 [95%CI 0.04–0.80] compared with hospitalized patients during admission (RR 0.37 [95%CI 0.20–0.65]) and discharge (RR 0.27 [95%CI 0.17–0.43]). Effects on reducing medication error was greater when MR was provided in secondary care hospitals compared with primary care hospitals both during admission (RR 0.49 [95%CI, 0.34–0.69] vs RR 0.25 [95%CI, 0.05–1.26]), and discharge transition (RR 0.19 [95%CI, 0.09–0.39] vs RR 0.30 [95%CI, 0.12–0.79]).ConclusionOverall, current evidence indicates that the provision of MR in Thailand is effective in reducing medication errors in all transitions of care. However, to promote patient safety, appropriate strategies should be developed to support MR in specific transition of care and hospital setting so patients can benefit most from this service.     

The Frequency and Potential Causes of Dispensing Errors in a Hospital Pharmacy

Objectives: To determine the frequency and types of dispensing errors identified both at the final check stage and outside of a UK hospital pharmacy, to explore the reasons why they occurred, and to make recommendations for their prevention.Method: A definition of a dispensing error and a classification system were developed. To study the frequency and types of errors, pharmacy staff recorded details of all errors identified at the final check stage during a two-week period; all errors identified outside of the department and reported during a one-year period were also recorded. During a separate six-week period, pharmacy staff making dispensing errors identified at the final check stage were interviewed to explore the causes; the findings were analysed using a model of human error.Main outcome measures: Percentage of dispensed items for which one or more dispensing errors were identified at the final check stage; percentage for which an error was reported outside of the pharmacy department; the active failures, error producing conditions and latent conditions that result in dispensing errors occurring.Results: One or more dispensing errors were identified at the final check stage in 2.1% of 4849 dispensed items, and outside of the pharmacy department in 0.02% of 194,584 items. The majority of those identified at the final check stage involved slips in picking products, or mistakes in making assumptions about the products concerned. Factors contributing to the errors included labelling and storage of containers in the dispensary, interruptions and distractions, a culture where errors are seen as being inevitable, and reliance on others to identify and rectify errors.Conclusion: Dispensing errors occur in about 2% of all dispensed items. About 1 in 100 of these is missed by the final check. The impact on dispensing errors of developments such as automated dispensing systems should be evaluated.     

Development of a quality use of medicines coding system to rate clinical pharmacists'' medication review recommendations

Objective: To develop a 'quality use of medicines' coding system for the assessment of pharmacists' medication reviews and to apply it to an appropriate cohort.Method: A 'quality use of medicines' coding system was developed based on findings in the literature. These codes were then applied to 216 (111 intervention, 105 control( veterans' medication profiles by an independent clinical pharmacist who was supported by a clinical pharmacologist with the aim to assess the appropriateness of pharmacy interventions. The profiles were provided for veterans participating in a randomised, controlled trial in private hospitals evaluating the effect of medication review and discharge counselling. The reliability of the coding was tested by two independent clinical pharmacists in a random sample of 23 veterans from the study population.Main outcome measure: Interrater reliability was assessed by applying Cohen's kappa score on aggregated codes.Results: The coding system based on the literature consisted of 19 codes. The results from the three clinical pharmacists suggested that the original coding system had two major problems: (a( a lack of discrimination for certain recommendations e.g. adverse drug reactions, toxicity and mortality may be seen as variations in degree of a single effect and (b( certain codes e.g. essential therapy were in low prevalence. The interrater reliability for an aggregation of all codes into positive, negative and clinically nonsignificant codes ranged from 0.49–0.58 (good to fair(. The interrater reliability increased to 0.72–0.79 (excellent( when all negative codes were excluded. Analysis of the sample of 216 profiles showed that the most prevalent recommendations from the clinical pharmacists were a positive impact in reducing adverse responses (31.9%(, an improvement in good clinical pharmacy practice (25.5%( and a positive impact in reducing drug toxicity (11.1%(. Most medications were assigned the clinically nonsignificant code (96.6%(. In fact, the interventions led to a statistically significant difference in pharmacist recommendations in the categories; adverse response, toxicity and good clinical pharmacy practice measured by the quality use of medicine coding system.Conclusion: It was possible to use the quality use of medicine coding system to rate the quality and potential health impact of pharmacists' medication reviews, and the system did pick up differences between intervention and control patients. The interrater reliability for the summarised coding system was fair, but a larger sample of medication regimens is needed to assess the nonsummarised quality use of medicines coding system.     

Antibiotics and breast-feeding: a critical review of the literature

Continuous breast-feeding, an integral component of the postpartum period, is often threatened upon maternal initiation of antibiotics. The real risk of antibiotic use while breast-feeding must be carefully analysed with regard to all the variables that influence the extent of antibiotic distribution into breast milk, including breast milk composition, physicochemical properties of the antibiotic (molecular weight, lipid solubility, pH, protein binding), length of feeding, and maternal disposition. In addition, infant disposition, including ability to absorb, metabolize, eliminate, and tolerate any amounts of antibiotic, must also be considered prior to maternal administration of antibiotic. The milk to plasma (M/P) ratio is a frequently quoted parameter used to predict drug distribution into breast milk. However, its utility is questionable and often fraught with misinterpretation. An alternative approach when the amount of antibiotic concentration in breast milk is known (through clinical trials) is to calculate an estimated or expected infant drug exposure factoring in known/expected milk consumption, drug concentration and bioavailability. In this review, the following antibiotic classes and current literature regarding their distribution into breast milk are critically reviewed: beta-lactam antibiotics, fluoroquinolones, sulfonamides, macrolides, aminoglycosides, tetracyclines, nitrofurantoin, metronidazole, vancomycin, clindamycin and chloramphenicol. In the majority of instances, these antibiotics do not distribute into breast milk in sufficient concentrations to be of any clinical consequence in the breast-feeding infant.     

Medicaid formularies: a critical review of the literature.

Studies on the impact of restricted Medicaid formularies were reviewed to assess whether other drugs on the formulary were substituted for restricted drugs, the cost of the substitutes, whether the substitutes were therapeutically appropriate, whether restricted drugs continued to be prescribed, what incremental administrative costs accompanied restrictions, what indirect costs occurred and how the cost-effectiveness of pharmaceuticals impinged on the total cost of illness. The assumption that restriction of specific drugs results in savings in the drug costs proportional to prior usage was shown to be questionable, numerous studies found alternate formulary drugs to the restricted drugs being prescribed, or patients were paying out-of-pocket for denied drugs. There was a tendency for alternate drugs to be more expensive. Little information exists as to the incremental administrative costs of restricted formularies or the therapeutic appropriateness of substituted drugs. One study suggests that major shifts in costs occur due to restrictive formularies through substitution of more expensive services such as hospitalization in lieu of pharmaceuticals. It is concluded that restricting formularies leads to dynamic changes in the total Medicaid program of a complex and often costly nature. Plans to implement formulary restrictions require considerable careful thought.     

Heroin self-administration: I. Incubation of goal-directed behavior in rats

This study used heroin self-administration to investigate incubation of goal-directed heroin-seeking behavior following abstinence. Male Sprague-Dawley rats self-administered heroin on a fixed ratio 10 (FR10) schedule of reinforcement with licking of an empty spout serving as the operant behavior during 14 daily 3 h sessions. After this acquisition period, all rats received a 90 min extinction session following either 1 day or 14 days of home cage abstinence. When the extinction session occurred after only 1 day of home cage abstinence, rats with a history of heroin self-administration divided their responses equally between the previously "active" and "inactive" spouts. However, when the extinction session occurred following 14 days of home cage abstinence, the rats exhibited marked goal-directed heroin-seeking behavior by licking more on the previously "active" than "inactive" spout. These findings demonstrate that heroin-seeking behavior incubates over time, resulting in goal-directed heroin-seeking behavior in rats following 14 days but not 1 day of abstinence. Moreover, this facilitatory effect occurred in response to a different training schedule, lower total drug intake, and shorter periods of daily access than previously reported with heroin.     

台湾医院病患用药教育推行状况及启示

目的:为大陆地区医院更有效地开展患者用药教育提供参考。方法:介绍台湾地区的医院实施病患用药教育的主要举措。结果与结论:与台湾地区相比,目前大陆地区患者在医院领药用药时能获得的指导和有效用药咨询还远远不够,离开医院以后的用药教育、咨询更是非常有限。大陆地区医院应通过培训药师、建立信息平台、发放用药指导资料等途径实施患者用药教育。