Calculating the cost of medication errors: A systematic review of approaches and cost variables.

INTRODUCTION: Medication errors are an unnecessary cost to a healthcare system and patients of a country. This review aimed to systematically identify published cost variables used to calculate the cost of medication errors and to explore any updates on findings already known on calculating the cost of medication errors during the past 10 years. METHODS: A systematic review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Electronic databases, PubMed, Scopus, Emerald and JSTOR were searched, using keywords "medication error" AND "cost" and predetermined inclusion criteria. Duplicate articles were removed. Quality check was done using 10 criteria. Cost variables used in calculating the cost of medication errors were extracted from each article. RESULTS: Among 3088 articles, 33 articles were selected for review. Most studies were conducted in Western countries. Cost variables used (types and number) by different studies varied widely. Most studies (N=29) had used direct costs only. A few studies (N=4) had used both direct and indirect costs for the purpose. Perspectives considered when calculating cost of medication errors also varied widely. A total of 35 variables used to calculate medication error costs were extracted from selected articles. CONCLUSION: Variables used to calculate the cost of medication errors were not uniform across studies. Almost a decade after systematic reviews previously reporting on this area, a validated methodology to calculate the cost of medication errors has still not been reported to date and highlights the still pending necessity of a standard method to be established.

Multifaceted pharmacist-led interventions in secondary care settings between countries of various income levels: a scoping review protocol.

INTRODUCTION: Clinical pharmacy services often involve multifaceted pharmacist-led interventions. However, current pharmacy practice models vary across different countries. Despite the documented benefits of clinical pharmacy services, the characteristics of pharmacist-led interventions in different countries have not yet been adequately explored and described. Therefore, this protocol outlines the methodology for a proposed scoping review aiming to investigate various types of multifaceted pharmacist-led interventions and the outcomes used to evaluate their effectiveness within secondary care settings. Additionally, the scoping review will map the current evidence surrounding the characteristics of interventions and outcomes reported across various countries of socioeconomic status. METHODS AND ANALYSIS: The scoping review will be conducted according to the JBI Methodology for Scoping Reviews and reported according to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) Extension for Scoping Reviews. We will systematically search the following electronic databases: MEDLINE (Ovid), CINAHL (EbscoHost), Embase (embase.com), Scopus (scopus.com), Cochrane Library (cochranelibrary.com) and APA PsycInfo (Ovid). Additionally, the reference lists of identified reviews and included full texts will be searched for relevant papers. Grey literature sources, such as International Pharmaceutical Abstracts and the International Pharmaceutical Federation (FIP) website, will be searched. We will include primary studies published in the English language from January 2013 to December 2023, involving secondary care multifaceted pharmacist-led interventions. Two independent reviewers will screen studies against eligibility criteria and use a piloted data extraction form to extract relevant information. We will extract relevant data, complete a tabular summary from each included publication and analyse it. ETHICS AND DISSEMINATION: Ethical approval is not required as we will be using data from publicly available literature sources. Findings will be disseminated in publications and presentations with relevant stakeholders. We aim to map available evidence across the breadth of studies that have reported multifaceted pharmacist-led interventions and their outcomes.

Impact of selected clinical pharmacy services on medication safety and prescription cost of patients attending a selected primary healthcare setting: a translational experience from a resource-limited country.

PURPOSE OF THE STUDY: The impact of clinical pharmacy (CP) services on primary healthcare (PH) is less well studied in resource-limited countries. We aimed to evaluate the effect of selected CP services on medication safety and prescription cost at a PH setting in Sri Lanka. STUDY DESIGN: Patients attending a PH medical clinic with medications prescribed at the same visit were selected using systematic random sampling. A medication history was obtained and medications were reconciled and reviewed using four standard references. Drug-related problems (DRPs) were identified and categorised, and severities were assessed using the National Coordinating Council Medication Error Reporting and Prevention Index. Acceptance of DRPs by prescribers was assessed. Prescription cost reduction due to CP interventions was assessed using Wilcoxon signed-rank test at 5% significance. RESULTS: Among 150 patients approached, 51 were recruited. Nearly half (58.8%) reported financial difficulties in purchasing medications. DRPs identified were 86. Of them, 13.9% (12 of 86) DRPs were identified when taking a medication history (administration errors (7 of 12); self-prescribing errors (5 of 12)), 2.3% (2 of 86) during reconciliation, and 83.7% (72 of 86) during medication reviewing (wrong indication (18 of 72), wrong strength (14 of 72), wrong frequency (19 of 72), wrong route of administration (2 of 72), duplication (3 of 72), other (16 of 72)). Most DRPs (55.8%) reached the patient, but did not cause harm. Prescribers accepted 65.8% (56 of 86) DRPs identified by researchers. The individual prescription cost reduced significantly due to CP interventions (p<0.001). CONCLUSIONS: Implementing CP services could potentially improve medication safety at a PH level even in resource-limited settings. Prescription cost could be significantly reduced for patients with financial difficulties in consultation with prescribers.

Association of waist circumference with haemoglobin A1c and its optimal cutoff for identifying prediabetes and diabetes risk in the Chinese population.

Haemoglobin A1c (HbA1c) is a marker of glycaemic control in type 2 diabetes mellitus (T2DM). Increased waist circumference (WC) is known to be associated with T2DM. Therefore, we investigated the relationship of WC with HbA1c and explored its optimal cutoff for identifying prediabetes and diabetes risk. This study included 2339 participants between 18 and 84 years of age [mean (SD) age, 43.5 (11.9) years] with valid data on WC, HbA1c and related variables in the Shenzhen-Hong Kong United Network on Cardiovascular Disease study. Participants on anti-diabetic medications were excluded. Multiple linear regression was used to investigate the relationship between HbA1c and WC. Cutoff values of WC indicating an HbA1c level of 5.7% and 6.5% were also assessed using optimal binning. There was a significant linear relationship between WC and HbA1c in the overall population (B = 0.261, P < 0.001), men (B = 0.206, P < 0.001) and women (B = 0.311, P < 0.001). After adjustment for smoking, alcohol consumption, physical activity, hypertension, hypercholesterolaemia and age, the association remained significant in the overall population (B = 0.201, P < 0.001), men (B = 0.186, P < 0.001) and women (B = 0.182, P < 0.001). The optimal cutoff values of WC indicating an HbA1c level of 5.7% and 6.5% was 83 cm (entropy = 0.943) and 85 cm (entropy = 0.365) in men, and 78 cm (entropy = 0.922) and 86 cm (entropy = 0.256) in women. The linear relationship between WC and HbA1c in this study suggests that addressing central obesity issue is beneficial to people with T2DM or at risk of T2DM. WC cutoff values of 85 cm for men and 86 cm for women are appropriate for recommendation to undergo diabetes screening.

Impact of selected clinical pharmacy services on medication safety and prescription cost of patients attending a selected primary healthcare setting: a translational experience from a resource-limited country.

PURPOSE OF THE STUDY: The impact of clinical pharmacy (CP) services on primary healthcare (PH) is less well studied in resource-limited countries. We aimed to evaluate the effect of selected CP services on medication safety and prescription cost at a PH setting in Sri Lanka. STUDY DESIGN: Patients attending a PH medical clinic with medications prescribed at the same visit were selected using systematic random sampling. A medication history was obtained and medications were reconciled and reviewed using four standard references. Drug-related problems (DRPs) were identified and categorised, and severities were assessed using the National Coordinating Council Medication Error Reporting and Prevention Index. Acceptance of DRPs by prescribers was assessed. Prescription cost reduction due to CP interventions was assessed using Wilcoxon signed-rank test at 5% significance. RESULTS: Among 150 patients approached, 51 were recruited. Nearly half (58.8%) reported financial difficulties in purchasing medications. DRPs identified were 86. Of them, 13.9% (12 of 86) DRPs were identified when taking a medication history (administration errors (7 of 12); self-prescribing errors (5 of 12)), 2.3% (2 of 86) during reconciliation, and 83.7% (72 of 86) during medication reviewing (wrong indication (18 of 72), wrong strength (14 of 72), wrong frequency (19 of 72), wrong route of administration (2 of 72), duplication (3 of 72), other (16 of 72)). Most DRPs (55.8%) reached the patient, but did not cause harm. Prescribers accepted 65.8% (56 of 86) DRPs identified by researchers. The individual prescription cost reduced significantly due to CP interventions (p<0.001). CONCLUSIONS: Implementing CP services could potentially improve medication safety at a PH level even in resource-limited settings. Prescription cost could be significantly reduced for patients with financial difficulties in consultation with prescribers.

The extent of community pharmacists' involvement in detecting and resolving Drug Related Problems (DRPs) in prescriptions - A real time study from Sri Lanka.

Background: Appropriate medication use is necessary to ensure patient safety. Drug Related Problems (DRPs) could result in patient harm. Purpose: To assess the prevalence and types of DRPs in prescriptions, and the proportion of DRPs detected and resolved by community pharmacists during dispensation of prescriptions in a selected community pharmacy. Methods: A prospective, cross-sectional study was conducted in a selected community pharmacy in Colombo, Sri Lanka, where one researcher reviewed for DRPs in systematically selected prescriptions (N = 400), and another directly observed the frequency of DRPs identified by community pharmacists in the same set of prescriptions. Actions taken by pharmacists on resolving DRPs were also documented. DRPs were classified according to a slightly modified version of Pharmaceutical Care Network Euro pe classification V8.01. Descriptive and comparative data analysis were performed using SPSS database V.21. P < 0.05 was considered as significant. Results: Among 1986 medications, a total of 1211 DRPs were identified by researchers, of which only 441 DRPs were detected by community pharmacists who participated in the study (N = 24). DRPs identified by the researcher were related to medication selection (N = 15), medication form (N = 1), dose selection (N = 817), duration of treatment (N = 128), incomplete prescriptions (N = 128), and other (outdated prescriptions, missing unit of measurements, and ambiguous names of medications that could not be read by both community pharmacists and researcher) (N = 122) of which only one, one, 394, 13, five, and 27 were identified by pharmacists, respectively. Among 441 DRPs identified by pharmacists, 406 were resolved by them. Most DRPs were self-resolved by pharmacists themselves (367/406), while patients were also sent back to the prescriber (13/406), and some dispensation of medications to patients were refused (9/406). Conclusion: Among the DRPs frequently observed in the sample of community prescriptions, the community pharmacists identified significantly fewer DRPs in relation to each type identified by the researcher, and pharmacists missed some, including incomplete prescriptions, that had potential to harm. Systematic and sustainable training of pharmacists on performing a preliminary prescription review and continuous education programs must be implemented to improve community pharmacist dispensing practices in this community.

Application of Failure Mode and Effect Analysis (FMEA) to improve medication safety: a systematic review.

Medication safety is a phenomenon of interest in most healthcare settings worldwide. Failure Mode and Effect Analysis (FMEA) is a prospective method to identify failures. We systematically reviewed the application of FMEA in improving medication safety in the medication use process. Electronic databases were searched using keywords ((failure mode and effect analysis) AND (pharmacy OR hospital)). Articles that fulfilled prespecified inclusion criteria were selected and were then screened independently by two researchers. Studies fulfilling the inclusion criteria and cited in articles selected for the study were also included. Selected articles were then analysed according to specified objectives. Among 27€706 articles obtained initially, only 29 matched the inclusion criteria. After adding four cited articles, a total of 33 articles were analysed. FMEA was used to analyse both existing systems and new policies before implementing. All participants of FMEA reported that this process was an effective group activity to identify errors in the system, although time-consuming and subjective.

A narrative review on do's and don'ts in prescription label writing - lessons for pharmacists.

Providing medicines information is a key role of a pharmacist. Miscommunication between pharmacist and patient may lead to adverse drug events or therapeutic failure. The aim of the review was to summarize the available research findings on factors that lead to poor communication between pharmacist and patient when providing written medicines information on dispensing and auxiliary labels and identify successful interventional approaches that help to alleviate these concerns. We selected articles available on PubMed, SAGE, and Google Scholar databases that are relevant to our objective. A total of 33 articles that matched the objectives of this review were retrieved and evaluated by all three authors. It was found that patient literacy levels, number of medicines dispensed, format and organization of the label, complexity of dosing instructions, precision of writing dosing instructions and use of icons, graphics and pictograms were aspects that were frequently used, and hence assessed by research groups on medicine label writing. Most studies reported that simple and straight forward instructions written legibly were better comprehended by patients. Based on our findings, we provide here useful tips for pharmacists on writing dosing instructions for patients. Finally, we spotlight crucial research gaps related to communicating written dosing instructions that need to be addressed in the future.

Ten years of clinical trial registration in a resource-limited setting: Experience of the Sri Lanka clinical trials registry.

AIM: We describe our experience of the first 10 years at the Sri Lanka Clinical Trials Registry (SLCTR). METHODS: We analyzed all trial records of the SLCTR over the study period. We collected information regarding trial characteristics and completeness of data entry in the SLCTR data set. RESULTS: During the study period, 210 trials (63% of all applications) were registered with the SLCTR. The number of registered trials showed an increasing trend over the years. All trial registrations had complete entries for all the data fields studied. Only 17.6% of the trials were registered retrospectively. All the registered trials were interventional studies, and the majority (87.6%) were randomized controlled trials. A significant proportion of trials (28.6%) were on noncommunicable diseases, and 12.4% were on pregnancy and its outcomes. Several trials (9.5%) were international collaborative studies. A majority of the Principal Investigators (70.9%) were affiliated to a university. Most of the studies (41.9%) were self-funded by the investigators. Details of ethics review committee approval were available for 96.7% of registered trials. Over a third of the registered trials (37.1%) had completed recruitment at the time of analysis. A majority of the trials (72.8%) had updated trial data since registration. CONCLUSIONS: There is a steady increase in the number of trials registered at the SLCTR. Complete entries for all the data fields were seen in all trial registrations. The SLCTR has made a positive contribution to the emergence of a healthy clinical research environment in Sri Lanka.

The effectiveness of a 'Do Not Use' list and perceptions of healthcare professionals on error-prone abbreviations.

BACKGROUND: The use of error-prone abbreviations has led to medication errors. Many safety organisations have introduced 'Do Not Use' lists (lists of error-prone abbreviations that should be avoided by prescribers), but the effectiveness of these lists have not been studied. OBJECTIVE: We assessed the effectiveness of the 'Do Not Use' list introduced to the study hospital, and sought the attitudes of healthcare professionals on other potentially dangerous abbreviations (not included in the 'Do Not Use' list) used in prescriptions. SETTING: The study was conducted in a university affiliated tertiary hospital in Hong Kong. METHODS: An uncontrolled observational study was conducted. In-patient prescriptions were reviewed to assess the use of error-prone abbreviations included in the 'Do Not Use' list before, after its introduction, and following the first reinforcement. An on-line survey was also conducted among prescribers, pharmacists and nurses. MAIN OUTCOME MEASURE: Rate of using error-prone abbreviations and other unapproved abbreviations among reviewed prescriptions. RESULTS: 3,238 prescriptions (23,398 drug items) were reviewed. The use of abbreviations in the 'Do Not Use' list decreased from 7.8 to 3.3 % after its introduction (P < 0.001) and to 1.3 % after the first reinforcement (P < 0.001). However, unapproved abbreviations were used to denote prescribing instructions in 19.2 % of the drugs prescribed. 49 different types of unapproved abbreviations were used for drug names. CONCLUSIONS: A 'Do Not Use' list is effective in reducing error-prone abbreviations. Reinforcements of the 'Do Not Use' list further improves prescriber adherence. However, many other unapproved abbreviations (not included in current 'Do Not Use' lists) are used when prescribing. Periodic reminders on error-prone abbreviations and education of prescribers on associated risks may help to reduce the use of error-prone abbreviations in hospitals.

Hay fever and hypertension in the US adult population.

PURPOSE: Hypertension is associated with inflammation. Whether the inflammation caused by allergic diseases such as allergic rhinitis can predispose to hypertension is controversial. Therefore, we studied the association between hay fever and hypertension in the United States National Health and Nutrition Examination Survey (NHANES). METHODS: We analyzed data on 1883 men and 2029 women in NHANES 2005-2006. We included participants aged 20 years or older who had valid data on hay fever and hypertension. RESULTS: 13.5% of the participants had a previous diagnosis of hay fever and 36.2% of them had hypertension. There were ethnic differences in the prevalence of previous hay fever diagnosis (p < 0.001) and hypertension (p < 0.001). There was no significant association between previous hay fever diagnosis and hypertension in men in any age group. The association between previous hay fever diagnosis and hypertension in women was significant in those aged 20-39 years (OR = 2.59, 95%CI = 1.26-5.30, p = 0.013). The association between previous hay fever diagnosis and hypertension in women aged form 20 to 39 years remained significant after adjustment for age, race and body mass index (OR = 2.74, 95%CI = 1.48-5.06, p = 0.003). After further adjustment for physical activity, alcohol consumption and smoking, the association was not attenuated (OR = 2.68, 95%CI = 1.38-5.18, p = 0.006). Further adjustment for liver enzymes, C-reactive protein and immunoglobulin E level attenuated the association slightly (OR = 2.72, 95%CI = 1.19-6.22, p = 0.021). CONCLUSIONS: In this nationally representative population-based survey, previous hay fever diagnosis is not significantly associated with hypertension in adults overall. There is an association in subgroup of young women aged 20-39. Further work is needed to confirm that this is a true association.

Safety of antiobesity drugs.

Obesity is a major health problem worldwide. Although diet and physical activity are crucial in the management of obesity, the long-term success rate is low. Therefore antiobesity drugs are of great interest, especially when lifestyle modification has failed. As obesity is not an immediate life-threatening disease, these drugs are required to be safe. Antiobesity drugs that have been developed so far have limited efficacies and considerable adverse effects affecting tolerability and safety. Therefore, most antiobesity drugs have been withdrawn. Fenfluramine and dexfenfluramine were withdrawn because of the potential damage to heart valves. Sibutramine was associated with an increase in major adverse cardiovascular events in the Sibutramine Cardiovascular Outcomes (SCOUT) trial and it was withdrawn from the market in 2010. Rimonabant was withdrawn because of significant psychiatric adverse effects. Orlistat was approved in Europe and the United States for long-term treatment of obesity, but many patients cannot tolerate its gastrointestinal side effects. Phentermine and diethylpropion can only be used for less than 12 weeks because the long-term safety of these drugs is unknown. Ephedrine and caffeine are natural substances but the effects on weight reduction are modest. As a result there is a huge unmet need for effective and safe antiobesity drugs. Recently lorcaserin and topiramate plus phentermine have been approved for the treatment of obesity but long-term safety data are lacking.

Is human cytomegalovirus infection associated with hypertension? The United States National Health and Nutrition Examination Survey 1999-2002.

PURPOSE: Recent studies have implicated the human cytomegalovirus (HCMV) as a possible pathogen for causing hypertension. We aimed to study the association between HCMV infection and hypertension in the United States National Health and Nutrition Examination Survey (NHANES). METHODS: We analyzed data on 2979 men and 3324 women in the NHANES 1999-2002. We included participants aged 16-49 years who had valid data on HCMV infection and hypertension. RESULTS: Of the participants, 54.7% had serologic evidence of HCMV infection and 17.5% had hypertension. There were ethnic differences in the prevalence of HCMV infection (P<0.001) and hypertension (P<0.001). The prevalence of both increased with age (P<0.001). Before adjustment, HCMV seropositivity was significantly associated with hypertension in women (OR=1.63, 95% CI=1.25-2.13, P=0.001) but not in men. After adjustment for race/ethnicity, the association between HCMV seropositivity and hypertension in women remained significant (OR=1.55, 95% CI=1.20-2.02, P=0.002). Further adjustment for body mass index, diabetes status and hypercholesterolemia attenuated the association (OR=1.44, 95% CI=1.10-1.90, P=0.010). However, after adjusting for age, the association was no longer significant (OR=1.24, 95% CI=0.91-1.67, P=0.162). CONCLUSIONS: In this nationally representative population-based survey, HCMV seropositivity is associated with hypertension in women in the NHANES population. This association is largely explained by the association of hypertension with age and the increase in past exposure to HCMV with age.

Management of obesity in the National Health and Nutrition Examination Survey (NHANES), 2007-2008.

PURPOSE: The prevalence of obesity has been increasing in the United States. We set out to investigate the use of pharmacologic and non-pharmacologic therapy for the treatment of obesity in recent years. METHODS: We included 2630 men and 2702 women who took part in the National Health and Nutrition Examination Survey from 2007 to 2008. We analyzed their demographic and anthropometric data and their weight and drug history. RESULTS: A total of 45.9% of men and 45.0% of women were candidates for treatment (body mass index ≥30 kg/m(2), or ≥27 kg/m(2) with risk factors). Among these participants, 85.1% considered themselves overweight, 90.1% would like to lose weight, 61.9% had dietary changes, 36.5% exercised, 3.7% took nonprescription drugs, and 2.2% took prescription drugs to control weight during the preceding year. During the preceding month, 0.5% and 0.1% of participants were taking phentermine and orlistat, respectively. There were no participants on sibutramine. CONCLUSIONS: Although obesity is highly prevalent, only a small percentage of obese Americans are on anti-obesity medication. The withdrawal of sibutramine would have minimal impact on the general population. There is a need for more lifestyle changes in the majority of obese individuals.