Systematic review of medication errors in pediatric patients

Evaluation of the medication process in pediatric patients: a meta-analysis

OBJECTIVE

to meta-analyze studies that have assessed the medication errors rate in pediatric patients during prescribing, dispensing, and drug administration.

SOURCES

searches were performed in the PubMed, Cochrane Library, and Trip databases, selecting articles published in English from 2001 to 2010.

SUMMARY OF THE FINDINGS

a total of 25 original studies that met inclusion criteria were selected, which referred to pediatric inpatients or pediatric patients in emergency departments aged 0-16 years, and assessed the frequency of medication errors in the stages of prescribing, dispensing, and drug administration.

CONCLUSIONS

the combined medication error rate for prescribing errors to medication orders was 0.175 (95% Confidence Interval: [CI] 0.108-0.270), the rate of prescribing errors to total medication errors was 0.342 (95% CI: 0.146-0.611), that of dispensing errors to total medication errors was 0.065 (95% CI: 0.026-0.154), and that ofadministration errors to total medication errors was 0.316 (95% CI: 0.148-0.550). Furthermore, the combined medication error rate for administration errors to drug administrations was 0.209 (95% CI: 0.152-0.281). Medication errors constitute a reality in healthcare services. The medication process is significantly prone to errors, especially during prescription and drug administration. Implementation of medication error reduction strategies is required in order to increase the safety and quality of pediatric healthcare.

Drug-drug interactions in inpatient and outpatient settings in Iran: a systematic review of the literature

Drug-drug interactions (DDIs) are an important type of adverse drug events. Yet overall incidence and pattern of DDIs in Iran has not been well documented and little information is available about the strategies that have been used for their prevention. The purpose of this study was to systematically review the literature on the incidence and pattern of DDIs in Iran as well as the used strategies for their prevention. PubMed, Scopus, electronic Persian databases, and Google Scholar were searched to identify published studies on DDIs in Iran. Additionally, the reference lists of all retrieved articles were reviewed to identify additional relevant articles. Eligible studies were those that analyzed original data on the incidence of DDIs in inpatient or outpatient settings in Iran. Articles about one specific DDI and drug interactions with herbs, diseases, and nutrients were excluded. The quality of included studies was assessed using quality assessment criteria. Database searches yielded 1053 potentially eligible citations. After removing duplicates, screening titles and abstracts, and reading full texts, 34 articles were found to be relevant. The quality assessment of the included studies showed a relatively poor quality. In terms of study setting, 18 and 16 studies have been conducted in inpatient and outpatient settings, respectively. All studies focused on potential DDIs while no study assessed actual DDIs. The median incidence of potential DDIs in outpatient settings was 8.5% per prescription while it was 19.2% in inpatient settings. The most indicated factor influencing DDIs incidence was patient age. The most involved drug classes in DDIs were beta blockers, angiotensin-converting-enzyme inhibitors (ACEIs), diuretic agents, and non-steroidal anti-inflammatory drugs (NSAIDs). Thirty-one studies were observational and three were experimental in which the strategies to reduce DDIs were applied. Although almost all studies concluded that the incidence of potential DDIs in Iran in both inpatient and outpatient settings was relatively high, there is still no evidence of the incidence of actual DDIs. More extensive research is needed to identify and minimize factors associated with incidence of DDIs, and to evaluate the effects of preventive interventions especially those that utilize information technology.

Size does matter--age-related weight estimation in "tall n' thin" and "tiny n' thick" children and a new habitus-adapted alternative to the EPLS-formula

AIM OF THE STUDY

Weight in kilograms is a required parameter in the emergency medical care of children. In emergent situations, obtaining an accurate weight is often not possible. In such situations, weight can be estimated by using an age-dependent formula such as the EPLS-formula (age in years+4)×2. As recently recognized for emergency tapes, the habitus of the child has a major influence on weight estimation. In this study, the performance of various age-dependent formulas is to be investigated, with special regard to children demonstrating non-normal growth.

METHODS

The performance of various formulas for weight estimation in children growing along the 5th, 50th, and 95th percentile is investigated based on a mathematical model compared to the WHO and CDC reference percentiles using ICC and Bland-Altman methods. Additionally, a new formula for children demonstrating non-normal growth is derived by regression analysis and tested: f×age in years+6 with the factor f being 2 for "tall n' thin", 3 for normal and 4 for "tiny n' thick" children.

RESULTS

All previously published formulas lack precision when applied to children outside the 50th percentile. The new habitus-adapted formula shows a better performance for children growing along the 5th or 95th percentile.

CONCLUSIONS

The new formula provides enhanced precision in weight estimation and can help in reducing, e.g. drug dosing errors. It should be used for weight estimation in children demonstrating non-normal weight development and in situations when superior methods such as weighing or habitus-adapted emergency tapes are not applicable.

Adverse drug events and medication errors in Japanese paediatric inpatients: a retrospective cohort study

OBJECTIVES

Knowledge about the epidemiology of adverse drug events (ADEs) and medication errors in paediatric inpatients is limited outside Western countries. To improve paediatric patient safety worldwide, assessing local epidemiology is essential.

DESIGN

The Japan Adverse Drug Events (JADE) Study was a cohort study.

SETTING

Paediatric inpatients at two tertiary care teaching hospitals in Japan.

MAIN OUTCOME MEASURES

ADEs and medication errors identified by onsite review of all medical charts, incident reports and prescription queries by pharmacists. Two independent physicians reviewed all incidents and classified ADEs and medication errors, as well as their severity and preventability.

RESULTS

We enrolled 1189 admissions which included 12,691 patient-days during the study period, and identified 480 ADEs and 826 medication errors. The incidence of ADEs was 37.8 (95% CI 34.4 to 41.2) per 1000 patient-days and that of medication errors was 65.1 (95% CI 60.6 to 69.5) per 1000 patient-days. Among ADEs, 4%, 23% and 73% were fatal or life-threatening, serious and significant, respectively. Among the 480 ADEs, 36 (8%) were considered to be preventable which accounted for 4% of all medication errors, while 668 (81%) of all medication errors were judged to have the potential to cause harm to patients. The most common error stage for preventable ADEs was monitoring (78%) whereas 95% of potential ADEs occurred at the ordering stage.

CONCLUSIONS

ADEs and medication errors were common in paediatric inpatients in Japan, though the proportion of ADEs that were preventable was low. The ordering and monitoring stages appeared most important for improving safety.

Sensitivity and specificity of dosing alerts for dosing errors among hospitalized pediatric patients

OBJECTIVES

To determine the sensitivity and specificity of a dosing alert system for dosing errors and to compare the sensitivity of a proprietary system with and without institutional customization at a pediatric hospital.

METHODS

A retrospective analysis of medication orders, orders causing dosing alerts, reported adverse drug events, and dosing errors during July, 2011 was conducted. Dosing errors with and without alerts were identified and the sensitivity of the system with and without customization was compared.

RESULTS

There were 47,181 inpatient pediatric orders during the studied period; 257 dosing errors were identified (0.54%). The sensitivity of the system for identifying dosing errors was 54.1% (95% CI 47.8% to 60.3%) if customization had not occurred and increased to 60.3% (CI 54.0% to 66.3%) with customization (p=0.02). The sensitivity of the system for underdoses was 49.6% without customization and 60.3% with customization (p=0.01). Specificity of the customized system for dosing errors was 96.2% (CI 96.0% to 96.3%) with a positive predictive value of 8.0% (CI 6.8% to 9.3). All dosing errors had an alert over-ridden by the prescriber and 40.6% of dosing errors with alerts were administered to the patient. The lack of indication-specific dose ranges was the most common reason why an alert did not occur for a dosing error.

DISCUSSION

Advances in dosing alert systems should aim to improve the sensitivity and positive predictive value of the system for dosing errors.

CONCLUSIONS

The dosing alert system had a low sensitivity and positive predictive value for dosing errors, but might have prevented dosing errors from reaching patients. Customization increased the sensitivity of the system for dosing errors.

Paediatric nurses' adherence to the double-checking process during medication administration in a children's hospital: an observational study

AIM

To evaluate how closely double-checking policies are followed by nurses in paediatric areas and also to identify the types, frequency and rates of medication administration errors that occur despite the double-checking process.

BACKGROUND

Double-checking by two nurses is an intervention used in many UK hospitals to prevent or reduce medication administration errors. There is, however, insufficient evidence to either support or refute the practice of double-checking in terms of medication error risk reduction.

DESIGN

Prospective observational study.

METHODS

This was a prospective observational study of paediatric nurses' adherence to the double-checking process for medication administration from April-July 2012.

RESULTS

Drug dose administration events (n = 2000) were observed. Independent drug dose calculation, rate of administering intravenous bolus drugs and labelling of flush syringes were the steps with lowest adherence rates. Drug dose calculation was only double-checked independently in 591 (30%) drug administrations. There was a statistically significant difference in nurses' adherence rate to the double-checking steps between weekdays and weekends in nine of the 15 evaluated steps. Medication administration errors (n = 191) or deviations from policy were observed, at a rate of 9·6% of drug administrations. These included 64 drug doses, which were left for parents to administer without nurse observation.

CONCLUSION

There was variation between paediatric nurses' adherence to double-checking steps during medication administration. The most frequent type of administration errors or deviation from policy involved the medicine being given to the parents to administer to the child when the nurse was not present.

The impact of a pediatric antibiotic standard dosing table on dosing errors

OBJECTIVE

The goal of this study was to compare the rate of dosing errors for antibiotic orders in pediatric patients before and after the implementation of an antibiotic standard dosing table with precalculated dosage for different weight ranges at a tertiary care hospital.

METHODS

A retrospective study of 300 antibiotic prescriptions for pediatric patients in three different settings (ambulatory care, inpatient, and emergency department) at a tertiary care hospital assessed the appropriateness of antibiotic dosing. The need for an antibiotic dosing standardization policy was identified after finding that more than 30% of patients experienced a dose variation of ±10% of the recommended daily dose. An antibiotic dosing standardization policy was implemented with an antibiotic standard dosing table for different weight ranges, and a hospital wide-education program was conducted to increase awareness of this new practice and its benefits. Three months after implementation, a random sampling of 300 antibiotic prescriptions collected from the same settings as the pre-intervention period was evaluated for compliance with the new policy and its effect on the number of antibiotic dosing errors.

RESULTS

Six hundred prescriptions were included in this study (300 in the pre-implementation phase and 300 in the post-implementation phase). Patient characteristics were similar in both groups in terms of sex, age, and weight. Physician compliance with the antibiotic dosing standardization policy after its implementation was 62%. The dosing standardization policy reduced the rate of dosing errors from 34.3% to 5.06% (p=0.0001), and weight documentation on the antibiotic prescription improved from 65.8% to 85.7% (p=0.0001).

CONCLUSIONS

Implementation of an antibiotic dosing standardization policy significantly reduced the incidence of dosing errors in antibiotics prescribed for pediatric patients in our hospital.

Reducing the risk of harm from medication errors in children

MEDICATION ERRORS AFFECT THE PEDIATRIC AGE GROUP IN ALL SETTINGS

outpatient, inpatient, emergency department, and at home. Children may be at special risk due to size and physiologic variability, limited communication ability, and treatment by nonpediatric health care providers. Those with chronic illnesses and on multiple medications may be at higher risk of experiencing adverse drug events. Some strategies that have been employed to reduce harm from pediatric medication errors include e-prescribing and computerized provider order entry with decision support, medication reconciliation, barcode systems, clinical pharmacists in medical settings, medical staff training, package changes to reduce look-alike/sound-alike confusion, standardization of labeling and measurement devices for home administration, and quality improvement interventions to promote nonpunitive reporting of medication errors coupled with changes in systems and cultures. Future research is needed to measure the effectiveness of these preventive strategies.

Drug administration errors in hospital inpatients: a systematic review

CONTEXT

Drug administration in the hospital setting is the last barrier before a possible error reaches the patient.

OBJECTIVES

We aimed to analyze the prevalence and nature of administration error rate detected by the observation method.

DATA SOURCES

Embase, MEDLINE, Cochrane Library from 1966 to December 2011 and reference lists of included studies.

STUDY SELECTION

Observational studies, cross-sectional studies, before-and-after studies, and randomized controlled trials that measured the rate of administration errors in inpatients were included.

DATA EXTRACTION

Two reviewers (senior pharmacists) independently identified studies for inclusion. One reviewer extracted the data; the second reviewer checked the data. The main outcome was the error rate calculated as being the number of errors without wrong time errors divided by the Total Opportunity for Errors (TOE, sum of the total number of doses ordered plus the unordered doses given), and multiplied by 100. For studies that reported it, clinical impact was reclassified into four categories from fatal to minor or no impact. Due to a large heterogeneity, results were expressed as median values (interquartile range, IQR), according to their study design.

RESULTS

Among 2088 studies, a total of 52 reported TOE. Most of the studies were cross-sectional studies (N=46). The median error rate without wrong time errors for the cross-sectional studies using TOE was 10.5% [IQR: 7.3%-21.7%]. No fatal error was observed and most errors were classified as minor in the 18 studies in which clinical impact was analyzed. We did not find any evidence of publication bias.

CONCLUSIONS

Administration errors are frequent among inpatients. The median error rate without wrong time errors for the cross-sectional studies using TOE was about 10%. A standardization of administration error rate using the same denominator (TOE), numerator and types of errors is essential for further publications.

Profile of prescribing errors detected by clinical pharmacists in paediatric hospitals in Spain

BACKGROUND

Pharmaceutical care involves three essential functions: identifying potential and real medication-related problems, solving real medication-related problems and preventing potential medication related problems.

OBJECTIVE

To describe the profile of prescribing errors detected and prevented by paediatric clinical pharmacists in medical orders for inpatients in Spain.

SETTINGS AND METHODS

A prospective, descriptive, multicentre epidemiological study on medical orders for inpatients aged 1 day to 18 years, conducted between July and October 2011 at eight hospitals treating paediatric patients.

MAIN OUTCOME MEASURE

primary variables were most common errors, including clinical severity (according to a previously validated instrument), pharmacotherapeutic groups and drugs most commonly involved, the impact of pharmaceutical interventions, as well as the population receiving most interventions, and type of prescription (manual of electronic) and dispensation system (ward stock, unit-dose or automated dispensing cabinets) that are most involved in Spain.

RESULTS

A total of 667 interventions related to quality of the prescription were recorded at eight sites. 21 were excluded. 41.2 % concerned manual prescribing systems, and 58.8 % electronic prescribing systems. The interventions were performed on patients with a mean age of 5 years (standard deviation 5.43). In interventions concerning prescribing errors, 212 different drugs were involved, mainly belonging to the group of anti-infectives. The main factor triggering pharmacist's recommendations was dose errors of 1.5-10 times the recommended dose. Therefore, the main prescription errors are dosing errors (49.3 %). With regard to the clinical severity of these prescribing errors, 51.9 % (306 cases) were considered significant, 26.3 % (155 cases) of minor significance, 19.8 (117 cases) were clinically serious and 2.0 % (12 cases) were potentially fatal. There was a 95.4 % global acceptance rate for recommendations. The impact of accepted interventions showed that 64.7 % had a significant impact on patient health outcome, highlighting 1.1 % with a highly significant impact. The activity level of the paediatric clinical pharmacists was highly variable, with a median of 0.014 interventions/bed-day during the data collection period.

CONCLUSION

In view of the importance of the dosing errors in the prescription phase, and the clinical relevance of the errors detected, it seems to be necessary to implement measures as the development of decision support systems for paediatric dosing and strengthen the presence of pharmacists as a key element in preventing prescribing errors from reaching patients, thus ensuring that children receive effective, safe and efficient drug therapy.

[Tools for drug dosing in life-threatening pediatric emergencies]

Life-threatening pediatric emergencies are rare events in which precise, correct and fast drug dosing is essential. Intravenous drugs are most commonly dosed based on the child's weight in mg/kg. Numerous tools exist for aiding the physician in the error prone calculation, none of which meet all criteria for the perfect tool. Besides frequent training of practical skills and awareness of the problem of calculating the exact drug dose, it seems indispensable to have a localized tool at hand for these critical events.

What is the easier and more reliable dose calculation for iv phenytoin in children at risk of developing convulsive status epilepticus, 18 mg/kg or 20 mg/kg?

Background

With the Convulsive Status Guidelines due for renewal, we wondered if a phenytoin dose of ‘20 mg/kg’ would be easier to calculate correctly and therefore safer than the current ‘18 mg/kg’. An educational exercise in dose calculation was therefore undertaken to assess ease of calculation.

Method

A standard question paper was prepared, comprising five clinical scenarios with children of varying ages and estimated body weights. Medical students, trainee doctors at registrar and senior house officer level, and consultant paediatricians were asked to complete the exercise, in private, by one of two medical students (SD, PS). Calculations were done with and without a calculator, for 18 mg/kg and for 20 mg/kg in randomised order. Speed and errors (greater than 10%) were determined. The data analysis was performed using SPSS version 18.

Results

All answered all 20 scenarios, giving a total of 300 answers per doctor/student group, and 300 answers per type of calculation. When comparing the 2 doses, the numbers of errors more than 10% were significantly less in 20 mg/kg dose (0.33%) as compared to the 18 mg/kg dose (9.3%) (p<0.0001). Speed off calculation was significantly decreased in 20 mg/kg dose when compared with 18 mg/kg dose, with (p<0.001) or without (p<0.0001) the calculator. Speed was more than halved and errors were much less frequent by using a calculator, for the 18 mg/kg dose but no difference with or without the calculator for 20 mg/kg dose.

Conclusion

We recommend that the future guidelines should suggest iv Phenytoin at 20 mg/kg rather than 18 mg/kg. This will make the calculation easier and reduce the risk of significant errors.

Is Mindful Reflective Practice the way forward to reduce medication errors?

Background

Medication errors can seriously affect patients and healthcare professionals. In over 60% of cases, medication errors are associated with one or more contributory; individual factors including staff being forgetful, stressed, tired or engaged in multiple tasks simultaneously, often alongside being distracted or interrupted. Routinised hospital practice can lead professionals to work in a state of mindlessness, where it is easy to be unaware of how both body and mind are functioning.

Objective

Mindfulness, defined as moment-to-moment awareness of the everyday experience, could represent a useful strategy to improve reflection in pharmacy practice. The importance of reflection to reduce diagnostic errors in medicine has been supported in the literature; however, in pharmaceutical care, reflection has also only been discussed to a limited extent. There is expanding evidence on the effectiveness of mindfulness in the treatment of many mental and physical health problems in the general population, as well as its role in enhancing decision making, empathy and reducing burnout or fatigue in medical staff.

Considering the benefits of mindfulness, the authors suggest that healthcare professionals should be encouraged to develop their practice of mindfulness. This would not only be beneficial in relieving stress, increasing attention levels and awareness, but it is believed that the integration of mindfulness and reflective practice in a ‘Mindful Reflective Practice’ could minimise some of the individual factors that lead to medication errors.

Conclusions

Mindfulness Reflective Practice could therefore represent an important element in pre-registration education and continual professional development for pharmacists and other healthcare professionals.

Prevalence and Nature of Medication Administration Errors in Health Care Settings: A Systematic Review of Direct Observational Evidence

OBJECTIVE:

To systematically review empirical evidence on the prevalence and nature of medication administration errors (MAEs) in health care settings.

DATA SOURCES:

Ten electronic databases (MEDLINE, EMBASE, International Pharmaceutical Abstracts, Scopus, Applied Social Sciences Index and Abstracts, PsycINFO, Cochrane Reviews and Trials, British Nursing Index, Cumulative Index to Nursing and Allied Health Literature, and Health Management Information Consortium) were searched (1985-May 2012).

STUDY SELECTION AND DATA EXTRACTION:

English-language publications reporting MAE data using the direct observation method were included, providing an error rate could be determined. Reference lists of all included articles were screened for additional studies.

DATA SYNTHESIS:

In all, 91 unique studies were included. The median error rate (interquartile range) was 19.6% (8.6–28.3%) of total opportunities for error including wrong-time errors and 8.0% (5.1–10.9%) without timing errors, when each dose could be considered only correct or incorrect. The median rate of error when more than 1 error could be counted per dose was 25.6% (20.8–41.7%) and 20.7% (9.7–30.3%), excluding wrong-time errors. A higher median MAE rate was observed for the intravenous route (53.3% excluding timing errors (IQR 26.6–57.9%)) compared to when all administration routes were studied (20.1%; 9.0–24.6%), where each dose could accumulate more than one error. Studies consistently reported wrong time, omission, and wrong dosage among the 3 most common MAE subtypes. Common medication groups associated with MAEs were those affecting nutrition and blood, gastrointestinal system, cardiovascular system, central nervous system, and antiinfectives. Medication administration error rates varied greatly as a product of differing medication error definitions, data collection methods, and settings of included studies. Although MAEs remained a common occurrence in health care settings throughout the time covered by this review, potential targets for intervention to minimize MAEs were identified.

CONCLUSIONS:

Future research should attend to the wide methodological inconsistencies between studies to gain a greater measure of comparability to help guide any forthcoming interventions.

Pediatric drug-related problems: a multicenter study in four French-speaking countries

BACKGROUND

Pediatric intensive care patients represent a population at high risk for drug-related problems. There are few studies that compare the activity of clinical pharmacists between countries.

OBJECTIVE

To describe the drug-related problems identified and interventions by four pharmacists in a pediatric cardiac and intensive care unit.

SETTING

Four pediatric centers in France, Quebec, Switzerland and Belgium.

METHOD

This was a six-month multicenter, descriptive and prospective study conducted from August 1, 2009 to January 31, 2010. Drug-related problems and clinical interventions were compiled from four pediatric centers in France, Quebec, Switzerland and Belgium. Data on patients, drugs, intervention, documentation, approval and estimated impact were compiled.

MAIN OUTCOME MEASURE

Number and type of drug-related problems encountered in a large pediatric inpatient population.

RESULTS

A total of 996 interventions were recorded: 238 (24 %) in France, 278 (28 %) in Quebec, 351 (35 %) in Switzerland and 129 (13 %) in Belgium. These interventions targeted 270 patients (median 21 months old, 53 % male): 88 (33 %) in France, 56 (21 %) in Quebec, 57 (21 %) in Switzerland and 69 (26 %) in Belgium. The main drug-related problems were inappropriate administration technique (29 %), untreated indication (25 %) and supra-therapeutic dose (11 %). The pharmacists' interventions were mostly optimizing the mode of administration (22 %), dose adjustment (20 %) and therapeutic monitoring (16 %). The two major drug classes that led to interventions were anti-infectives for systemic use (23 %) and digestive system and metabolism drugs (22 %). Interventions mainly involved residents and all clinical staff (21 %). Among the 878 (88 %) proposed interventions requiring physician approval, 860 (98 %) were accepted.

CONCLUSION

This descriptive study illustrates drug-related problems and the ability of clinical pharmacists to identify and resolve them in pediatric intensive care units in four French-speaking countries.

Reducing mortality related to adverse events in children

Since the launch of the 100,000 Lives Campaign by the Institute for Healthcare Improvement (IHI), preventing medical adverse events to reduce avoidable mortality has emerged as a central focus for health care providers, institutions, regulators, insurance companies, and patients. Evidence-based interventions targeting the 6 interventions in the campaign have been associated with a reduction in preventable hospital deaths in the United States. The generalizability of the IHI's campaign to the pediatric population is only partly applicable. Pediatric experiences with rapid response teams and preventing central-line infections parallel the published experience of adults, with promise to significantly reduce preventable pediatric mortality.

Safety for home care: the use of Internet video calls to double-check interventions

Summary

We investigated the feasibility of using Internet video calls for a double check on medication or other complex interventions being administered in the home. Seven nurses were recruited to the study and received training on using laptop and tablet computers with mobile Internet connections. The devices were taken on scheduled home visits to patient homes and video calls with a second clinician were conducted to double-check various items associated with the clinical care of the patient. Over a 14-month period, 88 video calls were conducted during which a total of 600 checks were completed. The items checked included medication names, doses, segmentations on syringes and details of ventilator settings. The quality of the video call was acceptable on 97% of occasions. On three occasions (3%) it was not possible to establish a connection and the double check was not achieved. On every occasion that the video call was successful ( n = 85), nurses were 100% confident that they were able to carry out the full requirements of a double check. The use of Internet video calls is feasible for double-checking and has the potential to improve patient safety and reduce costs.

Medication errors in the Middle East countries: a systematic review of the literature

Background

Medication errors are a significant global concern and can cause serious medical consequences for patients. Little is known about medication errors in Middle Eastern countries. The objectives of this systematic review were to review studies of the incidence and types of medication errors in Middle Eastern countries and to identify the main contributory factors involved.

Methods

A systematic review of the literature related to medication errors in Middle Eastern countries was conducted in October 2011 using the following databases: Embase, Medline, Pubmed, the British Nursing Index and the Cumulative Index to Nursing & Allied Health Literature. The search strategy included all ages and languages. Inclusion criteria were that the studies assessed or discussed the incidence of medication errors and contributory factors to medication errors during the medication treatment process in adults or in children.

Results

Forty-five studies from 10 of the 15 Middle Eastern countries met the inclusion criteria. Nine (20 %) studies focused on medication errors in paediatric patients. Twenty-one focused on prescribing errors, 11 measured administration errors, 12 were interventional studies and one assessed transcribing errors. Dispensing and documentation errors were inadequately evaluated. Error rates varied from 7.1 % to 90.5 % for prescribing and from 9.4 % to 80 % for administration. The most common types of prescribing errors reported were incorrect dose (with an incidence rate from 0.15 % to 34.8 % of prescriptions), wrong frequency and wrong strength. Computerised physician rder entry and clinical pharmacist input were the main interventions evaluated. Poor knowledge of medicines was identified as a contributory factor for errors by both doctors (prescribers) and nurses (when administering drugs). Most studies did not assess the clinical severity of the medication errors.

Conclusion

Studies related to medication errors in the Middle Eastern countries were relatively few in number and of poor quality. Educational programmes on drug therapy for doctors and nurses are urgently needed.

Managing HIV-infected children in a low-resource, public clinic: a comparison of nurse vs. clinical officer practices in ART refill, calculation of adherence and subsequent appointments

Background

In Malawi, as in other sub-Saharan African countries, nurses manage patients of all ages on antiretroviral treatment (ART). Nurse management of children is rarely studied. We compare ART prescribing between nurses and clinical officers during routine clinic visits at an urban, public clinic to inform policy in paediatric ART management.

Methods

Caregivers of children on first-line ART provided information about visit dates, pill counts, ART dosage and formulation to a nurse and, subsequently, to a clinical officer. Nurses and clinical officers independently calculated adherence, dosage based on body weight, and set next appointment date. Clinical officers, but not nurses, accessed an electronic data system that made the calculations for them based on information from prior visits, actual and expected pill consumption, and standard drug supplies. Nurses calculated with pen and paper. For numerical variables, Bland-Altman graphs plot differences of each nurse–clinical officer pair against the mean, show the 95% limits of agreement (LoA), and also show the mean difference across all reviews. Kappa statistics assess agreement for categorical variables.

Results

A total of 704 matched nurse–clinical officer reviews of 367 children attending the ART clinics between March and July 2010 were analyzed. Eight nurses and 18 clinical officers were involved; two nurses and five clinical officers managed 100 visits or more. Overall, there was a good agreement between the two cadres. Differences between nurses and clinical officers were within narrow LoA and mean differences showed little deviation from zero, indicating little skewing towards one cadre. LoA of adherence and morning and evening ART dosages varied from −24% to 24%, −0.4 to 0.4 and −0.41 to 0.40 tablets, respectively, with mean differences (95% CI) of 0.003 (−0.9, 0.91), −0.005 (−0.02, 0.01) and −0.009 (−0.02, 0.01). Next appointment calculations differed more between cadres with LoA from −40 to 42 days [mean difference: 0.96 days (95% CI:−0.6 to 2.5)], but agreement in the ART formulation prescribed was very good (kappa 0.93).

Conclusions

Nurses’ ART prescribing practices and calculations of adherence and next appointments are similar to clinical officers, although clinical officers used an electronic system. Our findings support the decision of Malawi's health officials to utilize nurses to manage paediatric ART patients.

Terms used in patient safety related to medication: a literature review

PURPOSE

There is a lack of homogeneity in the terminology used in the context of patient safety related to medication. The aim of this review was to identify the terms and definitions used in patient safety related to medication within the scientific literature.

METHODS

Original and review articles that were indexed between 1998 and 2008 in MEDLINE and EMBASE and contained terms used in patient safety related to medication were included. Terms and definitions were extracted and categorised according to whether its definition referred to the process of medication use, or to the clinical outcome of medication use, or both.

RESULTS

Of 2564 articles, 147 were included. Sixty terms used in patient safety related to medication with 189 different definitions were identified. Among terms that referred only to the process of medication use (n = 23), medication error provided the greatest number of definitions (n = 29). Among terms that referred only to the clinical outcome of medication use (n = 31), adverse drug event provided the greatest number of definitions (n = 15). Finally, among terms that referred both to the process of use and to the clinical outcome of medication use (n = 13), drug-related problem provided the greatest number of definitions (n = 7).

CONCLUSIONS

A multitude of terms and definitions are used in patient safety related to medication. This heterogeneity makes it difficult to compare the results among studies and to appreciate the true magnitude of the problem. Classifying and unifying the terminology is necessary to advance in patient safety strategies.

Epidemiology and potential associated risk factors of drug-related problems in hospitalised children in the United Kingdom and Saudi Arabia

AIM

Drug-related problems (DRP) are "an event or circumstance involving drug therapy that actually or potentially interferes with the desired health outcome". The extent and characteristics of DRPs in children in the UK and the Kingdom of Saudi Arabia (KSA) are unknown. Our aim was to determine the epidemiology of and identify risk factors for DRPs in hospitalised children.

METHODS

A prospective cohort study was carried out in children aged 0-18 years, admitted to the medical ward, paediatric intensive care unit (PICU) and neonatal intensive care unit (NICU) during a 3-month period in two hospitals. Patients' charts, medical records and laboratory data were reviewed daily to identify DRPs; their preventability and severity were assessed. Logistic regression was used to analyse the potential risk factors associated with DRP incidence.

RESULTS

Seven hundred and thirty-seven children (median age 2.3 years, interquartile range 6 months to 8 years, 58.1% male) were included. Three hundred and thirty-three patients suffered from 478 DRPs. Overall DRP incidence was 45.2% (95% CI, 41.5-48.8); KSA (51.1%; 95% CI, 45.8-56.3), UK (39.4%; 95% CI, 34.4-44.6). Incidence was highest in the PICU (59.7%; 95% CI, 47.0-71.5). Dosing problems were the most frequently reported DRPs (n = 258, 54%). 80.3% of DRP (n = 384) cases were preventable; 72.2% (n = 345) of DRPs were assessed as minor; 27% (n = 129) as moderate. Number of prescriptions and type of admission (transferred) were potential risk factors for DRP occurrence in children.

CONCLUSIONS

Drug-related problems were common in the hospitalised children in this study; the most frequent were dosing problems and drug choice problems; the majority of them were preventable. Polypharmacy and transferred admission (another hospital or ward) were potential risk factors. To improve prescribing practices and minimise the risk of DRPs in hospitalised children, paediatric pharmacology and pharmacotherapy are important in medical education.

Long-term reduction in adverse drug events: an evidence-based improvement model

OBJECTIVES

To develop and test an evidence-based model for reducing medication errors and harm in hospitalized children.

METHODS

Prospective interrupted time series study evaluating the effectiveness of a multifaceted, staged intervention over 4 years in a major urban pediatric referral hospital. Guidelines for safe pediatric prescribing were implemented by using an evidence-based model. Key components included early clinician engagement and improved multidisciplinary communication, consensus development, interactive education, and timely data feedback by using iterative Plan-Do-Study-Act cycles. Impact on medication error and harm (adverse drug events, [ADEs]) was measured by using standard definitions and a multimethod approach. Prospective data from voluntary reports by nursing, medical, and pharmacy staff and intensive chart review were combined. All data were reviewed by a multidisciplinary panel, including causality assessments for ADEs.

RESULTS

Reviewed over 3 time periods were 1011 patients with 6651 medication orders. Total ADEs decreased by > 50% in the first year and this was maintained at 4 years. Greatest improvements were in potential ADEs, which decreased from 12.26 per 100 patients at baseline to 4.60 per 100 patients at 4 years (P < .05). Total medication errors decreased from 4.51 per 100 orders at baseline to 2.78 per 100 orders at 4 years (P < .05). Prescribing errors decreased by 65%, from 4.07 per 100 orders at baseline to 2.05 orders at 4 years (P < .05).

CONCLUSIONS

A multifaceted, evidence-based model for safe prescribing guideline implementation, engaging multidisciplinary clinicians, was effective in reducing medication error and harm in hospitalized children, resulting in sustained long-term improvement.

Evaluation of drug administration errors in a teaching hospital

Background

Medication errors can occur at any of the three steps of the medication use process: prescribing, dispensing and administration. We aimed to determine the incidence, type and clinical importance of drug administration errors and to identify risk factors.

Methods

Prospective study based on disguised observation technique in four wards in a teaching hospital in Paris, France (800 beds). A pharmacist accompanied nurses and witnessed the preparation and administration of drugs to all patients during the three drug rounds on each of six days per ward. Main outcomes were number, type and clinical importance of errors and associated risk factors. Drug administration error rate was calculated with and without wrong time errors. Relationship between the occurrence of errors and potential risk factors were investigated using logistic regression models with random effects.

Results

Twenty-eight nurses caring for 108 patients were observed. Among 1501 opportunities for error, 415 administrations (430 errors) with one or more errors were detected (27.6%). There were 312 wrong time errors, ten simultaneously with another type of error, resulting in an error rate without wrong time error of 7.5% (113/1501). The most frequently administered drugs were the cardiovascular drugs (425/1501, 28.3%). The highest risks of error in a drug administration were for dermatological drugs. No potentially life-threatening errors were witnessed and 6% of errors were classified as having a serious or significant impact on patients (mainly omission). In multivariate analysis, the occurrence of errors was associated with drug administration route, drug classification (ATC) and the number of patient under the nurse's care.

Conclusion

Medication administration errors are frequent. The identification of its determinants helps to undertake designed interventions.

Prescribing errors intercepted by clinical pharmacists in paediatrics and obstetrics in a tertiary hospital in Spain

PURPOSE

To assess the main differences in clinical significance of the prescribing errors intercepted by clinical pharmacists in paediatrics and obstetrics and the reasons for these prescribing errors, as well as the differences in pharmacists' activity indicators.

METHODS

The was a cross-sectional epidemiological study analysing the activities of paediatric pharmacists in a maternity and children's hospital with 180 paediatric beds and 138 obstetrics and gynaecology beds between January 2007 and December 2009. The following variables were analysed: clinical significance of prescribing errors intercepted, reason for the error, impact of the intervention by pharmacist, acceptance rate of the recommendation made, medication involved, intervention detection date and observations.

RESULTS

A total of 2,449 interventions in medical orders were recorded. Interventions that were not accepted by doctors were excluded, leaving 43 cases (2.1%) of extremely significant interventions and 170 (8.4%) very significant interventions. Interventions in what were deemed to be error-free situations were excluded. Significance testing (based on 2,035 errors detected) showed that 1.7% of the detected errors were potentially lethal (35 cases), while 10.2% (210 cases) were clinically serious. The main reason for the interventions was the detection of a dosage between 1.5- and tenfold higher than the recommended dosage. The overall rate of acceptance of the pharmacist's suggestions was 92.2%. Pharmacists carried out an average of 0.016 interventions/patient-day throughout the study period.

CONCLUSIONS

Paediatric patients had a fourfold higher risk of serious errors than the maternity population. Pharmacist intervention had a major impact on reducing prescribing errors in the study period, thus improving the quality and efficiency of care provided.

The safety of pediatric acupuncture: a systematic review

CONTEXT

Acupuncture is increasingly used in children; however, the safety of pediatric acupuncture has yet to be reported from systematic review.

OBJECTIVE

To identify adverse events (AEs) associated with needle acupuncture in children.

METHODS

Eighteen databases were searched, from inception to September 2010, irrespective of language. Inclusion criteria were that the study (1) was original peer-reviewed research, (2) included children from birth to 17 years, inclusively, (3) involved needle acupuncture, and (4) included assessment of AEs in a child. Safety data were extracted from all included studies.

RESULTS

Of 9537 references identified, 450 were assessed for inclusion. Twenty-eight reports were included, and searches of reference lists identified 9 additional reports (total: 37). A total of 279 AEs were identified, 146 from randomized controlled trials, 95 from cohort studies, and 38 from case reports/series. Of the AEs, 25 were serious (12 cases of thumb deformity, 5 infections, and 1 case each of cardiac rupture, pneumothorax, nerve impairment, subarachnoid hemorrhage, intestinal obstruction, hemoptysis, reversible coma, and overnight hospitalization), 1 was moderate (infection), and 253 were mild. The mild AEs included pain, bruising, bleeding, and worsening of symptoms. We calculated a mild AE incidence per patient of 168 in 1422 patients (11.8% [95% confidence interval: 10.1-13.5]).

CONCLUSIONS

Of the AEs associated with pediatric needle acupuncture, a majority of them were mild in severity. Many of the serious AEs might have been caused by substandard practice. Our results support those from adult studies, which have found that acupuncture is safe when performed by appropriately trained practitioners.

Antibiotic prescribing in ambulatory pediatrics in the United States

BACKGROUND

Antibiotics are commonly prescribed for children with conditions for which they provide no benefit, including viral respiratory infections. Broad-spectrum antibiotic use is increasing, which adds unnecessary cost and promotes the development of antibiotic resistance.

OBJECTIVE

To provide a nationally representative analysis of antibiotic prescribing in ambulatory pediatrics according to antibiotic classes and diagnostic categories and identify factors associated with broad-spectrum antibiotic prescribing.

PATIENTS AND METHODS

We used the National Ambulatory and National Hospital Ambulatory Medical Care surveys from 2006 to 2008, which are nationally representative samples of ambulatory care visits in the United States. We estimated the percentage of visits for patients younger than 18 years for whom antibiotics were prescribed according to antibiotic classes, those considered broad-spectrum, and diagnostic categories. We used multivariable logistic regression to identify demographic and clinical factors that were independently associated with broad-spectrum antibiotic prescribing.

RESULTS

Antibiotics were prescribed during 21% of pediatric ambulatory visits; 50% were broad-spectrum, most commonly macrolides. Respiratory conditions accounted for >70% of visits in which both antibiotics and broad-spectrum antibiotics were prescribed. Twenty-three percent of the visits in which antibiotics were prescribed were for respiratory conditions for which antibiotics are not clearly indicated, which accounts for >10 million visits annually. Factors independently associated with broad-spectrum antibiotic prescribing included respiratory conditions for which antibiotics are not indicated, younger patients, visits in the South, and private insurance.

CONCLUSIONS

Broad-spectrum antibiotic prescribing in ambulatory pediatrics is extremely common and frequently inappropriate. These findings can inform the development and implementation of antibiotic stewardship efforts in ambulatory care toward the most important geographic regions, diagnostic conditions, and patient populations.

Medication dosing errors in pediatric patients treated by emergency medical services

BACKGROUND

Medication dosing errors occur in up to 17.8% of hospitalized children. There are limited data to describe pediatric medication errors by emergency medical services (EMS) paramedics. It has been shown that paramedics have infrequent encounters with pediatric patients.

OBJECTIVE

To characterize medication dosing errors in children treated by EMS.

METHODS

We studied patients aged ≤11 years who were treated by paramedics from eight Michigan EMS agencies from January 2004 through March 2006. We defined a medication dosing error as ≥20% deviation from the weight-appropriate dose, as determined by the patient's reported weight in the prehospital medical record or by use of the Broselow-Luten tape (BLT). We studied errors in administering six EMS medications commonly given to children: albuterol, atropine, dextrose, diphenhydramine, epinephrine, and naloxone.

RESULTS

There were 5,547 children aged ≤11 years who were treated during the study period, of whom 230 (4.1%) received drugs and had a documented weight. These patients received a total of 360 medication administrations. Multiple drug administrations occurred in 73 cases. Medication dosing errors occurred in 125 of the 360 drug administrations (34.7%; 95% confidence interval [CI] 30.0, 39.8). Relative drug dosage errors (with 95% CI) were as follows: albuterol 23.3% (18.4, 29.1), atropine 48.8% (34.3, 63.5), diphenhydramine 53.8% (29.1, 76.8), and epinephrine 60.9% (49.9, 73.9). The mean error (± standard deviation) for intravenous/intraosseous 1:1000 epinephrine overdoses was 808% ± 428%. The mean error (± standard deviation) for intravenous/intraosseous 1:1000 epinephrine underdoses was 35.5% ± 27.4%.

CONCLUSIONS

Medications delivered in the prehospital care of children were frequently administered outside of the proper dose range when compared with patient weights recorded in the prehospital medical record. EMS systems should develop strategies to reduce pediatric medication dosing errors.

Reducing prescribing errors in the paediatric intensive care unit: an experience from Egypt

AIM

To investigate the impact of different measures, implemented by clinical pharmacists, on prescribing error rates in a paediatric intensive care unit (PICU) in Cairo, Egypt.

METHODS

We performed a pre-post study of prescribing errors in a 12 bed PICU. We utilized a chart review method for the detection of prescribing errors. The rate and potential severity of prescribing errors were determined before and then after the implementation of the medication error reducing measures. These measures included the use of a new structured medication order chart, physician education, provision of dosing assists and physician performance feedback.

RESULTS

We evaluated 1417 medication orders for 139 patients preintervention and 1097 orders for 101 patients postintervention. Of preintervention orders, 1107 (78.1%) had at least one prescribing error. The intervention resulted in significant reduction in prescribing error rate to 35.2% postintervention (p < 0.001). The intervention resulted also in a significant reduction in the rate of potentially severe errors from 29.7% preintervention to 7% postintervention (p < 0.001) and the rate of potentially moderate errors from 39.8% preintervention to 24.2% postintervention (p < 0.001). Besides, rates of all types of prescribing errors were declined to different degrees as a result of the intervention.

CONCLUSION

Clinical pharmacists' activities, focusing on improving physician-nurse communication, physician drug knowledge and awareness of errors, were shown effective in reducing the rate of prescribing errors and their potential severity in a PICU.

Medication prescribing errors in a pediatric inpatient tertiary care setting in Saudi Arabia

BACKGROUND

Medication errors (MEs) are among the most common types of medical errors and one of the most common and preventable causes of iatrogenic injuries. The aims of the present study were; (i) to determine the incidence and types of medication prescribing errors (MPEs), and (ii) to identify some potential risk factors in a pediatric inpatient tertiary care setting in Saudi Arabia.

FINDINGS

A five-week retrospective cohort study identified medication errors in the general pediatric ward and pediatric intensive care unit (PICU) at King Abdulaziz Medical City (KAMC) through the physical inspection of physician medication orders and reviews of patients' files. Out of the 2,380 orders examined, the overall error rate was 56 per 100 medication orders (95% CI: 54.2%, 57.8%). Dose errors were the most prevalent (22.1%). These were followed by route errors (12.0%), errors in clarity (11.4%) and frequency errors (5.4%). Other types of errors were incompatibility (1.9%), incorrect drug selection (1.7%) and duplicate therapy (1%). The majority of orders (81.8%) had one or more abbreviations. Error rates were highest in prescriptions for electrolytes (17.17%), antibiotics (13.72%) and bronchodilators (12.97%). Medication prescription errors occurred more frequently in males (64.5%), infants (44.5%) and for medications with an intravenous route of administration (50.2%). Approximately one third of the errors occurred in the PICU (33.9%).

CONCLUSIONS

The incidence of MPEs was significantly high. Large-scale prospective studies are recommended to determine the extent and outcome of medication errors in pediatric hospitals in Saudi Arabia.

The contribution of labelling to safe medication administration in anaesthetic practice

The administration of medications is central to anaesthetists' care of patients. Errors are inevitable in any human endeavour, but should be distinguished from violations. The incidence of medication errors in anaesthesia has been estimated as 1 per 13,000 administrations, excluding errors in recording. Adverse medication events follow a proportion of these errors. Labelling is a key element of medication safety. There is a long-standing need for improvements in the labelling of ampoules and vials. An international standard exists for labelling syringes used during anaesthesia (ISO 26825). Australia has recently released national recommendations for labelling lines and injectable medications that complement this and other relevant standards. The provision of at least some medications in pre-filled syringes would reduce the number of steps involved in medication administration, increase the certainty that syringe labels are correct and probably reduce medication errors. Pre-printed, peel-off flag labels on ampoules and vials are a less expensive alternative to pre-filled syringes to facilitate correct labelling. The medication name on user-applied labels should be matched to that on the relevant ampoule or vial at the time of drawing up any medication. All lines and catheters should be labelled. Any medicine or fluid that cannot be identified (e.g., in an unlabelled syringe or other container) should be considered unsafe and discarded. Reducing adverse medication events will require the engagement of individual anaesthetists.

Medication errors--new approaches to prevention

Medication errors in pediatric anesthesia represent an important risk to children. Concerted action to reduce harm from this cause is overdue. An understanding of the genesis of avoidable adverse drug events may facilitate the development of effective countermeasures to the events or their effects. Errors include those involving the automatic system of cognition and those involving the reflective system. Errors and violations are distinct, but violations often predispose to error. The system of medication administration is complex, and many aspects of it are conducive to error. Evidence-based practices to reduce the risk of medication error in general include those encompassed by the following recommendations: systematic countermeasures should be used to decrease the number of drug administration errors in anesthesia; the label on any drug ampoule or syringe should be read carefully before a drug is drawn up or injected; the legibility and contents of labels on ampoules and syringes should be optimized according to agreed standards; syringes should always be labeled; formal organization of drug drawers and workspaces should be used; labels should be checked with a second person or a device before a drug is drawn up or administered. Dosage errors are particularly common in pediatric patients. Causes that should be addressed include a lack of pediatric formulations and/or presentations of medication that necessitates dilution before administration or the use of intravenous formulations for oral administration in children, a frequent failure to obtain accurate weights for patients and a paucity of pharmacokinetic and pharmacodynamic data. Technological innovations, including the use of bar codes and various cognitive aids, may facilitate compliance with these recommendations. Improved medication safety requires a system-wide strategy standardized at least to the level of the institution; it is the responsibility of institutional leadership to introduce such strategies and of individual practitioners to engage in them.

Frequency of pediatric medication administration errors and contributing factors

This study examined the frequency of pediatric medication administration errors and contributing factors. This research used the undisguised observation method and Critical Incident Technique. Errors and contributing factors were classified through the Organizational Accident Model. Errors were made in 36.5% of the 2344 doses that were observed. The most frequent errors were those associated with administration at the wrong time. According to the results of this study, errors arise from problems within the system.

Concomitant prescribing and dispensing errors at a Brazilian hospital: a descriptive study

OBJECTIVE

To analyze the prevalence and types of prescribing and dispensing errors occurring with high-alert medications and to propose preventive measures to avoid errors with these medications.

INTRODUCTION

The prevalence of adverse events in health care has increased, and medication errors are probably the most common cause of these events. Pediatric patients are known to be a high-risk group and are an important target in medication error prevention.

METHODS

Observers collected data on prescribing and dispensing errors occurring with high-alert medications for pediatric inpatients in a university hospital. In addition to classifying the types of error that occurred, we identified cases of concomitant prescribing and dispensing errors.

RESULTS

One or more prescribing errors, totaling 1,632 errors, were found in 632 (89.6%) of the 705 high-alert medications that were prescribed and dispensed. We also identified at least one dispensing error in each high-alert medication dispensed, totaling 1,707 errors. Among these dispensing errors, 723 (42.4%) content errors occurred concomitantly with the prescribing errors. A subset of dispensing errors may have occurred because of poor prescription quality. The observed concomitancy should be examined carefully because improvements in the prescribing process could potentially prevent these problems.

CONCLUSION

The system of drug prescribing and dispensing at the hospital investigated in this study should be improved by incorporating the best practices of medication safety and preventing medication errors. High-alert medications may be used as triggers for improving the safety of the drug-utilization system.

Pharmacists' Perceived Knowledge and Expertise in Selected Pediatric Topics

OBJECTIVES

The purpose of this study is to determine pharmacists' perceived knowledge and expertise required to make recommendations regarding selected pediatric topics.

METHODS

A questionnaire was distributed to 400 pharmacists practicing in community, hospital, and home care settings. This instrument explored their perceived knowledge, expertise, and comfort in providing recommendations related to 38 pediatric topics. The impact of responder demographics on differences in perceived knowledge and expertise for each topic were evaluated.

RESULTS

Ninety-five of 400 (24%) questionnaires were returned completed or partially completed. Forty-seven and 36 of responders practiced in the community or inpatient hospital setting, respectively. Seventy percent of responders reported that ≤ 40% of their patients were children. In general, responders believed they had the knowledge and expertise to make recommendations for the frequently occurring conditions or topics but not for the less familiar. Formal pediatric training was the most influential responder characteristic with a larger proportion having training that they believed enables them to have knowledge and expertise to make recommendations. Although less impressive, experience of more than 5 years and a community-based practice were also important factors.

CONCLUSION

Additional training is beneficial in increasing the perceived knowledge and comfort of pharmacists making recommendations regarding pediatric patients.

Medication administration errors and the pediatric population: a systematic search of the literature

There are a variety of factors that make the pediatric population more susceptible to medication errors and potential complications resulting from medication administration including the availability of different dosage forms of the same medication, incorrect dosing, lack of standardized dosing regimen, and organ system maturity. A systematic literature search on medication administration errors in the pediatric population was conducted. Five themes obtained from the systematic literature search include incidence rate of medication administration errors; specific medications involved in medication administration errors and classification of the errors; why medication administration errors occur; medication error reporting; and interventions to reduce medication errors.

Nighttime and Weekend Medication Error Rates in an Inpatient Pediatric Population

Background:

Nighttime and weekend admission has been associated with increased morbidity and mortality and has been linked to a variety of factors. Medication errors in hospitalized patients occur frequently, but the association between error rates and time of day and day of week (weekday vs weekend) has not been extensively studied.

Objective:

To compare reported medication error rates over a 1-year period between daytime versus nighttime shifts and weekday versus weekend in a children's hospital and to characterize the types of errors that occurred.

Methods:

One hundred forty errors reported between January and December 2008 were retrospectively reviewed and classified by error type and severity according to established standards. Two investigators independently classified errors, and a third investigator with pediatric pharmacy expertise resolved discrepancies. Data on doses dispensed were collected from pharmacy records.

Results:

Over the study period, the reported error rate during daytime nursing shifts was 1.17 errors per 1000 doses dispensed versus 2.12 errors per 1000 doses dispensed for nighttime nursing shifts (p = 0.005). The error rates during pharmacy shifts (1st, 2nd, and 3rd) were 1.01, 2.24, and 1.88 per 1000 doses dispensed, respectively (p = 0.0019). Reported errors for weekday versus weekend were 1.9 errors per 1000 weekday doses versus 2.55 errors per 1000 doses, respectively (p = 0.181), and error rate for weekend shifts relative to first shift on weekdays was greater (p = 0.0004). Errors in medication administration, followed by dispensing errors, occurred most frequently.

Conclusions:

There was an increase in medication error rate during evening and nighttime shifts relative to day shift and during weekends relative to weekdays at this institution. Additional studies to validate this finding are needed; however, error prevention efforts should be instituted now for evening, nighttime, and weekend medication dispensing and administration.

Merits of using color and shape differentiation to improve the speed and accuracy of drug strength identification on over-the-counter medicines by laypeople

OBJECTIVE

This study aimed to examine the utility of using color and shape to differentiate drug strength information on over-the-counter medicine packages. Medication errors are an important threat to patient safety, and confusions between drug strengths are a significant source of medication error.

METHOD

A visual search paradigm required laypeople to search for medicine packages of a particular strength from among distracter packages of different strengths, and measures of reaction time and error were recorded.

RESULTS

Using color to differentiate drug strength information conferred an advantage on search times and accuracy. Shape differentiation did not improve search times and had only a weak effect on search accuracy.

CONCLUSIONS

Using color to differentiate drug strength information improves drug strength identification performance. Color differentiation of drug strength information may be a useful way of reducing medication errors and improving patient safety.

Drug administration errors in paediatric wards: a direct observation approach

Paediatric patients are more vulnerable to drug administration errors due to a lack of appropriate drug dosages and strengths for use in this group of patients. Therefore, the aim of the present study was to determine the extent and types of drug administration errors in two paediatric wards and to identify measures to reduce such errors. A researcher was stationed in two paediatric wards of a teaching hospital to observe all drugs administered to paediatric inpatients in each of the ward, for 1 day in a week over ten consecutive weeks. All data were recorded in a data collection form and then compared with the actual drugs and dosages prescribed for the patients. Of the 857 drug administrations observed, 100 doses had errors, and this gave an error rate of 11.7% [95% confidence interval (CI) 9.5-13.9%]. If wrong time administration errors were excluded, the error rate reduced to 7.8% (95% CI 6.0-9.6%). The most common types of drug administration errors were incorrect time of administration (28.8%), followed by incorrect drug preparation (26%), omission errors (16.3%) and incorrect dose (11.5%). None of the errors observed were considered as potentially life threatening, although 40.4% could possibly cause patient harm. Drug administration errors are as common in paediatric wards in Malaysia as in other countries. Double-checking should be conducted, as this could reduce drug administration errors by about 20%, but collaborative efforts between all healthcare professionals are essential.