4,232 research outputs found

    Medication safety in intravenous drug administration : error causes and systemic defenses in hospital setting

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    Intravenous administration of drugs is associated with the highest medication error frequencies and more serious consequences to the patient than any other administration route. The bioavailability of intravenously administered medication is high, the therapeutic dose range is often narrow, and effects are hard to undo. Many intravenously administered drugs are high-alert medications, bearing a heightened risk of causing significant patient harm if used in error. Smart infusion pumps with dose error-reduction software can be used to prevent harmful medication errors in high-risk clinical settings, such as neonatal intensive care units. This study investigated intravenous medication safety in hospital settings by identifying recent research evidence related to systemic causes of medication errors (Study I) and systemic defenses to prevent these errors (Study II). The study also explored the development of dose-error reduction software in a neonatal intensive care unit (Study III). A systems approach to medication risk management based on the Theory of Human Error was applied as a theoretical framework. The study was conducted in two phases. In the first phase, a systematic review of recent research evidence on systemic causes of intravenous medication errors (Study I) and systemic defenses aiming to prevent these errors (Study II) was carried out. In Study I, 11 studies from six countries were included in the analysis. Systemic causes related to prescribing (n=6 studies), preparation (n=6), administration (n=6), dispensing and storage (n=5) and treatment monitoring (n=2) were identified. Insufficient actions to secure safe use of high-alert medications, lack of knowledge of the drug, failures in calculation tasks and in double-checking procedures, and confusion between look-alike, sound-alike medications were the leading causes of intravenous medication errors. The number of the included studies was limited, all of them being observational studies and graded as low quality. In Study II, 46 studies from 11 countries were included in the analysis. Systemic defenses related to administration (n=24 studies), prescribing (n=8), preparation (n=6), treatment monitoring (n=2), and dispensing (n=1) were identified. In addition, five studies explored defenses related to multiple stages of the medication use process. Defenses including features of closed-loop medication management systems appeared in 61% of the studies, smart pumps being the defense most widely studied (24%). The evidence quality of the included articles was limited, as 83% were graded as low quality, 13% moderate quality, and only 4% high quality. A mixed-methods study was conducted in the second phase, applying qualitative and quantitative methods (Study III). Medication error reports were used to develop simulation-type test cases to assess the suitability of dosing limits in a neonatal intensive care unit’s smart infusion pump drug library. Of all medication errors reported in the neonatal intensive care unit, 3.5% (n=21/601) involved an error or near-miss related to wrong infusion rate. Based on the identified error mechanisms, 2-, 5-, and 10-fold infusion rates and mix-ups between infusion rates of different drugs were established as test cases. When conducting the pump programming for the test cases (n=226), no alerts were triggered with infusion rates responding to the usual dosages (n=32). Of the erroneous 2-, 5-, and 10-fold infusion rates, 73% (n = 70/96) caused an alert. Mix-ups between infusion rates triggered an alert only in 24% (n=24/98) of the test cases. This study provided an overview of recent research evidence related to intravenous medication safety in hospital settings. Current intravenous medication systems remain vulnerable, which can result in patient harm. While in-hospital intravenous medication use processes are developing towards closed-loop medication management systems, combinations of different defenses and their effectiveness in error prevention should be explored. In addition to improved medication safety, implementing new systemic defenses leads to new error types, emphasizing the importance of continuous proactive risk management as an essential part of clinical practice.Laskimonsisäiseen lääkkeen annosteluun liittyy merkittävä lääkityspoikkeamien ja vakavien haittatapahtumien riski. Sairaaloissa käytetään useita laskimoon annosteltavia suuren riskin lääkkeitä, joiden virheellinen käyttö johtaa muita lääkkeitä todennäköisemmin vakaviin haittoihin. Tässä tutkimuksessa tunnistettiin järjestelmällisen kirjallisuuskatsauksen perusteella lääkityspoikkeamien järjestelmälähtöisiä syitä (osatyö I) sekä lääkehoitoprosessin suojauksia (osatyö II). Lisäksi tutkittiin älyinfuusiopumppujen käyttöönottoa vastasyntyneiden teho-osastolla. Teoreettisena viitekehyksenä käytettiin inhimillisen erehdyksen teoriaa ja järjestelmänäkökulmaa lääkehoitoprosessin riskien hallinnassa. Osatyön I aineistosta (n=11 tutkimusta) tunnistettiin lääkityspoikkeamien syntyyn vaikuttavia järjestelmälähtöisiä syitä, jotka liittyivät lääkehoidon määräämiseen (n=6), käyttökuntoon saattoon (n=6), antoon (n=6), jakeluun ja varastointiin (n=5) sekä seurantaan (n=2). Yleisimpiä syitä olivat riittämättömät toimenpiteet suuren riskin lääkkeiden turvallisen käytön varmistamisessa, ammattilaisten heikot tiedot lääkkeistä, virheet laskutoimituksissa ja kaksoistarkistuksissa sekä toisiltaan näyttävien ja kuulostavien lääkkeiden sekaantuminen keskenään. Osatyön II aineistossa (n=46 tutkimusta) kuvattiin lääkehoitoprosessin suojauksia, jotka liittyivät lääkkeiden annosteluun (n=24), määräämiseen (n=8), käyttökuntoon saattoon (n=6), hoidon seurantaan (n=2) ja jakeluun (n=1). Lisäksi viidessä tutkimuksessa kuvattiin useaan lääkehoitoprosessin vaiheeseen liittyviä suojauksia. Katkeamattoman lääkehoitoprosessin piirteitä tunnistettiin 61 prosentissa tutkimuksista ja älyinfuusiopumput olivat eniten tutkittu suojaus (24 %). Osatyö III toteutettiin monimenetelmätutkimuksena. Vastasyntyneiden teho-osastolla raportoitujen lääkityspoikkeamien pohjalta kehitettiin simulaatiotyyppisiä testitapauksia, joilla arvioitiin annosrajojen sopivuutta älyinfuusiopumppujen lääkekirjastoon. Lääkityspoikkeamista 3,5 % (n=21/601) liittyi väärään infuusionopeuteen ja niiden perusteella testitapauksiksi määritettiin 2-, 5- ja 10-kertaiset infuusionopeudet sekä eri lääkkeiden antonopeuksien sekaantuminen keskenään. Testitapauksissa (n=226) infuusiopumput eivät hälyttäneet tavanomaisia nopeuksia ohjelmoitaessa (n=32), mutta virheellisistä infuusionopeuksista 73 % (n=70/96) aiheutti hälytyksen. Nopeuksien sekaantuminen keskenään laukaisi hälytyksen vain 24 %:ssa (n=24/98) testitapauksista. Sairaaloiden laskimonsisäinen lääkehoitoprosessi kehittyy kohti katkeamatonta lääkehoitoprosessia, mutta se on edelleen altis lääkityspoikkeamille. Kirjallisuuskatsauksiin sisällytettyjen tutkimusten laatu oli pääosin heikko, joten lääkityspoikkeamien riskitekijöitä ja suojauksia tulee edelleen tutkia yhä laadukkaammissa tutkimusasetelmissa. Uusien suojausten käyttöönotto muuttaa myös riskikohtia, mikä korostaa ennakoivan riskienhallinnan merkitystä osana sairaaloiden toimintaa

    Standardization and use of colour for labelling of injectable drugs

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    Medication errors are one of the most common causes of patient injuries in healthcare systems. Poor labelling has been identified as a contributing factor of medication errors, particularly for those involving injectable drugs. Colour coding and colour differentiation are two major techniques being used on labels to aid drug identification. However, neither approach has been scientifically proven to minimize the occurrence of or harm from medication errors. This thesis investigates potential effects of different approaches for using colour on standardized labels on the task of identifying a specific drug from a storage area via a controlled experiment involving human users. Three different ways of using colour were compared: labels where only black, white and grey are used; labels where a unique colour scheme adopted from an existing manufacturer’s label is applied to each drug; colour coded labels based on the product’s strength level within the product line. The results show that people might be vulnerable to confusion from drugs that have look-alike labels and also have look-alike, sound-alike drug names. In particular, when each drug label had a fairly unique colour scheme, participants were more prone to misperceive the look-alike, sound-alike drug name as the correct drug name than when no colour was used or when colour was used on the labels with no apparent one-to-one association between the label colour and the drug identity. This result could suggest a perceptual bias to perceive stimuli as the expected stimuli especially when the task involved is familiar and the stimuli look similar to the expected stimuli. Moreover, the results suggest a potential problem that may arise from standardizing existing labels if careful consideration is not given to the effects of reduced visual variations among the labels of different products on how the colours of the labels are perceived and used for drug identification. The thesis concludes with recommendations for improving the existing standard for labelling of injectable drug containers and for avoiding medication errors due to labelling and packaging in general

    A Comprehensive Survey on Rare Event Prediction

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    Rare event prediction involves identifying and forecasting events with a low probability using machine learning and data analysis. Due to the imbalanced data distributions, where the frequency of common events vastly outweighs that of rare events, it requires using specialized methods within each step of the machine learning pipeline, i.e., from data processing to algorithms to evaluation protocols. Predicting the occurrences of rare events is important for real-world applications, such as Industry 4.0, and is an active research area in statistical and machine learning. This paper comprehensively reviews the current approaches for rare event prediction along four dimensions: rare event data, data processing, algorithmic approaches, and evaluation approaches. Specifically, we consider 73 datasets from different modalities (i.e., numerical, image, text, and audio), four major categories of data processing, five major algorithmic groupings, and two broader evaluation approaches. This paper aims to identify gaps in the current literature and highlight the challenges of predicting rare events. It also suggests potential research directions, which can help guide practitioners and researchers.Comment: 44 page

    The value of community pharmacy incident reporting in optimising the safety and quality use of medicines

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    Medication safety has emerged as a healthcare priority with the launch of the World Health Organization’s third global patient safety challenge. Understanding the complex interplay between human and system factors that potentiate medication incidents can illuminate improvement opportunities in organisational safeguards and safe medication practices. This thesis aimed to develop, implement, and evaluate systematic incident reporting system (IRS) to identify, characterise and address risks to medication safety and quality use of medicines (QUM) in primary care. The study was conducted in 30-community pharmacies in Sydney, Australia, through a confidential and anonymous IRS called QUMwatch. The study used the Advanced Incident Management System (AIMS) taxonomy, which is a hierarchical classification system based on error theory. Analysis of 1,013 incident reports collected over 30 months, identified medication incidents (MIs) that affected patients over 65 years old, the prescribing stage, and medicines acting on the cardiovascular and nervous systems. Human, task, and organisational factors contributed to MIs, particularly healthcare providers' cognitive errors, communication problems, poor risk management, and safety culture. Factors that facilitated error recovery included individual attributes, appropriate intervention, effective communication, and the use of standardised protocols. Remedial actions included changes in care plans, dosages, reviews of medicines, and medicine cessation. The study evaluated the QUMwatch program's tools and methods using a mixed-methods approach and found that 16 out of 20 variables on the data collection form had over 90% complete data, and data consistency was high. Anonymity was the preferred method of reporting. The stimulatory package significantly raised the reporting rate from a baseline average of 32.4 to 77.3 reports/month (p < .001). The AIMS taxonomy for MIs had substantial validity for high-order medication processes for the Australian community pharmacy context. The study demonstrated the feasibility of a well-designed IRS in community pharmacy to identify MIs and to generate safety lessons and recommendations

    Healthcare Incident Reporting: The Impacts of Usability of Input Interfaces, Usability of Resulting Data, and Attitudes Towards Reporting

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    Research into improving the safety of healthcare systems has recently focused on learning how incidents of harm to patients happen and how to prevent them. Although it is acknowledged that low participation in incident-reporting systems contributes to the problem of poor error prevention, little research has focused on improving participation. This research is focused on how both participation in and use of incident-reporting systems can be improved by examining the usability of the reporting tools. A large private hospital in the northeastern United States and the incident reporting app used there were examined as a case study. A mixed-methods approach using Critical Decision Method interviews, heuristic usability tests, and surveys was used. Seemingly minor usability issues like inconvenient and hard to read menus were found to inhibit both the quantity and quality of incident reports. Additionally, despite the organization having a generally strong safety culture, there were organizational obstacles to the reporting of incidents and the adoption of useful interventions in response to incidents beyond what is normally encompassed by the term “safety culture”. Specific recommendations for hospital incident reporting process improvement are included

    Word for Word PDF Book

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    This volume is a collection of columns from Word for Word, a blog providing advice on correct, precise word usage and other tips for biomedical writers. The blog is written and edited by members of Scientific Publications at The University of Texas MD Anderson Cancer Center. Each column represents the consensus of Scientific Publications’ editors and their hundreds of collective years of editorial experience. Columns from 2011 through 2017 are included in this updated edition and are arranged alphabetically by title. This is not intended to be a comprehensive grammar or style guidehttps://openworks.mdanderson.org/pdfbook/1000/thumbnail.jp
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