Purpose: The aims of this study were to investigate how a variety of research methods is commonly employed to study technology and practitioner cognition. User-interface issues with infusion pumps were selected as a case because of its relevance to patient safety. Methods: Starting from a Cognitive Systems Engineering perspective, we developed an Impact Flow Diagram showing the relationship of computer technology, cognition, practitioner behavior, and system failure in the area of medical infusion devices. We subsequently conducted a systematic literature review on user-interface issues with infusion pumps, categorized the studies in terms of methods employed, and noted the usability problems found with particular methods. Next, we assigned usability problems and related methods to the levels in the Impact Flow Diagram. Results: Most study methods used to find user interface issues with infusion pumps focused on observable behavior rather than on how artifacts shape cognition and collaboration. A concerted and theorydriven application of these methods when testing infusion pumps is lacking in the literature. Detailed analysis of one case study provided an illustration of how to apply the Impact Flow Diagram, as well as how the scope of analysis may be broadened to include organizational and regulatory factors. Conclusion: Research methods to uncover use problems with technology may be used in many ways, with many different foci. We advocate the adoption of an Impact Flow Diagram perspective rather than merely focusing on usability issues in isolation. Truly advancing patient safety requires the systematic adoption of a systems perspective viewing people and technology as an ensemble, also in the design of medical device technology.
In Nederland gebruiken 65 plussers drie keer zoveel medicijnen als de gemiddelde Nederlander. Voor 75 plussers geldt dat zij vijf keer zoveel medicijnen gebruiken. In combinatie met leeftijdsgerelateerde natuurlijke veranderingen in het metabolisme, verminderde cognitie, multi-morbiditeit, verminderde nierfunctie, polyfarmacie en verminderde capaciteit tot herstel, zijn ouderen kwetsbaar voor medicatiegerelateerde problemen. Thuiszorg cliënten zijn doorgaans ouder dan 65 jaar, waardoor er vaker sprake is van polyfarmacie en verminderde cognitie. Daarom bevinden zich vooral in deze populatie cliënten, die kwetsbaar zijn voor medicatiegerelateerde problemen. Verschillende studies hebben aangetoond dat huisartsen en apothekers een bijdrage kunnen leveren aan het herkennen van medicatiegerelateerde problemen bij hun patiënten. Er is echter weinig aandacht besteed aan het vroegsignaleren van observaties die kunnen duiden op een medicatie gerelateerd probleem door thuiszorgmedewerkers. In aanvulling op de huisarts en apotheker zouden thuiszorgmedewerkers, die hun patiënten op regelmatige basis thuis bezoeken, een bijdrage kunnen leveren aan het vroegsignaleren van potentiële medicatiegerelateerde problemen. Het doel van dit proefschrift is het: 1. verkennen van de opvattingen van ouderen ten aanzien van hun medicatie en hun medicatie management capaciteit gerelateerd aan zelfmanagement vaardigheden en cognitie; 2. beschrijven van de kennis, houding en medicatie management praktijk van thuiszorgmedewerkers; 3. vaststellen of een gestandaardiseerde observatielijst leidt tot vroegsignalering van potentiële medicatiegerelateerde problemen in de thuiszorg
BACKGROUND: The use of drug round tabards is a widespread intervention that is implemented to reduce the number of interruptions and medication administration errors (MAEs) by nurses; however, evidence for their effectiveness is scarce.PURPOSE: Evaluation of the effect of drug round tabards on the frequency and type of interruptions, MAEs, the linearity between interruptions and MAEs, as well as to explore nurses' experiences with the tabards.STUDY DESIGN: A mixed methods before-after study, with three observation periods on three wards of a Dutch university hospital, combined with personal inquiry and a focus group with nurses.METHODS: In one pre-implementation period and two post-implementation periods at 2 weeks and 4 months, interruptions and MAEs were observed during drug rounds. Descriptive statistics and univariable linear regression were used to determine the effects of the tabard, combined with personal inquiry and a focus group to find out experiences with the tabard.FINDINGS: A total of 313 medication administrations were observed. Significant reductions in both interruptions and MAEs were found after implementation of the tabards. In the third period, a decrease of 75% in interruptions and 66% in MAEs was found. Linear regression analysis revealed a model R2 of 10.4%. The implementation topics that emerged can be classified into three themes: personal considerations, patient perceptions, and considerations regarding tabard effectiveness.CONCLUSIONS: Our study indicates that this intervention contributes to a reduction in interruptions and MAEs. However, the reduction in MAEs cannot be fully explained by the decrease in interruptions alone; other factors may have also influenced the effect on MAEs. We advocate for further research on complementary interventions that contribute to a further reduction of MAEs.CLINICAL RELEVANCE: We can conclude that drug round tabards are effective to improve medication safety and are therefore important for the quality of nursing care and the reduction of MAEs.
