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Effects of pharmacists’ interventions on appropriateness of prescribing for elderly and exploration of a possible correlation between scores for appropriateness and clinical outcomes: analyses from a randomized controlled trial
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Farmaceutiska fakulteten, Institutionen för farmaceutisk biovetenskap.
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper. (the Hospital Pharmacy, Uppsala University Hospital, Uppsala, Sweden)
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Klinisk farmakogenomik och osteoporos.
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper.
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(Engelska)Manuskript (preprint) (Övrigt vetenskapligt)
Abstract [en]

Background:

Inappropriate prescribing can cause substantial morbidity and represents a clinical and economic burden for patients and society. Appropriateness of prescribing can be assessed by various measures and screening tools, however, for a tool to be valid there should be casual links to important clinical health outcomes. The aim of this study was to investigate the effect of a pharmacist intervention on appropriateness of prescribing, and to explore the relationship between these results and clinical health outcomes defined as re-visits to hospital.

Methods:

The study population from a previous randomized controlled study, in which the effects of a comprehensive pharmacist intervention on re-hospitalisation was investigated, was used. The criteria from the validated instruments STOPP, START and MAI were applied retrospectively to the study patients (368 patients; intervention group n=182, control group n=186). The quality assessments were done on admission and at discharge to detect differences over time between the control- and the intervention group. Hospital care consumption one year after admission was recorded and the correlation between scores for appropriateness, as well as number of drugs at discharge, and hospital visits was analysed.

Results:

The number of Potentially Inappropriate Medicines (PIMs) per patient as identified by STOPP was reduced for the intervention group but not for the control group (1.42 and 0.93 vs. 1.46 and 1.66 respectively, p<0.01) The number of Potential Prescription Omissions (PPOs) per patient as identified by START was reduced for the intervention group but not for the control group (0.36 and 0.09 vs. 0.42 and 0.45 respectively, p<0.001). The summated score for MAI was reduced for the intervention group but not for the control group (8.5 to 5.0 and 8.7 to 10.0 respectively, p< 0.001). There was no correlation between the scores of the tools and total visits to hospital. Number of drugs (unadjusted) correlated with visits to hospital and the rate ratio was 4%. For readmissions to hospital, MAI (unadjusted) and the number of drugs showed a positive correlation. There was a correlation between MAI and STOPP and drug-related readmissions (RR 8-9% and 30-34% respectively).

Conclusion:

The addition of a comprehensive pharmacist service to standard care significantly improved the appropriateness of prescribing for patients in the intervention group that participated in the randomized controlled trial, as evaluated by all three instruments used; STOPP, START and MAI. However, the results on correlation between the tools and re-visits to hospital were inconclusive.

Nyckelord [en]
appropriateness, quality of prescribing, hospitalisation, pharmacist intervention
Nationell ämneskategori
Samhällsfarmaci och klinisk farmaci
Identifikatorer
URN: urn:nbn:se:uu:diva-167138OAI: oai:DiVA.org:uu-167138DiVA, id: diva2:481726
Tillgänglig från: 2012-01-22 Skapad: 2012-01-22 Senast uppdaterad: 2018-01-12Bibliografiskt granskad
Ingår i avhandling
1. Effects of Clinical Pharmacists' Interventions: on Drug-Related Hospitalisation and Appropriateness of Prescribing in Elderly Patients
Öppna denna publikation i ny flik eller fönster >>Effects of Clinical Pharmacists' Interventions: on Drug-Related Hospitalisation and Appropriateness of Prescribing in Elderly Patients
2012 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

The overall aim of this thesis was to evaluate clinical pharmacist interventions with the focus on methods aiming to improve the quality of drug therapy and increase patient safety. Adverse drug events caused by medication errors, suboptimal dosages and inappropriate prescribing are common causes of drug-related morbidity and mortality. Clinical pharmacists integrated in multi-professional health-care teams are increasingly addressing these issues. A randomised controlled trial (RCT) was conducted to investigate the effectiveness of clinical pharmacists’ interventions in reducing morbidity and use of hospital care for patients 80 years or older. The results showed that the intervention group had fewer visits to hospital and that the intervention was cost-effective. In a subsequent study based on the population in the RCT, the appropriateness of prescribing was assessed using three validated tools. The results indicated improved appropriateness of prescribing for the intervention group as a result of the intervention. The tools and the number of drugs at discharge were then tested for validity in terms of causal links between the scores at discharge and hospitalisation. No clear correlations between high scores for the tools or a high number of drugs and increased risk of hospitalisation could be detected. During the inclusion period of the RCT a survey based study was conducted where the perceived value of ward-based clinical pharmacists, from the perspective of hospital-based physicians and nurses as well as from general practitioners (GPs) was evaluated. The respondents were positive to the new collaboration to a high degree and stated increased patient safety and improvements in patients’ drug therapy as the main advantages. In the last study the frequency and severity of prescription and transcription errors, when patients enrolled in the multidose-dispensed medications (MDD) system are discharged from hospital, was investigated. The results showed that errors frequently occur when MDD patients are hospitalised.

 

 

Ort, förlag, år, upplaga, sidor
Uppsala: Acta Universitatis Upsaliensis, 2012. s. 58
Serie
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Pharmacy, ISSN 1651-6192 ; 154
Nyckelord
Drug-related problems, medication review, appropriateness of prescribing, quality of prescribing, hospitalisation, pharmacist, clinical pharmacy, inter-professional relationships, collaboration, medication error, medication reconciliation, multidose-dispensed medications, prescription errors, transition of care
Nationell ämneskategori
Samhällsfarmaci och klinisk farmaci
Forskningsämne
Farmaceutisk vetenskap
Identifikatorer
urn:nbn:se:uu:diva-167343 (URN)978-91-554-8262-6 (ISBN)
Disputation
2012-03-09, B:8, BMC, Husargatan 3, Uppsala, 09:00 (Engelska)
Opponent
Handledare
Tillgänglig från: 2012-02-17 Skapad: 2012-01-25 Senast uppdaterad: 2018-01-12Bibliografiskt granskad

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Gillespie, UlrikaMelhus, HåkanHenrohn, DanBertilsson, MariaHammarlund-Udenaes, Margareta

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Gillespie, UlrikaMelhus, HåkanHenrohn, DanBertilsson, MariaHammarlund-Udenaes, Margareta
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Institutionen för farmaceutisk biovetenskapInstitutionen för medicinska vetenskaperKlinisk farmakogenomik och osteoporosUppsala kliniska forskningscentrum (UCR)
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