Abstract
Purpose
Adverse drug events (ADEs) lead to adverse clinical outcomes such as hospitalization. There is little information about the characteristics of ADEs in patients with advanced chronic conditions and have a prognosis of limited life expectancy. This study aimed to evaluate (i) the prevalence of ADEs at the time of admission to hospital, (ii) the causality, severity, and preventability of the ADEs, and (iii) the clinical and pharmacological characteristics associated with the ADEs.
Methods
This is a prospective cross-sectional study (county of Osona, Catalonia, Spain). We included patients who required palliative care as identified by the NECPAL CCOMS-ICO tool who were hospitalized in an acute geriatric unit (AGU). A system of alerts (trigger tool) was used together with a multidisciplinary review for the detection of the ADEs.
Results
Over the course of 10 months, 235 patients were recruited. Seventy-six ADEs affecting 24.68 % of the sample were identified, and of these, 23 (30.26 % of the ADEs; 8.51 % of the sample) were directly related to hospitalization. The multivariate logistic regression analysis identified the following risk factors: presence of extreme polypharmacy (≥10 medications) (OR = 3.02; 95 % CI = 1.48–6.19), anticholinergic burden according to the Anticholinergic Drug Scale (ADS) (OR = 2.32; 95 % CI = 1.13–4.78), and treatment complexity according to the Medication Regimen Complexity Index (MRCI) scale (OR = 2.90; 95 % CI = 1.44–5.83). The vast majority (94.45 %) of the ADEs were considered to be preventable. There were no differences in the survival of the patients.
Conclusions
ADEs are common, largely preventable, and implicated in the hospitalization of patients who require palliative care.
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Acknowledgments
We thank all the nurses, patients, and caregivers who have participated and collaborated in the study.
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Funding
This study was partially supported by a PhD Research Fellowship granted by “Consultori Bayes.” The funders had no role in the design, execution, analysis, interpretation, or writing of the study.
Conflict of interests
Sevilla-Sánchez D, Molist-Brunet N, Amblàs-Novellas J, Roura-Poch P, Espaulella-Panicot J, and Codina-Jane C declare that they have no conflict of interest with respect to the research, authorship, and/or publication of this article.
Ethical approval
This study was approved by the local ethics committee (ID number PR82-2014852). All procedures performed in this study met the ethical standards of the committee and the 1964 Declaration of Helsinki and its later amendments. Informed consent was obtained from all of the participants included in the study.
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Sevilla-Sanchez, D., Molist-Brunet, N., Amblàs-Novellas, J. et al. Adverse drug events in patients with advanced chronic conditions who have a prognosis of limited life expectancy at hospital admission. Eur J Clin Pharmacol 73, 79–89 (2017). https://doi.org/10.1007/s00228-016-2136-8
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DOI: https://doi.org/10.1007/s00228-016-2136-8