ABSTRACT
BACKGROUND: The Beers criteria were developed to help in identifying potentially inappropriate medications (PIMs) for elderly patients. These medications are often associated with adverse events and limited effectiveness in older adults. Patients awaiting an alternate level of care (ALC patients) are those who no longer require acute care hospital services and are waiting for placement elsewhere. They are often elderly, have complex medication regimens, and are at high risk of adverse events. At the time of this study no studies had applied the Beers criteria to ALC patients in Canadian hospitals. OBJECTIVES: To determine the proportion of ALC patients receiving PIMs and the proportion experiencing selected PIM-related adverse events. METHODS: A retrospective chart review of ALC patients 65 years of age or older was performed to identify PIMs and the occurrence of selected adverse events (specifically central nervous system [CNS] events, falls, bradycardia, hypoglycemia, seizures, insomnia, gastrointestinal bleeding, and urinary tract infections). A logistic regression model with a random intercept for each patient was constructed to estimate odds ratios and probabilities of adverse events. RESULTS: Fifty-two ALC patients were included in the study. Of these, 48 (92%) were taking a PIM. Of the 922 adverse events evaluated, 407 (44.1%) were associated with a regularly scheduled PIM. Among patients who were taking regularly scheduled PIMs, there was a significantly increased probability of an adverse CNS event and of a fall (p < 0.001 for both). The most common PIM medication classes were first-generation antihistamines (24 [46%] of the 52 patients), antipsychotics (21 patients [40%]), short-acting benzodiazepines (15 patients [29%]), and nonbenzodiazepine hypnotics (14 patients [27%]). CONCLUSIONS: A high proportion of ALC patients were taking PIMs and experienced an adverse event that may have been related to these drugs. These findings suggest that the ALC population might benefit from regular medication review and monitoring to prevent or detect adverse events.
CONTEXTE: Les critères de Beers ont été élaborés afin d'aider à détecter l'utilisation de médicaments potentiellement inappropriés (MPI) auprès des patients âgés. L'on associe souvent les MPI à des événements indésirables, et leur efficacité chez les personnes âgées est limitée. Les patients en attente d'un autre niveau de soins (patients ANS) sont ceux qui ne nécessitent plus de soins de courte durée de l'hôpital et qui attendent d'être déplacés vers un autre établissement. Il s'agit souvent de personnes âgées ayant une panoplie complexe de traitements médicamenteux et présentant un risque élevé de subir des événements indésirables. Au moment de la présente recherche, aucune étude n'avait appliqué les critères de Beers aux patients ANS des hôpitaux canadiens. OBJECTIFS: Déterminer quelles sont les proportions de patients ANS qui reçoivent des MPI et qui subissent certains événements indésirables choisis liés à ces médicaments. MÉTHODES: Une analyse rétrospective des dossiers médicaux de patients ANS âgés de 65 ans et plus a été réalisée dans le but de relever les MPI ainsi que les cas de certains événements indésirables choisis (particulièrement les événements liés au système nerveux central, les chutes, la bradycardie, l'hypoglycémie, les convulsions, l'insomnie, les hémorragies gastro-intestinales et les infections urinaires). On a mis au point un modèle de régression logistique avec ordonnée à l'origine aléatoire pour chaque patient afin d'estimer les risques relatifs approchés ainsi que les probabilités d'événements indésirables. RÉSULTATS: Au total, 52 patients ANS ont été admis à l'étude. De ceuxci, 48 (92 %) prenaient un MPI. Des 922 événements indésirables analysés, 407 (44,1 %) ont été associés à un MPI administré régulièrement. Parmi les patients prenant des MPI à une fréquence régulière, la probabilité de subir une chute ou un événement indésirable lié au système nerveux central était grandement accrue (p < 0,001 pour chacun). Les MPI les plus fréquents étaient : les antihistaminiques de première génération (24 [46 %] des 52 patients), les antipsychotiques (21 patients [40 %]), les benzodiazépines à action brève (15 patients [29 %]) et les hypnotiques non-benzodiazépines (14 patients [27 %]). CONCLUSIONS: Un grand nombre de patients ANS prenaient des MPI et avaient subi un événement indésirable qui pouvait avoir été en lien avec ces médicaments. Ces résultats laissent croire que les patients ANS pourraient tirer avantage d'évaluations fréquentes de la pharmacothérapie et de surveillance afin de prévenir les événements indésirables ou de les détecter.
ABSTRACT
BACKGROUND: Most community-dwelling older adults are engaged in medication self-management activities. Deviation in these activities can lead to adverse outcomes for patients and an increased burden on the health care system. Successful medication self-management involves a complex interaction among cognitive, functional, and psychosocial variables. Several assessment instruments have been developed, but there remains a need for an effective and comprehensive tool. OBJECTIVE: To evaluate the psychometric properties (inter-rater reliability, test-retest reliability, and validity), as well as the usability, of the Self-Medication Assessment Tool (SMAT), an instrument designed to measure elderly patients' ability to manage their medications. METHODS: The study enrolled patients 65 years of age or older who were living independently and were admitted to family medicine beds in a community hospital in eastern Canada. Three subsamples of the population were identified. The inter-rater reliability group was videotaped and scored independently by 2 pharmacists. The test-retest reliability group was tested with the SMAT and was retested with the same tool a week later. The usability group was interviewed after using the SMAT to determine their satisfaction. Standard neuropsychological measures (Cognitive Competency Test, clock-drawing test, and Mini Mental State Examination [MMSE]) were used to determine convergent and divergent validity. Pill counts, refill rates, and use of adherence aids or reminders before study enrolment were used as measures of concurrent validity. RESULTS: A total of 121 patients (mean age 81.5 years) were enrolled. The scales of the SMAT were determined to have good internal consistency and high inter-rater and test-retest reliability. Convergent validity was evidenced by the high positive correlation between the functional scale of the SMAT and the results of the clock-drawing and Cognitive Competency tests (p < 0.01) and between the cognitive and recall scales of the SMAT and the results of the clock-drawing test (p < 0.05), the MMSE (p < 0.01), and the Cognitive Competency Test (p < 0.01). Patients reported being highly satisfied with their experience. CONCLUSION: The SMAT is a practical, reliable, comprehensive instrument with demonstrated convergent validity, strong patient acceptability, and various internally consistent scales that assess multiple dimensions of elderly patients' ability to self-manage their medications. Further testing is required to show that the SMAT correlates with medication adherence.
ABSTRACT
BACKGROUND: Pharmacist-led research has grown substantially over the past 10 to 15 years. The Research Grant Program of the Research and Education Foundation of the Canadian Society of Hospital Pharmacists (CSHP Foundation), initiated in 1992, is the only funding opportunity available specifically to members of the Society. OBJECTIVE: To evaluate the status of research projects funded by the Research Grant Program of the CSHP Foundation, to examine the outcomes of these projects, and to determine the opinions of grant recipients regarding this competition. METHODS: An e-mail survey was sent to each of the 34 hospital pharmacist researchers who received funding from the Research Grant Program of the CSHP Foundation during the period 1995 to 2008. Survey questions sought to evaluate scholarly outcomes (i.e., publications and presentations) from funded projects. The opinions of grant recipients about the value of the program were also solicited. RESULTS: One of the potential respondents had returned the grant money and was ineligible for the survey. Of the 33 potential respondents, 30 (91%) responded to the survey. Overall, 24 of the projects had been completed at the time of the survey, and 19 of these had been published, resulting in a total of 26 manuscripts. Abstracts had been presented for 21 of the projects. In total, 49 abstracts had been presented at national (22), international (13), provincial (7) and local (7) conferences. The median award was $5000 (interquartile range $5000 to $7500). Eleven of the projects had received additional funding, primarily from the recipient's hospital or health authority or from university sources. The survey respondents indicated that the grant from the CSHP Foundation had been critical to completion of their projects and had been of assistance in securing additional funding, when such funding was necessary. Respondents felt that dedicated research funding for hospital pharmacists in Canada should continue. CONCLUSIONS: The Research Grant Program of the CSHP Foundation has been important to hospital pharmacists, enabling a variety of research projects to be initiated and completed. The high rate of project completion and the large number of publications and presentations resulting from this work speak to both the quality of the work and the dedication of the research teams. The CSHP Foundation should continue to fund this competition and should explore a more robust model, with larger awards and more funded projects each year.
ABSTRACT
BACKGROUND: A majority of community-dwelling older adults manage their own medication regimens. This study describes the development and first phase of testing of the Self-Medication Assessment Tool (SMAT), designed to screen for cognitive and functional deficits in relation to medication self-management among community-dwelling geriatric patients. OBJECTIVE: To evaluate the face validity of the SMAT and to determine its acceptability among pharmacists. METHODS: An instrument was designed, with 5 assessment scales to measure function, cognition, medication recall, and 2 aspects of adherence. The instrument included a standardized test kit and instructions for testers. Focus groups interviews, individual interviews, and surveys were used to determine the reactions of community and hospital-based pharmacists to the tool. Transcripts of the focus group and individual interviews were coded for main themes. Pharmacists' ratings of usefulness, thoroughness, and ease of use, as well as their willingness to use the instrument, were compared with a neutral rating on a 7-point scale by means of 1-sample t tests. RESULTS: Focus group interviews or individual interviews were conducted with 17 pharmacists and 3 pharmacy students (out of a potential population of about 300) who responded to an invitation to participate. The pharmacists felt that the tool would be useful in identifying difficulties with medication management and potential interventions, and they expressed a willingness to use it in their respective practices. Pharmacists working in hospital settings were slightly more willing than community pharmacists to use the tool. Interviewees highlighted ways to improve the tool before testing of its psychometric properties in the planned second phase of this project. CONCLUSIONS: The SMAT had strong face validity and was particularly acceptable for use by pharmacists in hospital settings.
