Medication regimen complexity of coronary artery disease patients / Complexidade da farmacoterapia de pacientes com doença arterial coronariana

ABSTRACT Objective: To determine the factors associated with the high complexity of medication regimen in patients with coronary artery disease. Methods: A cross-sectional study was carried out in a multiprofessional cardiology outpatient clinic, in the Secondary Care of the Unified Health System, where sociodemographic (age, sex, and education), clinical (number of health conditions, cardiovascular diagnoses, and comorbidities) and pharmacotherapeutic (adherence, polypharmacy, and cardiovascular polypharmacy) characteristics were collected. These were related to complexity of medication regimen, measured through the medication regimen complexity index. The classification of high complexity of medication regimen was carried out using standardization for the older adults and stratification for adult patients, as suggested in the literature. Results: The total complexity medication regimen of 148 patients had a median of 17.0 (interquartile range of 10.5). In the univariate analysis, the factors associated with high complexity were heart failure, diabetes mellitus, hypertension, five or more diseases, and non-adherence to treatment. In the final model, after logistic regression, there was a statistically significant association (p<0.05) with the variables diabetes mellitus, hypertension, and non-adherence. Conclusion: The high complexity of medication regimen in patients with coronary artery disease was associated with the presence of diabetes mellitus, hypertension, and reports of non-adherence to treatment.

RESUMO Objetivo: Determinar os fatores associados à complexidade alta da farmacoterapia em pacientes com doença arterial coronariana. Métodos: Realizou-se um estudo transversal em um ambulatório multiprofissional de cardiologia na Atenção Secundária do Sistema Único de Saúde, de onde foram coletadas características sociodemográficas (idade, sexo e escolaridade), clínicas (número de condições de saúde, diagnósticos cardiovasculares e comorbidades) e farmacoterápicas (adesão, polifarmácia e polifarmácia cardiovascular). Essas características foram relacionadas com a complexidade da farmacoterapia, mensurada por meio do Índice de Complexidade da Farmacoterapia. A classificação em complexidade alta da farmacoterapia foi realizada empregando a normatização para idosos e a estratificação para pacientes adultos, sugeridas na literatura. Resultados: A complexidade da farmacoterapia total dos 148 pacientes apresentou mediana igual a 17,0 (amplitude interquartílica de 10,5). Na análise univariada, os fatores associados à complexidade alta foram insuficiência cardíaca, diabetes mellitus, hipertensão arterial, cinco ou mais doenças e não adesão. No modelo final, após regressão logística, houve associação estatisticamente significante (p<0,05) com as variáveis diabetes mellitus, hipertensão arterial e não adesão. Conclusão: A complexidade alta da farmacoterapia em pacientes com doença arterial coronariana foi associada à presença de diabetes mellitus, hipertensão arterial e relato de não adesão a medicamentos

Emergency department visits of older adults within 30 days of discharge: analysis from the pharmacotherapy perspective / Visitas de idosos a departamentos de emergência em até 30 dias após a alta hospitalar: análise na perspectiva da farmacoterapia

ABSTRACT Objective To analyze, from the pharmacotherapy perspective, the factors associated to visits of older adults to the emergency department within 30 days after discharge. Methods A cross-sectional study carried out in a general public hospital with older adults. Emergency department visit was defined as the stay of the older adult in this service for up to 24 hours. The complexity of drug therapy was determined using the Medication Regimen Complexity Index. Potentially inappropriate drugs for use in older adults were classified according to the American Geriatric Society/Beers criteria of 2015. The outcome investigated was the frequency of visits to the emergency department within 30 days of discharge. Multivariate logistic regression was performed to identify the factors associated with the emergency department visit. Results A total of 255 elderly in the study, and 67 (26.3%) visited emergency department within 30 days of discharge. Polypharmacy and potentially inappropriate medications for older adults did not present a statistically significant association. The diagnosis of heart failure and Medication Regimen Complexity Index >16.5 were positively associated with emergency department visits (OR=2.3; 95%CI: 1.04-4.94; p=0.048; and OR=2.1; 95%CI: 1.11-4.02; p=0.011), respectively. Furthermore, the diagnosis of diabetes mellitus and chronic kidney disease were protection factors for the outcome (OR=0.4; 95%CI: 0.20-0.73; p=0.004; and OR=0.3; 95%CI: 0.13-0.86; p=0.023). Conclusion The diagnosis of heart failure and Medication Regimen Complexity Index >16.5 were positively associated with the occurrence of an emergency department visit within 30 days of discharge.

RESUMO Objetivo Analisar, da perspectiva da farmacoterapia, os fatores associados à visita de idosos a departamentos de emergência em até 30 dias após a alta da internação índice. Métodos Foi realizado estudo transversal em hospital público geral, com idosos. Visita a departamento de emergência foi definido como a permanência do idoso nesse serviço por até 24 horas. A complexidade da farmacoterapia foi determinada usando o Medication Regimen Complexity Index. Os medicamentos potencialmente inapropriados para idosos foram classificados segundo os critérios American Geriatric Society/Beers , de 2015. O desfecho investigado foi a frequência de visita a departamento de emergência em 30 dias após a alta hospitalar. Regressão logística multivariada foi realizada para identificar os fatores associados à visita a departamento de emergência. Resultados No estudo, foram incluídos 255 idosos; 67 (26,3%) visitaram departamento emergência em 30 dias após a alta hospitalar. Polifarmácia e medicamentos potencialmente inapropriados para idosos não apresentaram associação estatística significante. O diagnóstico de insuficiência cardíaca e o índice da complexidade da farmacoterapia >16,5 apresentaram associação positiva com visita a departamento de emergência (RC=2,3; IC95%: 1,04-4,94; p=0,048; e RC=2,1; IC95%: 1,11-4,02; p=0,011), respectivamente. Ainda, o diagnóstico de diabetes mellitus e a doença renal crônica foram fatores de proteção para o desfecho (RC=0,4; IC95%: 0,20-0,73; p=0,004; e RC=0,3; IC95%: 0,13-0,86; p=0,023). Conclusão O diagnóstico de insuficiência cardíaca e o índice da complexidade da farmacoterapia >16,5 apresentaram associação positiva com ocorrência de visita a departamento de emergência dentro de 30 dias após a alta.

Potential drug interactions in drug therapy prescribed for older adults at hospital discharge: cross-sectional study

ABSTRACT BACKGROUND: Older adults with a range of comorbidities are often prescribed multiple medications, which favors drug interactions. OBJECTIVES: To establish the frequency of potential drug interactions in prescriptions at hospital discharge among older adults and to identify the associated factors. DESIGN AND SETTING: Cross-sectional study conducted in a public hospital. METHODS: An initial face-to-face interview, data collection from the electronic medical records (covering sociodemographic, clinical, functional and drug therapy-related variables) and telephone follow-up after discharge were conducted to confirm the medication prescribed at discharge. Drug interactions were identified through the Micromedex DrugReax software, along with interactions that should be avoided among the elderly, as per the 2015 American Geriatric Society/Beers criteria. Multivariable logistic regression was performed. RESULTS: Potential for drug interactions was identified in the discharge drug therapy of 67.8% of the 255 older adults evaluated (n = 172), and 54.5% (n = 145) of the drug interactions were major. Among the drug interactions that should be avoided among older adults, those that increase the risk of falls were the most frequent. The drug interactions thus identified were independently associated with polypharmacy (odds ratio, OR = 12.62; 95% confidence interval, CI 6.25-25.50; P = 0.00), diabetes mellitus (OR = 2.16; 95% CI 1.05-4.44; P = 0.04), hypothyroidism (OR = 7.29; 95% CI 2.03-26.10; P = 0.00), chronic kidney disease (OR = 3.41; 95% CI 1.09-10.64; P = 0.03) and hospitalization in geriatric units (OR = 0.45; 95% CI 0.22-0.89; P = 0.02). CONCLUSION: The frequency of potential drug interactions in drug therapy prescribed at discharge for these older adults was high. Polypharmacy, diabetes mellitus, hypothyroidism and chronic kidney disease were positively associated with occurrences of drug interactions, while hospitalization in geriatric units showed an inverse association.