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INTRODUCTION: Older patients are more susceptible to medication use, and physiological changes resulting from aging and organic dysfunctions presented by critically ill patients may alter the pharmacokinetic or pharmacodynamic behavior. Thus, critically ill older people present greater vulnerability to the occurrence of pharmacotherapeutic problems. OBJECTIVE: To evaluate pharmacotherapy and the development of potential adverse drug reactions (ADRs) in older patients admitted to an intensive care unit (ICU). METHOD: A cohort study was conducted in an ICU for adults of a Brazilian University Hospital during a 12-month period. The patients' pharmacotherapy was evaluated daily, considering the occurrence of ADRs and drug-drug interactions (DDIs), the use of potentially inappropriate medications (PIMs) for older people, and the pharmacotherapy anticholinergic burden (ACB). A trigger tool was used for active search of ADRs, with subsequent causality evaluation. PIM use was evaluated by means of the Beers criteria and the STOPP/START criteria. The ABC scale was employed to estimate ACB. The Micromedex® and Drugs.com® medication databases were employed to evaluate the DDIs. RESULTS: The sample of this study consisted of 41 patients, with a mean age of 66.8 years old (±5.2). The 22 triggers used assisted in identifying 15 potential ADRs, and 26.8% of the patients developed them. The mean estimated ACB score was 3.0 (±1.8), and the patients used 3.1 (±1.4) and 3.3 (±1.6) PIMs according to the Beers and the STOPP criteria, respectively. A total of 672 DDIs were identified, with a mean of 16.8 (±9.5) DDIs/patient during ICU hospitalization. Our findings show an association between occurrence of ADRs in the ICU and polypharmacy (p=.03) and DDIs (p=.007), corroborating efforts for rational medication use as a preventive strategy. CONCLUSIONS: Using tools to evaluate the pharmacotherapy for older people in intensive care can assist in the recognition and prevention of pharmacotherapeutic problems, with emphasis on the identification of ADRs through the observation of triggers and subsequent causality analysis.

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Abstract: This study is a systematic literature review of the association between lists of potentially inappropriate medications (PIM) in clinical practice and health outcomes of older adults followed up in primary health care. For this purpose, the PRISMA protocol was used to systematize the search for articles in the PubMed, Web of Science, Scopus, Cochrane Central, LIVIVO and LILACS databases, in addition to the gray literature. Studies with randomized clinical trials were selected, using explicit criteria (lists) for the identification and management of PIM in prescriptions of older patients in primary care. Of the 2,400 articles found, six were used for data extraction. The interventions resulted in significant reductions in the number of PIM and adverse drug events and, consequently, in potentially inappropriate prescriptions (PIP) in polymedicated older adults. However, there were no significant effects of the interventions on negative clinical outcomes, such as emergency room visits, hospitalizations and death, or on improving the health status of the older adults. The use of PIM lists promotes adequate medication prescriptions for older adults in primary health care, but further studies are needed to determine the impact of reducing PIM on primary clinical outcomes.

Resumo: Este estudo revisou sistematicamente a literatura sobre a associação de listas de medicamentos potencialmente inapropriados (MPI) na prática clínica e desfechos de saúde na população idosa acompanhada na atenção primária à saúde. Para tanto, o protocolo PRISMA foi usado para sistematizar a busca de artigos nas bases de dados PubMed, Web of Science, Scopus, Cochrane Central, LIVIVO e LILACS, além da literatura cinzenta. Foram selecionados estudos com ensaios clínicos randomizados, incluindo a utilização de critérios explícitos (listas) para identificar e manejar MPI em prescrições para idosos atendidos na atenção primária. Dos 2.400 artigos encontrados, seis foram utilizados para extração de dados. As intervenções reduziram significativamente o número de MPI e eventos adversos a medicamentos e, consequentemente, nas prescrições potencialmente inadequadas em idosos polimedicados. No entanto, não houve efeitos significativos das intervenções sobre desfechos clínicos negativos (como visitas a serviços de emergência, hospitalizações e óbito) ou melhora das condições de saúde dos idosos. O uso de listas de MPI pode promover a adequação da prescrição de medicamentos para idosos na atenção primária à saúde, mas mais estudos são necessários para determinar os impactos da redução de MPI em desfechos clínicos primários.

Resumen: Este estudio realizó una revisión sistemática en la literatura sobre la asociación de listas de medicamentos potencialmente inapropiados (MPI) en la práctica clínica y los resultados de salud en la población de edad avanzada monitoreada en atención primaria de salud. Para ello, se utilizó el protocolo PRISMA para sistematizar la búsqueda de artículos en las bases de datos PubMed, Web of Science, Scopus, Cochrane Central, LIVIVO y LILACS, además de la literatura gris. Se seleccionaron estudios con ensayos clínicos aleatorizados, incluyendo el uso de criterios explícitos (listas) para identificar y manejar MPI en prescripciones para adultos mayores atendidos en atención primaria. De los 2.400 artículos encontrados, seis se utilizaron para la recolección de datos. Las intervenciones tuvieron una significativa disminución en la cantidad de MPI y eventos adversos de medicamentos y, en consecuencia, en prescripciones potencialmente inapropiadas en adultos mayores polimedicados. Sin embargo, no hubo efectos significativos de las intervenciones en los resultados clínicos negativos (como consultas a servicios de urgencias, hospitalizaciones o muerte) o mejora en las condiciones de salud de los adultos mayores. El uso de listas de MPI puede promover una adecuada prescripción de medicamentos a los adultos mayores en la atención primaria de salud, si bien se necesitan más estudios para determinar los impactos de la reducción de MPI en los resultados clínicos primarios.

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ABSTRACT Objective: to identify the prevalence and associations of polypharmacy and potentially inappropriate medication use among older adults with hypertension treated in primary care. Methods: a cross-sectional study carried out with older adults with hypertension treated at a Family Health Strategy unit. Data collection included analysis of medical records, interviews and multidimensional assessment of older adults. Socio-demographic information and clinical variables were collected. Statistical analysis was performed by multiple logistic regression. Results: polypharmacy prevalence was 38.09%, and potentially inappropriate medication (PIM), 28.57%. There was a significant association between polypharmacy and PIM use, altered sleep and ethnicity. PIM use was associated with polypharmacy, worse family functioning, and absence of a caregiver. Cognitive decline reduces the prevalence of these medications. Conclusions: polypharmacy and PIM use among older adults with hypertension represent a problem in this population, especially among the most vulnerable.

RESUMEN Objetivo: identificar la prevalencia y asociaciones de polifarmacia y uso de medicamentos potencialmente inapropiados entre ancianos hipertensos atendidos en atención primaria. Métodos: estudio transversal, realizado con ancianos hipertensos atendidos en una unidad de la Estrategia Salud de la Familia. La recolección de datos incluyó análisis de historias clínicas, entrevistas y evaluación multidimensional de los ancianos. Se recogió información sociodemográfica y variables clínicas. El análisis estadístico se realizó mediante regresión logística múltiple. Resultados: la prevalencia de polifarmacia fue de 38,09% y de medicación potencialmente inapropiada (MPI), de 28,57%. Hubo una asociación significativa entre la polifarmacia y el uso de MPI, la alteración del sueño y el origen étnico. El uso de MPI se asoció con polifarmacia, peor funcionamiento familiar y ausencia de un cuidador. El deterioro cognitivo reduce la prevalencia de estos medicamentos. Conclusiones: la polifarmacia y el uso de MPI entre personas mayores con hipertensión representan un problema en esta población, especialmente entre los más vulnerables.

RESUMO Objetivo: identificar a prevalência e as associações da polifarmácia e uso de medicamentos potencialmente inapropriados entre idosos com hipertensão atendidos na atenção básica. Métodos: estudo transversal, realizado com idosos com hipertensão atendidos em unidade da Estratégia Saúde da Família. A coleta de dados englobou análise de prontuário, entrevista e avaliação multidimensional dos idosos. Foram coletadas informações socioedemográficas e variáveis clínicas. A análise estatística se deu por regressão logística múltipla. Resultados: a prevalência de polifarmácia foi de 38,09%, e de medicamentos potencialmente inapropriados (MPI), de 28,57%. Houve associação significativa entre polifarmácia e uso de MPI, sono alterado e etnia. O uso de MPI foi associado à polifarmácia, pior funcionalidade familiar e ausência de cuidador. O declínio cognitivo reduz a prevalência destes medicamentos. Conclusões: a polifarmácia e o uso de MPI entre idosos com hipertensão representam um problema nessa população, especialmente entre aqueles mais vulneráveis.

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Abstract | Introduction: Potentially inappropriate medication is associated with adverse health and functional outcomes, as well as increased health care costs. Objective: To estimate the prevalence and types of potentially inappropriate medication according to the Beers criteria in community-dwelling older persons and to identify the major clinical and functional consequences of potentially inappropriate medication during two years of following. Materials and methods: We conducted a longitudinal, descriptive, and observational study that included 400 65-year or older community-dwelling people (48% women) selected by simple random sampling in 2012. In 2014, 372 people were re-evaluated and classified into two groups based on the presence or absence of potentially inappropriate medication through the follow-up period. Results: In total, 31% had polypharmacy (5-9 medications) and 1,8% had excessive polypharmacy (10 or more medications). The mean of the number of medications was higher in the potentially inappropriate medication group (3 vs. 5.78; p<0.001) and 21.9% still had the potentially inappropriate medication status during the follow-up; of them, 75% had one potentially inappropriate medication and 23% two. The presence of potentially inappropriate medication was more frequent among frail and depressed male individuals with a bad health self-assessment and comorbidities, especially diabetes mellitus and chronic obstructive pulmonary disease. In the group with sustained potentially inappropriate medication, we found a worsening health self-assessment, increased frailty, a higher incidence of recurrent falls and prevalence of depression, as well as a higher hospital admission rate, ambulatory medical consultation, and more prescribed medications. We did not find an impact on functional capacity. Conclusions: We validated the negative effects of potentially inappropriate medication in the long run for the health of older people and, therefore, potentially inappropriate medications should be monitored in primary care services to avoid greater risks.

Resumen | Introducción. La medicación potencialmente inapropiada se asocia con consecuencias clínicas, geriátricas, funcionales y farmacoeconómicas negativas. Objetivo. Estimar la prevalencia y los tipos de medicación potencialmente inapropiada según los criterios de Beers en ancianos que viven en comunidad y determinar las principales consecuencias clínicas y funcionales a lo largo de dos años de seguimiento. Materiales y métodos. Se hizo un estudio descriptivo, observacional y longitudinal que incluyó 400 mayores de 65 años (48 % mujeres) residentes en la comunidad seleccionados mediante muestreo aleatorio simple en el 2012. En el seguimiento del 2014 se reevaluaron 372 de ellos y se clasificaron en dos grupos: quienes a lo largo de los dos años siguieron tomando medicación potencialmente inapropiada y quienes no. Resultados. El 31 % de los ancianos estaban polimedicados, (5 a 9 medicamentos) y 1,8 % polimedicados de forma excesiva (10 o más medicamentos). El promedio de consumo de medicamentos era mayor en el grupo de medicación potencialmente inapropiada (3 Vs. 5,78; p<0,001), y el 21,9 % siguieron recibiendo medicación poitencialmente inapropiada durante el seguimiento; de ellos, el 75 % recibía un medicamento de este tipo y el 23 %, dos. El uso de dicha medicación fue más frecuente en hombres frágiles con una mala percepción de la propia salud, depresión y un mayor número de comorbilidades, especialmente diabetes mellitus y enfermedad-pulmonar-obstructiva-crónica. En el grupo que siguió recibiendo medicación potencialmente inapropiada la percepción de la propia salud empeoró, con un incremento de la fragilidad, las caídas recurrentes y la depresión, así como en los ingresos hospitalarios y las consultas médicas y mayor cantidad de medicamentos formulados. No se evidenció un impacto en la capacidad funcional. Conclusiones. Se corroboran los efectos negativos a largo plazo de la medicación potencialmente inapropiada en la salud de los ancianos, por lo cual se la debe monitorizar en la atención primaria para evitar mayores riesgos.

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Background: The elderly people have high morbimortality associated with respiratory disorders, in addition to the presence of other safety risk factors, such as the use of potentially inappropriate medication and the occurrence of drug interactions. Objective: Considering the current pandemic scenario, it was intended to identify explicit criteria-based tools that reported drug interactions between potentially inappropriate medication and respiratory system disorders and possibly worse prognosis of COVID-19 infection. Methods: A systematic scoping review was conducted until February 2020. Study characteristics of explicit criteria-based tools, and potentially inappropriate medication, drug interactions, and therapeutic management, were extracted. Results: Nineteen explicit criteria-based tools were included. Nineteen drug interactions and 17 potentially inappropriate medications with concerns for three respiratory disorders (asthma, chronic pulmonary obstructive disease, and respiratory failure) were identified. The most frequent pharmacological classes reported were benzodiazepines and beta-blockers. For clinical management, the tools recommend using cardioselective beta-blockers, calcium channel blockers, angiotensin-converting enzyme inhibitors, and angiotensin II type I receptor blockers and benzodiazepines with a short or intermediate half-life. Conclusion: Considering the increased risk of COVID-19 infection in the elderly, drug interactions and the use of potentially inappropriate medication associated with the occurrence of adverse drug events in the respiratory system may also worsening COVID-19 infection in patients with uncontrolled respiratory disorders. Thus, it is essential to assess drug therapy in use, to identify safety risks and monitor the elderly in general and those with a worse prognosis concerning COVID-19, promoting patient safety.

Antecedentes: Los ancianos tienen alta morbimortalidad asociada a trastornos respiratorios, además de la presencia de otros factores de riesgo de seguridad, como el uso de medicación potencialmente inapropiada y la ocurrencia de interacciones medicamentosas. Objetivo: Teniendo en cuenta el escenario pandémico actual, se pretendía identificar herramientas explícitas basadas en criterios que informaran interacciones farmacológicas entre medicamentos potencialmente inapropiados y trastornos del sistema respiratorio y posiblemente un peor pronóstico de la infección por COVID-19. Métodos:Se realizó una revisión sistemática del alcance hasta febrero de 2020. Se extrajeron las características del estudio de las herramientas explícitas basadas en criterios y la medicación potencialmente inapropiada, las interacciones entre medicamentos y el manejo terapéutico. Resultados: Se incluyeron diecinueve herramientas explícitas basadas en criterios. Se identificaron diecinueve interacciones farmacológicas y 17 medicamentos potencialmente inapropiados con preocupaciones por tres trastornos respiratorios (asma, enfermedad pulmonar obstructiva crónica e insuficiencia respiratoria). Las clases farmacológicas más frecuentes comunicadas fueron las benzodiacepinas y los betabloqueantes. Para el manejo clínico, las herramientas recomiendan el uso de betabloqueantes cardioselectivos, bloqueadores de los canales de calcio, inhibidores de la enzima convertidora de angiotensina y bloqueadores del receptor de angiotensina II tipo I y benzodiacepinas con una vida media corta o intermedia. Conclusión: Teniendo en cuenta el mayor riesgo de infección por COVID-19 en los ancianos, las interacciones farmacológicas y el uso de medicamentos potencialmente inapropiados asociados con la aparición de eventos farmacológicos adversos en el sistema respiratorio también pueden empeorar la infección por COVID-19 en pacientes con trastornos respiratorios no controlados. Por tanto, es fundamental evaluar la farmacoterapia en uso, identificar los riesgos de seguridad y monitorizar a los ancianos en general y a aquellos con peor pronóstico en relación con el COVID-19, promoviendo la seguridad del paciente.

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ABSTRACT Objective: to analyze factors associated with the use of potentially inappropriate medications by elderly people with hypertension. Method: a cross-sectional study, conducted in the first semester of 2016, with elderly people undergoing treatment for hypertension, living in the city of Maringá. Interviews, medical records analysis, and measurement of clinical and anthropometric parameters of the participants were carried out. Inferential analysis was used. Results: a total of 260 elderly people who used potentially inappropriate medications participated in the study. The high use of these medications was associated with clinical and anthropometric conditions, such as obesity (p=0.022), smoking (p=0.004), polypharmacy (p=0.034) and the health services provided, such as organizationally accessible treatment (p=0.027) and consultation time (p=0.007), predisposing to low adherence to routine consultations (p=0.003). Conclusion: it was shown that the factors associated with the use of potentially inappropriate medications were associated with anthropometric, clinical, and organizational variables, intrinsic to the family health strategy.

RESUMEN Objetivo: analizar factores asociados con el uso de medicamentos potencialmente inapropiados por ancianos con hipertensión. Método: estudio transversal, realizado en el primer semestre de 2016, con ancianos en tratamiento por hipertensión, residentes en la ciudad de Maringá. Se realizaron entrevistas, análisis de historias clínicas y medición de parámetros clínicos y antropométricos de los participantes. Se utilizó análisis inferencial para tratar las variables. Resultados: en el estudio participaron 260 ancianos, que utilizaron medicamentos potencialmente inapropiados. El alto uso de estos medicamentos se asoció con condiciones clínicas y antropométricas, como obesidad (p=0,022), tabaquismo (p=0,004), polifarmacia (p=0,034) y los servicios de salud ofrecidos, como tratamiento organizacionalmente accesible (p=0,027) y tiempo de consulta (p=0,007), lo que predispone a una baja adherencia a las consultas de rutina (p=0,003). Conclusión: se evidenció que los factores asociados al uso de medicamentos potencialmente inapropiados se asociaron con variables antropométricas, clínicas y organizacionales, intrínsecas a la Estrategia de Salud Familiar.

RESUMO Objetivo: analisar os fatores associados ao uso de medicamentos potencialmente inapropriados por idosos com hipertensão. Método: estudo transversal, realizado no primeiro semestre de 2016, com idosos em tratamento da hipertensão, residentes no município de Maringá. Realizou-se entrevista, análise de prontuário e aferição de parâmetros clínicos e antropométricos dos participantes. Utilizou-se análise inferencial para tratamento das variáveis. Resultados: participaram do estudo 260 idosos, que faziam uso de medicamentos potencialmente inapropriados. O uso elevado dessas medicações se associou às condições clínicas e antropométricas, como obesidade (p=0,022), tabagismo (p=0,004), polifarmácia (p=0,034) e aos serviços de saúde ofertados, como tratamento organizacionalmente acessível (p=0,027) e tempo de consulta (p=0,007), predisponente à baixa aderência às consultas de rotina (p=0,003). Conclusão: evidenciou-se que os fatores associados ao uso de medicamentos potencialmente inapropriados se associaram a variáveis antropométricas, clínicas e organizacionais, intrínsecas a estratégia saúde da família.

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ABSTRACT Objective: To identify polypharmacy and potentially inappropriate medications (PIM) for elder people with chronic health situations and its implications for gerontological nursing. Method: Descriptive and transversal study, conducted from March to September 2016 by pharmaceutical residents in the clinic of Endocrinology of a hospital in Mid-West region of Brazil. Results: 44 elder people with an average age of 69.5 (± 6.79) years old had their assessed prescriptions. We identified 65 medications prescribed 253 times, in which 10 PIM (15.4%) were prescribed 51 times. 33 seniors (72.7%) had at least one PIM, of those, 66.7% were polymedicated. Of the total, 22 elder people (50%) were subjected to polypharmacy and made use of at least one PIM. Conclusion: The results showed high incidence of PIM and polypharmacy, as well as their physiological impacts to the elder population. The study provokes discussions about that the trained nurse in human aging has skills and competencies able to enhance interventions related to pharmacotherapy.

RESUMEN Objetivo: Identificar polifarmacia y medicamentos potencialmente inapropiados (MPI) para ancianos con situaciones crónicas de salud y sus implicaciones para enfermería gerontológica. Método: Estudio descriptivo, transversal, realizado de marzo a septiembre de 2016 por residentes farmacéuticos, en el ambulatorio de endocrinología de un hospital en el Centro-Oeste de Brasil. Resultados: Cuarenta y cuatro ancianos con edad media de 69,5 (± 6,79) años tuvieron sus prescripciones evaluadas. Se identificaron 65 medicamentos prescritos 253 veces, siendo que 10 MPI (15,4%) fueron prescritos 51 veces. Treinta y tres ancianos (72,7%) presentaron al menos un MPI, de los que el 66,7% eran polimedicados. Del total, 22 ancianos (50%) estaban sometidos a la polifarmacia y utilizaban al menos un MPI. Conclusión: Los resultados evidenciaron alta incidencia de MPI y polifarmacia, así como sus impactos fisiológicos a la población anciana. El estudio provoca discusiones acerca de que el enfermero capacitado sobre el envejecimiento humano tiene habilidades y competencias que potencializan intervenciones relacionadas a la farmacoterapia.

RESUMO Objetivo: Identificar polifarmácia e medicamentos potencialmente inapropriados (MPI) para idosos com situações crônicas de saúde e suas implicações para enfermagem gerontológica. Método: Estudo descritivo, transversal, realizado de março a setembro de 2016 por residentes farmacêuticos, no ambulatório de endocrinologia de um hospital no Centro-Oeste do Brasil. Resultados: Quarenta e quatro idosos com idade média de 69,5 (± 6,79) anos tiveram suas prescrições avaliadas. Identificaram-se 65 medicamentos prescritos 253 vezes, sendo que 10 MPI (15,4%) foram prescritos 51 vezes. Trinta e três idosos (72,7%) apresentaram pelo menos um MPI, desses, 66,7% eram polimedicados. Do total, 22 idosos (50%) estavam submetidos à polifarmácia e faziam uso de pelo menos um MPI. Conclusão: Os resultados evidenciaram alta incidência de MPI e polifarmácia, bem como seus impactos fisiológicos à população idosa. O estudo provoca discussões acerca de que enfermeiro capacitado sobre o envelhecimento humano possui habilidades e competências capazes de potencializar intervenções relacionadas à farmacoterapia.

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OBJECTIVES: To perform a list agreed by Argentinean experts and adapted to the local context containing potentially inappropriate (PI) medications in old people (OP) usingthe Delphi consensus technique optimized for this subject. METHODS: A preliminary list of potentially inappropriate medications (PIM) was drawn up based on foreign PIM lists and a selective search in the scientific literature. The iterative Delphi process was used to submit the active pharmaceutical ingredients (APIs) of the preliminary PIM list to the panel of Argentinean experts. The analysis of theanswers to determine the arrival to the consensus was carried out applying three criteria specially defined for this purpose. RESULTS: After two Delphi rounds, it was not reached agreement about 12 APIs. The List of explicit criteria for PIAPIs for use in OP (IFAsPIAM List) was finally constituted by 128 APIs corresponding to 9 groups of the ATC classification system to which they were organized. In addition to each API, information justifying the unfavorable benefit/risk profile and therapeutic alternatives or recommendations/precautions was recorded. The group with the most PI APIs was N (NervousSystem) (60; 47%) followed by groups C (Cardiovascular) and M (Musculoskeletal). CONCLUSION: This study presents the first Latin American list of PIM in OP developed using an expert consensus technique. The IFAs PIAM List would contribute to the rational use of drugs in elderly population, constituting a valuable tool in Argentinean public health.

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