Avaliação de interações medicamentosas potenciais em prescrições da atenção primária de Vitória da Conquista (BA), Brasil

Evaluation of Quality of Life of Primary Health Care Patients in Brazil: Influence of Drug Interactions, Common Mental Disorders, and Use of Psychiatric Medication

The objectives of this study were to identify the interaction between drug interaction risk, common mental disorders, use of psychiatric medication and quality of life in patients treated in primary health care settings in Brazil. In this quantitative research, 452 patients were interviewed in ten basic Brazilian health units. Sociodemographic and pharmacotherapeutic questionnaires, use of psychiatric medication, prevalence of common mental disorders, and quality of life were utilised. The structural equation model was used to evaluate the relationships among the variables. The prevalence of drug interaction risk was 66.59%. The variables associated with drug interaction risk were polypharmacy and income. The use of psychiatric medication was associated with diagnosis of common mental disorders, income and gender. The use of psychiatric medication and common mental disorders negatively influenced quality of life.

Predictors of drug-drug interactions of medications prescribed to patients admitted due to suicidal behavior

INTRODUCTION

Drug-drug interactions among people with suicidal behavior is a challenging topic, considering the harm it poses for patients already vulnerable and the lack of literature on the thematic. This aspect must not be neglected in research and clinical practice, and thus requires thorough investigation.

OBJECTIVE

to investigate predictors of drug-drug interaction of prescribed drugs and the prescription of two or more drugs for people admitted due to suicidal behavior in a psychiatric emergency department (short-stay hospital ward).

METHOD

A cross-sectional study with retrospective approach, carried out in a Brazilian psychiatric emergency unit in 2015. Data about first and last medical prescriptions were collected from 127 patients' files. Descriptive statistics and the Zero Adjusted Logarithmic Distribution (ZALG) model were adopted, with the significance level α = 0.05.

RESULTS

Potential drug-drug interactions were found in most of the first and last prescriptions. The sample majority were female, with previous suicide attempts, being discharged from the hospital with three drugs (or more) prescribed, and without referral to any health service. Age and comorbidities were predictors of more drug prescriptions and the amount of prescribed drugs was the most important predictor of drug-drug interactions (quantity and severity).

CONCLUSIONS

the variables associated with drug-drug interactions and prescription of two or more drugs among people with suicidal behavior needs to be investigated in different contexts and addressed in interventions with the aim to promote patient safety.

[Potential drug interactions in adults and the elderly in primary health care]

The objective of the present study was to characterize the potential drug interactions (PDI), estimating the factors associated to their occurrence in adults and the elderly assisted by the Programa Médico de Família de Niterói, Rio de Janeiro. This is a sub-study of STUDY DIGITALIS, which included individuals enrolled in the Niteroi Family Medical Program (45-99 years). In this study, 341 individuals with a prescription of two or more drugs were analyzed. The classification of PDI followed MICROMEDEX. There were 113 different interactions. Of the total number of individuals, 63.6% had at least one PDI. The variables with higher probability of PDI were: lower level of schooling; income less than R$800.00; absence of health plan; previous diagnosis of hypertension and diabetes; use of 5 or more medications prescribed. After adjustment, the variables previous diagnosis of hypertension and diabetes and use of 5 or more prescription drugs remained statistically significant. Careful management of primary care treatment with monitoring is important in patients with PDI, especially in patients who are more susceptible.

The iatrogenic triad in a group of elderly women contracted to a health plan

Abstract Objective: to study the main elements of the iatrogenic triad in a group of elderly women with a Chronic Non-Communicable Disease (CNCD) contracted to a health plan. Method: A cross-sectional and descriptive epidemiological study was carried out by analyzing 3,501 medical prescriptions of 725 elderly women aged ≥65 years. The medications were determined to be Potentially Inappropriate Medications (PIM) based on four instruments (AGS Beers 2015, PRISCUS List, EU(7)-PIM, Brazilian Consensus of PIM - CBPIM). In addition, the most prescribed drugs were assessed for possible Drug Interactions (DI) and classified according to degree of severity. Results: the present study revealed that 89.3% of the studied group used at least one element of the iatrogenic triad, and 44.9% of the sample were associated with the use of polypharmacy and PIM. A total of 48.0% were taking at least five continuous use medications. The main DI were omeprazole, simvastatin and levothyroxine, all of which are of significant severity and have potential drug-food interactions. A total of 35.1% of PIM were identified through the four criteria used, 26.6% were identified by the CBPIM, 25.8% by the EU(7)-PIM, and 24.6% and 6.6% by AGS Beers and PRISCUS, respectively. Conclusion: a high index of continuous use medications, PIM and potential DI were identified, mainly enzymatic inhibitors in a group of elderly women at risk due to their clinical characteristics. Old age was associated with the presence of all the elements of the iatrogenic triad. It was also noted that there were no significant differences between the criteria applied, except for the PRISCUS list.

Evaluation of drug prescriptions for pregnant women in the Legal Amazon Region

Abstract Objectives: to evaluate the drug prescriptions for pregnant women in the Legal Amazon during prenatal care. Methods: this is a pharmacoepidemiological, descriptive, retrospective and cross-sectional study. Medical records included sociodemographic variables, prenatal care, most frequent pharmacological classes prescribed, risk classification of drugs and possible drug-drug interactions among pregnant women. Results: a total of 159 records from pregnant women, enrolled in the Unified Health System were used. Most pregnant women began prenatal consultations in the first trimester of pregnancy (53.3%) whereas most of the drugs were prescribed in the second gestational trimester (55.5%). The most used pharmacological classes, classified according to the National List of Essential Drugs were: antianemic preparations (52.9%), vitamins (12.5%) and analgesic (10.6%). According to the risk classification, the highest prevalence of prescribed drugs belongs to category A (46.8%), followed by category C (28.9%), category B (20.0%) and category D (4.3%). Eight possible drug-drug interactions were found, being considered with mild severity, and six classified with moderate risk. Conclusions: the results demonstrate a lack of information regarding prescription drugs for pregnant women and this may endanger maternal and fetal health. It is essential that medical records be an effective therapeutic tool, which should be read, analyzed and reviewed in order to ensure effective and safe medical treatment.

Profile of elderly persons with metabolic syndrome and factors associated with possible drug interactions

Abstract Objectives: To describe the sociodemographic, clinical and pharmacotherapy characteristics of elderly persons with metabolic syndrome and to identify factors associated with drug interactions among these individuals. Method: A quantitative, analytical and transversal study was carried out among 263 elderly people with metabolic syndrome in the urban area of Uberaba, Minas Gerais, Brazil. Possible drug interactions were identified and classified according to the Micromedex® DrugReax System. The chi-squared test and the multiple logistic regression model were used for analysis (p<0.05). Results: The majority of the individuals were female (70.7%); aged 60 to 74 years (72.3%); lived with a spouse/partner (63.9%); had some schooling (74.1%); an individual monthly income of ≤ one minimum wage (77.1%); lived with others (88.2%); had five or more morbidities (89.7%) and exhibited polypharmacy (73.0%); used potentially inappropriate medications (54.4%) and had possible drug interactions (75.3%). Associated with the possible presence of drug interactions were: age range (p=0.005), polypharmacy (p<0.001) and use of potentially inappropriate medications (p=0.006). Conclusion: Possible drug interactions were associated with increased age, polypharmacy and the use of potentially inappropriate medications. This study contributes to knowledge of these possible interactions among elderly people with metabolic syndrome, and as such can be considered an important tool for planning actions to ensure the safety of these individuals who, due to the complexity of their treatment, use multiple medications.

Adequação da prescrição de medicamentos na Atenção Primária à Saúde de Ribeirão Preto-SP: estudo transversal

Objetivo: Este estudo transversal visa analisar comparativamente as prescrições de medicamentos provenientes da atenção básica tradicional (Unidades Básicas de Saúde - UBS) com as da Estratégia de Saúde da Família (ESF). Métodos: Foram incluídas 1053 prescrições, alocadas em dois grupos: 932 provenientes de UBS e 121 da ESF. Tais prescrições foram analisadas de acordo com a adequação aos itens legalmente exigidos e aos indicadores de qualidade (presença de antimicrobianos, presença de injetáveis, uso da denominação oficial, uso da relação de medicamentos essenciais, média de medicamentos prescritos). Resultados: As prescrições da ESF se mostraram estatisticamente mais completas quanto à presença do endereço do prescritor (82,6% UBS, 96,7% ESF), à ausência de rasuras (90,3% UBS, 96,7% ESF) e ao cumprimento dos aspectos legais exigidos referentes ao uso do medicamento, sendo eles: forma farmacêutica (70,7% UBS, 80,2% ESF), dose (70,9% UBS, 79,3% ESF), posologia (63,0% UBS, 75,2% ESF), via de administração (58,3% UBS, 83,5% ESF) e duração do tratamento (76,9% UBS, 92,6% ESF). Os resultados dos indicadores de qualidade da prescrição se aproximaram nos dois modelos de atenção básica e estão de acordo com os valores recomendados, com exceção da média de medicamentos prescritos, a qual evidenciou uma tendência à polifarmácia no município (3,9 medicamentos por prescrição na UBS e 3,5 na ESF). Conclusão: Apesar dos resultados revelarem práticas inapropriadas na prescrição de medicamentos na Atenção Primária como um todo, há evidências de que as prescrições da ESF estão mais próximas ao padrão ideal, o que pode favorecer o Uso Racional de Medicamentos.

Factors Associated with Potential Drug-Drug Interactions in Patients Attended in Primary Health Care: A Focus on Mental Health

There were no Brazilian studies regarding potential drug-drug interactions (DDIs) in primary health care (PHC) analysing common mental disorders (CMDs) and psychotropic medication.

OBJECTIVES

To identify DDI prevalence in that setting; to classify DDI; to verify correlations with demographics, pharmacotherapeutics, psychotropic medication and CMDs. Among 430 patients interviewed 190 had more than two medications prescribed, 58.4% had DDI. Factors associated were age and number of medications. Nine types of severe DDI composed 28% patients' prescriptions, 71.9% involving psychotropic medication. Only the number of types of drugs contributed to the regression model. Results raise important aspects regarding patient safety in PHC units in Brazil are where patients with psychological complaints have to seek for health care firstly.

Potential intravenous drug interactions in intensive care

OBJECTIVE

To analyze potential intravenous drug interactions, and their level of severity associated with the administration of these drugs based on the prescriptions of an intensive care unit.

METHOD

Quantitative study, with aretrospective exploratory design, and descriptive statistical analysis of the ICU prescriptions of a teaching hospital from March to June 2014.

RESULTS

The sample consisted of 319 prescriptions and subsamples of 50 prescriptions. The mean number of drugs per patient was 9.3 records, and a higher probability of drug interaction inherent to polypharmacy was evidenced. The study identified severe drug interactions, such as concomitant administration of Tramadol with selective serotonin reuptake inhibitor drugs (e.g., Metoclopramide and Fluconazole), increasing the risk of seizures due to their epileptogenic actions, as well as the simultaneous use of Ranitidine-Fentanyl®, which can lead to respiratory depression.

CONCLUSION

A previous mapping of prescriptions enables the characterization of the drug therapy, contributing to prevent potential drug interactions and their clinical consequences.

OBJETIVO

Analisar as potenciais interações medicamentosas intravenosas e seu grau de severidade associadas à administração desses medicamentos a partir das prescrições do Centro de Terapia Intensiva.

MÉTODO

Estudo quantitativo, tipologia retrospectiva exploratória, com análise estatística descritiva das prescrições medicamentosas do Centro de Terapia Intensiva de um Hospital Universitário, no período de março-junho/2014.

RESULTADOS

A amostra foi composta de 319 prescrições e subamostras de 50 prescrições. Constatou-se que a média de medicamentos por paciente foi de 9,3 registros, e evidenciou-se maior probabilidade para ocorrência de interação medicamentosa inerente à polifarmácia. O estudo identificou interações medicamentosas graves, como a administração concomitante de Tramadol com medicamentos inibidores seletivos da recaptação da serotonina, (exemplo: Metoclopramida e Fluconazol), aumentando o risco de convulsões devido às suas ações epileptogênicas, além do uso simultâneo de Ranitidina-Fentanil®, que pode ocasionar depressão respiratória.

CONCLUSÃO

O mapeamento prévio das prescrições possibilita a caracterização da terapêutica medicamentosa, contribuindo para obstar as potenciais interações medicamentosas e suas consequências clínicas.