[Suitability of pharmacological treatment in patients with multiple chronic conditions]

Potentially inappropriate prescriptions according to explicit and implicit criteria in patients with multimorbidity and polypharmacy. MULTIPAP: A cross-sectional study

Background

Multimorbidity is a global health challenge that is associated with polypharmacy, increasing the risk of potentially inappropriate prescribing (PIP). There are tools to improve prescription, such as implicit and explicit criteria.

Objective

To estimate the prevalence of PIP in a population aged 65 to 74 years with multimorbidity and polypharmacy, according to American Geriatrics Society Beers Criteria^® (2015, 2019), the Screening Tool of Older Person’s Prescription -STOPP- criteria (2008, 2014), and the Medication Appropriateness Index -MAI- criteria in primary care.

Methods

This was an observational, descriptive, cross-sectional study. The sample included 593 community-dwelling elderly aged 65 to 74 years, with multimorbidity and polypharmacy, who participated in the MULTIPAP trial. Socio-demographic, clinical, professional, and pharmacological-treatment variables were recorded. Potentially inappropriate prescribing was detected by computerized prescription assistance system, and family doctors evaluated the MAI. The MAI-associated factors were analysed using a logistic regression model.

Results

A total of 4,386 prescriptions were evaluated. The mean number of drugs was 7.4 (2.4 SD). A total of 94.1% of the patients in the study had at least one criterion for drug inappropriateness according to the MAI. Potentially inappropriate prescribing was detected in 57.7%, 43.6%, 68.8% and 71% of 50 patients according to the explicit criteria STOPP 2014, STOPP 2008, Beers 2019 and Beers 2015 respectively. For every new drug taken by a patient, the MAI score increased by 2.41 (95% CI 1.46; 3.35) points. Diabetes, ischaemic heart disease and asthma were independently associated with lower summated MAI scores.

Conclusions

The prevalence of potentially inappropriate prescribing detected in the sample was high and in agreement with previous literature for populations with multimorbidity and polypharmacy. The MAI criteria detected greater inappropriateness than did the explicit criteria, but their application was more complex and difficult to automate.

[Potentially inappropriate prescription according to the "STOPP" Criteria in heavily polymedicated elderly patients]

INTRODUCTION

Appropriate prescribing is especially relevant in elderly people. The objective of this study is to analyse the potentially inappropriate prescription (PIP) in heavily polymedicated elderly patients according to the criteria Screening Tool of Older Person's Prescriptions.

PATIENTS AND METHODS

A descriptive cross-sectional study was conducted in Primary Care on patients assigned to the Siero-Sariego (Asturias) Health Centre, who were over 64 years old and heavily polymedicated (consumption >10 drugs for six months). The 65 Screening Tool of Older Person's Prescriptions criteria were reviewed in the electronic Primary Care patient records, collecting sociodemographic variables, prescribed medications, and chronic diseases. Frequency distributions were made for each criterion, and causes related to PIP were explored using contingency tables, the Spearman correlation coefficient, and logistic regression.

RESULTS

A total of 349 polymedicated elderly patients were analysed with a prevalence of 6.4 (95% CI:5.76-7.08), a mean age of 79.2 years (SD:3.7), 62.2% were female, 14% institutionalised, a Charlson index of 2.9. The mean of number of drugs was 11.5 (SD:1.7), and the most frequent pathologies were high blood pressure (64%), diabetes (46%), and osteoarticular diseases (41%). There was at least one PIP in 72.9% of heavily polymedicated elderly patients [(Mean: 1.32 (SD:1.2)]. The Screening Tool of Older Person's Prescriptions criteria least complied with were: therapeutic duplication (25.2%), use of long-acting benzodiazepines (15.8%), and inappropriate use of aspirin (10.9%). An association was found between having any inappropriate prescription and the number of medications prescribed (OR=1.22 [95% CI:1.04-1.43]) and inversely to the Charlson index (OR=0.76 [95% CI:0.65-0.89]).

CONCLUSIONS

PIP is common in heavily polymedicated elderly patients. Special attention must be paid to the use of psychotropic drugs, which are implicated in a high volume of PIP.

[Pharmacological treatment conciliation methodology in patients with multiple conditions]

Objetivo

Realizar una revisión bibliográfica para identificar las diferentes metodologías empleadas en el proceso de conciliación de los tratamientos farmacológicos que sean aplicables a pacientes pluripatológicos.

Diseño

Revisión sistemática.

Fuentes de datos

Se realizó una revisión bibliográfica (febrero de 2012) en las bases de datos Pubmed, EMBASE, CINAHL, PsycINFO e Índice Médico Español de métodos de conciliación del tratamiento en pacientes pluripatológicos, o en su defecto, ancianos o polimedicados.

Selección de estudios

Se recuperaron 273 artículos, de los que se seleccionaron 25.

Extracción de datos

Se extrajo información relativa a la metodología empleada: nivel asistencial en el que se realiza, fuentes de información, uso de formulario, tiempo establecido, profesional responsable, información recogida y variables registradas como errores de conciliación.

Resultados

La mayoría de estudios fueron al ingreso y al alta hospitalarios Como principales fuentes de información destacan la entrevista y la historia clínica. En la mayoría de trabajos no se especifica un tiempo preestablecido, ni se usa formulario, y el principal responsable es el farmacéutico clínico. Además de la medicación domiciliaria, los hábitos de automedicación y la fitoterapia también son registrados. Se recogen como errores de conciliación desde omisiones de fármacos hasta interacciones medicamentosas.

Conclusiones

Existe gran heterogeneidad en la metodología empleada para la actividad de la conciliación. No existe ningún trabajo realizado específicamente en el paciente pluripatológico, que por su complejidad y susceptibilidad a errores de conciliación requiere una metodología estandarizada.