Características clínicas predictoras de déficit de vitamina B12 de diabetes mellitus 2 tratada con metformina / Clinical characteristics of vitamin B12 deficiency predictors in metformin-treated type-2 diabetes mellitus

ntroducción: el consumo de metformina se asocia con déficit de vitamina B12. Objetivo: identificar las características clínicas predictoras del déficit en mayores de 18 años con diabetes mellitus tipo 2 (DM2) tratados con metformina. Materiales y métodos: estudio de corte transversal analítico en 100 pacientes entre 50 y 85 años con DM2 tratados con metformina por más de 3 meses, con registro de niveles de vitamina B12 en la historia clínica, atendidos en un programa de diabetes de medicina familiar en Bogotá DC, Colombia. Resultados: la media de duración de la enfermedad fue 9.6 años, el uso de metformina varió entre 1 y 5 años (32%), la dosis más utilizada estuvo entre 1001 y 2000 mg (65%), polifarmacia en 45% y la prevalencia del déficit en 27%. En el modelo de regresión logística se encontró que el tiempo de uso se comporta como factor predictor de déficit de vitamina B12 (OR=0,01 IC95% 0,01-0,03) (p<0,05), la polifarmacia (OR=1.21 IC95% -0,06-2,5) y la duración de la diabetes (OR=1.14 IC95% 0,99-1,32) emergen como factores predictores, pero sin diferencia estadísticamente significativa.Conclusión: el tiempo de uso de metformina es una característica clínica que puede ser predictora del déficit de vitamina B12, la prevalencia del déficit en nuestro estudio fue alta, consideramos recomendable realizar una búsqueda activa en la práctica clínica

ntroduction: the metformin use is related to vitamin B12 deficiency. Objective: to identify the clinical characteristics that predict B12 deficiency in metformin-treated type-2 diabetes mellitus (T2DM) patients, aged 18 years or older. Materials and methods: analytical cross-sectional study including 100 T2DM patients aged between 50 and 85 years, on metformin for more than 3 months, with vitamin B12 levels recorded in their clinical record, seen in a family medicine diabetes program in Bogotá DC, Colombia. Results: the median duration of the disease was 9.6 years, metformin use ranged between 1 and 5 years (32%), the most commonly used dose ranged between 1001 and 2000 mg (65%), polypharmacy was evidenced in 45% and B12 deficiency prevalence was 27%. The logistic regression analysis showed that time of metformin use behaved as a predictor of vitamin B12 deficiency (OR=0.01 CI95% 0.01-0.03) (p<0.05). Polypharmacy (OR=1.21 CI95% -0.06-2.5) and diabetes duration (OR=1.14 CI95% 0.99-1.32) emerged as predictor factors, but with no statistically significant difference. Conclusion:duration of metformin use is a clinical variable that can be a predictor of vitamin B12 deficiency. Prevalence of B12 deficiency was high in our study. We recommend an active search of this deficiency in clinical practice

Evaluation of a Non-Face-to-Face Multidisciplinary Health Care Model in a Population with Rheumatoid Arthritis Vulnerable to COVID-19 in a Health Emergency Situation.

This study evaluated a non-face-to-face-multidisciplinary consultation model in a population with rheumatoid arthritis (RA) during the COVID-19 pandemic. This is an analytical observational study of a prospective cohort with simple random sampling. RA patients were followed for 12 weeks (Jul-Oct 2020). Two groups were included: patients in telemedicine care (TM), and patients in the usual face-to-face care (UC). Patients could voluntarily change the care model (transition model (TR)). Activity of disease, quality of life, disability, therapeutic adherence, and self-care ability were analyzed. Bivariate analysis was performed. A qualitative descriptive exploratory study was conducted. At the beginning, 218 adults were included: (109/TM-109/UC). The groups didn't differ in general characteristics. At the end of the study, there were no differences in TM: (n = 71). A significant (p < 0.05) decrease in adherence, and increase in self-care ability were found in UC (n = 18) and TR (n = 129). Seven patients developed COVID-19. Four categories emerged from the experience of the subjects in the qualitative assessment (factors present in communication, information and communication technologies management, family support and interaction, and adherence to treatment). The telemedicine model keeps RA patients stable without major differences compared to the usual care or mixed model.

[Quality of clinical practice guidelines published in nutrition in hospitalized oncological adult patients]. / Calidad de las guías de práctica clínica publicadas en nutrición de pacientes hospitalizados adultos oncológicos.

BACKGROUND: There is a high variability in clinical practice regarding nutritional care which could affect nutritional status of oncological patients. This variability can be diminished following evidence based recommendations from clinical practice guidelines (CPG) with good methodological quality in its development. OBJECTIVE: To review and evaluate the quality of published guidelines in nutrition in hospitalized oncological adult patients. METHODS: A search of CPGs was conducted in MEDLINE, EMBASE, GIN, TripDatabase and pages of recognized guidelines developers. CPGs published between 2003 and 2012 were included. Four independent reviewers assessed the quality of CPGs using the AGREE II instrument. Characteristics of assessed guidelines were extracted and analyzed. RESULTS: 22 CPGs met selection criteria. 90% of guidelines are written in English. There was great variability in quality scores for each domain. Highest rated domain was "clarity of presentation" (median 65.95, range 19.40 to 93.10) while the lowest was "Applicability" (median 21.20, range 0 to 77.10). Sixteen guidelines scored low on "rigour of development" and six had an acceptable or good quality. Only five documents can be considered as "good quality guidelines" because they showed high performance in all domains. CONCLUSION: It was found a wide range of methodological quality scores of evaluated CPGs. Highest rated guidelines are made by agencies that develop guidelines but these are little known in our country. Most of the assessed guidelines have methodological weaknesses, which can affect the quality of the recommendations they make and its validity.

Calidad de las guías de práctica clínica publicadas en nutrición de pacientes hospitalizados adultos oncológicos / Quality of clinical practice guidelines published in nutrition in hospitalized oncological adult patients

Introducción: Existe alta variabilidad en la práctica clínica en nutrición que podría afectar el estado nutricional del paciente oncológico. Esta variabilidad disminuye con el uso de recomendaciones válidas basadas en la evidencia proveniente de guías de práctica clínica (GPC) con adecuada calidad metodológica en su elaboración. Objetivo: Revisar y evaluar la calidad de las guías publicadas en nutrición de pacientes adultos oncológicos hospitalizados. Métodos: Una búsqueda de GPC fue realizada en MEDLINE, EMBASE GIN, TripDatabase y páginas de elaboradores reconocidos de guías. Se incluyeron guías basadas en la evidencia publicadas entre 2003 y 2012. Cuatro revisores independientes evaluaron la calidad de las GPC usando el instrumento AGREE II. Las características de las guías evaluadas fueron extraídas y analizadas. Resultados: Fueron seleccionadas 22 GPC. Un 90% de las guías están escritas en inglés. Hubo gran variabilidad en los puntajes de calidad de cada dominio. El dominio mejor puntuado fue "Claridad de la presentación" (mediana 65,95, rango 19,40-93,10) mientras que el más bajo fue "Aplicabilidad" (mediana 21,20, rango 0,077,10). Dieciséis guías puntuaron bajo en "Rigor metodológico" y seis presentaron una calidad aceptable o buena. Cinco GPC presentaron un alto desempeño en todos los dominios y fueron consideradas de alta calidad. Conclusión: Hubo un amplio rango de puntajes de calidad metodológica de las GPC. Las guías mejor puntuadas son elaboradas por entidades desarrolladores de guías, pero poco conocidas en nuestro medio. Muchas GPC presentan debilidades metodológicas que pueden afectar la calidad de las recomendaciones que emiten y por lo tanto su validez (AU)

Background: There is a high variability in clinical practice regarding nutritional care which could affect nutritional status of oncological patients. This variability can be diminished following evidence based recommendations from clinical practice guidelines (CPG) with good methodological quality in its development. Objective: To review and evaluate the quality of published guidelines in nutrition in hospitalized oncological adult patients. Methods: A search of CPGs was conducted in MEDLINE, EMBASE, GIN, TripDatabase and pages of recognized guidelines developers. CPGs published between 2003 and 2012 were included. Four independent reviewers assessed the quality of CPGs using the AGREE II instrument. Characteristics of assessed guidelines were extracted and analyzed. Results: 22 CPGs met selection criteria. 90% of guidelines are written in English. There was great variability in quality scores for each domain. Highest rated domain was "clarity of presentation" (median 65.95, range 19.40 to 93.10) while the lowest was "Applicability" (median 21.20, range 0 to 77.10). Sixteen guidelines scored low on "rigour of development" and six had an acceptable or good quality. Only five documents can be considered as "good quality guidelines" because they showed high performance in all domains. Conclusion: It was found a wide range of methodological quality scores of evaluated CPGs. Highest rated guidelines are made by agencies that develop guidelines but these are little known in our country. Most of the assessed guidelines have methodological weaknesses, which can affect the quality of the recommendations they make and its validity (AU)