6 research outputs found

    Surrogate indices of insulin resistance using the Matsuda index as reference in adult men—a computational approach

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    Background: Overweight and obesity, high blood pressure, hyperglycemia, hyperlipidemia, and insulin resistance (IR) are strongly associated with non-communicable diseases (NCDs), including type 2 diabetes, cardiovascular disease, stroke, and cancer. Different surrogate indices of IR are derived and validated with the euglycemic–hyperinsulinemic clamp (EHC) test. Thus, using a computational approach to predict IR with Matsuda index as reference, this study aimed to determine the optimal cutoff value and diagnosis accuracy for surrogate indices in non-diabetic young adult men. Methods: A cross-sectional descriptive study was carried out with 93 young men (ages 18–31). Serum levels of glucose and insulin were analyzed in the fasting state and during an oral glucose tolerance test (OGTT). Additionally, clinical, biochemical, hormonal, and anthropometric characteristics and body composition (DEXA) were determined. The computational approach to evaluate the IR diagnostic accuracy and cutoff value using difference parameters was examined, as well as other statistical tools to make the output robust. Results: The highest sensitivity and specificity at the optimal cutoff value, respectively, were established for the Homeostasis model assessment of insulin resistance index (HOMA-IR) (0.91; 0.98; 3.40), the Quantitative insulin sensitivity check index (QUICKI) (0.98; 0.96; 0.33), the triglyceride-glucose (TyG)-waist circumference index (TyG-WC) (1.00; 1.00; 427.77), the TyG-body mass index (TyG-BMI) (1.00; 1.00; 132.44), TyG-waist-to-height ratio (TyG-WHtR) (0.98; 1.00; 2.48), waist-to-height ratio (WHtR) (1.00; 1.00; 0.53), waist circumference (WC) (1.00; 1.00; 92.63), body mass index (BMI) (1.00; 1.00; 28.69), total body fat percentage (TFM) (%) (1.00; 1.00; 31.07), android fat (AF) (%) (1.00; 0.98; 40.33), lipid accumulation product (LAP) (0.84; 1.00; 45.49), leptin (0.91; 1.00; 16.08), leptin/adiponectin ratio (LAR) (0.84; 1.00; 1.17), and fasting insulin (0.91; 0.98; 16.01). Conclusions: The computational approach was used to determine the diagnosis accuracy and the optimal cutoff value for IR to be used in preventive healthcare.Fil: Malagón Soriano, Víctor Antonio. Universidad Nacional de Colombia; ColombiaFil: Ledezma Forero, Andres Julian. Universidad Nacional de Colombia; ColombiaFil: Espinel Pachon, Cristian Felipe. Universidad Nacional de Colombia. Facultad de Medicina; ColombiaFil: Burgos Cárdenas, Álvaro Javier. Universidad Nacional de Colombia. Facultad de Medicina; ColombiaFil: Garces, Maria Fernanda. Universidad Nacional de Colombia. Facultad de Medicina; ColombiaFil: Ortega Ramírez, Gustavo Eduardo. Universidad Nacional de Colombia. Facultad de Medicina; ColombiaFil: Franco Vega, Roberto. Universidad Nacional de Colombia. Facultad de Medicina; ColombiaFil: Peralta Franco, Jhon Jairo. Universidad Nacional de Colombia. Facultad de Medicina; ColombiaFil: Maldonado Acosta, Luis Miguel. Universidad Nacional de Colombia. Facultad de Medicina; ColombiaFil: Rubio Romero, Jorge Andres. Universidad Nacional de Colombia. Facultad de Medicina; ColombiaFil: Mercado Pedroza, Manuel Esteban. Universidad Nacional de Colombia. Facultad de Medicina; ColombiaFil: Caminos Cepeda, Sofia Alexandra. Universitat Pompeu Fabra; EspañaFil: Lacunza, Ezequiel. Universidad Nacional de La Plata. Facultad de Ciencias Médicas. Centro de Investigaciones Inmunológicas Básicas y Aplicadas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Rivera Moreno, Carlos Armando. Universidad Nacional de Colombia. Facultad de Medicina; ColombiaFil: Darghan Contreras, Aquiles Enrique. Universidad Nacional de Colombia. Facultad de Medicina; ColombiaFil: Ruiz Parra, Ariel Iván. Universidad Nacional de Colombia. Facultad de Medicina; ColombiaFil: Caminos, Jorge E.. Universidad Nacional de Colombia. Facultad de Medicina; Colombi

    Surrogate indices of insulin resistance using the Matsuda index as reference in adult men—a computational approach

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    BackgroundOverweight and obesity, high blood pressure, hyperglycemia, hyperlipidemia, and insulin resistance (IR) are strongly associated with non-communicable diseases (NCDs), including type 2 diabetes, cardiovascular disease, stroke, and cancer. Different surrogate indices of IR are derived and validated with the euglycemic–hyperinsulinemic clamp (EHC) test. Thus, using a computational approach to predict IR with Matsuda index as reference, this study aimed to determine the optimal cutoff value and diagnosis accuracy for surrogate indices in non-diabetic young adult men.MethodsA cross-sectional descriptive study was carried out with 93 young men (ages 18–31). Serum levels of glucose and insulin were analyzed in the fasting state and during an oral glucose tolerance test (OGTT). Additionally, clinical, biochemical, hormonal, and anthropometric characteristics and body composition (DEXA) were determined. The computational approach to evaluate the IR diagnostic accuracy and cutoff value using difference parameters was examined, as well as other statistical tools to make the output robust.ResultsThe highest sensitivity and specificity at the optimal cutoff value, respectively, were established for the Homeostasis model assessment of insulin resistance index (HOMA-IR) (0.91; 0.98; 3.40), the Quantitative insulin sensitivity check index (QUICKI) (0.98; 0.96; 0.33), the triglyceride-glucose (TyG)-waist circumference index (TyG-WC) (1.00; 1.00; 427.77), the TyG-body mass index (TyG-BMI) (1.00; 1.00; 132.44), TyG-waist-to-height ratio (TyG-WHtR) (0.98; 1.00; 2.48), waist-to-height ratio (WHtR) (1.00; 1.00; 0.53), waist circumference (WC) (1.00; 1.00; 92.63), body mass index (BMI) (1.00; 1.00; 28.69), total body fat percentage (TFM) (%) (1.00; 1.00; 31.07), android fat (AF) (%) (1.00; 0.98; 40.33), lipid accumulation product (LAP) (0.84; 1.00; 45.49), leptin (0.91; 1.00; 16.08), leptin/adiponectin ratio (LAR) (0.84; 1.00; 1.17), and fasting insulin (0.91; 0.98; 16.01).ConclusionsThe computational approach was used to determine the diagnosis accuracy and the optimal cutoff value for IR to be used in preventive healthcare

    Monitoring of adherence and clinical outcomes related to the evidence-based clinical standard for diagnosis, treatment, and follow-up of patients with obesity at the National University Hospital: cross-sectional cohort study, prior diffusion and implementation of the standard

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    ilustraciones, gráficas, tablasObjetivo Determinar la adherencia basal y los desenlaces económicos relacionados con el “Estándar Clínico Basado en la Evidencia (ECBE) para diagnóstico, tratamiento y seguimiento del paciente con obesidad en el Hospital Universitario Nacional de Colombia” de los pacientes atendidos con esta condición en 2021. Métodos Se realizó un estudio observacional descriptivo retrospectivo de corte transversal a partir de una muestra de pacientes de bases de datos administrativas del Hospital Universitario Nacional (HUN) del año 2021. Se obtuvieron datos socioeconómicos y clínicos de los pacientes con obesidad y se determinó la adherencia basal al Estándar clínico basado en la evidencia para diagnóstico, tratamiento y seguimiento del paciente con obesidad en el Hospital Universitario Nacional, mediante el cálculo de un índice global de cumplimiento (IGC) que se basó en 7 indicadores que permiten evaluar los puntos de control definidos en dicho ECBE. Además, se realizó un análisis de costos de los servicios utilizados por estos pacientes Resultados Se calculó un tamaño de muestra de 118 pacientes que tenían diagnóstico CIE-10 de obesidad en la base de datos del Hospital Universitario del año 2021 atendidos en consulta externa, sin embargo, su diagnóstico solo se confirmó en 98 pacientes al realizar la revisión de las historias clínicas de los mismos, siendo estos pacientes los incluidos en el análisis estadístico. El 69.39% (IC 95%: 58.16% - 76.53%) de los pacientes cumplió el primer indicador relacionado con la valoración por el servicio de Endocrinología a todos los pacientes con diagnóstico de obesidad. El 61.22% (IC 95%: 50% - 69.39%) cumplió el segundo indicador relacionado con el registro de talla, peso y perímetro abdominal de los pacientes con diagnóstico de esta patología. El tercer indicador relacionado con la clasificación de la obesidad a través de la solicitud y/o registro de paraclínicos de todos los pacientes con obesidad se cumplió en 38.78% (IC 95%: 26.85% - 46.94%). El cuarto indicador correspondiente a evaluación de síntomas asociados a la obesidad de todos los pacientes con diagnóstico de obesidad se cumplió en 17.35% (IC 95%: 9.18% - 24.49%). El quinto indicador el cual se relacionó con la valoración interdisciplinaria por endocrinología, medicina del deporte, nutrición y psicología de todos los pacientes con obesidad se cumplió en 22.45% (IC 95%: 14.29% - 30.61%). El sexto indicador correspondiente a la valoración y/o remisión por cirugía bariátrica de todos los pacientes con IMC mayor o igual a 40 se cumplió en el 14.29% (IC 95%: 0% - 44.44%). El séptimo y último indicador relacionado con tratamiento farmacológico en pacientes con IMC mayor o igual a 30, se cumplió en 36.73% (IC 95%: 25.51% - 44.9%). Finalmente se encontró un índice global de cumplimiento del ECBE de 40.35% (IC 95%: 34.91% - 45.47%). En promedio la atención de un paciente con diagnóstico de obesidad durante el año 2021 fue de 173.318,5pesoscolombianos.ConclusioˊnElobjetivodelestudiofueevaluarelestadobasaldelaatencioˊndepacienteobesosenelHUNconelfindehacerseguimientoalaimplementacioˊndelasrecomendacionesdelECBEdeobesidad.SeencontroˊunIGCde40.35173.318,5 pesos colombianos. Conclusión El objetivo del estudio fue evaluar el estado basal de la atención de paciente obesos en el HUN con el fin de hacer seguimiento a la implementación de las recomendaciones del ECBE de obesidad. Se encontró un IGC de 40.35% (IC 95%: 34.91% - 45.47%) durante el periodo evaluado previo a la implementación del ECBE. Por lo anterior, se requieren estrategias por parte del HUN para garantizar mayor adherencia a las recomendaciones de este ECBE y ofrecer atención integral a los pacientes obesos. A futuro con nuevos estudios, se reflejará el impacto que tendrá a nivel clínico y económico partiendo de los datos obtenidos en este estudio. (Texto tomado de la fuente).Summary Objective To determine baseline adherence and economic outcomes related to the "Evidence-Based Clinical Standard (ECBE) for diagnosis, treatment and follow-up of the patient with obesity at the National University Hospital of Colombia" of patients attended with this condition in 2021. Methods A retrospective cross-sectional descriptive observational retrospective study was conducted from a sample of patients from administrative databases of the National University Hospital (HUN) in 2021. Socioeconomic and clinical data of patients with obesity were obtained and baseline adherence to the evidence-based clinical standard for diagnosis, treatment and follow-up of patients with obesity at the National University Hospital was determined by calculating a global compliance index (GCI) based on 7 indicators that allow evaluation of the checkpoints defined in the ECBE. In addition, a cost analysis of the services used by these patients was performed. Results A sample size of 118 patients with ICD-10 diagnosis of obesity was calculated in the database of the University Hospital of the year 2021 attended in outpatient consultation, however, their diagnosis was only confirmed in 98 patients when reviewing their medical records, being these patients the ones included in the statistical analysis. 69.39% (95% CI: 58.16% - 76.53%) of the patients fulfilled the first indicator related to the assessment by the Endocrinology service of all patients with a diagnosis of obesity. 61.22% (95% CI: 50% - 69.39%) complied with the second indicator related to the recording of height, weight and abdominal perimeter of the patients diagnosed with this pathology. The third indicator related to the classification of obesity through the request and/or recording of paraclinical tests of all patients with obesity was met by 38.78% (95% CI: 26.85% - 46.94%). The fourth indicator corresponding to the evaluation of symptoms associated with obesity in all patients diagnosed with obesity was met in 17.35% (95% CI: 9.18% - 24.49%). The fifth indicator, which was related to the interdisciplinary assessment by endocrinology, sports medicine, nutrition and psychology of all patients with obesity, was met in 22.45% (95% CI: 14.29% - 30.61%). The sixth indicator corresponding to assessment and/or referral for bariatric surgery of all patients with BMI greater than or equal to 40 was met in 14.29% (95% CI: 0% - 44.44%). The seventh and last indicator related to pharmacological treatment in patients with BMI greater than or equal to 30 was met in 36.73% (95% CI: 25.51% - 44.9%). Finally, an overall ECBE compliance rate of 40.35% (95% CI: 34.91% - 45.47%) was found. On average the care of a patient with a diagnosis of obesity during the year 2021 was 173,318.5 Colombian pesos. Conclusion The aim of the study was to evaluate the baseline status of obese patient care in HUN in order to follow up the implementation of the obesity ECBE recommendations. A GCR of 40.35% (95% CI: 34.91% - 45.47%) was found during the period evaluated prior to the implementation of the ECBE. Therefore, strategies are required by HUN to ensure greater adherence to the recommendations of this ECBE and to offer comprehensive care to obese patients. Future studies will reflect the clinical and economic impact of the data obtained in this study.Incluye anexosEspecialidades MédicasEspecialista en EndocrinologíaSe realizó un estudio observacional descriptivo retrospectivo de corte transversal a partir de una muestra de pacientes de bases de datos administrativas del Hospital Universitario Nacional (HUN) del año 2021. Se obtuvieron datos socioeconómicos y clínicos de los pacientes con obesidad y se determinó la adherencia basal al Estándar clínico basado en la evidencia para diagnóstico, tratamiento y seguimiento del paciente con obesidad en el Hospital Universitario Nacional, mediante el cálculo de un índice global de cumplimiento (IGC) que se basó en 7 indicadores que permiten evaluar los puntos de control definidos en dicho ECBE. Además, se realizó un análisis de costos de los servicios utilizados por estos paciente

    Seudohipoparatiroidismo: enfermedad huérfana en endocrinología. Reporte de un caso

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    Abstract Introduction: Pseudohypoparathyroidism (PHP) is a heterogeneous group of rare endocrine disorders characterized by resistance to the parathyroid hormone. There are few reports on PHP in Colombia, so the publication of the present case contributes to increase the interest in its research in the clinical setting.   Case presentation: An 18-year-old male with a history of hypothyroidism diagnosed at 4 months of age, stunted growth, delayed puberty, obesity, brachydactyly, pathologic fractures, femoral osteochondroma, insomnia, paresthesia, and chronic constipation was referred to the endocrinology service of a tertiary care center in Bogotá (Colombia) after being hospitalized following a seizure episode. On admission, laboratory tests revealed hypocalcemia, hyperphosphatemia, 25-hydroxy vitamin D in the range of insufficiency and elevated PTH. Imaging studies showed heterotopic ossifications and calcifications of the basal ganglia. A genetic study confirmed the diagnosis of PHP1A, so treatment was started with calcium, cholecalciferol and phosphorus chelators, leading to a satisfactory course. Both the patient and his first-degree relatives received genetic counseling and interdisciplinary assessment.   Conclusion: Although PHP type 1A is an unrecognized complex genetic disorder, it has a critical clinical importance within the differential diagnoses of hypocalcemia. Without prompt diagnosis and treatment, patients may experience serious and potentially fatal metabolic consequences.Resumen Introducción. El seudohipoparatiroidismo (SPT) es un trastorno genético poco frecuente que se caracteriza por la resistencia a la hormona paratiroidea (PTH). En Colombia existen pocos reportes sobre esta enfermedad, por lo que la publicación del presente caso contribuye a aumentar el interés en su búsqueda en el ámbito clínico. Presentación del caso. Hombre de 18 años con antecedente de hipotiroidismo (diagnosticado a los 4 meses de nacido), retraso del crecimiento, desarrollo puberal tardío, obesidad, braquidactilia, fracturas patológicas, osteocondroma femoral, insomnio, parestesias y estreñimiento crónico, quien asistió al servicio de endocrinología de un hospital de tercer nivel de Bogotá (Colombia) remitido luego de haber estado hospitalizado por un episodio convulsivo. En dicha hospitalización los laboratorios evidenciaron hipocalcemia, hiperfosfatemia y 25-OH vitamina D en rango de insuficiencia con niveles elevados de PTH, y los estudios imagenológicos demostraron osificaciones heterotópicas y calcificaciones de ganglios basales del cerebro. Al paciente se le realizó un estudio genético que confirmó el diagnóstico de SPT1A, por lo que se le inició manejo con suplencia de calcio, colecalciferol y quelantes de fósforo, con lo cual evolucionó satisfactoriamente. Tanto el paciente como sus familiares de primer grado recibieron asesoramiento y valoración interdisciplinaria. Conclusiones. El SPT1A es un trastorno genético complejo poco conocido pero de alta importancia clínica dentro de los diagnósticos diferenciales de hipocalcemia que debe considerarse ya que sin el diagnóstico y tratamiento oportunos, los pacientes pueden presentar consecuencias metabólicas graves y potencialmente fatales

    A longitudinal study of free leptin index in pre-eclamptic pregnancies

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    The ratio between circulating levels of leptin and soluble leptin receptor (sOB-R), the free leptin index (FLI), is used as a marker of leptin resistance. Therefore, the aim of our study was to investigate the FLI in mild pre-eclamptic pregnancies in a nested case-control study within a prospective observational study. Circulating levels of leptin and sOB-R levels rise significantly during pregnancy in healthy (p 0.05), while it increases in pre-eclamptic pregnancies (p < 0.05). Indeed, FLI was significantly higher at second and third trimesters of pregnancy in pre-eclamptic compared to healthy pregnancies (p < 0.05). In addition, FLI was significantly higher in the luteal phase compared with the follicular phase of the menstrual cycle in eumenorrheic women (p < 0.05). Receiver operating characteristic (ROC) curve analysis revealed the ability of leptin (AUC = 0.72) and FLI (AUC = 0.67) as a reliable predictor for mild pre-eclampsia during the second trimester of pregnancy. In conclusion, our findings show that FLI were significantly increased in mild pre-eclamptic pregnancies and allowed us to hypothesize that this rise might alter leptin bioavailability and bioactivity which might lead to the sympathetic hyperactivity and the hypertensive disorders during pregnancy.This study was supported by government grants to the Universidad Nacional de Colombia (DIEB) and School of Medicine (código Hermes: 41439) and Ministerio de Ciencia, Tecnología e Innovación (Minciencias) (CD: 202010012913-2019-INV-Colciencias). Additionally, this work was supported by grants from FEDER/Ministerio de Ciencia, Innovación y Universidades-Agencia Estatal de Investigación (CD: BFU2017-87721; RN: RTI2018-099413-B-I00); Xunta de Galicia (RN: 2021-CP085 and 2020-PG0157)

    Presentation_1_Surrogate indices of insulin resistance using the Matsuda index as reference in adult men—a computational approach.pdf

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    BackgroundOverweight and obesity, high blood pressure, hyperglycemia, hyperlipidemia, and insulin resistance (IR) are strongly associated with non-communicable diseases (NCDs), including type 2 diabetes, cardiovascular disease, stroke, and cancer. Different surrogate indices of IR are derived and validated with the euglycemic–hyperinsulinemic clamp (EHC) test. Thus, using a computational approach to predict IR with Matsuda index as reference, this study aimed to determine the optimal cutoff value and diagnosis accuracy for surrogate indices in non-diabetic young adult men.MethodsA cross-sectional descriptive study was carried out with 93 young men (ages 18–31). Serum levels of glucose and insulin were analyzed in the fasting state and during an oral glucose tolerance test (OGTT). Additionally, clinical, biochemical, hormonal, and anthropometric characteristics and body composition (DEXA) were determined. The computational approach to evaluate the IR diagnostic accuracy and cutoff value using difference parameters was examined, as well as other statistical tools to make the output robust.ResultsThe highest sensitivity and specificity at the optimal cutoff value, respectively, were established for the Homeostasis model assessment of insulin resistance index (HOMA-IR) (0.91; 0.98; 3.40), the Quantitative insulin sensitivity check index (QUICKI) (0.98; 0.96; 0.33), the triglyceride-glucose (TyG)-waist circumference index (TyG-WC) (1.00; 1.00; 427.77), the TyG-body mass index (TyG-BMI) (1.00; 1.00; 132.44), TyG-waist-to-height ratio (TyG-WHtR) (0.98; 1.00; 2.48), waist-to-height ratio (WHtR) (1.00; 1.00; 0.53), waist circumference (WC) (1.00; 1.00; 92.63), body mass index (BMI) (1.00; 1.00; 28.69), total body fat percentage (TFM) (%) (1.00; 1.00; 31.07), android fat (AF) (%) (1.00; 0.98; 40.33), lipid accumulation product (LAP) (0.84; 1.00; 45.49), leptin (0.91; 1.00; 16.08), leptin/adiponectin ratio (LAR) (0.84; 1.00; 1.17), and fasting insulin (0.91; 0.98; 16.01).ConclusionsThe computational approach was used to determine the diagnosis accuracy and the optimal cutoff value for IR to be used in preventive healthcare.</p
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