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Resumen Introducción: La adherencia al tratamiento de la falla cardiaca en la vida real es subóptima. Se desconoce la adherencia a las recomendaciones del uso de sacubitril/valsartán en Colombia. Objetivo: Evaluar la frecuencia de uso, la distribución geográfica y las características demográficas de los pacientes a quienes se les formuló sacubitril/valsartán en 2019-2020, utilizando los datos del Sistema Integrado de Información de Protección Social (SISPRO). Materiales y método: Estudio descriptivo de corte transversal, en el que se extrajo la información relativa a la distribución de la prescripción del medicamento por departamento, género, quinquenio de edad y los códigos CIE-10 con los cuales se indicó. Resultados: Entre los años 2019 y 2020, se prescribieron 23.026 pacientes con sacubitril/valsartán en Colombia, de los cuales el 63.86% fueron hombres. El 92% de las prescripciones se hicieron a pacientes mayores de 50 años. Las regiones del país con mayor frecuencia de prescripción fueron Bogotá, Sucre y Santander. Conclusiones: Con base en la prevalencia estimada de falla cardiaca (2 a 3%), la frecuencia de formulación de sacubitril/valsartán en Colombia es menor a la esperada. Las regiones rurales del país son las que presentan el menor uso, lo que sugiere barreras de acceso que deben ser exploradas.

Abstract Introduction: Real-life adherence to the management of heart failure is suboptimal. Adherence to the recommendations for the use of sacubitril/valsartan in Colombia is unknown. Objective: To assess the frequency of use, geographic distribution, and demographic characteristics of patients who were prescribed sacubitril/valsartan in 2019-2020, using data from the "Sistema Integrado de Información de Protección Social" (SISPRO). Materials and method: This is a descriptive cross-sectional study. Information was extracted on the prescription distribution by department, gender, five-year age groups and the ICD-10 codes with which the medication was prescribed. Results: Between 2019 and 2020, 23,026 patients in Colombia were prescribed sacubitril/valsartan; 63.86% of the patients were men. Ninety-two percent of the prescriptions were for patients over the age of 50. The regions of the country with the highest prescription frequency were Bogotá, Sucre and Santander. Conclusions: Taking into account the estimated prevalence of heart failure (2-3%), the frequency with which sacubitril/valsartan is prescribed in Colombia is lower than expected. The rural regions of the country have the lowest use, which suggests access barriers that should be explored.

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BACKGROUND: Cardiovascular disease (CVD) represents the primary cause of death and disability globally, with elevated cholesterol as one of the leading risk factors for CVD. We describe the clinical characteristics, treatment patterns, and effectiveness of evolocumab in treating hyperlipidemia. METHODS: Observational study conducted through a chart review of patients with hyperlipidemia receiving evolocumab as part of clinical management in Colombia. RESULTS: This study included 115 patients treated with evolocumab. A total of 101 patients (87.8%) had a history of CVD, 13 (11.3%) familial hypercholesterolemia (FH), and 23 (20%) type 2 diabetes. Thirty-nine patients reported intolerance to any statin (33.9%). The median value of LDL-C before initiation of evolocumab was 147mg/dL (IQR: 122.5-183.7mg/dL). Within the first 3 months of treatment, LDL-C value dropped to a median value of 53mg/dL (IQR: 34.0-95.5mg/dL), showing a reduction of 63.9%. The median LDL-C values remained below 45mg/dL until the end of follow-up. Among the patients with available data, up to 61% achieved an LDL-C level below 55mg/dL at the 10-12-month follow-up. A total of 72% of patients were persistent with treatment. Safety results showed a low frequency of hospitalizations (≤2%) and treatment-emergent adverse drug reactions (5.2%). No serious adverse events were reported. CONCLUSIONS: Evolocumab was associated with reductions in LDL-C levels, with a relative decrease of 63.9% within the first 3 months of treatment. Low rates of interruptions due to adverse events and adequate medication persistence was reported.

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Resumen Objetivo: el síndrome coronario agudo es una importante causa de morbimortalidad en Colombia, con una alta carga en calidad de vida, muertes, impacto social y costos para el sistema. El control subóptimo de las dislipidemias tiene múltiples causas, entre ellas el uso inadecuado de las estatinas, la inercia terapéutica, la baja difusión y la adopción de las guías y protocolos de manejo, adicional a las barreras de acceso a la atención y a los medicamentos, y la falta de trazabilidad en la atención a partir del evento isquémico agudo. El proyecto "Ruta de atención y manejo de los lípidos en el paciente con síndrome coronario agudo" busca identificar las brechas en la atención clínica y el manejo de la dislipidemia en los pacientes con síndrome coronario agudo en Colombia, y plantear soluciones para cerrarlas. Materiales y método: se realizaron 178 encuestas a profesionales médicos en instituciones de todo el país, para conocer las pautas de manejo de los pacientes con dislipidemia en el paciente con síndrome coronario agudo. Un panel de 17 expertos analizó los resultados y definió las brechas entre la práctica clínica, la evidencia disponible y el manejo recomendado, y planteó recomendaciones para cerrarlas. Resultados y Conclusiones: este artículo muestra las principales brechas detectadas en el manejo de la dislipidemia en pacientes con síndrome coronario agudo en Colombia, y emite recomendaciones de manejo de la dislipidemia, coherentes con las necesidades y características del Sistema de Salud colombiano.

Abstract Objective: acute coronary syndrome (ACS) is an important cause of morbidity and mortality in Colombia, imposing a heavy burden in terms of quality of life, deaths, social impact, and costs to the system. Suboptimal control of dyslipidemia, associated with inadequate statin use, therapeutic inertia, and low rate of dissemination and adoption of the management protocols and guidelines are clinical and healthcare-related factors that contribute to this situation. This is compounded by barriers that hinder access to care and medications, and the lack of care traceability after the acute ischemic event. The "Care Pathway and lipid management in patients with Acute Coronary Syndrome" project seeks to identify gaps in clinical care and the management of dyslipidemia in patients with acute coronary syndrome in Colombia and propose solutions to bridge those gaps. Materials and method: to gain insights into the management of dyslipidemia in patients with ACS, 178 surveys were sent to medical professionals working in different institutions throughout the country. A panel of 17 experts analyzed the results and identified gaps in terms of clinical practice, available evidence, recommended management, and proposed recommendations to bridge those gaps. Results and conclusions: this paper describes the main gaps related to the management of dyslipidemia in patients with ACS in Colombia and offers recommendations by the needs and characteristics of the Colombian Health System.

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INTRODUCTION: Although patients with systemic lupus erythematosus (SLE) may benefit from health-care information in social media (SoMe), they may also be prone to misleading information. An assessment of the reliability, comprehensiveness, and quality of information uploaded to SoMe for Spanish-speaking patients with SLE is lacking. METHODS: This analytical observational study evaluates the videos uploaded to YouTube® in Spanish about SLE. Information about video length, engagement (i.e., views and likes), time on the internet, popularity index, and source was retrieved, and an evaluation on reliability, comprehensiveness, and quality was performed using standardized scores. RESULTS: One hundred eighty-six videos were included in the analysis. Most videos were considered as useful (87%) or useful patient opinion (8.1%), whereas only 2.2% were considered misleading and 2.7% as misleading patient opinion. The number of views (Median 7207 vs 113,877, p = .012), popularity index (Median 13.8 vs 168.7, p < .001), number of likes (Median 155 vs 3400, p < .001), and number of dislikes (Median 3 vs 138, p = .004) were higher for misleading videos. The videos uploaded by independent users had a higher engagement than those from government or news agencies, professional organizations or academic channels. Misleading videos and those uploaded by independent users had lower rates of reliability, comprehensiveness and quality (p < .001). CONCLUSIONS: Most of the information shown in YouTube® videos on SLE tends to be useful. However, audience engagement parameters are larger for misleading videos. Exploring the qualitative features of the most popular videos is necessary to establish what features are more engaging for the audiences and to improve the content and popularity of reliable videos on chronic diseases.

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The incidence of human cervix adenocarcinoma (CC) caused by papillomavirus genome integration into the host chromosome is the third most common cancer among women. Bacterial cyclodipeptides (CDPs) exert cytotoxic effects in human cervical cancer HeLa cells, primarily by blocking the PI3K/Akt/mTOR pathway, but downstream responses comprising gene expression remain unstudied. Seeking to understand the cytotoxic and anti-proliferative effects of CDPs in HeLa cells, a global RNA-Seq analysis was performed. This strategy permitted the identification of 151 differentially expressed genes (DEGs), which were either up- or down-regulated in response to CDPs exposure. Database analysis, including Gene Ontology (COG), and the Kyoto Encyclopedia of Genes and Genomes (KEGG), revealed differential gene expression on cancer transduction signals, and metabolic pathways, for which, expression profiles were modified by the CDPs exposure. Bioinformatics confirmed the impact of CDPs in the differential expression of genes from signal transduction pathways such as PI3K-Akt, mTOR, FoxO, Wnt, MAPK, P53, TGF-ß, Notch, apoptosis, EMT, and CSC. Additionally, the CDPs exposure modified the expression of cancer-related transcription factors involved in the regulation of processes such as epigenetics, DNA splicing, and damage response. Interestingly, transcriptomic analysis revealed the participation of genes of the mevalonate and cholesterol biosynthesis pathways; in agreement with this observation, total cholesterol diminished, confirming the blockage of the cholesterol synthesis by the exposure of HeLa cells to CDPs. Interestingly, the expression of some genes of the mevalonate and cholesterol synthesis such as HMGS1, HMGCR, IDI1, SQLE, MSMO1, SREBF1, and SOAT1 was up-regulated by CDPs exposure. Accordingly, metabolites of the mevalonate pathway were accumulated in cultures treated with CDPs. This finding further suggests that the metabolism of cholesterol is crucial for the occurrence of CC, and the blockade of the sterol synthesis as an anti-proliferative mechanism of the bacterial CDPs, represents a reasonable chemotherapeutic drug target to explore. Our transcriptomic study supports the anti-neoplastic effects of bacterial CDPs in HeLa cells shown previously, providing new insights into the transduction signals, transcription factors and metabolic pathways, such as mevalonate and cholesterol that are impacted by the CDPs and highlights its potential as anti-neoplastic drugs.

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OBJECTIVE: To determine the performance of each of the available pediatric index of mortality (PIM) scores, by assessing the capability for discrimination and calibration in patients admitted to a pediatric intensive care unit in Bogotá. DESIGN AND SETTING: We designed a retrospective, observational cohort study, which included all patients aged between a month and 17 years and 364 days, admitted to the pediatric intensive care unit of a high complexity university hospital between April 1, 2016 and December 31, 2018. We analyzed the standardized mortality ratio, discrimination, calibration, and net reclassification index (NRI) for each model. RESULTS: A total of 722 patients were included, the mortality rate was 3.74%, and for PIM-3, the ratio between expected and observed mortality was 0.66 [confidence interval (CI) 0.40-1.05] for PIM-2 and 1.00 (CI 0.59-1.68) for PIM-3. The Hosmer-Lemeshow (HL) test suggests inadequate calibration for PIM-2 (HL = 13.18, p = 0.11) and adequate calibration for PIM-3 (HL = 28.08, p < 0.01). The area under the diagnostic performance curves for PIM-2 and PIM-3 were 0.87 (95% CI 0.80-0.94) and 0.89 (95% CI 0.82-0.95), respectively. The NRI was -27.1%. PIM-3 classified survivors better than PIM-2, but inadequately classified nonsurvivors. CONCLUSION: Although both models show adequate discrimination ability, PIM-3 shows a better correlation between predicted risk score and observed mortality. Thus, it may be a useful tool for measuring the internal processes of intensive care units in Colombia and for making comparisons between groups of similar characteristics. HOW TO CITE THIS ARTICLE: Quiñónez-López D, Patino-Hernandez D, Zuluaga CA, García ÁA, Muñoz-Velandia OM. Comparison of Performance of the Pediatric Index of Mortality (PIM)-2 and PIM-3 Scores in the Pediatric Intensive Care Unit of a High Complexity Institution. Indian J Crit Care Med 2020;24(11):1095-1102.

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Reseña: El propósito de este estudio es evaluar la aplicación clínica e indicación de los criterios apropiados para la ecocardiografía de estrés de acuerdo a la Fundación del Colegio Americano de Cardiología/Sociedad Americana de Ecocardiografía, en la práctica diaria de un centro cardiovascular de referencia. Materiales y métodos: Fueron incluidos los estudios consecutivos realizados entre enero de 2012 y julio de 2013. Los datos fueron revisados, analizados y clasificados por cuatro cardiólogos expertos teniendo en cuenta: la demografía, la especialidad que refiere, la indicación primaria y su clasificación final como apropiados, inapropiados o inciertos. Resultados: Un total de 1.556 estudios fueron incluidos inicialmente, 450 fueron excluidos por estar relacionados con programas de trasplante de órgano sólido y en 170 no se pudo determinar una indicación clara para el estudio. Los 936 estudios restantes (85%) fueron analizados para la determinación de criterios apropiados. De estos 679 (73%) tenían una indicación apropiada, 70 (7%) eran inciertos y 187 (20%) fueron inapropiados. Cuatrocientos veintiocho (46%) fueron referidos por medicina interna, 375 (40%) por cardiología, 51 (5%) por anestesiología y 82 (10%) por medicina general y otras especialidades. Un total de 159 (17%) estudios arrojaron un resultado anormal, todos ellos estaban apropiadamente indicados, ninguno fue anormal en los inapropiadamente indicados. Conclusiones: La revisión de la aplicación de los criterios apropiados para la ecocardiografía de estrés no solo permite una implementación clínica efectiva en un centro cardiovascular de referencia, sino que también estratifica razonablemente la posibilidad de tener un resultado anormal en aquellos con una indicación apropiada. Sin embargo, esto debería validarse extensamente en una cohorte multicéntrica.

Background: The purpose of this study is to evaluate the clinical application and assessment of appropriate criteria for the indication of stress echocardiograms according to the American College of Cardiology Foundation/American Society of Echocardiography in daily clinical practice at a cardiovascular reference center. Materials and methods: All consecutive studies carried out between January 2012 and July 2013 were included. The data was reviewed, analyzed and classified by four expert cardiologists regarding issues such as demography, referred specialty, primary indication and its final classification as appropriate, inappropriate or uncertain. Results: A total of 1,556 studies were initially included, 450 which were excluded as being related to program of solid organ transplantation and 170 as no clear indication of the study could be determined. Therefore, the remaining 936 were analyzed for the evaluation of appropriateness criteria. Of these 679 (73%) had appropriate indication, 70 (7%) were uncertain and 187 (20%) inappropriate. 428 (46%) were referred by internal medicine, 375 (40%) by cardiology, 51 (5%) by anesthesiology and 82 (10%) by general medicine and other specialties. A total of 159 (17%) studies rendered an abnormal result, all of them which were properly indicated, and no one was abnormal in the inappropriately indicated. Conclusions: Reviewing appropriateness criteria for SE not only allows an effective characterization and clinical performance in a single center, but also reasonably stratifies the possibility of having an abnormal result in those with an appropriate indication. However, this should be validated extensively in a multicenter cohort.

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Antecedentes: Las guías internacionales recientes proponen el uso de estatinas como piedra angular del manejo de la dislipidemia en adultos. Sin embargo, no se ha definido con claridad el tratamiento de los pacientes con intolerancia o efectos adversos asociados con estas. Las resinas secuestradoras de ácidos biliares son una alternativa interesante, pese a que la evidencia que avala su uso no ha sido evaluada cuidadosamente. Métodos: Se realizó una búsqueda de la literatura en MEDLINE, Embase y en la Biblioteca Cochrane hasta junio de 2013, acerca de artículos publicados en inglés y español, identificando experimentos clínicos aleatorizados y estudios de cohortes que evaluaran el impacto de las resinas secuestradoras de ácidos biliares en mortalidad, eventos cardiovasculares, niveles de lípidos séricos y efectos adversos. Se presenta la información de forma descriptiva. Resultados: Se identificaron cuatro experimentos clínicos aleatorizados y un estudio de cohortes, que incluían 6.833 pacientes. Solo uno de los estudios evaluó el impacto en la mortalidad cardiovascular, evidenciando que no hay diferencia estadísticamente significativa en comparación con placebo (RR de 0,76; IC 95% 0,5:1,15), aunque se observó una reducción del 16% en la incidencia de infarto agudo de miocardio (RR 0,84; IC 95% 0,67:1,00). Tres estudios evaluaron cambios en las fracciones lipídicas, los cuales mostraron disminución moderada en los niveles de colesterol LDL, sin percibir diferencias clínicamente significativas en los niveles de colesterol HDL y triglicéridos. Conclusión: La evidencia que respalda el uso de resinas secuestradoras de ácidos biliares es limitada y no avala su empleo como terapia de primera línea en pacientes con dislipidemia; no obstante, son una alternativa en pacientes con efectos adversos o intolerancia al manejo con estatinas.

Background: Recent international guidelines have proposed statins as the corner stone of dyslipidemia management in adults. However it is not clear if they are best option for patients with statin related intolerance or what their adverse effects are. The bile acid sequestrants are an interesting alternative, however its evidence has not been carefully evaluated. Methods: A search was conducted on MEDLINE, Embase and Cochrane library databases for articles published up to June 2013, limited to Spanish and English language. Randomized clinical trials (RCT) and cohort studies evaluating the impact of bile acid sequestrants on mortality, cardiovascular outcomes, seric lipids and adverse effects were selected. Information was presented in a descriptive way. Results: Four RCT and one cohort study with aggregate data on 6833 people were included. Just one study evaluated cardiovascular mortality showing no statistically significant difference when compared with placebo, (RR 0.76; 95% CI 0.5:1.15), however there was a 16% reduction on acute myocardial infarction incidence. (RR 0.84; 95% IC 0.67: 1.00). Three studies evaluated seric lipids changes showing a moderate reduction in LDL levels without clinical significant differences on HDL and triglyceride levels. Conclusions: The evidence supporting bile acid sequestrants use is lacking and not conclusive to recommend its use as first-line therapy in dyslipidemic patients; however, these are an alternative option for patients with statin-related intolerance or adverse effects.

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Objetivo: El tratamiento de la dislipidemia debe ser acorde con el riesgo individual de cada paciente. Existen múltiples ecuaciones de predicción de riesgo cardiovascular, sin embargo, es necesario determinar cuál es la más adecuada para ser utilizada en la población colombiana. Métodos: La alianza CINETS, comisionada por el Ministerio de la Protección Social y Colciencias, revisó la evidencia disponible con respecto a qué métodos de evaluación de riesgo cardiovascular son válidos en la población colombiana. Se generaron recomendaciones utilizando la metodología GRADE. Población: Población adulta con diagnóstico de dislipidemia o en riesgo de desarrollarla. Recomendaciones: En la población de prevención primaria o sin enfermedad cardiovascular clínicamente manifiesta se recomienda utilizar la escala de Framingham recalibrada para Colombia para clasificar el riesgo (Recomendación fuerte a favor de la intervención). Existen personas con condiciones que por sí mismas implican un riesgo mayor y ameritan manejo farmacológico directo.

Aim: The treatment of dyslipidemia must be related with patient's individual risk. There are multiple functions for predicting cardiovascular risk; however, it is necessary to determine the most appropriate for being used in Colombian population. Methods: The CINETS alliance, endorsed by the Colombian Social Protection Ministry and Colciencias, reviewed the evidence available about the validity of cardiovascular risk evaluation methods in Colombian Population. Recommendations were generated using GRADE methodology. Population: General adult population with or at risk of dyslipidemia. Recommendations In primary prevention population, or without clinically evident cardiovascular disease, Framingham risk function recalibrated for Colombia must be used to calculate cardiovascular risk (Strong recommendation). In patients with an especial condition increasing cardiovascular risk, direct pharmacologic treatment must be used.

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Objetivo: Evaluar el impacto sobre la incidencia y recurrencia de eventos cardiovasculares y cerebrovasculares (prevención primaria y secundaria), los niveles de las fracciones lipídicas y la incidencia de efectos secundarios en personas con hipercolesterolemia intolerantes al tratamiento con las estatinas. Métodos: Se elaboró una guía de práctica clínica siguiendo los lineamientos de la guía metodológica del Ministerio de Salud y Protección Social para recolectar de forma sistemática la evidencia científica y formular las recomendaciones utilizando la metodología GRADE. Población Población adulta, con diagnóstico de dislipidemia, o en riesgo de desarrollarla, intolerantes al manejo con las estatinas. Recomendaciones: Se formulan recomendaciones a favor del uso de diferentes medicamentos (los fibratos, la niacina, los ácidos omega 3, las resinas secuestradoras de ácidos biliares, el ezetimibe), según su efectividad hipolipemiante y reducción de eventos cardiovasculares, como propuesta adaptada al contexto social colombiano.

Objective To evaluate the impact on the incidence and recurrence of cardiovascular and cerebrovascular events (primary and secondary prevention), the levels of lipid fractions and the incidence of side effects in people with hypercholesterolemia intolerant to statin therapy. Methods: A clinical practice guideline was developed following the guidelines of the methodological guidance of the Ministry of Health and Social Protection to systematically collect the evidence and make recommendations using the GRADE methodology. Population: Adult population, diagnosed with dyslipidemia or at risk of developing, intolerant to management with statin drugs. Recommendations: Recommendations for the use of different medications (fibrates, niacin, omega 3 acids, bile acid binding resins, ezetimibe) are formulated according to their lipid-lowering effectiveness and reduction of cardiovascular events, a proposal adapted to the Colombian social context.

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Objetivo: Evaluar si la escala CRUSADE es aplicable en la comunidad colombiana. Métodos:Se realizó un estudio de validación externa dentro de una cohorte histórica, en el que se incluyeron pacientes hospitalizados entre los años 2006 y 2012 en el Hospital Universitario San Ignacio, en Bogotá, Colombia. Se tomaron historias clínicas de pacientes mayores de 18 años, que tuvieran asignado el diagnóstico de infarto agudo de miocardio sin supradesnivel del ST. Se comparó el número de eventos (sangrado) predichos y observados durante la hospitalización (calibración). Finalmente, se estimó la capacidad para separar sujetos de alto y bajo riesgo (discriminación). Resultados: Se incluyeron 252 pacientes. El número de eventos mayores fue 30 (11,9%) y el de eventos menores 23 (9,12%); 12 pacientes (7,46%) fallecieron. En el grupo de muy alto riesgo (más de 50 puntos de la escala), se reportó el mayor número de eventos (respecto a la población estudiada). Al evaluar la escala se evidenció una buena capacidad de calibración (X² p = 0,84); sin embargo, la discriminación no fue adecuada (área bajo la curva 0,6128 {IC 95% 0,46-0,76}). Conclusiones: Se encontraron pocos eventos, si bien los datos sugieren que la escala subestima levemente los riesgos. La escala tiene buena calibración, pero no posee capacidad de discriminación adecuada, hecho que probablemente obedece a que se obtuvo un pequeño número de eventos, con desviaciones estándar altas. Por tanto, se requieren estudios adicionales, con mayor poder estadístico.

Objective: To assess whether CRUSADE scale is applicable in the Colombian community. Methods: A study of external validation in a historical cohort, which included patients hospitalized between 2006 and 2012 in the Hospital Universitario San Ignacio in Bogota Colombia, was performed. Medical records of patients older than 18 years, who had been diagnosed as acute myocardial infarction without ST segment elevation, were included. The number of events (bleeding) predicted and observed during hospitalization (calibration) were compared. Finally, the ability to separate subjects at high and low risk (discrimination) was estimated. Results:252 patients were included. The number of major events was 30 (11.9%) and that of minor events 23 (9.12%); 12 patients (7.46%) died. In the group of very high risk (more than 50 points on the scale), the largest number of events (regarding the study population) was reported. At assessing the scale, a good calibration capacity was evidenced (X² p = .84); however, discrimination was not adequate (0.6128 AUC {95% CI 0.46 to 0.76}). Conclusions Few events were found, although the data suggest that the scale slightly underestimates the risks. The scale has good calibration, but lacks adequate discriminatory capacity, probably due to the fact that a small number of events with high standard deviations were obtained. Therefore, further studies with greater statistical power are required.

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Objetivo: determinar la relación de costo-efectividad relativa de las estatinas entre sí en pacientes adultos con dislipidemia con predominio de hipercolesterolemia para la prevención de eventos cardiocerebrovasculares, en Colombia, desde la perspectiva del sistema de salud colombiano. Métodos: se construyó un modelo de Markov con años de vida ajustados por calidad (AVAC) ganados como desenlace principal, tasa de descuento de 3% tanto para costos como desenlaces, y cinco años de horizonte temporal. Probabilidades y costos se extrajeron de la literatura y de fuentes oficiales del país, respectivamente. El umbral de costo-efectividad fue tres veces el PIB per cápita de 2012. Se realizaron análisis de sensibilidad univariados, probabilísticos, umbral y curva de aceptabilidad. Resultados: el costo promedio del tratamiento con estatinas para un paciente con dislipidemia en cinco años es de $3 472 733. La ganancia en AVAC en rosuvastatina fue mayor con respecto a las otras estatinas; sin embargo, es la estrategia más costosa. La atorvastatina, que resultó segunda, es la más costo-efectiva. Conclusión: la intervención más costo-efectiva para pacientes con dislipidemia con predominio de hipercolesterolemia e indicación de manejo farmacológico con terapia moderada y alta con estatinas en Colombia es la atorvastatina. (Acta Med Colomb 2015; 40: 118-124).

Objective: to determine the relative cost-effectiveness among statins in adult patients with dyslipidemia with predominant hypercholesterolemia to prevent cardiocerebrovascular events in Colombia, from the perspective of Colombian health system. Methods: a Markov model with quality-adjusted life years (QALY) gained as the main outcome, discount rate of 3% for both costs and outcomes, and five-year time horizon was built. Probabilities and costs were extracted from the literature and from official sources in the country, respectively. The threshold for cost-effectiveness was three times the 2012 per capita GDP. Univariate probabilistic, sensitivity analysis, threshold and acceptability curve were performed. Results: the average cost of statin therapy for a patient with dyslipidemia in five years is $3 472 733. The QALY gain was higher in rosuvastatin compared to other statins, however, it is the most costly strategy. Atorvastatin, which was second, is the most cost-effective. Conclusion: the most cost-effective intervention for patients with dyslipidemia with predominant hypercholesterolemia and indication of pharmacological management with moderate and high statin therapy in Colombia is atorvastatin. (Acta Med Colomb 2015; 40: 118-124).

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Objetivo: Evaluar el impacto del tratamiento con estatinas sobre la incidencia y la recurrencia de los eventos cardiovasculares y los cerebrovasculares (prevención primaria y secundaria), los niveles de las fracciones lipídicas y la incidencia de efectos secundarios (el cáncer y la diabetes mellitus) en personas con hipercolesterolemia. Métodos: Se elaboró una guía de práctica clínica siguiendo los lineamientos de la guía metodológica del Ministerio de Salud y Protección Social para recolectar de forma sistemática la evidencia científica y formular las recomendaciones utilizando la metodología GRADE. Resultados: Se evidenció un efecto benéfico del tratamiento farmacológico con estatinas tanto en población de prevención primaria como en prevención secundaria, logrando reducciones clínica y estadísticamente significativas en la mortalidad y en los eventos cardiovasculares y cerebrovasculares. Adicionalmente, el tratamiento intensivo con estatinas mostró mayor reducción en los eventos cardiovasculares y cerebrovasculares ateroscleróticos al compararlo con el tratamiento de intensidad moderada. No se encontraron diferencias significativas en el riesgo de desarrollar cáncer al comparar estatinas frente a placebo pero sí se encontró un incremento de nueve por ciento en el riesgo de presentar diabetes mellitus asociado al tratamiento con estatinas. Conclusiones: Se formulan recomendaciones a favor del uso de estatinas como primera línea de tratamiento de hipercolesterolemia, y se establecen criterios para definir la intensidad de la terapia (alta o moderada respuesta) según el riesgo cardiovascular a 10 años, el nivel de colesterol LDL (cLDL), la edad y los antecedentes personales y los familiares.

Objective: To evaluate the impact of statin therapy on the incidence and recurrence of cardiovascular and cerebrovascular events (primary and secondary prevention), the levels of lipid fractions and the incidence of side effects (cancer and diabetes mellitus) in people with hypercholesterolemia. Methods: A clinical practice guideline was developed following the guidelines of the methodological guidance of the Ministry of Health and Social Protection to systematically collect the evidence and make recommendations using the GRADE methodology. Results: A beneficial effect of pharmacological treatment with statins in both primary prevention and secondary prevention was evident, achieving clinically and statistically significant reductions in mortality and cardiovascular and cerebrovascular events. Additionally, intensive statin therapy showed greater reduction in atherosclerotic cardiovascular and cerebrovascular events as compared to the treatment of moderate intensity. No significant differences in the risk of developing cancer by comparing statins versus placebo were found, but a 9% increase in the risk of diabetes mellitus associated with statin therapy was found. Conclusions: Recommendations for the use of statins as first-line treatment of hypercholesterolemia are formulated, and criteria to define the intensity of therapy (high or moderate response) as cardiovascular risk at 10 years, level of LDL (LDLc), age and personal and family history were established.

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Objetivo: estimar la prevalencia de fibrilación auricular en una muestra de electrocardiogramas de rutina en pacientes mayores de 60 años en un hospital universitario. Métodos: se seleccionó una muestra aleatoria estratificada por decenios de edad en la base de datos de electrocardiogramas prequirúrgicos, de pacientes hospitalizados por cualquier causa y de aquellos que consultan por urgencias en un hospital de alta complejidad de la ciudad de Bogotá. Cada electrocardiograma fue revisado exclusivamente para confirmar o descartar fibrilación auricular. Resultados: de un total de 31.716 registros se seleccionó una muestra de 2.308 registros de electrocardiogramas, de los cuales 110 (4,8%) mostraban fibrilación auricular. La distribución según los grupos de edad fue la siguiente: 60-69 años: 1,8% (16 de 848), 70-79 años: 4,6% (38 de 821), 80-89 años: 8,9% (43 de 521), y mayores de 90 años: 11,0% (13 de 118). La prevalencia ajustada para la población colombiana mayor de 60 años es de 3,6% (IC 95%: 3,4-3,8). Conclusiones: aunque la muestra corresponde a una sola ciudad colombiana y tiene potenciales sesgos de selección, la prevalencia de fibrilación auricular en el país podría ser similar a la que se describe en el estudio Framingham.

Objective: to estimate the prevalence of atrial fibrillation in a sample of routine electrocardiograms in patients older than 60 years at a university hospital. Methods: a random sample stratified by decade of age in the database of preoperative electrocardiograms of patients hospitalized for any cause and of those who consult to the emergency department of a high complexity hospital of Bogotá. Each electrocardiogram was reviewed to confirm or discard atrial fibrillation. Results: of a total of 31,716 records, a sample of 2,308 electrocardiograms was selected of which 110 (4.8% ) showed atrial fibrillation. The distribution by age group was as follows: 60-69 years 1.8% (16 of 848), 70-79 years 4.6% (38 of 821), 80-89 years 8.9% (43 of 521), and over 90 years 11.0% (13 of 118). The adjusted prevalence for the Colombian population over 60 years is 3.6 % (95% CI: 3.4-3.8). Conclusions: although the sample corresponds to a single city in Colombia and has potential selection bias, the prevalence of atrial fibrillation in the country could be similar to to that described in the Framingham study.

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OBJECTIVE: To determine the incidence and related factors of perioperative mortality associated with radical nephrectomy in patients with renal tumours in a tertiary hospital. MATERIAL AND METHODS: We conducted a cross-sectional study that reviewed the medical records of patients undergoing radical nephrectomy between January 1, 2007 and December 31, 2011 in a tertiary university hospital (Cali, Colombia). We measured sociodemographic variables and factors that may be associated with perioperative mortality. The statistical analysis was performed using STATA. RESULTS: We analysed 57 patients who underwent radical nephrectomy, 54.4% of whom were male, whose ages ranged from 14 to 81 years. All tumours had a unilateral presentation; 96.5% of the tumours were solid renal lesions, and 3.5% were cystic lesions. The most frequent histological findings were clear cell (63.2%), papillary (8.7%) and chromophobe cell (5.2%) renal carcinoma. There were no complications in 27 (47.3%) of the patients. According to the Clavien-Dindo classification of surgical complications, 16 (28%) patients had minor (grades i and ii) complications and 9 (15.6%) had major (grades iii and iv) complications, with an overall perioperative mortality (grade v) of 8.7% (5 patients). CONCLUSIONS: The perioperative mortality at 30 days for patients with nonmetastatic renal carcinoma who underwent radical nephrectomy at a tertiary university hospital in Cali, Colombia, was 4.1% (2 patients).

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Los fenómenos de hipercoagulabilidad son comunes en los pacientes politraumatizados críticamente enfermos. Los principales factores de riesgo para esta complicación son la cirugía, las invasiones vasculares, la inmovilidad y los procesos inflamatorios. Los catéteres intravasculares proveen un acceso necesario para la administración de terapia intravenosa, toma de muestras sanguíneas y monitorización. Sin embargo, su uso se asocia frecuentemente con complicaciones locales y sistémicas serias incluyendo infecciones diseminadas, tromboflebitis séptica y endocarditis. En este contexto, debe sospecharse de tromboflebitis séptica de la vena cava superior en el paciente con bacteriemia persistente después de 72 horas de terapia antimicrobiana apropiada. La base del tratamiento incluye: remoción del foco infeccioso, administración temprana de antibióticos intravenosos y anticoagulación. Así mismo, debe considerarse el tratamiento quirúrgico en aquellos con evolución inadecuada.

Hypercoagulability phenomena are common in critically ill polytraumatized patients. The main risk factors for this complication are surgery, vascular invasions, immobility and inflammatory processes. Intravascular catheters provide a necessary access for the administration of intravenous therapy, blood sampling and monitoring. However, their use is frequently associated with serious local and systemic complications including disseminated infections, septic thrombophlebitis and endocarditis. In this context, septic thrombophlebitis of the superior vena cava should be suspected in patients with persistent bacteremia after 72 hours of appropriate antimicrobial therapy. The mainstay of treatment includes the removal of the source of infection, early administration of intravenous antibiotics and anticoagulation. Also, surgical treatment should be considered in those with inadequate clinical evolution.

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