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We present the case of a woman in her third decade of life, known to have difficult-to-control mixed headaches and polycystic ovary syndrome, under hormonal treatment. Without any other manifestation, the patient debuted with an acute coronary syndrome classified as unstable angina. Electrocardiogram showed anterior and lateral ST segment depression and ST elevation in aVR. Coronary computer tomography and coronary angiography showed evidence of significant obstruction of the left main coronary artery. The patient was diagnosed with systemic lupus erythematosus (SLE), and was classified as vasculitis secondary to SLE as an unusual initial manifestation.

Se presenta el caso de una mujer en la tercera década de la vida, con cefalea mixta de difícil control y síndrome de ovario poliquístico bajo tratamiento hormonal, sin ninguna otra manifestación, la cual debutó con un síndrome coronario agudo tipo angina inestable. El electrocardiograma mostró infradesnivel en cara anterior y lateral, así como supradesnivel del ST en aVR. La angiotomografia de coronarias y la coronariografía mostraron evidencia de obstrucción importante del tronco de la coronaria izquierda. Tras el abordaje se llegó al diagnóstico de vasculitis secundaria a lupus eritematoso sistémico como manifestación inicial poco habitual.

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Background: Acute coronary syndrome (ACS) is the most serious manifestation of coronary heart disease. The Infarction Code (according to its initialism in Spanish, CI: Código Infarto) program aims to improve the care of these patients. Objective: To describe the clinical presentation and outcomes of CI program in a coronary care unit (CCU). Material and methods: A database of a CCU with 5 years of consecutive records was analyzed. Patients diagnosed with ACS were included. The groups with acute myocardial infarction with and without ST-segment elevation were compared using Student's t, Mann-Whitney U and chi-squared tests. We calculated the relative risk (RR) and 95% confidence intervals (95% CI) of cardiovascular risk factors for mortality. Results: A total of 4678 subjects were analyzed, 78.7% men, mean age 63 years (± 10.7). 80.76% presented acute myocardial infarction with positive ST-segment elevation and fibrinolytic was granted in 60.8% of cases. Percutaneous coronary intervention was performed in 81.4% of patients, which was successful in 82.5% of events. Patients classified as CI presented mortality of 6.8% vs. 11.7%, p = 0.001. Invasive mechanical ventilation had an RR of 26.58 (95% CI: 20.61-34.3) and circulatory shock an RR of 20.86 (95% CI: 16.16-26.93). Conclusions: The CI program decreased mortality by 4.9%. Early fibrinolysis and successful coronary angiography are protective factors for mortality within CCU.

Introducción: el síndrome coronario agudo (SICA) es la manifestación más grave de la enfermedad coronaria. El programa Código Infarto (CI) tiene como objetivo mejorar la atención de estos pacientes. Objetivo: describir la presentación clínica y los resultados del programa CI de una unidad de cuidados coronarios (UCC). Material y métodos: se analizó una base de datos de una UCC con 5 años de registros consecutivos. Se incluyeron pacientes con diagnóstico de SICA. Se compararon los grupos con infarto agudo de miocardio con y sin elevación del segmento ST mediante las pruebas t de Student, U de Mann-Whitney y chi cuadrada. Se calculó el riesgo relativo (RR) y el intervalo de confianza del 95% (IC 95%) de los factores de riesgo cardiovascular para mortalidad. Resultados: se analizaron 4678 sujetos, 78.7% hombres, con media de edad de 63 años (± 10.7). El 80.76% presentó infarto agudo de miocardio con desnivel positivo del segmento ST y se otorgó fibrinolítico en el 60.8% de los casos. Se realizó intervencionismo coronario percutáneo en el 81.4% de los pacientes, el cual fue exitoso en el 82.5% de los eventos. Los pacientes catalogados como CI presentaron mortalidad del 6.8% frente a 11.7%, p = 0.001. La ventilación mecánica invasiva tuvo una RR de 26.58 (IC 95%: 20.61-34.3) y el choque circulatorio una RR de 20.86 (IC 95%: 16.16-26.93). Conclusiones: el programa CI disminuyó 4.9% la mortalidad. La fibrinólisis temprana y la angiografía coronaria exitosa son factores protectores para mortalidad dentro de la UCC.

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The diagnostic criteria, treatments at the time of admission, and drugs used in patients with acute coronary syndrome are well defined in countless guidelines. However, there is uncertainty about the measures to recommend during patient discharge planning. This document brings together the most recent evidence and the standardized and optimal treatment for patients at the time of discharge from hospitalization for an acute coronary syndrome, for comprehensive and safe care in the patient's transition between care from the acute event to the outpatient care, with the aim of optimizing the recovery of viable myocardium, guaranteeing the most appropriate secondary prevention, reducing the risk of a new coronary event and mortality, as well as the adequate reintegration of patients into daily life.

Los criterios diagnósticos, los tratamientos en el momento de la admisión y los fármacos utilizados en pacientes con síndrome coronario agudo están bien definidos en innumerables guías. Sin embargo, existe incertidumbre acerca de las medidas para recomendar durante la planificación del egreso de los pacientes. Este documento reúne las evidencias más recientes y el tratamiento estandarizado y óptimo para los pacientes al momento del egreso de una hospitalización por un síndrome coronario agudo, para un cuidado integral y seguro en la transición del paciente entre la atención del evento agudo y el cuidado ambulatorio, con el objetivo de optimizar la recuperación de miocardio viable, garantizar la prevención secundaria más adecuada, reducir el riesgo de un nuevo evento coronario y la mortalidad, así como la adecuada reinserción de los pacientes en la vida cotidiana.

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Introducción : La predicción del riesgo cardiovascular favorece la prevención de eventos cardiovasculares. Objetivo : Estimar el riesgo cardiovascular y determinar la condición periodontal de pacientes con síndrome coronario agudo. Método : Se realizó un estudio transversal en 60 sujetos admitidos en la Unidad de Cuidados Coronarios del Hospital Provincial Vladimir Ilich Lenin, con diagnóstico de síndrome coronario agudo, que a su vez cumplieron con los criterios de inclusión. Se tuvieron en cuenta los principios de ética médica, se empleó el índice Periodontal de Russell y se determinó el riesgo cardiovascular según las Tablas de Predicción de Riesgo Cardiovascular aprobadas para Cuba. Se evaluaron las variables incluidas en dichas tablas. Resultados : El infarto agudo de miocardio se presentó en el 58,3 por ciento. El 55,0 por ciento eran del sexo masculino, 35,0 por ciento se encontraban en el grupo de edad de 55 a 64 años. En relación con la condición periodontal, el 76,7 por ciento presentó periodontitis. Según los factores de riesgo explorados la adicción tabáquica estuvo presente en el 71,7 por ciento y la hipertensión arterial en el 65,0 por ciento de los sujetos. El 25,0 por ciento de los pacientes con riesgo cardiovascular bajo presentaba periodontitis. Conclusiones : Según las tablas de predicción de riesgo cardiovascular empleadas, más de la mitad de los pacientes con síndrome coronario agudo presentaron riesgo cardiovascular bajo o moderado, sin embargo, la mayoría de estos presentaban periodontitis(AU)

Introduction : Prediction of cardiovascular risk favors prevention of cardiovascular events. Objective : To estimate cardiovascular risk and determine the periodontal condition of patients with acute coronary syndrome. Methods : A cross-sectional study was carried out with 60 subjects admitted to the coronary care unit at Hospital General Docente Vladimir Ilich Lenin, with a diagnosis of acute coronary syndrome and, in turn, meeting with the inclusion criteria. The principles of medical ethics were taken into account, the Russell's Periodontal Index was used, and cardiovascular risk was determined according to the cardiovascular risk prediction tables approved for Cuba. The variables included in these tables were evaluated. Results : Acute myocardial infarction occurred in 58.3 percent of the patients. 55.0 percent were male, and 35.0 percent were in the age group 55-64 years. Regarding their periodontal condition, 76.7 percent presented periodontitis. According to the explored risk factors, tobacco addiction was present in 71.7 percent, while arterial hypertension was present in 65.0 percent of the subjects. 25.0 percent of the patients with low cardiovascular risk had periodontitis. Conclusions : According to the used cardiovascular risk prediction tables, more than half of the patients with acute coronary syndrome presented low or moderate cardiovascular risk; however, most of these had periodontitis(AU)

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Objective: to describe the clinical, imaging and laboratory characteristics of patients undergo ing coronary arteriography with a presumptive diagnosis of acute coronary syndrome between January 2017 and December 2019, as well as the frequencies of the types of infarction according to the universal definition. Methods: an observational, cross-sectional study of patients over the age of 18 undergoing coronary angiography at a university hospital in Bogotá. Statistical analysis was carried out using STATA software, calculating absolute frequencies, proportions, and measures of central tendency and dispersion, according to the behavior of the variables. Patients were classified according to the fourth universal definition of infarction, determining each respective frequency. Results: a total of 714 medical charts were analyzed, corresponding to 459 men and 255 women, with high blood pressure, dyslipidemia, obesity, diabetes and prior coronary disease being the most common cardiovascular risk factors. Altogether, 68.9% of the patients had an electrocardiogram with an abnormal reading, and only 43.8% of the patients had obstructive lesions, of whom 33.2% were patients with type I infarction. A 12.2% prevalence was found for type II infarction, and 17% for the MINOCA category. Inpatient mortality was 2.5%, mainly due to cardiogenic shock. Conclusions: patients with acute coronary syndrome were predominantly males with cardio vascular risk factors. In this study, most patients did not have obstructive lesions on arteriography. However, type I infarction was the most common type. (Acta Med Colomb 2022; 47. DOI:https://doi.org/10.36104/amc.2022.2350).

Objetivo: describir las características clínicas, imagenológicas y de laboratorio de pacientes llevados a arteriografía coronaria con diagnóstico presuntivo de síndrome coronario agudo, en el periodo comprendido entre enero de 2107 y diciembre 2019; así como las frecuencias de los tipos de infarto según la definición universal. Metodología: estudio observacional de corte transversal, de pacientes mayores de 18 años llevados a coronariografía, en un hospital universitario de Bogotá. Mediante el software STATA, se realizó el análisis estadístico, con cálculo de frecuencias absolutas, proporciones, medidas de tendencia central y dispersión según el comportamiento de las variables. Se realizó la clasificación de pacientes según la cuarta definición universal de infarto, identificando cada una de las frecuen cias respectivas. Resultados: se analizaron 714 historias clínicas, correspondientes a 459 hombres y 255 mu jeres, con hipertensión arterial, dislipidemia, obesidad, diabetes y enfermedad coronaria previa como factores de riesgo cardiovascular más frecuentes. El 68.9% de pacientes tuvo un electrocar diograma interpretado como anormal y solo 43.8% de pacientes tuvo lesiones obstructivas, de los cuales 33.2% correspondió a pacientes con infarto tipo I. Se encontró una prevalencia de 12.2% para infarto tipo II y del 17% para la categoría de MINOCA. La mortalidad intrahospitalaria fue de 2.5%, principalmente por choque cardiogénico. Conclusiones: la población masculina con factores de riesgo cardiovascular, predominó en la presentación del síndrome coronario agudo. Para este estudio, la mayoría de los pacientes no tuvo lesiones obstructivas en la arteriografía. Sin embargo, dentro de los tipos de infarto; el infarto tipo I fue el más frecuente. (Acta Med Colomb 2022; 47. DOI:https://doi.org/10.36104/amc.2022.2350).

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In clinical practice, we need to develop new tools to identify the residual cardiovascular risk after acute coronary syndrome (ACS). This study aimed to evaluate whether the monocyte to high-density lipoprotein cholesterol ratio (MHR) variation (ΔMHR) obtained during hospital admission (MHR1) and repeated in the first outpatient evaluation (MHR2) is a predictor of major adverse cardiovascular events (MACE) after ACS. One hundred ninety-one patients admitted for ACS were prospectively included. The ΔMHR was calculated by subtracting MHR1 from MHR2. Patients were followed for 166±38 days in which the occurrence of MACE was observed. The best cutoff for ΔMHR was zero (0), and individuals were divided into two groups: ΔMHR<0 (n=113) and ΔMHR≥0 (n=78). The presence of MACE was higher in the ΔMHR≥0 (22%) than in the ΔMHR<0 (7%), with a hazard ratio (HR) of 3.96 (95% confidence interval [CI]: 1.74-8.99; P=0.0004). After adjusting for confounders, ΔMHR≥0 remained an independent MACE predictor with an adjusted HR of 3.13 (95%CI: 1.35-7.26, P=0.008). In conclusion, our study showed that ΔMHR was an independent MACE predictor after ACS. Thus, ΔMHR is a potential marker of residual cardiovascular risk after ACS.

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Introducción: En numerosos estudios realizados en las últimas 3 décadas, se ha tratado de atribuir una relación causal a la enfermedad periodontal en la fisiopatología de la cardiopatía isquémica. Objetivo: Caracterizar el estado periodontal de pacientes con cardiopatía isquémica y algunos factores de riesgo cardiovascular. Métodos: Se realizó un estudio transversal de 50 pacientes, atendidos en la sala de cuidados coronarios del Hospital Provincial Vladimir Ilich Lenin de Holguín, desde septiembre de 2019 hasta enero de 2020. Se evaluó el estado periodontal mediante el Índice Periodontal de Russell simplificado. Se exploraron algunos factores de riesgo de la cardiopatía isquémica y se emplearon métodos teóricos, empíricos, así como la estadística descriptiva. Resultados: En la serie predominó el grupo de 60-69 años de edad (23 para 46,0 %); 56,0 % de los pacientes presentó infarto agudo de miocardio y 62,0 % periodontitis avanzada. Entre los factores de riesgo cardiovascular más frecuentes figuraron: hipertensión arterial (74,0 %) y tabaquismo (70,0 %). Conclusiones: En este estudio se halló, en gran medida, la periodontitis crónica en pacientes con cardiopatía isquémica, lo cual sirve de pauta para la toma de decisiones de médicos y estomatólogos.

Introduction: In numerous studies carried out in the last 3 decades, it has been tried to attribute a causal relationship to the periodontal disease in the pathophysiology of the ischemic heart disease. Objective: To characterize the periodontal state of patients with ischemic heart disease and some cardiovascular risk factors. Methods: A cross-sectional study of 50 patients, assisted in the Coronary Cares Service of Vladimir Ilich Lenin Provincial Hospital in Holguín, was carried out from September, 2019 to January, 2020. The periodontal state was evaluated by means of the Russell Periodontal Index simplified. Some risk factors of the ischemic heart disease were explored and theoretical, empiric methods were used, as well as the descriptive statistic. Results: In the series there was a prevalence of the 60-69 age group (23 for 46 %); 56.0 % of the patients presented acute myocardial infarction and 62.0 % presented advanced periodontitis. Among the most frequent cardiovascular risk factors we can mention: hypertension (74.0 %) and nicotine addiction (70.0 %). Conclusions: In this study it was found, in great measure, the chronic periodontitis in patients with ischemic heart disease, which serves as rule for the decisions making of doctors and dentists.

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Introducción: El síndrome de Wellens constituye un equivalente del síndrome coronario agudo con elevación del segmento ST. Este incluye dos patrones electrocardiográficos que sugieren lesión crítica de la arteria descendente anterior. Objetivo: Evaluar probables factores asociados al síndrome de Wellens en pacientes con síndrome coronario agudo sin elevación del segmento ST y lesiones coronarias significativas en la arteria descendente anterior. Material y métodos: Se realizó un estudio observacional, analítico, transversal en pacientes con diagnóstico de síndrome coronario agudo sin elevación del ST y lesión significativa en la arteria descendente anterior, comprobada mediante coronariografía, ingresados en la unidad de cuidados coronarios intensivos del Hospital Clínico-Quirúrgico Manuel Fajardo entre el 2016 y 2019. Resultados: La edad media fue de 66 años, predominó el sexo masculino (53,9 por ciento) y el antecedente de hipertensión arterial (89,5 por ciento). Los pacientes con síndrome de Wellens tuvieron un significativo menor porcentaje de antecedente de cardiopatía isquémica (58,1 por ciento vs. 84,8 por ciento; p = 0,012). Además, el síndrome arrojó asociación estadísticamente muy significativa con la condición de fumador activo (51,2 por ciento vs. 15,2 por ciento; p < 0,01). No se encontró relación estadística significativa entre el síndrome de Wellens y el resultado angiográfico. Conclusiones: La presencia de los patrones electrocardiográficos del síndrome de Wellens se asocia con el hábito tabáquico en pacientes con síndrome coronario agudo sin elevación del segmento ST y lesiones coronarias en la arteria descendente anterior, y su ausencia se asocia con el antecedente de cardiopatía isquémica en el mismo subgrupo de individuos(AU)

Introduction: Wellens' syndrome is equivalent to acute coronary syndrome with ST-segment elevation. It includes two electrocardiographic patterns suggesting a critical lesion in the anterior descending artery. Objective: Evaluate probable factors associated to Wellens' syndrome in patients with acute coronary syndrome without ST-segment elevation and significant coronary lesions in the anterior descending artery. Methods: A cross-sectional observational analytical study was conducted of patients diagnosed with acute coronary syndrome without ST-segment elevation and significant lesion in the anterior descending artery verified by coronary arteriography, admitted to the intensive coronary care unit at Manuel Fajardo Clinical Surgical Hospital in the period 2016-2019. Results: Mean age was 66 years, with a predominance of the male sex (53.9 percent) and a history of hypertension (89.5 percent). Patients with Wellens' syndrome had a significantly lower percentage of ischemic heart disease antecedents (58.1 percent vs. 84.8 percent; p = 0.012). A very significant statistical association was observed between the syndrome and active smoking (51.2 percent vs. 15.2 percent; p < 0.01). A significant statistical relationship was not found between Wellens' syndrome and angiographic results. Conclusions: The presence of electrocardiographic patterns of Wellens' syndrome is associated to smoking in patients with acute coronary syndrome without ST-segment elevation and coronary lesions in the anterior descending artery, whereas their absence is associated to a history of ischemic heart disease in the same subgroup of individuals(AU)

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El Síndrome coronario agudo (SCA) se define como la obstrucción brusca de una arteria que puede dar lugar a una isquemia miocárdica aguda que se acompaña de un síndrome clínico característico que puede ir desde una isquemia con elevación o sin elevación en el segmento ST, angina estable o inestable y muerte súbita. Dado que el SCA es considerado un problema mundial por su alta incidencia y una de las principales causas de muerte es que resulta indispensable la creación y aplicación de un protocolo de recepción del paciente con SCA donde el enfermero que recepciona al paciente con dolor torácico en un servicio de urgencia pueda realizar la valoración de forma oportuna y rápida teniendo en cuenta una secuencia de intervenciones y cuidados que se encuentren plasmados en una planilla el cual garantice la implementación de las medidas terapéuticas a tiempo, aumentando la eficacia de las mismas, reduciendo la morbimortalidad y disminuyendo los costos hospitalarios. El objetivo del protocolo es estandarizar las intervenciones y cuidados de enfermería en la atención inicial del paciente con SCA[AU]

Acute coronary syndrome (ACS) is defined as a sudden obstruction of an artery that can lead to acute myocardial ischemia that is accompanied by a characteristic clinical syndrome that can range from elevation or without elevation ischemia in the ST segment, angina stable or unstable and sudden death. Ince ACS is considered a worldwide problem due to its high incidence and one of the main causes of death, it is essential to create and apply a protocol for receiving the patient with ACS, where the nurse who receives the patient with chest pain in a The emergency service can carry out the assessment in a timely and fast way, taking into account a sequence of interventions and care that are reflected in a schedule that guarantees the implementation of therapeutic measures in time, increasing their effectiveness, reducing morbidity and mortality. and lowering hospital costs. The objective of the protocol is to standardize nursing interventions and care in the initial care of the patient with ACS[AU]

A síndrome coronariana aguda (SCA) é definida como uma obstrução repentina de uma artéria que pode levar a isquemia miocárdica aguda, acompanhada por uma síndrome clínica característica que pode variar de elevação ou sem isquemia de elevação no segmento ST, angina morte estável ou instável e repentina.Como a SCA é considerada um problema mundial devido à sua alta incidência e uma das principais causas de morte, é essencial criar e aplicar um protocolo para receber o paciente com SCA, onde a enfermeira que recebe o paciente com dor no peito O serviço de emergência pode realizar a avaliação de maneira oportuna e rápida, levando em consideração uma sequência de intervenções e cuidados que se refletem em um cronograma que garante a implementação de medidas terapêuticas no tempo, aumentando sua efetividade, reduzindo a morbimortalidade. e redução de custos hospitalares. O objetivo do protocolo é padronizar intervenções e cuidados de enfermagem nos cuidados iniciais do paciente com SCA[AU]

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INTRODUCTION: There are both biological and sociocultural differences in patients with cardiovascular diseases. Inequalities in the prognosis between women and men are due to several variables, including specific risk factors for females, discrepancies in treatment strategies, and pathophysiological differences. OBJECTIVE: To identify gender differences in patients with acute coronary syndrome. METHODS: An observational, analytical, cross-sectional study was carried out on the gender differences in 170 patients with a diagnosis of acute coronary syndrome who were discharged from the Intensive Coronary Care Unit of the Comandante Manuel Fajardo Clinical-Surgical Hospital in 2016 and 2017. RESULTS: Females had a statistically very significant association, with a higher mean age (68 vs. 62, P<.01) and with a history of arterial hypertension (91.2 vs. 72.3% P<.01). The smoking habit showed a statistically significant association with male individuals (50.5 vs. 30.4% P=.017). Males had a significantly higher median creatinine (90µmol/L vs. 80µmol/L, P<.01). Women showed an increased risk of haemodynamic complications (OR=3.11, 95% CI=1.20-8.04). CONCLUSIONS: In women with acute coronary syndrome, being female is associated with older age, a history of arterial hypertension, and the appearance of haemodynamic complications during admission. Males are associated with smoking habits and higher concentrations of serum creatinine.

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OBJECTIVES: High incidence and case fatality of unstable angina (UA) is, to a large extent, a consequence of the lack of highly sensitive and specific non-invasive markers. Circulating microRNAs (miRNAs) have been widely recommended as potential biomarkers for numerous diseases. In the present study, we characterized distinctive miRNA expression profiles in patients with stable angina (SA), UA, and normal coronary arteries (NCA), and identified promising candidates for UA diagnosis. METHODS: Serum was collected from patients with SA, UA, and NCA who visited the Department of Cardiovascular Diseases of the Meizhou People's Hospital. Small RNA sequencing was carried out on an Illumina HiSeq 2500 platform. miRNA expression in different groups of patients was profiled and then confirmed based on that in an independent set of patients. Functions of differentially expressed miRNAs were predicted using gene ontology classification and Kyoto Encyclopedia of Genes and Genomes pathway analysis. RESULTS: Our results indicated that circulating miRNA expression profiles differed between SA, UA, and NCA patients. A total of 36 and 161 miRNAs were dysregulated in SA and UA patients, respectively. miRNA expression was validated by reverse transcription quantitative polymerase chain reaction. CONCLUSION: The results suggest that circulating miRNAs are potential biomarkers of UA.

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RESUMEN Introducción: El síndrome de Wellens es un patrón electrocardiográfico que se ha sugerido desde la década del 80 como indicador de obstrucción grave de la arteria descendente anterior, a pesar de ello es poco conocido y no se encuentra en las principales guías de tratamiento de los síndromes coronarios agudos. Objetivo: Demostrar la utilidad del diagnóstico del síndrome de Wellens como predictor de obstrucción grave de la descendente anterior. Método: Se realizó un estudio transversal con componente analítico, que abarcó a los 40 pacientes ingresados en la Unidad de Cuidados Coronarios Intensivos del Hospital Manuel Fajardo, en el período enero de 2016 hasta diciembre de 2017, con diagnóstico de síndrome coronario agudo sin elevación del segmento ST, a los que se les realizó coronariografía. Resultados: Se encontró la presencia de síndrome de Wellens en un 13,5% de los pacientes ingresados con este tipo de síndrome coronario agudo. La edad, el sexo y la presencia de comorbilidades no se relacionaron significativamente con la presencia de este síndrome. El estudio angiográfico evidenció, en los pacientes con un síndrome de Wellens, un riesgo relativo 3,4 veces mayor que el resto, de presentar una obstrucción grave de la arteria descendente anterior. Conclusiones: La identificación oportuna del síndrome de Wellens y su relación con una obstrucción coronaria grave deben motivar una estrategia intervencionista precoz en estos casos.

ABSTRACT Introduction: Wellens syndrome is an electrocardiographic pattern that has been suggested, since the 1980s, as indicator of severe obstruction of the left anterior descending artery, although it is poorly understood and it is not found in the main treatment guidelines for acute coronary syndromes. Objective: To demonstrate the usefulness of the diagnosis of Wellens syndrome as a predictor of severe obstruction of the left anterior descending artery. Method: A cross-sectional study with an analytical component was carried out, covering the 40 patients admitted to the Intensive Coronary Care Unit of the Hospital Manuel Fajardo, in the period from January 2016 to December 2017, with a diagnosis of non-ST-segment elevation acute coronary syndrome, who underwent coronary angiography. Results: The presence of Wellens syndrome was found in 13.5% of the patients admitted with this type of acute coronary syndrome. Age, sex and the presence of comorbidities were not significantly related to the presence of this syndrome. The angiographic study showed, in patients with a Wellens syndrome, a relative risk -3.4 times greater than the rest- of presenting a severe obstruction of the left anterior descending artery. Conclusions: The timely identification of Wellens syndrome and its relationship with a severe coronary obstruction should motivate an early interventionist strategy in these cases.

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Cardiovascular disease (CVD) is the main cause of death worldwide, including in Brazil. Angina pectoris is a challenging disease because its clinical manifestation is not always related to the degree of obstruction. Visceral pain fromany source can be totally disabling. It influences all aspects of the life of a patient and it can be one of the main causes of absence from work and of family disruption. Spinal cord electrical stimulation (SCES) has been traditionally applied for the treatment of neuropathic pain, with good to excellent results. Visceral pain syndrome can be as debilitating and disabling as somatic or neuropathic pain; however, there seems to be a lack of consensus on the appropriate treatment and strategies for these disorders. Themajor difference of SCES for visceral pain, compared to postlaminectomy syndrome or to regional complex syndrome, is the number of stimulated dermatomes. In most viscera, the somatotopic arrangement has two to four medullar levels, sometimes requiring laterality. After reviewing the literature, we have concluded that SCES is now a viable, low-risk option with satisfactory results for the treatment of neuropathic and visceral pain; therefore, it can be used in refractory angina after the failure of standard therapy. However, further studies are required to increase the application and efficacy of this procedure in the clinical practice.

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Introducción: El espectro clínico de los Síndromes Coronarios Agudos sin elevación del segmento ST incluye tanto a pacientes asintomáticos como a los que presentan isquemia activa, inestabilidad eléctrica, hemodinámica o parada cardiaca. Objetivo: Evaluar probables factores predictivos de complicaciones intrahospitalarias no letales en pacientes con diagnóstico de Síndrome Coronario Agudo sin elevación del segmento ST. Material y Métodos: Estudio observacional, analítico, de corte transversal con un universo de 218 individuos ingresados en la Unidad de Cuidados Coronarios Intensivos del Hospital Clínico-Quirúrgico Manuel Fajardo en 2016 y 2017. Resultados: Predominó el sexo masculino (51.4 por ciento) y la edad media fue de 68 años. Prevaleció la Hipertensión Arterial como factor de riesgo coronario. La edad mostró asociación estadística significativa con la aparición de cualquier complicación (p=0.015) y con las complicaciones hemodinámicas (p=0,014). El riesgo intermedio-alto, según el score TIMI, tuvo asociación estadísticamente muy significativa con las complicaciones hemodinámicas (p<0.01). Conclusiones: La edad tuvo asociación estadística con la aparición de complicaciones intrahospitalarias no letales. El sexo no se asoció con las complicaciones ni los antecedentes estudiados tampoco. Los pacientes con un riesgo intermedio-alto al ingreso, se asociaron con las complicaciones hemodinámicas(AU)

Introduction: The clinical spectrum of Non-ST-segment elevation Acute Coronary Syndromes includes both asymptomatic patients and those with active ischemia, electrical instability, hemodynamic or cardiac arrest. Objective: To evaluate probable predictive factors of non-lethal intra-hospital complications in patients diagnosed with Non-ST-segment elevation Acute Coronary Syndrome. Material and Methods: An observational, analytical, cross-sectional study was conducted with a universe of 218 individuals admitted into the Intensive Coronary Care Unit of Manuel Fajardo Clinical and Surgical Hospital between 2016 and 2017. Results: Male sex predominated (51.4 percent) and the mean age was 68 years. Arterial Hypertension prevailed as a coronary risk factor. The age showed significant statistical association with the appearance of any complication (p = 0.015) and with hemodynamic complications (p =0,014). The intermediate-high risk, according to the TIMI score, had a statistically significant association with hemodynamic complications (p <0.01). Conclusions: Age was statistically associated with the appearance of non-lethal intra-hospital complications. Sex was not associated with complications, nor did the background studied either. Patients with an intermediate-high risk at admission were associated with hemodynamic complications(AU)

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There is increasing evidence that serum adipokine levels are associated with higher risks of cardiovascular diseases. As an important adipokine, fibroblast growth factor 21 (FGF21) has been demonstrated to be associated with atherosclerosis and coronary artery disease (CAD). However, circulating level of FGF21 in patients with angina pectoris has not yet been investigated. Circulating FGF21 level was examined in 197 patients with stable angina pectoris (SAP, n=66), unstable angina pectoris (UAP, n=76), and control subjects (n=55) along with clinical variables of cardiovascular risk factors. Serum FGF21 concentrations on admission were significantly increased more in patients with UAP than those with SAP (Ln-FGF21: 5.26 ± 0.87 compared with 4.85 ± 0.77, P<0.05) and control subjects (natural logarithm (Ln)-FGF21: 5.26 ± 0.87 compared with 4.54 ± 0.72, P<0.01). The correlation analysis revealed that serum FGF21 concentration was positively correlated with the levels of cardiac troponin I (cTnI) (r2 = 0.026, P=0.027) and creatine kinase-MB (CK-MB) (r2 = 0.023, P= 0.04). Furthermore, FGF21 level was identified as an independent factor associated with the risks of UAP (odds ratio (OR): 2.781; 95% CI: 1.476-5.239; P=0.002), after adjusting for gender, age, and body mass index (BMI). However, there were no correlations between serum FGF21 levels and the presence of SAP (OR: 1.248; 95% CI: 0.703-2.215; P=0.448). The present study indicates that FGF21 has a strong correlation and precise predictability for increased risks of UAP, that is independent of traditional risk factors of angina pectoris.

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Resumen Antecedentes: El infarto agudo de miocardio representa la primera causa de muerte no trasmisible a nivel mundial. Su diagnóstico es una tarea altamente compleja que se ha intentado modelar mediante métodos automáticos. Se expone una revisión sistemática de estudios de pruebas diagnósticas de los síndromes coronarios agudos mediante sistemas inteligentes. Métodos: Revisión sistemática de la literatura a partir de Medline, Embase, Scopus, IEEE/IET Electronic Library, ISI Web Of Science, Latindex y LILACS de la evaluación diagnóstica de los síndromes coronarios agudos mediante sistemas inteligentes. Fue realizada por 2 revisores de manera independiente y las discrepancias se resolvieron por una tercera persona. Se extrajeron las características operativas de cada herramienta. Resultados: En total, 35 artículos cumplieron los criterios de inclusión. En 22 (62.8%) se utilizaron redes neuronales. Cinco comparan varias herramientas de sistemas inteligentes. En 13 se abarcaba todos los síndromes coronarios agudos y en 22 solo los infartos. En 21 los datos de entrada fueron la clínica y el electrocardiograma, en 10 solo el electrocardiograma. La mayoría utilizan como referente estándar el contexto clínico. Se encontraron altos niveles de precisión diagnóstica con un mejor rendimiento en el caso de redes neuronales y máquinas de soporte de vectores en comparación con las herramientas estadísticas de reconocimiento de patrones y árboles de decisiones. Conclusiones: Encontramos una amplia evidencia de que los abordajes a través de las herramientas de sistemas inteligentes alcanzan un alto nivel de precisión por lo que deberían ser consideradas como herramientas para el soporte de las decisiones diagnósticas de los síndromes coronarios agudos.

Abstract Background: Acute myocardial infarction is the leading cause of non-communicable deaths worldwide. Its diagnosis is a highly complex task, for which modelling through automated methods has been attempted. A systematic review of the literature was performed on diagnostic tests that applied intelligent systems tools in the diagnosis of acute coronary syndromes. Methods: A systematic review of the literature is presented using Medline, Embase, Scopus, IEEE/IET Electronic Library, ISI Web of Science, Latindex and LILACS databases for articles that include the diagnostic evaluation of acute coronary syndromes using intelligent systems. The review process was conducted independently by 2 reviewers, and discrepancies were resolved through the participation of a third person. The operational characteristics of the studied tools were extracted. Results: A total of 35 references met the inclusion criteria. In 22 (62.8%) cases, neural networks were used. In five studies, the performances of several intelligent systems tools were compared. Thirteen studies sought to perform diagnoses of all acute coronary syndromes, and in 22, only infarctions were studied. In 21 cases, clinical and electrocardiographic aspects were used as input data, and in 10, only electrocardiographic data were used. Most intelligent systems use the clinical context as a reference standard. High rates of diagnostic accuracy were found with better performance using neural networks and support vector machines, compared with statistical tools of pattern recognition and decision trees. Conclusions: Extensive evidence was found that shows that using intelligent systems tools achieves a greater degree of accuracy than some clinical algorithms or scales and, thus, should be considered appropriate tools for supporting diagnostic decisions of acute coronary syndromes.

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BACKGROUND: Acute myocardial infarction is the leading cause of non-communicable deaths worldwide. Its diagnosis is a highly complex task, for which modelling through automated methods has been attempted. A systematic review of the literature was performed on diagnostic tests that applied intelligent systems tools in the diagnosis of acute coronary syndromes. METHODS: A systematic review of the literature is presented using Medline, Embase, Scopus, IEEE/IET Electronic Library, ISI Web of Science, Latindex and LILACS databases for articles that include the diagnostic evaluation of acute coronary syndromes using intelligent systems. The review process was conducted independently by 2 reviewers, and discrepancies were resolved through the participation of a third person. The operational characteristics of the studied tools were extracted. RESULTS: A total of 35 references met the inclusion criteria. In 22 (62.8%) cases, neural networks were used. In five studies, the performances of several intelligent systems tools were compared. Thirteen studies sought to perform diagnoses of all acute coronary syndromes, and in 22, only infarctions were studied. In 21 cases, clinical and electrocardiographic aspects were used as input data, and in 10, only electrocardiographic data were used. Most intelligent systems use the clinical context as a reference standard. High rates of diagnostic accuracy were found with better performance using neural networks and support vector machines, compared with statistical tools of pattern recognition and decision trees. CONCLUSIONS: Extensive evidence was found that shows that using intelligent systems tools achieves a greater degree of accuracy than some clinical algorithms or scales and, thus, should be considered appropriate tools for supporting diagnostic decisions of acute coronary syndromes.

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OBJECTIVES: To determine the usefulness of myeloperoxidase in discriminating between patients with acute coronary syndrome and patients with chest pain by other causes. METHODS: The study included all patients over 18 years of age who come consecutively to the emergency department from September 2015 to December 2015 with chest pain of non-traumatic origin. The initial patient evaluation was performed according to the study protocol for patients with suspected acute coronary syndrome (ACS) in our Emergency Department. This included the serial measurement of troponin, and in this case myeloperoxidase, with serialization on admission and at 6h. For the determination of myeloperoxidase (MPO), a single step sandwich enzyme immunoassay by Siemens, automated on a Dimension analyser, was used. RESULTS: Statistically significant differences were observed in the concentration of myeloperoxidase at time 0 among patients diagnosed with ACS: 505 (413)pmol/L, and non-ACS patients: 388 (195)pmol/L (p<.001), as well as at 6h (p<.001). An area under the curve ROC of 0.824 was obtained at 6h for ACS patients, with a confidence interval of 95% from 0.715 to 0.933 and a level of significance of p<.001. Statistically significant differences were also found in the concentration of myeloperoxidase at time 0 and at 6h among patients with ACS and patients with heart disease other than coronary artery disease. CONCLUSIONS: The concentration of MPO helps to differentiate between ACS and non-ACS patients, as well as between ACS patients and patients with heart diseases other than coronary artery disease.

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Abstract Objectives: To determine the usefulness of myeloperoxidase in discriminating between patients with acute coronary syndrome and patients with chest pain by other causes. Methods: The study included all patients over 18 years of age who come consecutively to the emergency department from September 2015 to December 2015 with chest pain of non- traumatic origin. The initial patient evaluation was performed according to the study protocol for patients with suspected acute coronary syndrome (ACS) in our Emergency Department. This included the serial measurement of troponin, and in this case myeloperoxidase, with serialization on admission and at 6 h. For the determination of myeloperoxidase (MPO), a single step sandwich enzyme immunoassay by Siemens, automated on a Dimension analyser, was used. Results: Statistically significant differences were observed in the concentration of myeloperoxidase at time 0 among patients diagnosed with ACS: 505 (413) pmol/L, and non-ACS patients: 388 (195) pmol/L (p < .001), as well as at 6 h (p < .001). An area under the curve ROC of 0.824 was obtained at 6 h for ACS patients, with a confidence interval of 95% from 0.715 to 0.933 and a level of significance of p <.001. Statistically significant differences were also found in the concentration of myeloperoxidase at time 0 and at 6 h among patients with ACS and patients with heart disease other than coronary artery disease. Conclusions: The concentration of MPO helps to differentiate between ACS and non-ACS patients, as well as between ACS patients and patients with heart diseases other than coronary artery disease.

Resumen Objetivos: Conocer la utilidad de mieloperoxidasa (MPO) para discriminar entre pacientes con síndrome coronario agudo y dolor torácico de otras causas. Métodos: De septiembre a diciembre de 2015 se incluyeron todos los pacientes mayores de 18 años que acudieron de forma consecutiva al servicio de urgencias con dolor torácico de origen no traumático. La evaluación inicial del paciente se realizó de acuerdo con el protocolo de estudio para pacientes con sospecha de síndrome coronario agudo (SCA) en nuestro servicio de urgencias, que incluye la medición de troponina y en este caso MPO, con serialización al ingreso y a las 6 h. Para la determinación de MPO se utilizó un inmunoensayo enzimático de tipo sándwich, de una sola etapa de Siemens, automatizado en un equipo Dimension . Resultados: Se obtuvieron diferencias estadísticamente significativas en la concentración de MPO a tiempo 0 entre los pacientes con diagnóstico de SCA: 505 (413) pmol/l y los pacientes no SCA: 388 (195 pmol/l (p < 0.001), así como a las 6 h (p < 0.001). Se obtuvo a las 6 h un área bajo la curva ROC para pacientes con SCA de 0.824 con un intervalo de confianza del 95% de 0.715 a 0.933 y un grado de significación p < 0.001. También se obtuvieron diferencias estadísticamente significativas en la concentración de MPO tanto a tiempo 0 como a las 6 h entre pacientes con SCA y pacientes con enfermedad cardiaca diferente de enfermedad coronaria. Conclusiones: La concentración de MPO sirve para diferenciar entre pacientes SCA y pacientes que no son SCA, así como entre pacientes SCA y pacientes con otras enfermedades cardiacas diferentes a la enfermedad coronaria.

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Se realizó una investigación descriptiva, longitudinal y retrospectiva de 486 adultos egresados vivos tras presentar alguna forma clínica del síndrome coronario agudo, pertenecientes a 4 áreas de salud del municipio de Santiago de Cuba, desde el 2004 hasta el 2007, a fin de identificar algunas características clinicoepidemiológicas de dicha afección según sexo. En esta casuística los hombres de 45-64 años expuestos a la habituación tabáquica resultaron ser los más afectados por el síndrome coronario con elevación del segmento ST, no complicado, lo cual demostró que este problema de salud fue más frecuente en el sexo masculino que en el femenino.

A descriptive, longitudinal and retrospective investigation of 486 adults discharged alive after presenting some clinical form of the acute coronary syndrome belonging to 4 health areas of Santiago de Cuba was carried out, from 2004 to 2007, aimed at identifying some clinical epidemiological characteristics of this disorder according to sex. In this case material men aged 45-64 exposed to nicotine addiction were the most affected by the non complicated coronary syndrome with elevation of the ST segment, which demonstrated that this health problem was more frequent in male than in the female sex.

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