Descripción angiográfica de los aspectos anatómicos y clínicos de la arteria interventricular anterior en un grupo de personas colombianas

Introducción. La arteria interventricular anterior se origina en la coronaria izquierda, irriga la cara anterior de los ventrículos, el ápex y el tabique interventricular; es la segunda arteria más relevante del corazón. Objetivo. Describir las características anatómicas y clínicas de la arteria interventricular anterior mediante angiografía. Materiales y métodos. Se realizó un estudio descriptivo con 200 reportes angiográficos de personas colombianas; se valoraron el origen, el trayecto y la permeabilidad de la arteria interventricular anterior, así como la dominancia coronaria. Se incluyeron datos relacionados con dolor precordial, infarto agudo de miocardio, dislipidemia y alteración electrocardiográfica. No fue posible hacer pruebas estadísticas, debido a la escasa prevalencia de variaciones anatómicas de dicha arteria. Resultados. Se encontró una arteria interventricular anterior con su origen en el seno aórtico izquierdo, sin puente miocárdico, sin alteración de la permeabilidad y con dominancia izquierda. La frecuencia de los puentes fue del 2 % y la dominancia más frecuente fue la derecha en el 86 %. Se presentaron alteraciones de permeabilidad en el 43 % de los casos, las cuales afectaron principalmente al S13. El 25 % de los pacientes presentó dolor precordial; el 40 %, alteraciones ecocardiográficas; el 5 %, cardiopatía isquémica, y el 59 %, alguna alteración electrocardiográfica. Conclusiones. Las variaciones en el origen de la arteria interventricular anterior son poco prevalentes, según reportes de Chile, Colombia y España. Los puentes miocárdicos de esta arteria fueron escasos respecto a otros estudios, lo cual sugiere mejor especificidad de los hallazgos de la angiotomografía o de la disección directa. La permeabilidad coronaria se valora con la escala TIMI (Thrombolysis in Myocardial Infarction); puntajes de 0 y 1 indican una lesión oclusiva asociada con cardiopatía isquémica. La dominancia coronaria más frecuente, según diversas técnicas, es la derecha, seguida de la izquierda en hombres y de una circulación balanceada en mujeres.

Introduction. The anterior interventricular artery originates from the left coronary artery and irrigates the anterior surface of the ventricles, apex, and interventricular septum, making it the second most relevant artery of the heart. Objective. To describe the anatomical and clinical aspects of the anterior interventricular artery through angiography. Materials and methods. A descriptive study was conducted using 200 angiographic reports of Colombian individuals. The anterior interventricular artery's origin, course, patency, and coronary dominance were evaluated. Data related to chest pain, acute myocardial infarction, dyslipidemia, and electrocardiographic abnormalities were included. Statistical tests could not be performed due to this artery's low prevalence of anatomical variations. Results. One anterior interventricular artery was found to have originated from the left coronary sinus without a myocardial bridge, with no alteration in permeability, and with left dominance. The frequency of bridges was 2%, and the most frequent dominance was right in 86; permeability alterations occurred in 43% mainly affecting S13. Twenty-five per cent presented chest pain; 40%, echocardiographic alterations; 5%, ischemic heart disease, and 59%, electrocardiographic alterations. Conclusions. Variations of origin of the anterior interventricular artery have a low prevalence according to reports from Chile, Colombia, and Spain. anterior interventricular artery myocardial bridges were scarce compared to other studies, suggesting better specificity of computed tomography angiography or direct dissection for these findings. The assessment of coronary permeability is graded with the thrombolysis in myocardial infarction scale; values 0 and 1 indicate occlusive lesion associated with ischemic heart disease. According to various techniques, the most frequent coronary dominance the right, followed by the left in men and balanced circulation in women.

Osteomielitis primaria de esternón / Primary sternal osteomyelitis

La osteomielitis primaria de esternón es muy infrecuente en niños, con menos de 100 casos publicados hasta la actualidad. Su presentación clínica es a menudo inespecífica, lo que causa un retraso en el diagnóstico. Se presentan dos nuevos casos de osteomielitis primaria de esternón. Ambos referían un cuadro de fiebre, malestar general, dolor torácico y rechazo del decúbito, con eritema preesternal en uno de los casos. La velocidad de sedimentación globular y la proteína C-reactiva estaban elevadas en ambos casos. El diagnóstico se confirmó mediante estudios de imagen y en un caso se aisló Staphylococcus aureus sensible a meticilina en el hemocultivo. Ambos se recuperaron sin complicaciones con tratamiento antibiótico. Debe tenerse en cuenta la osteomielitis primaria de esternón en el diagnóstico diferencial del dolor torácico, especialmente si se acompaña de fiebre, signos inflamatorios locales, intolerancia al decúbito o elevación de reactantes de fase aguda.

Primary sternal osteomyelitis is very rare in children, with less than 100 cases published to date. Its clinical presentation is often non-specific, which results in a diagnostic delay. Here we describe 2 new cases of primary sternal osteomyelitis. Both referred fever, malaise, chest pain, and refusal to lie down, with pre-sternal erythema in one of the cases. The erythrocyte sedimentation rate and C-reactive protein values were high in both cases. The diagnosis was confirmed by imaging studies; methicillin-sensitive Staphylococcus aureus was isolated in the blood culture of one of them. Both recovered without complications with antibiotic treatment. Primary sternal osteomyelitis should be considered in the differential diagnosis of chest pain, especially if accompanied by fever, local inflammatory signs, intolerance to lying down, or increased acute phase reactants.

Estratificación de riesgo del dolor torácico en el servicio de urgencia / Risk stratification of chest pain in the emergency department

El dolor torácico es un motivo de consulta frecuente en los servicios de urgencia. Su espectro de presentaciones y su diagnóstico diferencial es amplio, con patologías de elevada morbilidad y mortalidad asociadas. Es el síntoma principal en pacientes con un síndrome coronario agudo y, ante su sospecha es mandatorio realizar una evaluación inicial centrada en la estratificación de riesgo de sufrir eventos adversos en cada paciente, para así definir su tratamiento y disposición posterior de forma correcta. Objetivo: presentar los elementos que componen la evaluación inicial del dolor torácico ante una sospecha de síndrome coronario agudo y las herramientas disponibles para realizar la estratificación de riesgo y así guiar la disposición desde el servicio de urgencia. Método: Se realizó una revisión bibliográfica de la literatura sobre la estratificación de riesgo del dolor torácico, buscando la evidencia actual respecto a las herramientas diagnósticas utilizadas habitualmente en el servicio de urgencia. Resultados: Se presenta una revisión con generalidades del dolor torácico, sus diagnósticos diferenciales, los elementos de la evaluación inicial y las herramientas clínicas para la evaluación de riesgo de pacientes con dolor torácico y sospecha de síndrome coronario agudo en el servicio de urgencia. Discusión y conclusiones: La presentación del síndrome coronario agudo es variable en la población. Ante la presencia de un cuadro de dolor atípico y/o un electrocardiograma no diagnóstico, recomendamos el uso de un sistema de puntaje validado como el HEART / HEART pathway para reducir la posibilidad de una inadecuada estratificación de riesgo en el servicio de urgencia

Chest pain is a common complaint in emergency departments. The spectrum of presentation and its differential diagnosis are broad, including pathologies associated with high morbidity and mortality, and it is the main symptom in patients suffering from acute coronary syndrome. If suspected, it is mandatory to work out an initial evaluation focused on the risk stratification of adverse events for each patient to define their correct treatment and disposition. Objective: show the elements that involve the initial evaluation of chest pain suspicious of an acute coronary syndrome, the clinical tools available to perform risk stratification, and guide the disposition from the emergency department. Method: a review of the literature on chest pain risk stratification was performed, looking for current evidence of the most commonly used diagnostic tools in emergency departments. Results: we present a literature review of generalities about chest pain and its differential diagnoses, the elements to consider in the initial evaluation, and clinical tools for risk stratification of patients with suspected acute coronary syndrome at the emergency department. Discussion and conclusions: the presentation of acute coronary syndrome is variable in the population. In the presence of atypical chest pain or a non-diagnostic electrocardiogram, we recommend using a validated score as the HEART / HEART Pathway to reduce the chance of inadequate risk stratification in the emergency department.

Dolor torácico agudo en pacientes jóvenes: reporte de dos casos / Acute chest pain in young patients: report of two cases

Se presentan dos casos clínicos de pacientes jóvenes con dolor torácico agudo, en ellos, el enfoque multidisciplinario y la resonancia magnética cardíaca jugaron un papel crucial en el diagnóstico y tratamiento. Presentación del caso 1. Un paciente de 20 años con dolor precordial y palpitaciones que mostró elevación de los niveles de enzimas cardíacas en los exámenes de laboratorio. La angiografía coronaria no reveló estenosis significativas. Sin embargo, se confirmó el diagnóstico de miocarditis a través de la resonancia magnética cardíaca, lo que llevó al inicio del tratamiento con medicamentos para lograr una función cardíaca adecuada y la prevención del progreso de la enfermedad. Su evolución clínica fue favorable. Presentación del caso 2. Un paciente de 19 años que presentó un dolor torácico intenso que se irradiaba al brazo izquierdo y mandíbula. Los exámenes de laboratorio reportaron elevación de los niveles de troponinas, que generaron la sospecha de un síndrome coronario agudo. La resonancia magnética cardíaca confirmó el diagnóstico de un infarto agudo de miocardio, y la angiografía coronaria reveló una estenosis significativa en la arteria descendente anterior y una ectasia subsiguiente. Durante la hospitalización, se brindó un enfoque terapéutico integral con la administración de medicamentos, monitoreo, control del dolor y prevención de complicaciones, y el paciente mostró una evolución clínica favorable

Two clinical cases of young patients with acute chest pain are presented, where the multidisciplinary approach and cardiac magnetic resonance played a crucial role in diagnosis and treatment. Case presentation 1. A 20 year old patient with precordial pain and palpitations showed elevated cardiac enzyme levels on laboratory examination. Coronary angiography revealed no significant stenosis. However, the diagnosis of myocarditis was confirmed by cardiac magnetic resonance imaging, which led to the initiation of drug treatment to achieve adequate cardiac function and prevention of disease progression. His clinical evolution was favorable. Case presentation 2. 19 year old patient presented with severe chest pain radiating to the left arm and jaw. Laboratory tests reported elevated troponin levels, which raised the suspicion of acute coronary syndrome. Cardiac magnetic resonance imaging confirmed the diagnosis of acute myocardial infarction, and coronary angiography revealed significant stenosis in the anterior descending artery and subsequent ectasia. During hospitalization, a comprehensive therapeutic approach with medication administration, monitoring, pain control, and prevention of complications was provided, and the patient showed a favorable clinical evolution

Prediction of adverse cardiac outcomes in high-risk Mexican patients with chest pain in the emergency department / Desenlaces adversos cardiovasculares en pacientes mexicanos de alto riesgo con dolor torácico en el servicio de urgencias

Abstract Objective: The aim of the study was to compare the discriminative power and accuracy for prediction of MACE of five commonly used scoring tools in Mexican patients with chest pain who present to the ED. Methods: A single-center, prospective, observational, and comparative study of patients admitted to the ED with chest pain as the chief complaint. Five chest pain scoring systems were calculated. The primary endpoint was the composite of cardiovascular death, myocardial infarction, coronary intervention, coronary artery bypass grafting, or readmission for cardiovascular causes within 30 days. Results: A total of 168 patients were studied. The score which provided the highest area under the curve of 0.76 (95% CI: 0.70-0.85) was history, ECG, age, risk factors, and troponin (HEART) score. In addition, the integrated discrimination index for the HEART score was 6% higher when compared to the other four scores. Conclusions: The HEART score provided the best classification tool for identifying those patients at highest risk for MACE, either alone or by adding their results to other classification scores, even in a comorbid population.

Resumen Objetivo: Comparar el poder discriminativo y precisión diagnóstica de Eventos Cardiovasculares Mayores (ECVM) de cinco escalas de clasificación de dolor torácico de uso común en pacientes mexicanos con dolor torácico que acuden al servicio de urgencias. Métodos: Estudio prospectivo, observacional y comparativo que incluyó a pacientes ingresados en urgencias que presentaban dolor torácico como síntoma cardinal. Se calcularon cinco escalas de puntuación de dolor torácico. El desenlance principal fue el compuesto de muerte cardiovascular, infarto de miocardio, intervención coronaria, injerto de derivación de arteria coronaria o reingreso por causas cardiovasculares dentro de los 30 días. Resultados: Se estudió un total de 168 pacientes. La escala de puntuación que proporcionó el área bajo la curva más alta de 0.76 (IC de 95%: 0.70-0.85) fue la escala de historia clínica, ECG, edad, factores de riesgo y troponina (HEART, por sus siglas en inglés). Además, el indice de discriminación efectiva para la puntuación HEART fue un 6% más alto en comparación con las otras cuatro escalas de puntuación. Conclusiones: La escala de HEART proporcionó la mejor herramienta de clasificación para idenfiticar a los pacientes con mayor riesgo de ECVM, ya sea solo a agregando sus resultados a otros puntajes de clasificación, incluso en una población comórbida.

Acute Type A Aortic Dissection and Late Pregnancy: What Should We Do?

ABSTRACT Introduction: Acute type A aortic dissection (AAAD) in late pregnancy is a rare but severe disease. Lack of clinical experience is the main cause of high mortality. This study tries to investigate the multidisciplinary therapeutic strategy for these patients. Case presentation: We reported three patients with AAAD in late pregnancy. Sudden chest pain was the main clinical symptom before operation. All three patients and their newborns survived through multidisciplinary approach in diagnosis and treatment. No serious complications occurred during the mid-term follow-up. Conclusion: Multidisciplinary diagnosis and treatment strategy play a crucial role in saving the lives of pregnant women with AAAD.

The current situation and prospect of nursing construction of chest pain center in regional collaborative model / 中国实用护理杂志

This paper summarized the development status and shortcomings of the nursing field of chest pain center in China′s regional collaborative mode from four aspects, including the construction status of nursing staff, nursing quality control methods, nursing information construction, and nursing construction problems of chest pain centers in regional collaborative mode, so as to provide theoretical reference for the further standardized construction of nursing units in chest pain centers.

Construction and validation of early warning model for acute aortic dissection / 中华急诊医学杂志

Objective:To investigate the clinical characteristics of patients with acute aortic dissection (AAD) through a retrospective and observational study, and to construct an early warning model of AAD that could be used in the emergency room.Methods:The data of 11 583 patients in the Emergency Chest Pain Center from January to December 2019 were retrospectively collected from the Chest Pain Database of Zhongshan Hospital Affiliated to Fudan University. Inclusion criteria: patients with chest pain who attended the Emergency Chest Pain Center between January and December 2019. Exclusion criteria were 1) younger than 18 years, 2) no chest/back pain, 3) patients with incomplete clinical information, and 4) patients with a previous definite diagnosis of aortic dissection who had or had not undergone surgery. The clinical data of 9668 patients with acute chest/back pain were finally collected, excluding 53 patients with previous definite diagnosis of AAD and/or without surgical aortic dissection. A total of 9 615 patients were enrolled as the modeling cohort for early diagnosis of AAD. The patients were divided into the AAD group and non-AAD group according to whether AAD was diagnosed. Risk factors were screened by univariate and multivariate logistic regression, the best fitting model was selected for inclusion in the study, and the early warning model was constructed and visualized based on the nomogram function in R software. The model performance was evaluated by accuracy, specificity, sensitivity, positive likelihood ratio and negative likelihood ratio. The model was validated by a validation cohort of 4808 patients who met the inclusion/exclusion criteria from January 2020 to June 2020 in the Emergency Chest Pain Center of the hospital. The effect of early diagnosis and early warning model was evaluated by calibration curve.Results:After multivariate analysis, the risk factors for AAD were male sex ( OR=0.241, P<0.001), cutting/tear-like pain ( OR=38.309, P<0.001), hypertension ( OR=1.943, P=0.007), high-risk medical history ( OR=12.773, P<0.001), high-risk signs ( OR=7.383, P=0.007), and the first D-dimer value ( OR=1.165, P<0.001), Protective factors include diabetes( OR=0.329, P=0.027) and coronary heart disease ( OR=0.121, P<0.001). The area under the ROC curve (AUC) of the early diagnosis and warning model constructed by combining the risk factors was 0.939(95 CI:0.909-0.969). Preliminary validation results showed that the AUC of the early diagnosis and warning model was 0.910(95 CI:0.870-0.949). Conclusions:Sex, cutting/tear-like pain, hypertension, high-risk medical history, high-risk signs, and first D-dimer value are independent risk factors for early diagnosis of AAD. The model constructed by these risk factors has a good effect on the early diagnosis and warning of AAD, which is helpful for the early clinical identification of AAD patients.

Risk stratification value of HEART score combined with serial cardiac troponin in emergency patients with chest pain / 中华急诊医学杂志

Objective:To explore the risk stratification value of HEART score combined with cardiac troponin (cTn) in emergency patients with chest pain.Methods:A total of 11 583 patients with chest pain who visited the Emergency Department of Zhongshan Hospital Affiliated to Fudan University from January to December 2019 were retrospectively collected. Patients who unfinished 0 h high-sensitivity cardiac troponin T (hs-cTnT) or electrocardiogram diagnosed ST-segment elevation myocardial infarction (STEMI) or lost to follow-up were excluded, and 7 057 patients were finally included. The final diagnosis of chest pain and the occurrence of major adverse cardiovascular events within 6 mon (6 m MACEs) were followed up by telephone and medical history. The HEART score of each patient was calculated by two attending physicians, and the patients were divided into the low-risk group (0-3 points), intermediate-risk group (4-6 points) and high-risk group (7-10 points) according to the final score. The risk stratification performance and safety of HEART score were observed and analyzed. A total of 1 884 patients who completed serial hs-cTnT tests were divided into groups according to HEART score (≤3 as low-risk group) and HEART score combined with serial hs-cTnT pathway (HEART score ≤3 and two hs-cTnT measurements <0.03 ng/mL as the low-risk group). The sensitivity (SE), specificity (SP), positive predictive value (PPV) and negative predictive value (NPV) of each diagnostic method were calculated to compare the diagnostic performance of the two predictive values.Results:The patients were divided into 3 groups by HEART score : 2 765 (39.2%) patients in the low-risk group, 3 438 (48.7%) in the intermediate-risk group, and 854 (12.1%) in the high-risk group. The incidence of 6 m MACEs in each group was 1.2%, 18% and 55.3%, respectively. When the low-risk threshold was 2, 23.1% of patients entered the low-risk group and the incidence of 6 m MACEs was 0.9%. The receiver operating characteristic (ROC) curve was drawn to evaluate the predictive performance of the HEART score for 6 m MACEs, and the final AUC was 0.831 ( P=0.006, 95% CI: 0.819-0.843). Regarding the occurrence of NSTEMI at the time of this visit, 4 (0.8%) patients were misdiagnosed by using the HEART score alone. Combined with serial troponin detection, the diagnostic SE and NPV were both 100%; at the same time, the diagnostic SE and NPV of 6 m MACEs in patients increased from 98.1% (95% CI: 96.9%-99.1%), 97.9% (95% CI: 96.2%-99%) to 99.1% (95% CI: 97.9%-99.7%) and 98.9% (95% CI: 97.4%-99.6%), the diagnosis SE and NPV of 6 m myocardial infarction and cardiac death in patients increased from 98% (95% CI: 96%-99.2%), 98.6% (95% CI: 97%-99.4%) to 99.2% (95% CI: 97.6%-99.8%) and 99.3% (95% CI: 98.1%-99.9%). Conclusions:The HEART score can be used for risk assessment in emergency patients with chest pain, and a threshold of 2 is recommended for the low-risk group. The diagnostic performance of HEART score combined with serial cTn is better than that of HEART score alone.

Epipericardial fat necrosis as a differential diagnosis of acute chest pain: a case report and algorithm proposal for diagnostic approach

ABSTRACT Chest pain is a frequent, potentially life-threatening condition in the emergency department and requires immediate investigation and treatment. This case report highlights a rare differential diagnosis of pleuritic chest pain: epipericardial fat necrosis. A 29-year-old man presented with normal clinical evaluation, electrocardiography, point-of-care ultrasound, and unremarkable laboratory tests. The initial hypothesis was acute pleuritis. Chest radiography revealed peri-cardiac nonspecific findings, and computed tomography revealed epicardial fat necrosis. Despite the rarity of this condition, accurate diagnosis allows for better practices. An algorithm for a diagnostic approach is proposed.

Predição de Obstrução Coronariana Significativa em População com Suspeita de Doença Coronariana e Ausência de Cálcio Coronariano: CORE-64 e CORE320 / Predicting Significant Coronary Obstruction in a Population with Suspected Coronary Disease and Absence of Coronary Calcium: CORE-64 / CORE320 Studies

Resumo Fundamento A avaliação do Escore de Cálcio Coronariano (ECC) pode ser realizada por tomografia computadorizada sem contraste para prever eventos cardiovasculares, mas tem menor valor na estratificação de risco em pacientes sintomáticos. Objetivo Identificar e validar preditores de obstrução coronariana significativa (OCS) em pacientes sintomáticos sem calcificação da artéria coronária. Métodos Um total de 4258 participantes foram rastreados dos estudos CORE64 e CORE 320, nos quais foram avaliados pacientes encaminhados para angiografia invasiva, e do Quanta Registry que incluiu pacientes encaminhados para angiotomografia. Modelos de regressão logística avaliaram associações entre fatores de risco cardiovascular, ECC e OCS. Um nível de significância de 5% foi usado nas análises. Resultados Dos 509 participantes do estudo CORE, 117 (23%) apresentaram um ECC igual a zero; 13 (11%) pacientes sem cálcio coronariano apresentaram OCS. A ausência de cálcio coronariano correlacionou-se com idade mais jovem, sexo feminino, índice de massa corporal mais baixo, ausência de diabetes, e ausência de dislipidemia. O fato de ser fumante atual aumentou em 3,5 vezes a probabilidade de OCS e outros fatores de risco cardiovasculares não apresentaram associação significativa. Considerando os achados clínicos, um algoritmo para estratificar os pacientes com ECC igual a zero foi proposto, e tiveram desempenho limitado na coorte de validação (AUC 58; IC95% 43, 72). Conclusão Um perfil de risco cardiovascular mais baixo está associado a um ECC igual a zero em pacientes de alto risco. Tabagismo é o preditor mais forte de OCS em pacientes com ausência de cálcio coronariano.

Abstract Background Coronary artery calcium (CAC) scanning can be performed using non-contrast computed tomography to predict cardiovascular events, but has less value for risk stratification in symptomatic patients. Objective To identify and validate predictors of significant coronary obstruction (SCO) in symptomatic patients without coronary artery calcification. Methods A total of 4,258 participants were screened from the CORE64 and CORE320 studies that enrolled patients referred for invasive angiography, and from the Quanta Registry that included patients referred for coronary computed tomography angiography (CTA). Logistic regression models evaluated associations between cardiovascular risk factors, CAC, and SCO. An algorithm to assess the risk of SCO was proposed for patients without CAC. Significance level of 5% was used in the analyses. Results Of the 509 participants of the CORE study, 117 (23%) had zero coronary calcium score; 13 (11%) patients without CAC had SCO. Zero calcium score was related to younger age, female gender, lower body mass index, no diabetes, and no dyslipidemia. Being a current smoker increased ~3.5 fold the probability of SCO and other CV risk factors were not significantly associated. Considering the clinical findings, an algorithm to further stratify zero calcium score patients was proposed and had a limited performance in the validation cohort (AUC 58; 95%CI 43, 72). Conclusion A lower cardiovascular risk profile is associated with zero calcium score in a setting of high-risk patients. Smoking is the strongest predictor of SCO in patients without CAC.

Clinical-epidemiological evaluation of victims of thoracic trauma in a reference hospital in Aracaju-SE / Avaliação clínico-epidemiológica dos pacientes vítimas de trauma torácico em um hospital de referência de Aracaju-SE

ABSTRACT Introduction: thoracic trauma is defined as anything that involves the rib cage, the musculoskeletal framework that houses the heart, lungs, pleurae and mediastinal structures. It can be superficial or immediately lifethreatening for victims. In Brazil, most assistance is due to urban violence. Objective: evaluate the clinical and epidemiological aspect of patients who are victims of thoracic trauma treated at Hospital de Urgência de Sergipe, Aracaju/SE, Brazil. Method: cross-sectional, observational and prospective study, carried out for eleven months, with 100 polytraumatized patients. A semi-structured form was applied, and the data were systematized, analyzed and statistically tested considering a 5% margin of error. Results: 85% of the patients were male, with a mean age of 39.3 and an age range of 30 to 49 years; 57% of them had incomplete primary education, 70% had a family income of up to 2 minimum wages and 41% were from Greater Aracaju. As for the mechanism of trauma, 33% were car-related, with blunt trauma as the main mechanism, and rib fractures as the main consequence. Among penetrating injuries, CWI (26%) and GSW (21%) were the most prevalent, with hemothorax being the main consequence. Most patients underwent thoracostomy (59%). Conclusion: the profile found was of young men, victims of urban violence. The thoracostomy was resolving in most cases and should be instituted promptly when necessary. A smaller number of patients may require thoracotomy, especially in the presence of hemodynamic instability.

RESUMO Introdução: o trauma torácico é definido como toda aquele que envolve a caixa torácica, arcabouço osteomuscular que aloja o coração, os pulmões, as pleuras e as estruturas do mediastino. Pode ser superficial ou causar risco de vida imediato às vítimas. No Brasil, a maioria dos atendimentos é decorrente da violência urbana. Objetivo: avaliar o aspecto clínico-epidemiológico dos pacientes vítimas de trauma torácico atendidos no Hospital de Urgência de Sergipe, Aracaju/SE, Brasil. Métodos: estudo transversal, observacional e prospectivo, realizado durante onze meses, com 100 pacientes politraumatizados. Formulário semiestruturado foi aplicado, e os dados sistematizados, analisados e testados estatisticamente considerando-se a margem de erro de 5%. Resultados: 85% dos pacientes eram do gênero masculino, com idade média de 39,3 e faixa etária de 30 a 49 anos; 57% deles possuíam ensino fundamental incompleto, 70% tinham renda familiar de até 2 salários mínimos e 41% eram provenientes da Grande Aracaju. Quanto ao mecanismo de trauma, 33% foi automobilístico, tendo como principal mecanismo o trauma contuso, e a principal consequência a fratura de arcos costais. Dentre os ferimentos penetrantes, os FAB (26%) e FAF (21%) foram os mais prevalentes, sendo o hemotórax sua principal consequência, sendo maioria dos pacientes submetida a toracostomia (59%). Conclusão: o perfil encontrado foi de homens, jovens, vítimas da violência urbana. A toracostomia foi resolutiva na maioria dos casos e deve ser instituída prontamente quando necessário. Uma menor parte dos pacientes necessitou de toracotomia, principalmente na presença de instabilidade hemodinâmica.

Determining factors of service priority in the risk classification of patients with chest pain / Factores determinantes de la prioridad de servicios en la clasificación de riesgo de pacientes con dolor torácico / Fatores determinantes de prioridade de atendimento na classificação de risco a pacientes com dor torácica

ABSTRACT Objective: To verify the determining factors of high priority in the risk classification and the outcomes of the care provided to adult patients with chest pain. Method: Retrospective study, conducted at an emergency referral service of a public hospital in the interior of São Paulo State, analyzing the records of care performed in the risk classification in 181 medical records of patients with the symptom of chest pain, between August and November 2020. Results: Individuals were most males 98 (54.1%), with moderate pain 133 (73.5), high priority for care 135 (74.5%) and who sought the service spontaneously 139 (76.8%). Of those classified as high priority, 47 (34.8%) were referred to the emergency room and, of these, 27 (17.0%) remained hospitalized. Female gender (p=0.0198; OR=0.40; CI=0.189-0.866) was independently associated with high priority of care. Conclusion: Despite the priority classification, few participants were referred to the emergency room and required hospitalization. Female gender was a protective factor in the risk classification as high priority.

RESUMEN Objetivo: Verificar los factores determinantes de prioridad en la clasificación de riesgo y los resultados de las atenciones realizadas a pacientes adultos con dolor torácico. Método: Estudio retrospectivo realizado en urgencias referidas, del hospital público del interior de Sao Paulo, analizando los registros de las atenciones realizadas en la clasificación de riesgo en 181 prontuarios de pacientes con el síntoma dolor torácico, en el período de agosto a noviembre de 2020. Resultados: Los principales hallazgos del estudio deben presentarse de manera concisa y clara, sin excesivos detalles. Los resultados deben estar alineados con la sección de resultados del artículo completo, proporcionando información más detallada sobre los análisis estadísticos realizados y los principales resultados encontrados. Conclusión: A pesar de la clasificación prioritaria, pocos participantes fueron remitidos a la sala de emergencias y evolucionaron con necesidad de ingreso hospitalario. El sexo femenino fue un factor protector en la clasificación de riesgo como alta prioridad.

RESUMO Objetivo: Verificar os fatores determinantes de alta prioridade na classificação de risco e os desfechos deste atendimento realizado a pacientes adultos com dor torácica. Método: Estudo retrospectivo, realizado em pronto-socorro referenciado, de hospital público do interior de São Paulo, analisando-se os registros dos atendimentos realizados na classificação de risco em181 prontuários de pacientes com o sintoma dor torácica, no período de agosto a novembro de 2020. Resultados: Prevaleceram indivíduos do sexo masculino 98 (54,1%), com dor moderada 133 (73,5%), alta prioridade de atendimento 135(74,5%,) e que procuraram o serviço espontaneamente 139 (76,8%). Dos classificados em alta prioridade, 47 (34,8%) foram encaminhados para sala de emergência, e destes 27(17,0%) permaneceram internados. Sexo feminino (p=0,0198; OR=0,40; IC=0,189-0866) associou-se ao atendimento prioritário. Conclusão: Apesar da classificação prioritária, poucos participantes foram encaminhados à sala de emergência e evoluíram com necessidade de internação hospitalar. Sexo feminino foi fator protetor para classificação em alta prioridade de atendimento.

Construction and validation of simulated scenarios in the emergency care of patients with chest pain / Construcción y validación de escenarios simulados en laatención urgente de pacientes con dolor torácico / Construção e validação de cenários simulados no atendimento de emergência ao paciente com dor torácica

ABSTRACT Objective: To construct and validate clinical simulation scenarios for emergency care for patients with chest pain. Methods: A methodological study carried out in two stages: construction and validity. The construction took place through the survey of evidence from national and international literature. The validity stage took place through instrument assessment by judges, according to the Content Validity Index and application of a pilot test with the target audience. Fifteen judges with expertise in simulation, teaching and/or care participated in the research, in addition to 18 nursing students, in the pilot test. Results: Two scenarios of clinical simulation were constructed, and all the assessed items obtained a value above 0.80, showing evidence of validity, being considered instruments suitable for application. Conclusion: The research contributed to the development and validity of instruments that can be applied for teaching, assessment and training in clinical simulation in emergency care for patients with chest pain.

RESUMEN Objetivo: Construir y validar escenarios de simulación clínica para la atención de emergencia de pacientes con dolor torácico. Métodos: Estudio metodológico realizado en dos etapas: construcción y validación. La construcción se dio a través del levantamiento de evidencias de la literatura nacional e internacional. La etapa de validación se dio a través de la evaluación de los instrumentos por parte de los jueces, según el Índice de Validación de Contenido y aplicación de la prueba piloto con el público objetivo. Quince jueces con experiencia en simulación, enseñanza y/o asistencia participaron de la investigación, además de 18 estudiantes de enfermería, en la prueba piloto. Resultados: Se construyeron dos escenarios de simulación clínica y todos los ítems evaluados obtuvieron un valor superior a 0,80, mostrando evidencias de validez, siendo considerados instrumentos aptos para su aplicación. Conclusión: La investigación contribuyó al desarrollo y validación de instrumentos que pueden ser aplicados para la enseñanza, evaluación y entrenamiento en simulación clínica en la atención de emergencia a pacientes con dolor torácico.

RESUMO Objetivo: Construir e validar cenários de simulação clínica para o atendimento de emergência ao paciente com dor torácica. Métodos: Estudo metodológico realizado em duas etapas: construção e validação. A construção deu-se por meio do levantamento de evidências da literatura nacional e internacional. A etapa de validação deu-se mediante avaliação dos instrumentos pelos juízes, conforme Índice de Validação de Conteúdo e aplicação do teste-piloto com o público-alvo. Participaram da pesquisa 15 juízes com expertise em simulação, docência e/ou assistência, além de18 estudantes de Enfermagem, no teste piloto. Resultados: Foram construídos dois cenários de simulação clínica e todos os itens avaliados obtiveram valor acima de 0,80 apresentando evidência de validade, sendo considerados instrumentos aptos para aplicação. Conclusão: A pesquisa contribuiu para a elaboração e a validação de instrumentos que podem ser aplicados para o ensino, avaliação e capacitação em simulação clínica no atendimento de emergência ao paciente com dor torácica.

Exploring the Feasibility of Machine Learning to Predict Risk Stratification Within 3 Months in Chest Pain Patients with Suspected NSTE-ACS / 生物医学与环境科学（英文）

OBJECTIVE@#We aimed to assess the feasibility and superiority of machine learning (ML) methods to predict the risk of Major Adverse Cardiovascular Events (MACEs) in chest pain patients with NSTE-ACS.@*METHODS@#Enrolled chest pain patients were from two centers, Beijing Anzhen Emergency Chest Pain Center Beijing Bo'ai Hospital, China Rehabilitation Research Center. Five classifiers were used to develop ML models. Accuracy, Precision, Recall, F-Measure and AUC were used to assess the model performance and prediction effect compared with HEART risk scoring system. Ultimately, ML model constructed by Naïve Bayes was employed to predict the occurrence of MACEs.@*RESULTS@#According to learning metrics, ML models constructed by different classifiers were superior over HEART (History, ECG, Age, Risk factors, & Troponin) scoring system when predicting acute myocardial infarction (AMI) and all-cause death. However, according to ROC curves and AUC, ML model constructed by different classifiers performed better than HEART scoring system only in prediction for AMI. Among the five ML algorithms, Linear support vector machine (SVC), Naïve Bayes and Logistic regression classifiers stood out with all Accuracy, Precision, Recall and F-Measure from 0.8 to 1.0 for predicting any event, AMI, revascularization and all-cause death ( vs. HEART ≤ 0.78), with AUC from 0.88 to 0.98 for predicting any event, AMI and revascularization ( vs. HEART ≤ 0.85). ML model developed by Naïve Bayes predicted that suspected acute coronary syndrome (ACS), abnormal electrocardiogram (ECG), elevated hs-cTn I, sex and smoking were risk factors of MACEs.@*CONCLUSION@#Compared with HEART risk scoring system, the superiority of ML method was demonstrated when employing Linear SVC classifier, Naïve Bayes and Logistic. ML method could be a promising method to predict MACEs in chest pain patients with NSTE-ACS.

Application value of the aortic dissection detection risk score plus D-dimer for the early diagnosis of acute aortic dissection / 中国基层医药

Objective:To investigate the application value of aortic dissection detection risk score (ADD-RS) combined with D-dimer (DD) in the early diagnosis of acute aortic dissection (AAD).Methods:The clinical data of 70 patients with suspected aortic dissection detection admitted to The Second Hospital of Jiaxing from August 2019 to April 2020 were collected. All patients were scored using the ADD-RS, and grouped according to the scoring results. The sensitivity and specificity of ADD-RS plus DD in the early diagnosis of AAD were calculated. The areas under the receiver operating characteristic (ROC) curves that were plotted for drADD-RS plus DD versus DD alone to screen AAD were compared to evaluate efficacy. Results:CT angiography results showed that among 70 patients with suspected AAD, 29 patients had AAD and 41 patients had no AAD. A total of 21 patients were scored 0, 41 patients were scored > 1, and 8 patients were scored > 0. ADD-RS > 0 had an overall sensitivity of 79.31% and a specificity of 36.59% for AAD diagnosis. DD test results had an overall sensitivity of 86.20% and a specificity of 36.50% for AAD diagnosis. The area under the ROC curve of ADD-RS = 0 plus DD-negative result and the area under the ROC curve of DD-negative result alone in ruling out AAD were 0.885 with 95% CI (0.786-0.949) and 0.787 with 95% CI (0.673-0.876), respectively. The difference between the two groups was statistically significant ( P = 0.024). Conclusion:Compared with DD-negative result alone, the ADD-RS = 0 plus DD-negative result strategy offers greater specificity to rule out AAD. The combined strategy has a greater efficacy in ruling out AAD. However, a multi-center study involving a large sample is required for in-depth evaluation.

Diagnóstico del síndrome coronario agudo en primer nivel de atención en Colombia e indicaciones de traslado emergente a mayor nivel de complejidad, ¿es posible sin enzimas cardiacas?

El dolor torácico es un motivo de consulta frecuente en el servicio de urgencias y la falta de diagnóstico oportuno del síndrome coronario agudo se asocia a una alta mortalidad y demandas médicas. Existen múltiples algoritmos para descartar esta enfermedad que, sin embargo, están diseñados para instituciones con disponibilidad de biomarcadores cardíacos; en Colombia pocos primeros niveles de atención cuentan con estos. En este artículo se realiza una revisión sobre las herramientas que se han descrito en la literatura para descartar este diagnóstico en el servicio de urgencias de baja complejidad. Se encuentran tres escalas Vancouver Chest Pain Rule, INTERCHEST y Marburg Heart, la última es la que tiene mayor evidencia con algunas limitaciones al ser desarrollada en el contexto de dolor intermitente y no agudo. Se plantea un algoritmo diagnóstico que incluye clínica, electrocardiograma y escalas de predicción.

Summary Chest pain is a frequent complaint in the emergency department, and the lack of timely diagnosis of the acute coronary syndrome is associated with high mortality and malpractice lawsuits. There are multiple algorithms to rule out this disease; however, they are designed for institutions with the availability of cardiac biomarkers; In Colombia, few primary care settings have these. This article reviews the tools that have been described in the literature to rule out this diagnosis in the low-complexity emergency department. There are three scales: Vancouver Chest Pain Rule, INTERCHEST, and Marburg Heart; the latter has the most evidence with some limitations as it was developed in the context of intermittent and non-acute pain. We propose a diagnostic algorithm including physical findings, electrocardiogram, and prediction scales.