Hemoptisis secundaria a tuberculosis pulmonar complicada con pseudoaneurisma de Rasmussen. Reporte de un caso en pediatría. / Hemoptysis in Pulmonary Tuberculosis Complicated by Rasmussen's Pseudoaneurysm. A Pediatric Case Report.

Presentamos el caso de un niño de 12 años que consultó por hemoptisis, sin otros sín- tomas asociados. Se realizó radiografía de tórax (patológica), laboratorio con aumen- to moderado de reactantes de fase aguda, PPD (negativa), esputos x 3 con bacilosco- pias negativas y tomografía de tórax con contraste i.v. que mostró imágenes de árbol en brote en todos los lóbulos y una imagen de dilatación vascular de una rama de la ar- teria pulmonar en lóbulo superior izquierdo. Se plantearon diagnósticos diferenciales: malformación vascular primaria o lesión secundaria a infección. La angiografía digital permitió confirmar el pseudoaneurisma y embolizarlo. Luego de 17 días, 2/3 cultivos de esputo fueron positivos para Mycobacterium tuberculosis. El niño realizó tratamiento antituberculoso con drogas de primera línea con evolución clínica favorable. Este caso resalta la importancia de considerar el pseudoaneurisma de Rasmussen en- tre las posibles complicaciones de un paciente con tuberculosis y hemoptisis recurren- te o masiva.

We present the case of a 12-year-old boy admitted to the hospital due to hemoptysis without other symptoms. We performed a Thorax X-Ray (pathological), laboratory with elevated acute phase reactants, TST (negative), sputum x 3 with negative smear and computed tomography angiography showing a tree-in-bud pattern in all lobes, and di-latation of a brunch of the pulmonary artery in the upper left lobe. We considered pri-mary vascular anomaly or lesion due to infection as a differential diagnosis. The patient underwent digital angiography and therapeutic embolization of this pseudoaneurysm. After seventeen days, 2/3 of the sputum cultures were positive for Mycobacterium tu-berculosis. The patient received standard anti-TB therapy with favorable evolution. This case highlights the importance of considering complications such as Rasmussen's pseudoaneurysm in patients with pulmonary tuberculosis and recurrent or massive hemoptysis.

Utilidad diagnóstica del dímero-D en el tromboembolismo pulmonar de pacientes COVID-19 / DiagnosticutilityofD-dimerin pulmonarythromboembolism in COVID-19 patients

Resumen Introducción: El aumento de la concentración de dímero-D en pacientes COVID-19 se ha asociado a mayor gravedad y peor pronóstico; sin embargo, su rol en predecir el diagnóstico de tromboembolismo pulmonar (TEP), aún es incierto. Objetivo: Evaluar la utilidad del dímero-D plasmático en el diagnóstico de TEP en pacientes con COVID-19. Pacientes y Métodos: Estudio observacional analítico. Se incluyó a pacientes COVID-19 que tenían una angiotomografía computada de tórax (AngioTAC). Se registraron datos clínicos, niveles plasmáticos de dímero-D de ingreso y previo al momento de realizar la AngioTAC. Se identificó la presencia o ausencia de TEP. Resultados: Se incluyeron 163 pacientes; 37(23%) presentaron TEP. Al comparar la serie de pacientes con TEP versus sin TEP, no se encontraron diferencias significativas en características clínicas, ni mortalidad. Hubo diferencias significativas en el nivel plasmático del dímero-D previo a realizar la AngioTAC (3.929 versus 1.912 μg/L; p = 0,005). El área bajo la curva ROC del dímero-D para TEPfue de 0,65. El mejor punto de corte del dímero-D fue de 2.000 μg/L, con una baja sensibilidad y valor predictivo positivo. El valor de corte con el mejor valor predictivo negativo (VPN)fue de 900 μg/L (96%), el cual fue mejor que la estrategia de corte de dímero D ajustado por edad (VPN 90%). Conclusión: La capacidad discriminativa del dímero D para diagnosticar TEP fue baja. En cambio, el dímero D mantiene un alto valor predictivo negativo para descartar TEP, el cual es mayor al valor descrito clásicamente en los pacientes no COVID.

Introduction: Increased D-dimer concentration in COVID-19 patients has been associated with greater severity and worse prognosis; however its role in predicting the diagnosis of pulmonary thromboembolism (PTE), is still uncertain. Objective: To evaluate the usefulness of plasma D-dimer in the diagnosis of PTE in patients with COVID-19. Method: Analytical observational study. COVID-19 patients who had a chest computed tomography angiography (CTA) were included. Clinical data, Ddimer plasma levels on admission and prior to CTA were recorded. The presence or absence of PTE was identified. Results: 163 patients were included, 37 (23%) presented PTE. After comparing the series of patients with PTE versus the series without PTE, no significant differences were found in clinical characteristics or mortality. There were significant differences in the plasma level of D-dimer prior to performing CTA (3,929 μg/L versus. 1,912 μg/L; p = 0.005). The area under the D-dimer ROC curve for PTEprediction was 0.65. The best D-dimer cutoffpoint was 2.000μg/L, with a low sensitivity and positivepredictive value. The cutoff value with the best negativepredictive value (NPV) was 900 μg/L (96%), which was better than the age-adjusted D-dimer cutoff strategy (NPV 90%). Conclusion: The discriminative ability of D-dimer to diagnose PTE was low. In contrast, D-dimer maintains a high negative predictive value to rule out PTE, which is higher than the value classically described in non-COVID patients.

Hallazgos posoperatorios esperables en cirugías de aorta torácica ascendente con angiotomografía computada multicorte: todo lo que un médico radiólogo debe conocer / Expected postoperative findings in ascending thoracic aortic surgeries with multislice angiotomography: Everything a radiologist should know

Resumen Para la reconstrucción y el tratamiento de anomalías que comprometen la aorta torácica pueden emplearse diversas técnicas quirúrgicas abiertas, las cuales estarán determinadas por la patología que presente el paciente. La angiotomografía computada multicorte (ATCMC) es el método de elección para su control y seguimiento. El médico radiólogo debe estar familiarizado con las técnicas quirúrgicas empleadas (Wheat, Bentall de Bono, Cabrol, entre otras), con las reparaciones estructurales que se realizan y con los materiales protésicos utilizados con el fin de evitar una interpretación errónea de las imágenes. El fieltro espontáneamente hiperdenso, los conductos protésicos y sus anastomosis, tanto con la aorta como con los grandes vasos, puede generar errores en el informe final y en el diagnóstico.

Abstract Multiple surgical techniques can be used for the reconstruction and treatment of abnormalities that compromise the thoracic aorta, which will be determined by the patient’s pathology. Multislice computed tomography angiography is the method of choice for their control and monitoring. The radiologist should be familiar with the surgical techniques used (Wheat, Bentall de Bono, and Cabrol, among others), as well as with the structural repairs that are performed and the prosthetic materials used in order to avoid an erroneous interpretation of the images. Spontaneously hyperdense felt, the prosthetic ducts and their anastomosis, both with the aorta and the large vessels, can generate pitfalls in the final report and error in the diagnosis.

Desempenho Diagnóstico da Angiotomografia Computadorizada e da Avaliação Seriada de Troponina Cardíaca Sensível em Pacientes com Dor Torácica e Risco Intermediário para Eventos Cardiovasculares / Diagnostic Performance of Coronary Tomography Angiography and Serial Measurements of Sensitive Cardiac Troponin in Patients With Chest Pain and Intermediate Risk for Cardiovascular Events

Resumo Fundamento A angiotomografia coronária (ATC) tem sido usada para avaliação de dor torácica principalmente em pacientes de baixo risco, e poucos dados existem com pacientes em risco intermediário. Objetivo Avaliar o desempenho de medidas seriadas de troponinas sensíveis e de ATC em pacientes de risco intermediário. Métodos Um total de 100 pacientes com dor torácica, TIMI score 3 ou 4 e troponina negativa foram prospectivamente incluídos. Todos os pacientes foram submetidos à ATC, e aqueles com obstruções ≥ 50% foram encaminhados à cineangiocoronariografia. Pacientes com lesões < 50% recebiam alta hospitalar, receberam alta e foram contatados 30 dias depois por telefonema para avaliação dos desfechos clínicos. Os desfechos foram hospitalização, morte, e infarto agudo do miocárdio em 30 dias. A comparação entre os métodos foi realizada pelo teste de concordância kappa. O desempenho das medidas de troponina e da ATC na detecção de lesões coronárias significativas e desfechos clínicos foi calculado. Os resultados foram considerados estatisticamente significativos quando p <0,05. Resultados Estenose coronária ≥ 50% na ATC foi encontrada em 38% dos pacientes e lesões coronárias significativas na angiografia coronária foram encontradas em 31 pacientes. Dois eventos clínicos foram observados. A análise de concordância Kappa mostrou baixa concordância entre as medidas de troponina e ATC na detecção de lesões coronárias significativas (kappa = 0,022, p = 0,78). O desempenho da ATC para detectar lesões coronárias significativas na angiografia coronária ou para prever eventos clínicos em 30 dias foi melhor que as medidas de troponina sensível (acurácia de 91% versus 60%). Conclusão ATC teve melhor desempenho que as medidas seriadas de troponina na detecção de doença coronariana significativa em pacientes com dor torácica e risco intermediário para eventos cardiovasculares.

Abstract Background Coronary tomography angiography (CTA) has been mainly used for chest pain evaluation in low-risk patients, and few data exist regarding patients at intermediate risk. Objective To evaluate the performance of serial measures of sensitive troponin and CTA in intermediate-risk patients. Methods A total of 100 patients with chest pain, TIMI risk scores of 3 or 4, and negative troponin were prospectively included. All patients underwent CTA and those with coronary stenosis ≥ 50% were referred to invasive coronary angiography. Patients with coronary lesions <50% were discharged and contacted 30 days later by a telephone call to assess clinical outcomes. Outcomes were hospitalization, death, and myocardial infarction at 30 days. The comparison between methods was performed by Kappa agreement test. The performance of troponin measures and CTA for detecting significant coronary lesions and clinical outcomes was calculated. Results were considered statistically significant when p < 0.05. Results Coronary stenosis ≥ 50% on CTA was found in 38% of patients and significant coronary lesions on coronary angiography were found in 31 patients. Two clinical events were observed. Kappa agreement analysis showed low agreement between troponin measures and CTA in the detection of significant coronary lesions (kappa = 0.022, p = 0.78). The performance of CTA for detecting significant coronary lesions on coronary angiography or for predicting clinical events at 30 days was better than sensitive troponin measures (accuracy of 91% versus 60%). Conclusion CTA performed better than sensitive troponin measures in the detection of significant coronary disease in patients with chest pain and intermediate risk for cardiovascular events.

Successful endovascular repair with coil embolization of ruptured right internal thoracic artery aneurysm / Reparo endovascular bem-sucedido de aneurisma da artéria torácica interna direita roto com embolização com molas

Abstract Internal thoracic artery aneurysms (ITAAs) are rare with wide variation in clinical presentation and a high risk of rupture. Endovascular techniques are increasingly being used for treatment of such aneurysms over surgical repair in recent times. A 34-year-old male presented with progressive swelling of the right anterior chest wall for 2 weeks and was diagnosed with right internal thoracic artery aneurysm with contained rupture. He underwent successful endovascular repair with coil embolization of ruptured right ITAA. Post intervention computed tomography (CT) angiography confirmed sealing of the ruptured aneurysm with no residual filling of the sac. At six months follow-up he is doing well with complete resolution of hematoma. This case demonstrates that an endovascular approach with coil embolization is a feasible and safe option for treating the rare ruptured ITAAs.

Resumo Os aneurismas da artéria torácica interna (ITAAs) são raros, com ampla variação na apresentação clínica e alto risco de ruptura. As técnicas endovasculares têm sido cada vez mais utilizadas para o tratamento desses aneurismas em relação ao reparo cirúrgico. Um homem de 34 anos de idade apresentou edema progressivo da parede torácica anterior direita por 2 semanas e foi diagnosticado com aneurisma da artéria mamária interna direita com ruptura contida. Ele foi submetido a reparo endovascular bem-sucedido, com embolização de ITAA direito roto. A angiotomografia computadorizada (angioTC) pós-intervenção confirmou o selamento do aneurisma rompido, sem enchimento residual do saco. No seguimento de 6 meses, ele estava bem, com resolução completa do hematoma. Este caso demonstra que a abordagem endovascular com embolização com molas é uma opção viável e segura no tratamento dos raros ITAAs rotos.

Importance of computed tomography angiography in acute/hyperacute ischemic stroke / Importância da angiotomografia computadorizada no acidente vascular encefálico isquêmico agudo/hiperagudo

Abstract Objective: To evaluate the importance of computed tomography and computed tomography angiography (CTA) in stroke protocols, as well as their impact on endovascular treatment and on the determination of the etiology. Materials and Methods Were evaluated 28 patients with acute/hyperacute stroke in the anterior circulation who underwent intracranial and cervical CTA between April 2018 and August 2019. The parameters evaluated were the degree of stenosis, plaque characteristics, type of infarct, treatment, etiology, and the Alberta Stroke Program Early CT Score (ASPECTS). Results: Of the 28 patients evaluated, 16 (57.1%) had an ASPECTS of 10 (the maximum score, indicative of normality). Four patients (14.3%) underwent thrombolytic treatment, and seven (25.0%) underwent mechanical thrombectomy. The etiology was atherosclerosis in 32.1% of the patients, cerebral small-vessel disease in 7.1%, cardioembolic in 7.1%, and undetermined in 53.6%. Regarding plaque, 17.9% of the patients presented stenosis ≥ 50%, 21.4% presented stable plaques, and 42.9% presented vulnerable plaques. Patients with a lower ASPECTS were more likely to have relevant stenosis and were more likely to have a total infarct. Conclusion: In the evaluation of patients with acute/hyperacute strokes, CTA provides important information, identifying occlusion, as well as helping define the etiology and inform decisions regarding treatment.

Resumo Objetivo: Avaliar a importância da tomografia computadorizada e angiotomografia computadorizada (ATC) no protocolo de acidente vascular encefálico (AVE) e o seu impacto no tratamento endovascular e na determinação da etiologia. Materiais e Métodos: Foram avaliados 28 pacientes com AVE agudo/hiperagudo da circulação anterior que realizaram ATC intracraniana e cervical, no período de abril de 2018 a agosto de 2019. Os parâmetros avaliados foram grau de estenose, placa, tipo do infarto, tratamento, etiologia e classificação Alberta Stroke Program Early CT Score (ASPECTS). Resultados: A maioria dos casos (16; 57,1%) apresentou ASPECTS de 10. Quatro pacientes (14,3%) realizaram tratamento trombolítico e sete (25%) foram submetidos a trombectomia mecânica. A etiologia foi aterosclerose em 32,1% dos pacientes, doença de pequenas artérias em 7,1%, cardioembólico em 7,1% e indeterminada em 53,6%. Em relação à placa, 17,9% apresentaram estenose maior que 50%, 21,4% apresentaram placas estáveis e 42,9%, placas instáveis. Pacientes com ASPECTS mais baixo apresentavam maior probabilidade de ter estenose relevante e apresentavam maior chance de ocorrência de infarto total. Conclusão: A ATC fornece informações importantes na avaliação do paciente com AVE agudo/hiperagudo, identificando a oclusão e auxiliando na definição da etiologia e no direcionamento do tratamento.

Enfermedad de Kawasaki: ¿una entidad exclusiva de niños? / Kawasaki disease, is it exclusive of children?

Resumen La enfermedad de Kawasaki es un síndrome febril agudo y autolimitado, de presunta etiología autoinmune, que característicamente afecta a niños menores de 5 años. Esta enfermedad consiste en una vasculitis aguda de pequeños y medianos vasos que favorece la formación de aneurismas en las arterias coronarias. El diagnóstico en la fase aguda es esencialmente clínico, mientras que en la fase crónica suele hacerse al documentar las secuelas vasculares. La importancia de la identificación apropiada de esta enfermedad radica en que muchos de los infartos fatales y no fatales en personas menores de 40 años tienen hallazgos compatibles con este diagnóstico. Se presenta el caso de un adulto joven con dolor torácico y angiotomografía coronaria con hallazgos compatibles con secuelas de enfermedad de Kawasaki del adulto.

Abstract Kawasaki disease is an acute and self-limited febrile syndrome with a presumed autoimmune etiology that characteristically affects children under 5 years of age. Kawasaki disease is an acute vasculitis of small and medium vessels that facilitates the formation of coronary aneurysms. The diagnosis of the disease during the acute phase is essentially clinical, while the diagnosis of Kawasaki disease during the chronic phase is performed when the vascular complications are detected. The importance of proper identification of Kawasaki disease lies in the fact that many of the fatal and non-fatal infarcts in young adults (<40 years) have findings compatible with this diagnosis. This article describes the case of a young patient with chest pain and coronary angiotomography showing sequelae of Kawasaki disease in the adult.

Predição do Mapa de Estresse em Aorta Ascendente: Otimização da Posição Coaxial no Implante Valvar Aórtico Percutâneo / Prediction of Stress Map in Ascending Aorta - Optimization of the Coaxial Position in Transcatheter Aortic Valve Replacement

Resumo Fundamento O implante valvar aórtico percutâneo (TAVR, do inglês Transcatheter Aortic Valve Replacement) reduz a mortalidade de pacientes portadores de estenose aórtica grave. O conhecimento da distribuição da pressão e tensão de cisalhamento na parede aórtica pode ajudar na identificação de regiões críticas, onde o processo de remodelamento aórtico pode ocorrer. Neste trabalho é apresentado um estudo de simulação computacional da influência do posicionamento do orifício valvar protético na hemodinâmica na raiz de aorta e segmento ascendente. Objetivos A presente análise apresenta um estudo da variação do padrão de fluxo devido a alterações no ângulo do orifício valvar. Métodos Um modelo tridimensional foi gerado a partir do exame de angiotomografia computadorizada da aorta de um paciente que foi submetido ao procedimento de TAVR. Diferentes vazões de fluxo foram impostas através do orifício valvar. Resultados Pequenas variações no ângulo de inclinação causaram mudanças no padrão de fluxo, com deslocamento na posição dos vórtices, na distribuição de pressão e no local de alta tensão cisalhante na parede aórtica. Conclusão Essas características hemodinâmicas podem ser importantes no processo de remodelamento aórtico e distribuição de tensão, além de auxiliar, em um futuro próximo, a otimização do posicionamento da prótese valvar percutânea. (Arq Bras Cardiol. 2020; [online].ahead print, PP.0-0)

Abstract Backgroud Transcatheter aortic valve replacement (TAVR) can reduce mortality among patients with aortic stenosis. Knowledge of pressure distribution and shear stress at the aortic wall may help identify critical regions, where aortic remodeling process may occur. Here a numerical simulation study of the influence of positioning of the prosthetic valve orifice on the flow field is presented. Objective The present analysis provides a perspective of great variance on flow behavior due only to angle changes. Methods A 3D model was generated from computed tomography angiography of a patient who had undergone a TAVR. Different mass flow rates were imposed at the inlet valve. Results Small variations of the tilt angle could modify the nature of the flow, displacing the position of the vortices, and altering the prerssure distribution and the location of high wall shear stress. Conclusion These hemodynamic features may be relevant in the aortic remodeling process and distribution of the stress mapping and could help, in the near future, the optimization of the percutaneous prosthesis implantation. (Arq Bras Cardiol. 2020; [online].ahead print, PP.0-0)

Angiotomografía de la arteria cística en preoperatorio y comorbilidad en colecistectomía laparoscópica por colelitiasis / Angiotomography of the cystic artery in preoperative and comorbidity in laparoscopic cholecystectomy for cholelithiasis

La colecistectomía laparoscópica es el tratamiento de elección de la colelitiasis; sin embargo, se acompaña de comorbilidades y no está exenta de complicaciones mayores que pueden ser letales; la identificación del trígono cistohepático con disección y ligadura de la arteria cística son pasos obligatorios de la cirugía; la identificación de las variaciones de la arteria cística y los conductos biliares pueden minimizar las eventuales complicaciones. Al protocolo preoperatorio se implementó una angiotomografía con Tomógrafo Siemens Somatón Sensation ® de 64 cortes para identificar la arteria cística en pacientes con colelitiasis de la Unidad de Cirugía General del Hospital de Especialidades Teodoro Maldonado Carbo IESS de Guayaquil. Se escogieron 60 pacientes femeninos en forma aleatoria (edades 19-70 años, promedio 44,25 años) y la muestra se dividió en dos grupos de 30; al grupo estudio se aplicó angiotomografía hasta un mes antes de la cirugía y al grupo control se le aplicó el protocolo convencional. Se evaluó morbilidades relacionadas con: hemorragia operatoria por lesión de la arteria cística y en el posoperatorio: infección de herida operatoria, íleo y drenaje. La angiotomografía permitió identificar la arteria cística en el preoperatorio y contribuyó a disminuir comorbilidades que acompañan a la colecistectomía laparoscópica.

Laparoscopic cholecystectomy is the treatment of cholelithiasis of choice; however, it is accompanied by comorbidities and is not exempt from major complications that can be lethal; the identification of the cystohepatic trigone with dissection and ligation of the cystic artery are mandatory steps of surgery; the identification of the variations of the cystic artery and the bile ducts can minimize the possible complications. The preoperative protocol was implemented with an angiotomography with Siemens Somatón Sensation ® 64-slice Tomograph to identify the cystic artery in patients with cholelithiasis of the General Surgery Unit of the Teodoro Maldonado Carbo IESS Specialty Hospital of Guayaquil. 60 female patients were chosen at random (ages 19 -70 years, average 44.25 years) and the sample was divided into two groups of 30; Angiotomography was applied to the study group up to one month before surgery and the conventional protocol was applied to the control group. Morbidities related to: operative haemorrhage due to cystic artery and postoperative injury: operative wound infection, ileus and drainage were evaluated. Angiotomography allowed to identify the cystic artery in the preoperative period and contributed to decrease comorbidities that accompany laparoscopic cholecystectomy.

Síndrome del ligamento arcuato medio / Median arcuate ligament syndrome

Se presenta el caso de una paciente mujer de 63 años de edad, que por epigastralgia severa acompañada de náuseas y sudoración, cursa internaciones en noviembre de 2017 y en febrero de 2018. Como antecedentes de enfermedad cercana, en 2015 presentó un infarto agudo de miocardio (IAM) inferolaterodorsal por disección de la arteria circunfleja. Los estudios post IAM mostraron buena performance miocárdica. En ambas internaciones, la paciente fue evaluada en Unidad Coronaria (UCO) y en Clínica Médica detectándose leve aumento de transaminasas con fosfatasa alcalina (FAL), electrocardiograma (ECG) y Troponina T dentro de parámetros normales. En la primera internación, la ecografía abdominal y la ecoendoscopia biliar descartaron síndrome de la vía biliar y afección pancreática; las transaminasas hepáticas se normalizaron espontáneamente. Durante la segunda internación, y ante reiteración de la sintomatología, se sospechó afección vascular abdominal alta debido al antecedente de disección coronaria; por lo que se le solicitó Angiotomografía de tórax y de abdomen que confirmaron el diagnóstico de Síndrome del Ligamento Arcuato Medio diafragmático. Conclusiones: Los nuevos métodos complementarios de diagnóstico por imágenes permitieron realizar el diagnóstico de esta entidad poco sospechada. (AU)

The case of a 63-year-old female patient is presented, who -due to severe epigastric pain accompanied by nausea and sweating- was admitted to hospital in November 2017 and February 2018. In her medical history of recent disease, she had presented an acute myocardial infarction (AMI) inferolaterodorsal by circumflex artery dissection in 2015. Post-AMI studies showed good myocardial performance. In both hospitalizations, the patient was evaluated in the Coronary Unit (CU) and in the Medical Clinic, showing a slight increase in transaminases with alkaline phosphatase (AF); electrocardiogram (ECG) and Troponin T were within normal parameters. In her first hospitalization, abdominal ultrasound and echoendoscopy of the biliary system ruled out bile duct syndrome and pancreatic disease; liver transaminases normalized spontaneously. During the second hospitalization, and due to repeated symptoms, an upper abdominal vascular condition was suspected due to her history of coronary dissection. Therefore, chest and abdomen CT angiography were indicated which confirmed the diagnosis of diaphragmatic median arcuate ligament syndrome. Conclusions: The new complementary methods of diagnostic imaging allowed the diagnosis of this scarcely suspected syndrome. (AU)

The diagnostic yield of three clinical prediction rules for pulmonary embolism / Rendimiento diagnóstico de tres reglas de predicción clínica para embolia pulmonar

Abstract Objective: pulmonary embolism (PE) is the third cause of cardiovascular death worldwide. The evaluation of pre-test probability using the Wells, Geneva and Pisa clinical prediction rules has been amply validated in prior studies. However, there are insufficient data for evaluating their diagnostic yield in a Colombian population. The goal of this article is to evaluate the yield of these scales in our population. Methods: this was a retrospective cohort study with diagnostic test analysis in a tertiary level hospital from 2009 to 2017, which included all subjects over the age of 18 who had undergone a chest computed tomography angiography (CTA) due to a clinical suspicion of PE. All the necessary variables for constructing the Wells, Geneva and Pisa rules were recorded. Each score was calculated numerically and then classified according to probability. Pulmonary embolism was diagnosed through a CTA read by a radiologist. The data were entered on an Excel spreadsheet and analyzed using a licensed SPSS statistical program. Results: a total of 507 subjects were included for Wells and Geneva scores and 339 for the Pisa score. The average age was 56 years (SD: 19.8) and 56.6% were males. A statistically significant relationship was found between the different calculated scores and the diagnosis of pulmonary embolism: low, intermediate and high Wells probability p<0.001; less probable and probable Wells p<0.001; low, intermediate and high Geneva p=0.006; and low, intermediate, moderate and high Pisa p=0.001. The ACOR for Wells was 0.715 (95% CI:0.663-0.767) (p<0.001), for Geneva was 0.611 (95% CI:0.553-0.668) (p<0.001), and for Pisa was 0.643 (95% CI:0.574-0.713) (p<0.001). Conclusions: the study showed a greater PE diagnostic yield using the Wells score in our setting. There are limitations to the application and development of the Pisa score asociated with a lower yield in our patients.(Acta Med Colomb 2020; 45. DOI:https://doi.org/10.36104/amc.2020.1384).

Resumen Objetivo: la embolia pulmonar (EP) es la tercera causa de muerte cardiovascular en el mundo. La evaluación de la probabilidad pre test a través de reglas de predicción clínica Wells, Ginebra y Pisa ha sido ampliamente validada en estudios previos. Sin embargo, hay datos insuficientes que evalúen el rendimiento diagnóstico de las mismas en población colombiana, este artículo tiene como fin evaluar el rendimiento de estas escalas en nuestra población. Métodos: estudio de cohorte retrospectivo con análisis de prueba diagnóstica en un hospital de III nivel de atención entre los años 2009 y 2017, donde se incluyeron todos los sujetos mayores de 18 años con realización de angiotomografía de tórax (ATC) solicitada por sospecha clínica de EP. Se registraron todas las variables necesarias para la construcción de las reglas de Wells, Ginebra y Pisa. Cada uno de los puntajes se calculó de manera numérica y posteriormente se clasificó según la probabilidad. El diagnóstico de EP se realizó mediante ATC leída por radiólogo. Los datos se ingresaron en una hoja de cálculo de Excel y se analizaron con el programa estadístico SPPS licenciado. Resultados: se ingresaron 507 sujetos para los puntajes de Wells y Ginebra y 339 para el puntaje de Pisa. El promedio de edad fue de 56 años (DS:19.8) y 56.6% de sexo masculino, se encontró una relación estadísticamente significativa entre los diferentes puntajes evaluados y el diagnóstico de embolia pulmonar, Wells probabilidad baja, intermedia y alta p<0.001, Wells menos probable y probable p<0.001, Ginebra bajo, intermedio y alto p=0.006, Pisa bajo, intermedio, moderada y alta p=0.001. El ACOR para Wells fue 0.715(IC95%:0.663-0.767) (p<0.001), Ginebra 0.611(IC95%:0.553-0.668) (P<0.001), Pisa 0.643(IC95%:0.574-0.713) (p<0.001). Conclusiones: se determinó un rendimiento superior para el diagnóstico de EP con el puntaje de Wells en nuestro medio, hay limitaciones con la aplicación y desarrollo del puntaje de Pisa asociado a un rendimiento inferior en nuestros pacientes.(Acta Med Colomb 2020; 45. DOI:https://doi.org/10.36104/amc.2020.1384).

Desarterialización en la hemorragia obstétrica: ligadura de hipogástricas, ováricas, Sampson. Seguimiento por angiotomografía computada pélvica / Dearterialization against obstetric hemorrhage: hypogastric -ovarian ligation- Sampson follow-up by pelvic computed tomography angiography

Resumen OBJETIVO: Describir la técnica Ramírez-Maksymenko (ligadura de arterias hipogástricas, ováricas, Sampson) y mostrar que la angiotomografía computada pélvica inmediata favorece la disminución de la morbilidad y mortalidad materna por hemorragia obstétrica. MATERIALES Y MÉTODOS: Estudio prospectivo efectuado entre los meses de mayo de 2019 a marzo de 2020. Se incluyeron pacientes con hemorragia obstétrica postoperadas con la técnica Ramírez-Maksymenko, con seguimiento por angiotomografía computada pélvica y observación de las principales arterias que irrigan al útero, conforme al tiempo posterior a la cirugía hasta retornar a la normalidad. RESULTADOS: Se estudiaron 5 pacientes que en la angiotomografía computada pélvica posoperatoria se encontraron con adecuada vascularidad uterina por las arterias: sacra media, iliolumbares, vaginales y ováricas. Todas las pacientes retornaron a la normalidad aproximadamente a los 3 meses 14 días. El diámetro de las hipogástricas al día siguiente del posoperatorio fue de 1 mm y a los 3 meses 14 días de 4 mm (normal). CONCLUSIONES: Con esta técnica se evitan transfusiones masivas, ingreso a terapia intensiva; además, disminuye la vascularidad uterina y se favorece el más rápido retorno a la normalidad. Con esta técnica de desarterialización, el útero continúa con adecuada vascularidad por las arterias iliolumbares, sacras medias, vaginales y ramas de las arterias ováricas, a pesar de encontrarse ligadas, lo que debe suceder con otras técnicas quirúrgicas donde se ligan. Una sola seda 1 o hilo crómico del 2-0 es suficiente para disminuir el diámetro de las hipogástricas; algunas técnicas utilizan dos suturas. En 3 meses 14 días, aproximadamente, la circulación regresa a la normalidad.

Abstract OBJECTIVE: To describe the Ramírez-Maksymenko technique (ligation of hypogastric, ovarian, Sampson arteries) and show that immediate pelvic computed tomography angiography favors the decrease in maternal morbidity and mortality due to obstetric hemorrhage. MATERIALS AND METHODS: Prospective study carried out between the months of May 2019 to March 2020. Patients with obstetric hemorrhage postoperated with the Ramírez-Maksymenko technique were included, with follow-up by pelvic computed tomography angiography and observation of the main arteries supplying the uterus, according to the time after surgery until returning to normal. RESULTS: Five patients were studied who, on postoperative pelvic computed tomography angiography, found adequate uterine vascularity through the arteries: medial sacral, iliolumbar, vaginal, and ovarian arteries. All patients returned to normal at approximately 3 months 14 days. The diameter of the hypogastric patients the day after the postoperative period was 1 mm and at 3 months 14 days 4 mm (normal). CONCLUSIONS: With this technique, massive transfusions, admission to intensive care, reduction of uterine vascularity are avoided, and a faster return to normal is favored.With this dearterialization technique, the uterus continues with adequate vascularity through the iliolumbar, middle sacral, vaginal, and branches of the ovarian arteries, despite being linked, which should happen with other surgical techniques where they are ligated. A single silk 1 or 2-0 chromic thread is sufficient to decrease the diameter of the hypogastric; some techniques use two sutures. In approximately 3 months and 14 days, the circulation returns to normal.

Secuestro pulmonar intralobar: hallazgo clínico-radiológico. presentación de un caso / Intralobar pulmonary sequestration. presentation of the case

Se presentó una mujer de 40 años con antecedentes de asma bronquial atendida en el Hospital Clínico Quirúrgico "Hermanos Ameijeiras" de La Habana. Refirió historia de un mes de evolución de tos seca, dolor torácico en hemitórax izquierdo, falta de aire y en dos ocasiones fiebre de 38 °C. Cumplió tratamiento para el proceso infeccioso respiratorio sin resolución. En la radiografía de tórax se evidenció una lesión radiopaca en el lóbulo inferior izquierdo y se confirmó el secuestro pulmonar intralobar con la angiotomografía pulmonar. En el secuestro pulmonar se requiere del uso adecuado de método clínico para su diagnóstico y la toma de decisiones terapéuticas definitivas(AU)

Forty years old woman with a history of severe asthma assisted to the Hospital Clínico Quirúrgico "Hermanos Ameijeiras" in Havana, presenting the following symptoms: dry cough, chest pain in left hemithorax, shortness of breath and fever with a temperature of 38°C (100.4°F) twice in the month. The patient was under treatment to control a respiratory infection, with no resolution reported. Radiography of the thorax revealed a radiopaque lesion in the left lower lobe, and lung sequestration was confirmed by pulmonary angiography. An appropiate use of clinical methods is required to diagnose and undertake the right therapy decisions about the intralobar lung sequestration(AU)

Secuestro pulmonar intralobar: hallazgo clínico-radiológico. Presentación de un caso / Intralobar pulmonary sequestration. Presentation of the case

RESUMEN Se presentó una mujer de 40 años con antecedentes de asma bronquial atendida en el Hospital Clínico Quirúrgico Hermanos Ameijeiras de La Habana. Refirió historia de un mes de evolución de tos seca, dolor torácico en hemitórax izquierdo, falta de aire y en dos ocasiones fiebre de 38 °C. Cumplió tratamiento para el proceso infeccioso respiratorio sin resolución. En la radiografía de tórax se evidenció una lesión radiopaca en el lóbulo inferior izquierdo y se confirmó el secuestro pulmonar intralobar con la angiotomografía pulmonar. En el secuestro pulmonar se requiere del uso adecuado de método clínico para su diagnóstico y la toma de decisiones terapéuticas definitivas.

ABSTRACT Forty years old woman with a history of severe asthma assisted to the Hospital Clínico Quirúrgico Hermanos Ameijeiras in Havana, presenting the following symptoms: dry cough, chest pain in left hemithorax, shortness of breath and fever with a temperature of 38°C twice in the month. The patient was under treatment to control a respiratory infection, with no resolution reported. Radiography of the thorax revealed a radiopaque lesion in the left lower lobe, and lung sequestration was confirmed by pulmonary angiography. An appropiate use of clinical methods is required to diagnose and undertake the right therapy decisions about the intralobar lung sequestration.

Fístulas coronario-pulmonares asintomáticas. Reporte caso / Asymptomatic coronary-pulmonary fistulas. Case report / Fístulas coronário-pulmonares assintomáticaso. Relato de caso

Resumen: La fístula coronaria es una anomalía caracterizada por una comunicación anormal entre una arteria coronaria y una cámara cardíaca o un gran vaso. El 50% de las fístulas se originan de la arteria coronaria derecha, 45% de la arteria coronaria izquierda y menos del 5% en ambas. Se presenta una paciente femenina de 81 años de edad con historia de ataque cerebrovascular isquémico de forma previa, quien ingresa con nuevo evento isquémico cerebral. En estudios complementarios se documentó una fracción de eyección del ventrículo izquierdo reducida por lo que se realizó arteriografía con hallazgo de arterias coronarias epicárdicas sin enfermedad obstructiva significativa, pero con fístula coronario-pulmonar en segmento medio de arteria descendente anterior y una fístula coronario-pulmonar en segmento proximal de la arteria coronaria derecha. Las fístulas coronarias son una entidad rara, con síntomas inespecíficos. La mayoría de las veces se diagnostica de forma incidental al realizar una arteriografía coronaria por otro motivo. El manejo varía de acuerdo a las manifestaciones y anatomía encontrada junto con la experiencia del equipo de cardiología.

Abstract: Coronary fistula is an abnormality characterized by abnormal communication between a coronary artery and a cardiac chamber or large vessel. Half of fistulas originate from the right coronary artery, 45% from the left coronary artery, and less than 5% originate from both. We present an 81-year-old female patient with a history of previous ischemic stroke, who was admitted with a new cerebral ischemic event. In complementary studies, a reduced ejection fraction of the left ventricle was documented, then arteriography was performed showing epicardial coronary arteries without significant obstructive disease, but with coronary-pulmonary fistula in the middle segment of the anterior descending artery and a coronary-pulmonary fistula in the proximal segment of the right coronary artery. Coronary fistulas are a rare entity, with nonspecific symptoms. Most of the time this entity is diagnosed incidentally when performing a coronary arteriography for another reason. Management varies according to the manifestations and anatomy found along with the experience of the cardiology team.

Resumo: A fístula coronária é uma anormalidade caracterizada pela comunicação anormal entre uma artéria coronária e uma câmara cardíaca ou um vaso grande. Metade das fístulas são originárias da artéria coronária direita, 45% da artéria coronária esquerda e menos de 5% são originárias de ambas. Se você apresentar um paciente feminino de 81 anos de idade com história de ataque cerebrovascular isquêmico de forma prévia, que ingressou com o novo evento isquêmico cerebral. Em estudos complementares, documentou-se uma fração de ejeção reduzida do ventrículo esquerdo e, em seguida, foi realizada arteriografia mostrando artérias coronárias epicárdicas sem doença obstrutiva, mas com uma fístula coronário-pulmonar no segmento médio da artéria descendente anterior e uma fístula coronário-pulmonar no segmento proximal da artéria artéria coronária direita. As fístulas coronárias são uma entidade rara, com sintomas inespecíficos. Na maioria das vezes, essa entidade é diagnosticada incidentalmente ao realizar uma arteriografia coronariana por outro motivo. O manejo varia de acordo com as manifestações e anatomia encontradas, juntamente com a experiência da equipe de cardiologia.

Angiotomografía de las variantes anatómicas de la arteria cística: estudio en el preoperatorio de colelitiasis / Angiotomography of the anatomical variants of the cystic artery: pre-operative study of cholelithiasis

La colecistectomía laparoscópica es el tratamiento indicado en la colelitiasis, sin embargo el procedimiento no está exento de complicaciones o morbilidad concomitante. Es posible que, debido a lesiones ductales colaterales, ocurra sangrado con posibilidad de conversión de la cirugía e indeseables resultados. Para un correcto abordaje de la región se hace fundamental la identificación del trígono cistohepático (TCH) y sus componentes, a su vez de la ligadura y sección de la arteria cística (AC). Conociendo la elevada variabilidad de la AC, el objetivo de este trabajo consistió en identificar el número, origen, trayecto y relación de la AC con el TCH y sus variaciones, utilizando angiotomografía por medio de un tomógrafo detector de 64 cortes, en el preoperatorio de 30 pacientes de sexo femenino, entre 24 y 54 años de edad, con colelitiasis diagnosticadas clínicamente y por ecosonografía. La AC en el 76,67 % era única y se encontraba dentro del TCH, en el 16,67 % era única y se observó fuera del TCH. En el 6,67 % se observaron dos AC, una dentro y otra fuera del TCH. En el 66,67 % de los casos la AC se originaba de manera normal de la arteria hepática derecha. La trazabilidad de la AC fue en el 53,3 % medianamente visible y en el 46,7 % de trazabilidad excelente. En conclusión, la identificación de la AC y sus variaciones anatómicas se puede determinar en el preoperatorio y puede ser útil para mejorar el plan quirúrgico en pacientes con colelitiasis, brindando información al procedimiento, optimizarlo y disminuir los riesgos de eventuales complicaciones relacionados con sangrado.

Laparoscopic cholecystectomy is the treatment indicated for cholelithiasis, however the procedure is not free of complications or concomitant morbidity. It is possible that, due to collateral ductal lesions, bleeding occurs with the possibility of surgery conversion and undesirable results. For a correct approach to the region it is essential to identify the cystohepatic trigone (CHT) and its components, as well as the ligation and section of the cystic artery (AC). Knowing the high variability of CA, the aim of this work was to identify the number, origin, path and relationship of CA with the CHT and its variations using angiotomography by means of a 64-slice detector tomograph in the preoperative period of 30 female patients, between 24 and 54 years old, with clinically diagnosed cholelithiasis and by echo sonography. The AC in 76.67 % was unique and was within the CHT, in 16.67 % it was unique and was observed outside the CHT. In 6.67 %, two ACs were observed, one inside and one outside the TCH. In 66.67 % of cases, CA originated normally from the right hepatic artery. The traceability of AC was 53.3 % moderately visible and 46.7 % excellent traceability. In conclusion, the identification of AC and its anatomical variations can be determined in the preoperative period and can be useful to improve the surgical plan in patients with cholelithiasis, providing information on the procedure, optimizing it and reducing the risks of possible bleeding related complications.

Aneurisma gigante de la arteria coronaria derecha, reporte de un caso y revisión de la literatura / Giant aneurysm of the right coronary artery, report of a case and review of the literature

Resumen Los aneurismas de las arterias coronarias se definen como una dilatación localizada que excede el diámetro normal en 1.5 veces. Esta es una condición poco frecuente, su incidencia varía del 0.3 hasta el 5.3% de las angiografías coronarias. Los aneurismas que exceden cuatro veces el diámetro del vaso normal se consideran gigantes. Estos son aún más raros y se presentan en el 0.02 a 0.2% de todos los casos. Existe controversia en cuanto a su fisiopatología, sin embargo, hasta el 50% de los casos se relacionan con la aterosclerosis. Se diagnostican más frecuentemente entre la sexta y séptima décadas de vida. Las principales manifestaciones clínicas están relacionadas con la cardiopatía isquémica. Respecto a su tratamiento, no existe un consenso del manejo en los pacientes adultos, las opciones son: médico, quirúrgico o intervencionismo. Reportamos la presencia de un aneurisma gigante de la coronaria derecha y ectasia gigante del sistema izquierdo con trombosis activa en un hombre con antecedentes de un aneurisma en la aorta abdominal, tratado por vía endovascular, e infarto agudo al miocardio sin elevación del segmento ST no reperfundido. Requirió de estudio de angiotomografía coronaria, el cual permitió la identificación de las características anatómicas de esta enfermedad.

Abstract Coronary artery aneurysms are described as a localized dilatation that exceeds the normal diameter by 1.5 times. This is a rare condition; its incidence varies from 0.3% up to 5.3% of all coronary angiographies. Those aneurysms that exceed 4 times the diameter of a normal artery are considered giant aneurysms, which are even more uncommon, presenting between 0.02% and 0.2% of all cases. There is controversy regarding its pathophysiology, however, up to 50% of the cases are related to atherosclerosis. They are diagnosed more frequently between the sixth and seventh decade of life. The main clinical manifestations are related to ischemic heart disease. Regarding their treatment, there is no general consensus towards its management in adult patients. The options are medical, surgical or percutaneous treatment. We report the presence of a giant aneurysm of the right coronary artery and giant ectasia of the left coronary system with active thrombosis in a man with history of an abdominal aortic aneurysm, with endovascular treatment and a non-ST segment elevation myocardial infarction with no reperfusion strategy, who required a coronary computed tomography, identifying the anatomical characteristics of this disease.