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In. Acquistapace Peroni, Federico Andres; Agorrody Vidal, Guillermo; Arocena, María; Cuesta Holgado, Alejandro Nicolás; Dell'Oca Runco, Nicolás; Raggio Risso, Víctor Enrique; Reyes Cabrera, María Ximena; Ríos Valdez, Mateo; Tortajada Belocon, Gustavo. Pautas de prevención en las principales cardiopatías hereditarias. [Montevideo], Comisión Honoraria para la Salud Cardiovascular, [2023?]. p.45-62, tab.
Monography in Spanish | LILACS, UY-BNMED, BNUY | ID: biblio-1436203
Diagn. tratamento ; 27(2): 42-3, abr-jun. 2022. ilus
Article in Portuguese | LILACS | ID: biblio-1369109
Rev. chil. cardiol ; 41(1): 34-38, abr. 2022. ilus
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1388111


RESUMEN: Se presenta el caso clínico de un paciente que presenta un infarto del miocardio con trombolisis no exitosa y posterior implantación de 2 stents coronarios quien desarrolla, algunos días después, una tormenta eléctrica ventricular. Una ablación de la taquicardia se realizó bajo ECMO, con buen resultado. Se detalla la descripción del caso, revisa y discute el tema.

ABSTRAC: A patient with a myocardial infarction whom, following a failed thrombolisis and implantion of 2 stents developed a ventricular electrical storm and hemodynamic instability. A successful ablation of the tachycardia with the use of ECMO was performed. A full description is included, along with a discussion of the subject.

Humans , Male , Middle Aged , Cardiac Catheterization/instrumentation , Extracorporeal Membrane Oxygenation , Catheter Ablation , Postoperative Complications/surgery , Postoperative Complications/mortality , Tachycardia, Ventricular/surgery , Tachycardia, Ventricular/mortality , Electrocardiography/methods
Chinese Journal of Cardiology ; (12): 549-555, 2022.
Article in Chinese | WPRIM | ID: wpr-940887


Objective: To investigate the acute and long-term outcome of catheter ablation for the treatment of ventricular tachycardia (VT) in patients with arrhythmogenic left ventricular cardiomyopathy (ALVC). Methods: This retrospective, cross-sectional study enrolled ALVC patients undergoing radiofrequency ablation for the treatment of VT at the First Affiliated Hospital of Nanjing Medical University from January 2011 to December 2018 and collected their clinical characteristics and intraoperative electrophysiological examination. Patients were followed up every 6 months after radiofrequency ablation until August 2021. Echocardiographic results and VT recurrence post radiofrequency ablation were analysed. Results: Totally 12 patients were enrolled (mean age: (42±15) years, 11 males(11/12)). The mean of left ventricular end diastolic diameter (LVDd) and left ventricular ejection fraction (LVEF) were (51±5)mm and (65±5)%, respectively. Twelve VTs were induced in 10 patients during the electrophysiological study, and the mean tachycardia cycle length was (293±65) ms. Three-dimensional substrate mapping revealed the diseased area at endocardial site in one patient, at epicardial sites in the other 11 patients (involved endocardial sites in 2 cases) with the basal part near the mitral annulus being the predilection for the substrate (10/11). After the catheter ablation at the endocardial and epicardial sites respectively, the complete procedure endpoint was achieved in all patients (VT cannot be induced post ablation). The median follow-up time was 65 (25, 123) months. One patient was lost to follow-up, and the other 11 patients survived without VT. No significant cardiac function deterioration was detected by the echocardiographic examination ((51±5)mm vs. (52±5)mm, P>0.05 for LVDd, (65±5)% vs. (60±6)%, P>0.05 for LVEF) at the end of follow-up. Conclusion: After radiofrequency ablation, the complete procedure endpoint is achieved in ALVC patients, and the catheter ablation provides long-term ventricular tachycardia control during the long-term follow-up.

Adult , Humans , Male , Middle Aged , Cardiomyopathies , Catheter Ablation , Cross-Sectional Studies , Follow-Up Studies , Pericardium/surgery , Recurrence , Retrospective Studies , Stroke Volume , Tachycardia, Ventricular/surgery , Treatment Outcome , Ventricular Function, Left
J. Card. Arrhythm. (Impr.) ; 34(3): 100-104, Dec., 2021.
Article in English | LILACS | ID: biblio-1359636


Bidirectional ventricular tachycardia (BDVT) is defined by beat-to-beat alternation of the QRS axis on the electrocardiogram. Its diagnosis is uncommon, and the most characteristic etiology is digitalis intoxication (DI). We report the case of a patient with heart failure of valve origin admitted for sepsis that progressed to BDVT and death, associated with DI.

Tachycardia, Ventricular , Digoxin , Toxicity
Arq. bras. cardiol ; 117(5): 1010-1015, nov. 2021. tab, graf
Article in English, Portuguese | LILACS | ID: biblio-1350021


Resumo Fundamento: A doença pelo novo coronavírus (COVID-19) está associada a manifestações clínicas cardiovasculares, incluindo a ocorrência de arritmias cardíacas. Objetivos: Avaliar a incidência de arritmias cardíacas (taquiarritmia atrial, bradiarritmia e taquicardia ventricular sustentada) e de parada cardiorrespiratória (PCR) em uma coorte de pacientes internados com COVID-19 em hospital universitário terciário. Métodos: Estudo de coorte retrospectivo realizado por meio de revisão dos registros de prontuário médico. Para comparação entre os grupos, foi considerado como estatisticamente significativo valor de P < 0,05. Resultados: Foram incluídos 241 pacientes consecutivos com diagnóstico de COVID-19 (idade média, 57,8 ± 15,0 anos; 51,5% homens; 80,5% de raça branca) e 35,3% com necessidade de ventilação mecânica invasiva (VM). A mortalidade geral foi de 26,6%, sendo de 58,8% entre aqueles em VM. Arritmias cardíacas ocorreram em 8,7% dos pacientes, sendo a mais comum taquiarritmia atrial (76,2%). Pacientes com arritmias apresentaram maior mortalidade, 52,4% versus 24,1% (p=0,005). Em análise multivariada, apenas a presença de insuficiência cardíaca foi associada a maior risco de arritmias ( hazard ratio , 11,9; IC 95%: 3,6-39,5; p<0,001). Durante a internação, 3,3% dos pacientes foram atendidos em PCR, com predomínio de ritmos não chocáveis. Todos os atendidos em PCR evoluíram com óbito durante a internação. Conclusão: A incidência de arritmias cardíacas em pacientes internados com COVID-19 em hospital terciário brasileiro foi de 8,7%, sendo a mais comum taquiarritmias atrial. A presença de insuficiência cardíaca foi associada a maior risco de arritmias. Pacientes com COVID-19 atendidos em PCR apresentam elevada mortalidade.

Abstract Background: The coronavirus disease 2019 (COVID-19) is associated with cardiovascular clinical manifestations, including cardiac arrhythmias. Objective: To assess the incidence of cardiac arrhythmias (atrial tachyarrhythmia, bradyarrhythmia, and sustained ventricular tachycardia) and cardiac arrest (CA) in a cohort of patients hospitalized with COVID-19 in a tertiary university-affiliated hospital. Methods: Cohort study with retrospective analysis of electronic medical records. For comparison between groups, a value of p <0.05 was considered statistically significant Results: We included 241 consecutive patients diagnosed with COVID-19 (mean age, 57.8 ± 15.0 years; 51.5% men; 80.5% white), 35.3% of whom received invasive mechanical ventilation (MV). The overall mortality was 26.6%, being 58.8% among those on MV. Cardiac arrhythmias were identified in 8.7% of the patients, the most common being atrial tachyarrhythmia (76.2%). Patients with arrhythmias had higher mortality (52.4% versus 24.1%, p = 0.005). On multivariate analysis, only the presence of heart failure (HF) was associated with a higher risk of arrhythmias (hazard ratio, 11.9; 95% CI: 3.6-39.5; p <0.001). During hospitalization, 3.3% of the patients experienced CA, with a predominance of non-shockable rhythms. All patients experiencing CA died during hospitalization. Conclusions: The incidence of cardiac arrhythmias in patients admitted with COVID-19 to a Brazilian tertiary hospital was 8.7%, and atrial tachyarrhythmia was the most common. Presence of HF was associated with an increased risk of arrhythmias. Patients with COVID-19 experiencing CA have high mortality.

Humans , Male , Female , Adolescent , Adult , Tachycardia, Ventricular/etiology , Tachycardia, Ventricular/epidemiology , COVID-19 , Arrhythmias, Cardiac/etiology , Arrhythmias, Cardiac/epidemiology , Retrospective Studies , Risk Factors , Cohort Studies , Hospital Mortality , SARS-CoV-2 , Middle Aged
Rev. colomb. anestesiol ; 49(3): e500, July-Sept. 2021. graf
Article in English | LILACS, COLNAL | ID: biblio-1280182


Systemic sclerosis is an immunological disorder characterized by tissue fibrosis and multi-organ dysfunction.1 The accompanying images exhibit electrocardiographic changes in severe systemic sclerosis. Advanced 3:1 atrioventricular block, best observed in Lead Vi, suggests extensive fibrosis of the conduction system (Image A). While one P wave is buried in the T wave (black arrows), two are evident (red arrows) along the isoelectric line. Bradyarrhythmia related prolonged QT interval, best measured in Lead II represents increased risk for torsades-de-pointes, a polymorphic ventricular tachyarrhythmia. Additionally, right bundle branch block with giant T wave inversions (T wave depth > 10 mm) in precordial leads V2- 4 suggests pulmonary hypertension. Post-induction the rhythm abruptly changes to torsades-de-pointes (Image B) necessitating defibrillation.

La esclerosis sistémica es un trastorno inmunológico caracterizado por fibrosis tisular y disfunción multiorgánica. 1 Las imágenes adjuntas muestran cambios electrocardiográficos en la esclerosis sistémica grave. El bloqueo auriculoventricular avanzado 3: 1, que se observa mejor en la derivación VI, sugiere una fibrosis extensa del sistema de conducción ( Imagen A ).Mientras que una onda P está enterrada en la onda T (flechas negras), dos son evidentes (flechas rojas) a lo largo de la línea isoeléctrica. El intervalo QT prolongado relacionado con bradiarritmia, mejor medido en la derivación II, representa un mayor riesgo de torsades-de-pointes, una taquiarritmia ventricular polimórfica. Además, el bloqueo de la rama derecha del haz con inversiones de la onda T gigante (profundidad de la onda T> 10 mm) en las derivaciones precordiales V2- 4 sugiere hipertensión pulmonar. Después de la inducción, el ritmo cambia abruptamente a torsades-de-pointes ( Imagen B ), lo que requiere desfibrilación.

Humans , Arrhythmias, Cardiac , Scleroderma, Systemic , Electrocardiography , Tachycardia , Bradycardia , Bundle-Branch Block , Risk , Tachycardia, Ventricular , Atrioventricular Block , Hypertension, Pulmonary
Arq. bras. cardiol ; 116(3): 494-500, Mar. 2021. tab, graf
Article in Portuguese | LILACS | ID: biblio-1248856


Resumo Nos últimos anos, vários biomarcadores estão ganhando importância clínica na avaliação diagnóstica e prognóstica de pacientes com doenças cardiovasculares. O fator de crescimento e diferenciação celular-15 (GDF-15) é uma citocina induzida por estresse e inflamação, membro da família do TGF-, cuja produção no miocárdio foi demonstrada experimentalmente em resposta à injúria isquêmica ou sobrecarga cardíaca. Este novo marcador foi positivamente correlacionado com aumento do risco de eventos cardiovasculares em estudos populacionais e configurou-se preditor independente de mortalidade e prognóstico adverso em pacientes com doença arterial coronariana e insuficiência cardíaca. Este trabalho tem como objetivo revisar o valor diagnóstico e prognóstico do GDF-15 em diferentes cenários na cardiologia.

Abstract In the last years, several diagnostic and prognostic biomarkers have been studied in cardiovascular disease. Growth differentiation factor-15 (GDF-15), a cytokine belonging to the transforming growth factor- (TGF-) family, is highly up-regulated in stress and inflammatory conditions and has been correlated to myocardial injury and pressure cardiac overload in animal models. This new biomarker has been positively correlated with increased risk of cardiovascular events in population studies and shown an independent predictor of mortality in patients with coronary artery disease and heart failure. This review aimed to summarize the current evidence on the diagnostic and prognostic value of GDF-15 in different settings in cardiology.

Humans , Tachycardia, Ventricular/diagnosis , Algorithms , Diagnosis, Differential , Electrocardiography
Arq. bras. cardiol ; 116(3): 454-463, Mar. 2021. tab, graf
Article in Portuguese | LILACS | ID: biblio-1248868


Resumo Fundamento O diagnóstico diferencial de taquicardia de QRS largo, entre taquicardia ventricular (TV) ou taquicardia supraventricular com condução aberrante (TSV-A) é algumas vezes difícil de ser feito na sala de emergência. Objetivo Avaliar a acurácia de um algoritmo novo e simples para a detecção de TV no eletrocardiograma (ECG) em pacientes com taquicardia de QRS largo. Métodos ECGs de 12 derivações para detecção de taquicardia de QRS largo foram obtidos prospectivamente de 120 pacientes durante estudo eletrofisiológico. Seis médicos com diferentes experiências analisaram os ECGs, e fizeram o diagnóstico com base no algoritmo D12V16, que envolve a análise da polaridade predominante do complexo QRS nas derivações I, II, V1 e V6. O diagnóstico foi comparado com os obtidos pelo algoritmo tradicional de Brugada e pelo estudo eletrofisiológico, o qual é considerado padrão ouro. Adotou-se um nível de significância de 5% (p<0,05) nas análises estatísticas. Resultados De acordo com o estudo eletrofisiológico, 82 ECGs eram de TV e 38 de TSV-A. Doenças cardíacas estruturais estavam presentes em 71 (86,6%) dos pacientes com TV e em oito (21,1%) com TSV-A. O algoritmo de Brugada teve uma maior sensibilidade global (87,2%), enquanto o algoritmo D12V16 apresentou maior especificidade global (85,1%) para TV. Tanto o algoritmo D12V16 como o de Brugada apresentou um alto valor preditivo positivo (90,9% vs. 85,8%, respectivamente) e acurácia similar (73,8% vs. 81,4%, respectivamente) para o diagnóstico de TV. Nos avaliadores experientes, a acurácia foi maior utilizando o algoritmo de Brugada que o algoritmo D12V16, mas a acurácia dos dois algoritmos foi similar segundo os avaliadores menos experientes. Conclusão O algoritmo simplificado pode ser um método útil para reconhecer TV no ECG, principalmente para médicos menos experientes. (Arq Bras Cardiol. 2021; [online].ahead print, PP.0-0)

Abstract Background The differential diagnosis of wide QRS complex tachycardia (WCT) between ventricular tachycardia (VT) or supraventricular tachycardia with aberrant conduction (SVT-A) is sometimes difficult in the emergency room. Objective The aim of this study was to evaluate the accuracy of a new simple electrocardiographic algorithm to recognize VT in patients with wide complex tachycardia. Methods The 12-lead electrocardiograms (ECG) for WCT were prospectively obtained from 120 patients during electrophysiological study. Six physicians with different expertise analyzed the electrocardiographic recordings, and made the diagnosis based on the D12V16 algorithm, that involves the analysis of the predominant polarity of QRS in leads I, II, V1 and V6. The diagnosis was compared with that made using the traditional Brugada algorithm and the "gold-standard" electrophysiological study. Statistical analyses were performed with a significance level of 5% (p<0.05). Results According to the EPS study, 82 ECG recordings were VT and 38 SVT-A. Structural heart diseases were present in 71 (86.6%) patients with VT and in 8 (21.1%) with SVT-A. The Brugada algorithm had higher global sensitivity (87.2%), and the D12V16 algorithm had higher global specificity (85.1%) for VT. Both D12V16 and Brugada's algorithms presented a high positive predictive value (90.9% vs 85.8%, respectively) and similar accuracy (73.8% vs 81.4%, respectively) for the diagnosis of VT. Experienced evaluators were more accurate using Brugada algorithm than the D12V16 algorithm, but the accuracy of both algorithms was similar according to less experienced examiners. Conclusion The simplified algorithm may be a useful method to recognize VT in the ECG, especially for less experienced doctors. (Arq Bras Cardiol. 2021; [online].ahead print, PP.0-0)

Humans , Tachycardia, Supraventricular , Tachycardia, Ventricular/diagnosis , Algorithms , Sensitivity and Specificity , Diagnosis, Differential , Electrocardiography , Heart Rate
Rev. colomb. cardiol ; 28(1): 80-85, ene.-feb. 2021. tab, graf
Article in Spanish | LILACS, COLNAL | ID: biblio-1341264


Resumen El síndrome de QT largo representa un grupo de desórdenes electrofisiológicos cardiacos, caracterizados por la prolongación del intervalo QT, que se asocian a muerte súbita, taquicardias ventriculares y síncope. Se presenta el caso de dos familias con la descripción clínica de los afectados, el estudio genético y el respectivo manejo, y se hace una breve actualización de la literatura sobre el síndrome de QT largo.

Abstract Long QT syndrome represents a group of electrophysiologic disorders characterized by a prolongation in the QT interval that are associated with sudden death, ventricular tachycardia and syncope. We present 2 families describing the clinical presentation, the genetic study and their respective treatment also there is a brief review about long QT syndrome.

Humans , Female , Adolescent , Adult , Romano-Ward Syndrome , Syncope , Tachycardia, Ventricular , Death, Sudden
Chinese Journal of Cardiology ; (12): 615-620, 2021.
Article in Chinese | WPRIM | ID: wpr-941326


Objective: To investigate the clinical and electrophysiological features of ventricular tachycardia (VT) in tetralogy of Fallot (TOF) patients post surgical repair (rTOF) and to analyze the therapeutic effect and prognosis of radiofrequency ablation of rTOF-VT. Methods: This is a retrospective study. Consecutive patients with rTOF-VT, who were treated in Fuwai Hospital from January 2015 to March 2020, were enrolled. All the patients underwent right ventricular voltage mapping following routine cardiac electrophysiological examination, followed by linear or homogenizing radiofrequency ablation based on the low-voltage substrate. The clinical features, 3-dimentional electrophysiological substrate mapping, radiofrequency ablation and long-term prognosis of the enrolled patients were analyzed. Acute ablation success was defined as completion of linear or homogenizing ablation or intraoperative evoked VT as destination of the procedure. Patients were followed up at 3 and 6 months post operation and every year thereafter. The endpoints were sudden cardiac death (SCD) and recurrence of ventricular tachycardia. Results: A total of 20 patients with rTOF-VT were enrolled including 14 males with an age of (35.8±11.8) years. The electrocardiogram identified 23 types of ventricular tachycardia, 19 of which were originated from right ventricular inflow tract outlet. The most common clinical manifestations were heart murmur (19 cases, 95%) and syncope (4 cases, 25%). Electroanatomical substrate mapping was performed in 20 patients and evidenced localized or diffuse scar or low-voltage area of right ventricle. Intraoperative electrophysiological tests provoked ventricular tachycardia in 6 patients (30%), including 5 patients with hemodynamics disturbance. The acute success rate of radiofrequency ablation was 95% (19/20). The follow-up time was (31.1±17.7) months and the recurrence rate of ventricular tachycardia was 30% during follow-up period and 5 cases received repeat radiofrequency ablation and there was no recurrent ventricular tachycardia during follow-up post repeat radiofrequency ablation. Conclusions: The voltage substrate mapping under sinus rhythm is a feasible mapping method for rTOF-VT. Linear or flaky radiofrequency ablation of the slow conduction zone is safe and effective treatment strategy, the recurrence rate after the first radiofrequency ablation is still high, and the effectiveness of repeat radiofrequency ablation is satisfactory in this patient cohort.

Adult , Humans , Male , Middle Aged , Young Adult , Arrhythmias, Cardiac , Catheter Ablation , Electrocardiography , Follow-Up Studies , Retrospective Studies , Tachycardia, Ventricular/surgery , Tetralogy of Fallot/surgery , Treatment Outcome
ABC., imagem cardiovasc ; 34(3)2021. ilus, tab
Article in Portuguese | LILACS | ID: biblio-1292264


A cardiomiopatia arritmogênica do ventrículo direito é uma desordem hereditária caracterizada pela substituição fibrogordurosa do músculo cardíaco. O manejo clínico busca reduzir os riscos de morte súbita e melhorar a qualidade de vida, aliviando os sintomas arrítmicos e de insuficiência cardíaca. O ecocardiograma é o exame inicial para a investigação da cardiomiopatia arritmogênica do ventrículo direito, podendo apresentar dilatação das câmaras direitas e disfunção sistólica do ventrículo direito. Este relato chama atenção por envolver o diagnóstico de cardiomiopatia arritmogênica do ventrículo direito em paciente atleta. Mulher, 47 anos, maratonista, sem história familiar de morte súbita cardíaca, deu entrada na emergência com palpitação associada à pré-síncope. O eletrocardiograma da admissão mostrava taquicardia ventricular. O ecocardiograma revelou aumento de câmaras cardíacas direitas e disfunção sistólica do ventrículo direito. O cateterismo cardíaco não evidenciou doença coronária obstrutiva. A paciente foi orientada acerca da necessidade de suspensão de atividades físicas, porém, 3 meses depois, foi readmitida com instabilidade hemodinâmica por nova taquicardia ventricular, tendo sido cardiovertida. Realizou ressonância cardíaca, que evidenciou áreas de discinesia e formação de microaneurismas em ventrículo direito. Foi diagnosticada com cardiomiopatia arritmogênica do ventrículo direito, tendo sido com cardioversor desfibrilador implantável, amiodarona e betabloqueador. A diferenciação entre a cardiomiopatia arritmogênica do ventrículo direito e o coração do atleta representa um desafio, devido à sobreposição de alterações estruturais que coexistem nessas entidades, daí a importância da análise integrada de fatores clínicos, eletrocardiográficos e morfofuncionais.(AU)

Humans , Female , Middle Aged , Death, Sudden, Cardiac , Tachycardia, Ventricular/diagnosis , Arrhythmogenic Right Ventricular Dysplasia/genetics , Arrhythmogenic Right Ventricular Dysplasia/mortality , Heart Failure , Genetic Diseases, Inborn , Electric Countershock/methods , Echocardiography/methods , Magnetic Resonance Spectroscopy/methods , Electrocardiography, Ambulatory/methods , Heart Transplantation/methods , Defibrillators, Implantable , Catheter Ablation/methods , Electrocardiography/methods , Amiodarone/administration & dosage , Anti-Arrhythmia Agents/therapeutic use
Rev. guatemalteca cir ; 27(1): 79-81, 2021. ilus
Article in Spanish | LILACS, LIGCSA | ID: biblio-1373032


Introducción: El síndrome de Brugada es una condición genética rara, el diagnóstico se establece por un patrón electrocardiográfico en particular que se asocia a un riesgo de fibrilación ventricular y muerte súbita; Objetivo: Presentar un caso interesante de un paciente joven quién ingreso a quirófano con la impresión clínica de apendicitis aguda para realizar apendicetomía video laparoscópica. Durante el procedimiento presento múltiples episodios de taquiarritmias; desencadenando Fibrilación Ventricular de difícil manejo trans y post operatorio, debido a los medicamentos peri-operatorios, agresión quirúrgica y fiebre. Material y Métodos: Se documento y presentó un caso interesante; Presentación de Caso: Paciente masculino de 26ª, sin antecedentes médicos, con impresión clínica de apendicitis aguda ingresa a quirófano, durante el acto quirúrgico presenta arritmias, documentándose Fibrilación Ventricular con inestabilidad hemodinámica que amerito desfibrilación externa, revirtió a ritmo sinusal. Al concluir el acto quirúrgico, se realiza EKG, evidenciando supradesnivel del segmento ST en V1 y V2 e inversión de la onda T por lo que pasa a unidad de cuidados intensivos, sin reversión anestésica y con tubo orotraqueal. Paciente se monitoriza en UTI, se realiza EKG evidencia ritmo nodal. Se extuba a las 12h post operatorias y se traslada a cardiología en 48h donde establecen que paciente cursa con patrón de Brugada. Conclusiones: Con el creciente número de pacientes con trastornos de conducción heredadas que se presentan para cirugía no cardiaca que están en riesgo de muerte súbita; el éxito en el manejo peri, trans y post operatorio depende de un conocimiento detallado de estas condiciones. (AU)

Introduction: Brugada syndrome is a rare genetic condition, the diagnosis is established by a particular electrocardiographic pattern and is associated with a risk of ventricular fibrillation and sudden death; Objective: To present an interesting case of a young patient who enters the operating room with the clinical impression of acute appendicitis to perform laparoscopic appendectomy and that during the procedure present multiple episodes of tachyarrhythmias; triggering Ventricular Fibrillation, what causes him difficult trans and postoperative management, due to peri-operative medications, surgical aggression and fever. Material and Methods: An interesting case was documented and presented; Case Presentation: Male patient of 26 years old, without medical history, with clinical impression of acute appendicitis was admitted to the operating room, during the surgical act it presents arrhythmias, showing Ventricular Fibrillation with hemodynamic instability that warrants external defibrillation, reversed at sinus pace, EKG is performed showing elevation gain of the ST segment in V1 and V2 and inversion of the T wave at the end of the surgical act, so it goes to intensive care unit, without anesthetic reversal and with orotracheal tube. Patient is monitored in ICU, EKG shows nodal rhythm, extubates at 12h post op and at 48h was transferred to cardiology where they establish that patient studies suggest Brugada pattern; Conclusions: With the increasing number of patients with inherited driving disorders who present the thee for non-cardiac surgery who are at risk of sudden death; success in peri, trans and postoperative management depends on a detailed knowledge of these conditions. (AU)

Humans , Male , Adult , Brugada Syndrome/surgery , Brugada Syndrome/physiopathology , Appendicitis/complications , Ventricular Fibrillation/complications , Tachycardia, Ventricular/complications , Death, Sudden/etiology
Rev. chil. cardiol ; 39(3): 247-255, dic. 2020. tab
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1388061


Resumen: Se presentan tres casos clínicos de pacientes con en Enfermedad de Steinert y Taquicardia ventricular recurrente asociada. En los 3 casos el diagnóstico involucró un exhaustivo estudio electrofisiológico que demostró que se trataban de TV rama a rama. Se describen los mecanismos y las maniobras electrofisiológicas para establecer el diagnóstico, como también el tratamiento. Incluye una extensa revisión bibliográfica.

Abstract This is a report of three patients with Steinert´s disease who presented with ventricular tachycardia requiring electrical cardioversion. Extensive electrophysiologic study demonstrated an underlying bundle branch ventricular tachycardia. The mechanisms and the electrophysiological approach to diagnosis are described in detail and the treatment selected is discussed. An extensive review of the literature is included.

Humans , Male , Adult , Middle Aged , Tachycardia, Ventricular/surgery , Tachycardia, Ventricular/complications , Tachycardia, Ventricular/diagnosis , Myotonic Dystrophy/complications , Echocardiography , Treatment Outcome , Defibrillators, Implantable , Catheter Ablation , Electrocardiography
Rev. chil. cardiol ; 39(3): 261-265, dic. 2020. ilus
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1388063


Resumen Comunicamos el caso de un hombre de 56 años que ingresó por pericarditis aguda febril, probablemente de causa viral, que durante su evolución presentó una fibrilación auricular paroxística y taquicardia ventricular polimorfa recurrente. El análisis de la historia clínica y serie electrocardiográfica permitió el diagnóstico retrospectivo asociado de un síndrome de Brugada. Hubo buena respuesta inicial al tratamiento antiinflamatorio asociado a colchicina y se implantó un desfibrilador automático intracavitario para prevención de muerte súbita. Se discuten aspectos clínicos del síndrome de Brugada, la importancia de la fiebre y de la pericarditis como cuadro clínico asociado.

Abstract A 56-year-old patient was admitted for acute febrile pericarditis, probably viral, who presented with paroxysmal atrial fibrillation and recurrent polymorphic ventricular tachycardia during his clinical course. Analysis of the clinical and electrocardiographic findings allowed the retrospective diagnosis of Brugada syndrome in the context of pericarditis. An initial response to anti-inflammatory treatment associated with colchicine was good. An internal cardioverter defibrillator was implanted to prevent sudden death. Clinical aspects of the Brugada syndrome, the importance of fever and pericarditis as an associated clinical condition are discussed.

Humans , Male , Middle Aged , Pericarditis/complications , Pericarditis/diagnosis , Brugada Syndrome/complications , Brugada Syndrome/diagnosis , Atrial Fibrillation/etiology , Tachycardia, Ventricular/etiology , Electrocardiography
Rev. colomb. cardiol ; 27(6): 597-601, nov.-dic. 2020. graf
Article in Spanish | LILACS, COLNAL | ID: biblio-1289277


Resumen La taquicardia ventricular polimórfica catecolaminérgica es una enfermedad caracterizada por arritmias ventriculares desencadenadas por estrés o actividad física. Existen casos descritos de taquicardia ventricular polimórfica catecolaminérgica asociada a ventrículo izquierdo no compactado, en relación con mutaciones del gen RYR2 localizadas en el exón 3. Se expone el caso clínico de una paciente joven que debutó con clínica de síncopes recurrentes asociados a estrés físico o emocional. En el estudio posterior se descubrió taquicardia ventricular polimórfica catecolaminérgica, con áreas de miocardio no compactado y una nueva variante genética posiblemente asociada a la enfermedad.

Abstract Catecholaminergic polymorphic ventricular tachycardia is disease characterised by ventricular arrhythmias triggered by stress or physical activity. There are some cases of catecholaminergic polymorphic ventricular tachycardia described that are associated with non-compacted left ventricle in relation to mutations of the RYR2 gene located in exon 3. A case is presented of a young patient in whom the clinical signs started with recurrent syncope associated with physical or emotional stress. In the subsequent study, catecholaminergic polymorphic ventricular tachycardia was discovered, with areas of non-compacted myocardium and new genetic variant possibly associated with the disease.

Humans , Female , Adult , Tachycardia, Ventricular , Syncope , Heart Ventricles , Cardiomyopathies