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  2. Keyword: Tachycardia,Ventricular
Figure 1
IJCS
Case Report

Cardiac Arrest and Exercise-Induced Polymorphic Ventricular Tachycardia: An Elusive Diagnosis

Nestor Rodrigues de Oliveira et al. William Santos de Oliveira Adalberto Atsushi Porto Fabio Mastrocola … Ana Eloisa Novaes Roberto Moreno Mendonça Júlio César Vieira de Sousa

Introduction

Polymorphic ventricular tachycardia (VT) is defined as a rapid rhythm with continuously changing ventricular activation. In the absence of QT interval prolongation, its evaluation is a challenging activity with a series of differential diagnoses. The present study reports on a case of a young man who had an out-of-hospital cardiac arrest and and who later presented an episode of exercise-induced polymorphic VT. A rational investigation is discussed based on the patient’s clinical findings and baseline ECG.

[…]

  • Death, Sudden, Cardiac
  • Diagnosis
  • Exercise Induced
  • Tachycardia,Ventricular
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Creative Commons Attribution (CC BY) Creative Commons license
22/01/2021 DOI: 10.36660/ijcs.20190162 Views 1
Figure 1
ABC
Viewpoint

QT Interval Control to Prevent Torsades de Pointes during Use of Hydroxychloroquine and/or Azithromycin in Patients with COVID-19

Tan Chen Wu et al. Luciana Sacilotto Francisco Carlos da Costa Darrieux Cristiano Faria Pisani … Sissy Lara de Melo Denise Tessariol Hachul Mauricio Scanavacca

Introduction

In December 2019, the first cases of the novel coronavirus disease (COVID-19) were reported in Wuhan, China. Since the pandemic designation in March 2020 by the World Health Organization (WHO), with intercontinental spread of the disease, we are intensely seeking for a safe and effective treatment.

In vitro studies have demonstrated some effect of chloroquine against the new coronavirus, mediated by the glycosylation of SARS-CoV cell receptors and by increased endosomal pH, blocking cell invasion by the virus. In addition to this antiviral activity, chloroquine, which is traditionally an immunomodulator, has shown to be promising for treatment of pneumonia that installs approximately one week after onset of symptoms.

[…]

  • Arrhythmias
  • Coronavirus/complications
  • COVID-19, Pandemics
  • Hydroxychloroquine/therapeutic, use
  • Tachycardia,Ventricular
  • Torsades Pointes
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Creative Commons Attribution (CC BY) Creative Commons license
03/07/2020 DOI: 10.36660/abc.20200389
Figure 1
IJCS
Case Report

Isolated Non-Compacted Myocardium: Should We Consider the Presence of Extrasystoles as the Initial Manifestation?

Erivelton Alessandro do Nascimento et al. Raphaella Nagib Carvalho Santos Fernanda Fraga Tolomelli Dutra Maria Gabriela Inocente Vitório

Abstract

Ventricular non-compaction occurs due to failure in myocardial morphogenesis during the fetal period. Patients can have heart failure, as well as systemic complications due to thromboembolism and cardiac arrhythmias. Early diagnosis is essential. We present the case of an asymptomatic 49-year-old woman who initially manifested ventricular extrasystoles and heart failure with reduced ejection fraction and a myocardial noncompaction diagnosis.

  • Arrhythmias Cardiac
  • Diagnostic Imaging
  • Heart Failure
  • Isolated Noncompaction of the Ventricular Myocardium
  • Tachycardia,Ventricular
Read Full Article
Creative Commons Attribution (CC BY) Creative Commons license
07/03/2019 DOI: 10.5935/2359-4802.20190002

How to cite this article

EndNote RIS

Electronic Document Format (Vancouver)

Oliveira NR, Oliveira WS, Porto AA, Mastrocola F, Novaes AE, Mendonça RM, Sousa JCV, et al. Cardiac Arrest and Exercise-Induced Polymorphic Ventricular Tachycardia: An Elusive Diagnosis. International Journal of Cardiovascular Sciences 2021;34(5):593-6.

Electronic Document Format (ABNT)

Oliveira, Nestor Rodrigues de; Oliveira, William Santos de; Porto, Adalberto Atsushi; Mastrocola, Fabio; Novaes, Ana Eloisa; Mendonça, Roberto Moreno; Sousa, Júlio César Vieira de. Cardiac Arrest and Exercise-Induced Polymorphic Ventricular Tachycardia: An Elusive Diagnosis. International Journal of Cardiovascular Sciences, v. 34, n. 5, p. 593-596, Jan. 2021.

Electronic Document Format (APA)

Oliveira, N. R. , Oliveira, W. S. , Porto, A. A., Mastrocola, F., Novaes, A. E., Mendonça, R. M., & Sousa, J. C. V. (2021). Cardiac Arrest and Exercise-Induced Polymorphic Ventricular Tachycardia: An Elusive Diagnosis. International Journal of Cardiovascular Sciences, 34(5), 593-596.

Electronic Document Format (ISO)

Oliveira, Nestor Rodrigues de and Oliveira, William Santos de and Porto, Adalberto Atsushi and Mastrocola, Fabio and Novaes, Ana Eloisa and Mendonça, Roberto Moreno and Sousa, Júlio César Vieira de. Cardiac Arrest and Exercise-Induced Polymorphic Ventricular Tachycardia: An Elusive Diagnosis. International Journal of Cardiovascular Sciences [online]. 2021, vol. 34, n. 5, [cited 2026-10-14], pp. 593-596. Available from: <https://journals.cardiol.br/en/article/cardiac-arrest-and-exercise-induced-polymorphic-ventricular-tachycardia-an-elusive-diagnosis/>. ISSN 2359-4802

EndNote RIS

Electronic Document Format (Vancouver)

Wu TC, Sacilotto L, Darrieux FCC, Pisani CF, Melo SL, Hachul DT, Scanavacca M, et al. QT Interval Control to Prevent Torsades de Pointes during Use of Hydroxychloroquine and/or Azithromycin in Patients with COVID-19. Arquivos Brasileiros de Cardiologia 2020;114(6):1061-6.

Electronic Document Format (ABNT)

Wu, Tan Chen; Sacilotto, Luciana; Darrieux, Francisco Carlos da Costa; Pisani, Cristiano Faria; Melo, Sissy Lara de; Hachul, Denise Tessariol; Scanavacca, Mauricio. QT Interval Control to Prevent Torsades de Pointes during Use of Hydroxychloroquine and/or Azithromycin in Patients with COVID-19. Arquivos Brasileiros de Cardiologia, v. 114, n. 6, p. 1061-1066, Jul. 2020.

Electronic Document Format (APA)

Wu, T. C., Sacilotto, L., Darrieux, F. C. C., Pisani, C. F., Melo, S. L. , Hachul, D. T., & Scanavacca, M. (2020). QT Interval Control to Prevent Torsades de Pointes during Use of Hydroxychloroquine and/or Azithromycin in Patients with COVID-19. Arquivos Brasileiros de Cardiologia, 114(6), 1061-1066.

Electronic Document Format (ISO)

Wu, Tan Chen and Sacilotto, Luciana and Darrieux, Francisco Carlos da Costa and Pisani, Cristiano Faria and Melo, Sissy Lara de and Hachul, Denise Tessariol and Scanavacca, Mauricio. QT Interval Control to Prevent Torsades de Pointes during Use of Hydroxychloroquine and/or Azithromycin in Patients with COVID-19. Arquivos Brasileiros de Cardiologia [online]. 2020, vol. 114, n. 6, [cited 2026-10-14], pp. 1061-1066. Available from: <https://journals.cardiol.br/en/article/qt-interval-control-to-prevent-torsades-de-pointes-during-use-of-hydroxychloroquine-and-or-azithromycin-in-patients-with-covid-19/>. ISSN 0066-782X

EndNote RIS

Electronic Document Format (Vancouver)

Nascimento EA, Santos RNC, Dutra FFT, Vitório MGI. Isolated Non-Compacted Myocardium: Should We Consider the Presence of Extrasystoles as the Initial Manifestation?. International Journal of Cardiovascular Sciences 2019;32(3):293-6.

Electronic Document Format (ABNT)

Nascimento, Erivelton Alessandro do; Santos, Raphaella Nagib Carvalho; Dutra, Fernanda Fraga Tolomelli; Vitório, Maria Gabriela Inocente. Isolated Non-Compacted Myocardium: Should We Consider the Presence of Extrasystoles as the Initial Manifestation?. International Journal of Cardiovascular Sciences, v. 32, n. 3, p. 293-296, Mar. 2019.

Electronic Document Format (APA)

Nascimento, E. A. , Santos, R. N. C., Dutra, F. F. T., & Vitório, M. G. I. (2019). Isolated Non-Compacted Myocardium: Should We Consider the Presence of Extrasystoles as the Initial Manifestation?. International Journal of Cardiovascular Sciences, 32(3), 293-296.

Electronic Document Format (ISO)

Nascimento, Erivelton Alessandro do and Santos, Raphaella Nagib Carvalho and Dutra, Fernanda Fraga Tolomelli and Vitório, Maria Gabriela Inocente. Isolated Non-Compacted Myocardium: Should We Consider the Presence of Extrasystoles as the Initial Manifestation?. International Journal of Cardiovascular Sciences [online]. 2019, vol. 32, n. 3, [cited 2026-10-14], pp. 293-296. Available from: <https://journals.cardiol.br/en/article/isolated-non-compacted-myocardium-should-we-consider-the-presence-of-extrasystoles-as-the-initial-manifestation/>. ISSN 2359-4802

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