Paroxysmal supraventricular tachycardia with QRS duration alternans, electrical alternans, and pulsus alternans but without cycle length alternans

Research output: Contribution to journalArticle

Abstract

We reported a 60-year-old male patient who had a paroxysmal supraventricular tachycardia with QRS duration alternans (alternation between narrow QRS and wide QRS beats) and electrical alternans, but without any cycle length alternans. In the laboratory, slow-fast atrioventricular nodal reentrant tachycardia was easily induced by an atrial extrastimulus, and the arterial pressure recordings displayed a simultaneous pulsus alternans during tachycardia. The patient also underwent coronary angiography which revealed a total occlusion of the left anterior descending artery. In this report, we have proposed that the QRS duration alternans, electrical alternans and pulsus alternans during the paroxysmal supraventricular tachycardiamay have been due to the prolongation of the effective refractory period of the right bundle branch, caused by myocardial ischemia.

Original languageEnglish
Pages (from-to)192-195
Number of pages4
JournalActa Cardiologica Sinica
Volume29
Issue number2
Publication statusPublished - Mar 2013

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Paroxysmal Tachycardia
Supraventricular Tachycardia
Pulse
Atrioventricular Nodal Reentry Tachycardia
Coronary Angiography
Tachycardia
Myocardial Ischemia
Arterial Pressure
Arteries

Keywords

  • Electrical alternans
  • Myocardial ischemia
  • Supraventricular tachycardia

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Cite this

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title = "Paroxysmal supraventricular tachycardia with QRS duration alternans, electrical alternans, and pulsus alternans but without cycle length alternans",
abstract = "We reported a 60-year-old male patient who had a paroxysmal supraventricular tachycardia with QRS duration alternans (alternation between narrow QRS and wide QRS beats) and electrical alternans, but without any cycle length alternans. In the laboratory, slow-fast atrioventricular nodal reentrant tachycardia was easily induced by an atrial extrastimulus, and the arterial pressure recordings displayed a simultaneous pulsus alternans during tachycardia. The patient also underwent coronary angiography which revealed a total occlusion of the left anterior descending artery. In this report, we have proposed that the QRS duration alternans, electrical alternans and pulsus alternans during the paroxysmal supraventricular tachycardiamay have been due to the prolongation of the effective refractory period of the right bundle branch, caused by myocardial ischemia.",
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T1 - Paroxysmal supraventricular tachycardia with QRS duration alternans, electrical alternans, and pulsus alternans but without cycle length alternans

AU - Chen, Wei Ta

AU - Cheng, Ho Shun

AU - Huang, Jen Hung

AU - Hsieh, Ming Hsiung

PY - 2013/3

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N2 - We reported a 60-year-old male patient who had a paroxysmal supraventricular tachycardia with QRS duration alternans (alternation between narrow QRS and wide QRS beats) and electrical alternans, but without any cycle length alternans. In the laboratory, slow-fast atrioventricular nodal reentrant tachycardia was easily induced by an atrial extrastimulus, and the arterial pressure recordings displayed a simultaneous pulsus alternans during tachycardia. The patient also underwent coronary angiography which revealed a total occlusion of the left anterior descending artery. In this report, we have proposed that the QRS duration alternans, electrical alternans and pulsus alternans during the paroxysmal supraventricular tachycardiamay have been due to the prolongation of the effective refractory period of the right bundle branch, caused by myocardial ischemia.

AB - We reported a 60-year-old male patient who had a paroxysmal supraventricular tachycardia with QRS duration alternans (alternation between narrow QRS and wide QRS beats) and electrical alternans, but without any cycle length alternans. In the laboratory, slow-fast atrioventricular nodal reentrant tachycardia was easily induced by an atrial extrastimulus, and the arterial pressure recordings displayed a simultaneous pulsus alternans during tachycardia. The patient also underwent coronary angiography which revealed a total occlusion of the left anterior descending artery. In this report, we have proposed that the QRS duration alternans, electrical alternans and pulsus alternans during the paroxysmal supraventricular tachycardiamay have been due to the prolongation of the effective refractory period of the right bundle branch, caused by myocardial ischemia.

KW - Electrical alternans

KW - Myocardial ischemia

KW - Supraventricular tachycardia

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