The Korean Journal of Medicine

The Korean Association of Internal Medicine (대한내과학회)
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Diagnosis of Narrow QRS Tachycardia

좁은 QRS 빈맥의 진단

  • Pil-Sung Yang (Division of Cardiology, Department of Internal Medicine, CHA Bundang Medical Center, CHA University)
  • 양필성 (차의과학대학교 분당차병원 심장내과)
  • Received : 2024.07.22
  • Accepted : 2024.07.30
  • Published : 2024.08.01
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Abstract

Narrow QRS tachycardia is a common clinical condition characterized by a heart rate exceeding 100 beats per minute and a QRS complex duration of less than 120 ms. This article provides an overview of the diagnostic approach to narrow QRS tachycardia, focusing on the differentiation between various supraventricular tachycardias, such as atrioventricular nodal reentrant tachycardia (AVNRT), atrioventricular reentrant tachycardia (AVRT), atrial tachycardia (AT), and sinus tachycardia. The discussion includes an analysis of the presenting symptoms, electrocardiographic (ECG) findings, and the use of vagal maneuvers and pharmacological agents in diagnosis.

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References

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