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Chapter-75 Wide QRS Tachycardias Diagnosis and Management

BOOK TITLE: Textbook of Cardiology (A Clinical & Historical Perspective)

Author
1. Singhal R
2. Jaswal A
ISBN
9789350900819
DOI
10.5005/jp/books/12259_75
Edition
1/e
Publishing Year
2013
Pages
7
Author Affiliations
1. Heart and General Hospital, Jaipur, Rajasthan, India
2. Escorts Heart Institute and Research Centre, New Delhi, India
Chapter keywords
tachycardia, supraventricular tachycardia (SVT), ventricular tachycardia (VT), electrocardiogram, etiology, electrophysiology of ventricular tachycardia, QRS tachycardia, sinus rhythm

Abstract

When confronted with a tachycardia having a broad QRS complex, it is important to differentiate between a supraventricular tachycardia (SVT) and a ventricular tachycardia (VT). Medication given for the treatment of a SVT may be harmful to a patient with a VT. Electrocardiogram should not only tell how to distinguish VT from other tachycardias with a broad QRS complex, but also to suspect its etiology and its site of origin in the ventricle. Classification of tachycardias with a broad QRS complex, electrophysiology of ventricular tachycardia, criterias to differentiate wide QRS tachycardia, and etiology of ventricular tachycardia are discussed. Value of the electrocardiogram during sinus rhythm, value and limitations of the electrocardiogram in broad QRS tachycardia, management of wide QRS tachycardia are explained.

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