Electrocardiographic manifestations: wide complex tachycardia due to accessory pathway.
Tachycardia with a wide QRS complex is usually due to ventricular tachycardia (VT), supraventricular tachycardia (SVT) with aberrant intraventricular conduction, or an accessory pathway-mediated dysrhythmia. The most common type of accessory pathway causing a wide complex tachycardia is the atrioventricular bypass tract. Distinguishing the accessory pathway-mediated tachycardia from VT or SVT with aberrancy is often difficult, but has important clinical consequences. This article will review the diagnosis of wide complex tachycardia due to an accessory pathway and its related management in the emergent setting.
Nelson
James A
JA
Department of Emergency Medicine, Medical Center, University of California-San Diego, 200 West Arbor Drive #8676, San Diego, CA 92103-8676, USA.
Knowlton
Kirk U
KU
Harrigan
Richard
R
Pollack
Marc L
ML
Chan
Theodore C
TC
D000328:Adult; D000638:Amiodarone / Q000627:therapeutic use; D000889:Anti-Arrhythmia Agents / Q000627:therapeutic use; D004554:Electric Countershock; D004562:Electrocardiography; D005260:Female; D006329:Heart Conduction System / Q000002:abnormalities*; D006801:Humans; D011342:Procainamide / Q000627:therapeutic use; D013610:Tachycardia / Q000175:diagnosis* / Q000209:etiology / Q000503:physiopathology / Q000628:therapy
D000889:Anti-Arrhythmia Agents; D011342:Procainamide; D000638:Amiodarone