A regularly irregular tachycardia with variable QRS morphologies – What is the mechanism?
| Autor: | AndreiD. Margulescu, Dewi E. Thomas, James Barry |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
medicine.medical_specialty
Bundle-Branch Block 030204 cardiovascular system & hematology Electrocardiography 03 medical and health sciences QRS complex 0302 clinical medicine Heart Conduction System Tachycardia Internal medicine medicine Humans cardiovascular diseases 030212 general & internal medicine Atrioventricular Block Atrial tachycardia business.industry Right bundle branch block medicine.disease Irregular tachycardia Bundle Av conduction cardiovascular system Cardiology medicine.symptom Cardiology and Cardiovascular Medicine business |
| Zdroj: | Journal of Electrocardiology. 65:146-150 |
| ISSN: | 0022-0736 |
| Popis: | We present a complex ECG displaying a combination of atrial tachycardia with Mobitz type I AV block, and right bundle branch block (RBBB) alternans (RBBB alternating with normal QRS conduction) during Wenckebach cycle. A detailed explanation regarding the mechanism of this complex arrhythmia is provided, and the mechanism of bundle branch alternans is reviewed. A unique feature of our case is the added complexity given by the presence of atrial tachycardia and AV Wenckebach, which departs from the previous description of bundle branch alternans during 1:1 AV conduction. |
| Databáze: | OpenAIRE |
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