An Irregular Wide Complex Tachycardia
| Autor: | G. Neal Kay, H. Thomas McElderry, Thomas E. Watts |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Tachycardia
medicine.medical_specialty Time Factors Action Potentials 030204 cardiovascular system & hematology Ventricular tachycardia Asymptomatic Electrocardiography 03 medical and health sciences QRS complex 0302 clinical medicine Heart Rate Physiology (medical) Internal medicine Palpitations medicine Humans cardiovascular diseases 030212 general & internal medicine Flecainide Aged Metoprolol business.industry medicine.disease Sodium Bicarbonate Anesthesia Tachycardia Ventricular cardiovascular system Cardiology Administration Intravenous Female Apixaban medicine.symptom Cardiology and Cardiovascular Medicine business Anti-Arrhythmia Agents medicine.drug |
| Zdroj: | Circulation. 136:773-775 |
| ISSN: | 1524-4539 0009-7322 |
| DOI: | 10.1161/circulationaha.117.029974 |
| Popis: | A 66-year-old woman with a history of hypertension and persistent atrial fibrillation was referred to the Arrhythmia Clinic. Before her visit, a routine 12-lead ECG was ordered (Figure 1). The patient was asymptomatic except for minor palpitations. Her medicine regimen included apixaban, flecainide 150 mg twice daily, lisinopril, loratadine, metoprolol, and simvastatin. Figure 1. Routine 12-lead ECG recorded before a clinic visit to the electrophysiology clinic. What is the cardiac rhythm and what should be the initial treatment? Please turn the page to read the diagnosis. The ECG shows a very wide QRS complex tachycardia (QRS duration 280 ms) with variation in morphology. Following a pause of 700 ms, there are repeating sequences of 6 to 7 beats with cycle lengths of 400 to 415 ms. A second ECG demonstrated that the QRS morphology changed from a right bundle-branch block type pattern to a left bundle-branch block type … |
| Databáze: | OpenAIRE |
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