tailieunhanh - Essential Cardiac Electrophysiology Self Assessment - Part 6

Cắt đốt bằng mà tại đó các trang web sau đây là có khả năng giải quyết các rối loạn nhịp tim. Phía sau bức tường của tâm thất bên phải đường thoát ra B lại tường vách ngăn tâm thất phải bức tường đường thoát ra Lateral C của LV chảy ra đường | 140 Essential Cardiac Electrophysiology 3 A 36-year-old man seeks your advice regarding frequent palpitations. Last week he was in the emergency room with one such episode. Electrocardiogram recorded during that episode is shown. Ablation at which of the following sites is most likely to resolve the arrhythmias. A Posterior free wall of the right ventricular outflow tract B Left septal wall of the right ventricular outflow tract C Lateral wall of the LV outflow tract D Left ventricular basal-septum 4 A previously healthy 30-year-old man has sudden onset of palpitations and lightheadedness while playing soccer. The pulse rate was 190 per minute and blood pressure is 100 58 mm Hg. The arrhythmia terminates spontaneously and he is brought to the hospital. Ventricular Tachycardia and Ventricular Fibrillation 141 Cardiac enzymes electrocardiogram echocardiogram and treadmill exercise electrocardiogram are normal. Recordings obtained during electrophysiologic study are shown below. Which of the following statements is most likely correct regarding this condition A Intravenous administration of verapamil may result in hemodynamic collapse B The tachycardia originates in the region of the left posterior fascicle C Left lateral accessory pathway ablation will terminate the tachycardia D An identical pace map is required for successful radiofrequency catheter ablation BUNDLE BRANCH REENTRY VENTRICULAR TACHYCARDIA 1 During electrophysiologic study a wide complex tachycardia is induced. The tracing is shown below. Which one of the following is likely to terminate and render tachycardia noninducible A AVN ablation B Ablation of the focus in RVOT C Ablation of the right bundle D Ablation of the atriofascicular pathway 142 Essential Cardiac Electrophysiology 2 Which one of the following conditions is unlikely to present with BBR-VT A Myotonic dystrophy B Hypertrophic cardiomyopathy C Ebstein anomaly D Brugada syndrome 3 Which one of the following observations is unlikely to .