Inability to capture with increasing current strength: Is this near‐field or far‐field?

• Published in: Journal of cardiovascular electrophysiology Vol. 31; no. 4; pp. 960 - 963
• Main Authors: Liu, Fang‐Zhou, Liao, Hong‐Tao, Zhan, Xian‐Zhang, Shehata, Michael, Ehdaie, Ashkan, Chen, Qiu‐Fan, Wu, Shu‐Lin, Xue, Yu‐Mei, Wang, Xun‐Zhang
• Format: Journal Article
• Language: English
• Published: United States Wiley Subscription Services, Inc 01.04.2020
• Subjects: Action Potentials; Adult; bundle branch re‐entry; Bundle of His - physiopathology; Cardiac arrhythmia; Cardiac Pacing, Artificial; Diagnosis; Electrocardiography; Electrophysiologic Techniques, Cardiac; Entrainment; far‐field; Female; Heart; Heart Rate; Humans; near‐field; Predictive Value of Tests; Septum; Tachycardia; Tachycardia, Ventricular - diagnosis; Tachycardia, Ventricular - physiopathology; Time Factors; Ventricle; bundle branch re-entry; far-field; near-field; entrainment

We present a case of wide‐complex tachycardia in which the clinical electrophysiological diagnosis was considered to be bundle branch re‐entry ventricular tachycardia. A series of ventricular entrainment attempts were performed from the left and right ventricular septum to confirm the diagnosis. Ent...