A 2:1 atrioventricular block presenting paradoxical ventriculophasic response.
Takashi NakashimaKeita SuzukiTakahisa IdoMakoto YamauraShigekiyo TakahashiTakuma AoyamaPublished in: Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc (2019)
Ventriculophasic response (VR) is defined as the shortening of the sinus cycle length in the setting of greater than second-degree atrioventricular (AV) block. Typically, the PP intervals interposing a QRS complex are shorter than those without a QRS complex. Paradoxical VR is a rare clinical entity. We report about an 80-year-old man presenting with a 2:1 AV block, in whom typical and paradoxical VRs were observed.