title: Pseudotermination of atrioventricular nodal reentrant tachycardia related to isorhythmic atrioventricular dissociation.
abstract: Unusual manifestations of the mode of termination were observed in a patient with atrioventricular nodal reentrant tachycardia (AVNRT). After administration of verapamil during AVNRT, isorhythmic atrioventricular dissociation occurred without termination of the tachycardia. The sinus rate was slightly faster than that of the AVNRT, leading to the P wave preceding the QRS complex with a normal PR interval (e.g., pseudotermination). This phenomenon emphasizes the importance of continuous monitoring during an attempt to terminate AVNRT.
authors.affiliation: Department of Internal Medicine and Cardiology, Tama-Nagayama Hospital, Nippon Medical School, Nagayama, Tama-shi, Tokyo, Japan. maru@nms.ac.j
authors.forename: Mitsunori
authors.initials: M
authors.lastname: Maruyama
authors.forename: Naomi
authors.initials: N
authors.lastname: Kawaguchi
authors.forename: Shinjiro
authors.initials: S
authors.lastname: Miyamoto
authors.forename: Takeshi
authors.initials: T
authors.lastname: Tadera
authors.forename: Takeshi
authors.initials: T
authors.lastname: Ino
authors.forename: Hirotsugu
authors.initials: H
authors.lastname: Atarashi
mesh_terms: D000328:Adult; D000889:Anti-Arrhythmia Agents / Q000627:therapeutic use; D004562:Electrocardiography; D005260:Female; D006801:Humans; D013611:Tachycardia, Atrioventricular Nodal Reentry / Q000188:drug therapy / Q000503:physiopathology*; D014700:Verapamil / Q000627:therapeutic use
chemical_list: D000889:Anti-Arrhythmia Agents; D014700:Verapamil