title: Atrial tachycardia, 2:1 alternate Wenckebach periodicity, and atrial standstill.
abstract: A case of atrial tachycardia, 2:1 alternate Wenckebach periodicity and atrial standstill is reported in an 80-year-old woman who complained of exertional dyspnea and occasional syncope for two years. Two blocked P' waves appeared after each Wenckebach period suggesting type B alternating Wenckebach phenomenon (Mobitz type II 2:1 A-V block distal, and Wenckebach conduction proximal).
authors.affiliation: Shanghai Sixth People's Hospital, China.
authors.forename: W C
authors.initials: WC
authors.lastname: Chen
authors.forename: Z R
authors.initials: ZR
authors.lastname: Zeng
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D004562:Electrocardiography; D005260:Female; D006325:Heart Atria / Q000503:physiopathology; D006327:Heart Block / Q000503:physiopathology*; D006801:Humans; D010507:Periodicity; D012804:Sick Sinus Syndrome / Q000503:physiopathology*; D013617:Tachycardia, Supraventricular / Q000503:physiopathology*