title: Wide complex tachycardia with cycle length alternans: what is the mechanism?
authors.affiliation: Montefiore Medical Center/Albert Einstein College of Medicine, Arrhythmia Service, Bronx, New York, USA. mmetzl@montefiore.org
authors.forename: Mark D
authors.initials: MD
authors.lastname: Metzl
authors.forename: Jay N
authors.initials: JN
authors.lastname: Gross
authors.forename: John D
authors.initials: JD
authors.lastname: Fisher
authors.forename: Andrew K
authors.initials: AK
authors.lastname: Krumerman
mesh_terms: D054537:Atrioventricular Block / Q000175:diagnosis* / Q000628:therapy; D002304:Cardiac Pacing, Artificial / Q000009:adverse effects*; D004562:Electrocardiography; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008875:Middle Aged; D008991:Monitoring, Physiologic / Q000379:methods; D018570:Risk Assessment; D012720:Severity of Illness Index; D013611:Tachycardia, Atrioventricular Nodal Reentry / Q000175:diagnosis* / Q000628:therapy*; D013617:Tachycardia, Supraventricular / Q000175:diagnosis* / Q000628:therapy