title: Negative lead I P waves during anteroseptal accessory pathway orthodromic reciprocating tachycardia.
abstract: Although a negative retrograde P wave in lead I during orthodromic reciprocating tachycardia is thought to indicate a left free wall accessory pathway, we describe similar negative P waves in lead I during orthodromic reciprocating tachycardia through anteroseptally situated accessory pathways.
authors.affiliation: CHU de Bordeaux, Hôpital Cardiologique du Haut-Lévêque, Bordeaux-Pessac, France.
authors.forename: D C
authors.initials: DC
authors.lastname: Shah
authors.forename: P
authors.initials: P
authors.lastname: Jaïs
authors.forename: M
authors.initials: M
authors.lastname: Haïssaguerre
authors.forename: A
authors.initials: A
authors.lastname: Takahashi
authors.forename: J
authors.initials: J
authors.lastname: Clémenty
mesh_terms: D000328:Adult; D017115:Catheter Ablation; D003937:Diagnosis, Differential; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D013611:Tachycardia, Atrioventricular Nodal Reentry / Q000175:diagnosis; D013614:Tachycardia, Paroxysmal / Q000175:diagnosis / Q000503:physiopathology* / Q000601:surgery