title: Twin perimitral atrial flutters with alternating cycle lengths.
authors.affiliation: Hôpital Cardiologique du Haut Lévêque and Université Victor Segalen Bordeaux II, Bordeaux, Pessac, France. mdconeill@btinternet.com
authors.forename: Mark D
authors.initials: MD
authors.lastname: O'Neill
authors.forename: Mélèze
authors.initials: M
authors.lastname: Hocini
authors.forename: Seiichiro
authors.initials: S
authors.lastname: Matsuo
authors.forename: Michel
authors.initials: M
authors.lastname: Haïssaguerre
mesh_terms: D000368:Aged; D001282:Atrial Flutter / Q000175:diagnosis* / Q000628:therapy*; D018780:Body Surface Potential Mapping; D002304:Cardiac Pacing, Artificial; D017115:Catheter Ablation; D004562:Electrocardiography; D006801:Humans; D008297:Male; D012086:Reoperation; D016896:Treatment Outcome