title: A Difficult Case Of Left Atrial Flutter.
abstract: A 55-year-old male was referred for a third ablation procedure because of recurrent atrial fibrillation. During re-isolation of the inferior right pulmonary vein the patient developed an atypical flutter with an clockwise activation pattern around the mitral annulus. Linear ablation at the left mitral isthmus transformed but did not terminate the tachycardia. The cavotricuspid isthmus proved to be a second critical isthmus and linear ablation at this site terminated the tachycardia.
authors.affiliation: Arrhythmia Section, Cardiology Department, Thorax Institute, Hospital Clinic. Barcelona, Spain.
authors.forename: Reinder
authors.initials: R
authors.lastname: Evertz Md
authors.affiliation: Arrhythmia Section, Cardiology Department, Thorax Institute, Hospital Clinic. Barcelona, Spain.
authors.forename: Juan
authors.initials: J
authors.lastname: Acosta Md
authors.affiliation: Arrhythmia Section, Cardiology Department, Thorax Institute, Hospital Clinic. Barcelona, Spain.
authors.forename: David
authors.initials: D
authors.lastname: Andreu M Sc
authors.affiliation: Arrhythmia Section, Cardiology Department, Thorax Institute, Hospital Clinic. Barcelona, Spain.
authors.forename: Josep
authors.initials: J
authors.lastname: Brugada Md PhD
authors.affiliation: Arrhythmia Section, Cardiology Department, Thorax Institute, Hospital Clinic. Barcelona, Spain.
authors.forename: Lluis
authors.initials: L
authors.lastname: Mont Md PhD