title: Tako-tsubo cardiomyopathy complicating left atrial radiofrequency ablation.
abstract: Two female patients undergoing left atrial radiofrequency catheter ablation developed Tako-tsubo cardiomyopathy. This reversible form of left ventricular dysfunction is known to occur under conditions associated with marked sympathetic nervous activation. Radiofrequency catheter ablation in the left atrium can damage autonomic ganglionated plexi, leading to vagal withdrawal, thus resulting in enhanced sympathetic tone. Tako-tsubo cardiomyopathy has not been previously described following radiofrequency catheter ablation.
authors.affiliation: Medical University of Vienna, Department of Cardiology, Austria. michael.derntl@meduniwien.ac.at
authors.forename: Michael
authors.initials: M
authors.lastname: Derntl
authors.forename: Gregory W
authors.initials: GW
authors.lastname: Woo
authors.forename: Marianne
authors.initials: M
authors.lastname: Gwechenberger
authors.forename: Gerald
authors.initials: G
authors.lastname: Mundigler
authors.forename: Manfred
authors.initials: M
authors.lastname: Marx
authors.forename: Bernhard
authors.initials: B
authors.lastname: Richter
authors.forename: Heinz D
authors.initials: HD
authors.lastname: Gössinger
authors.forename: Mario D
authors.initials: MD
authors.lastname: Gonzalez
mesh_terms: D000368:Aged; D001281:Atrial Fibrillation / Q000601:surgery; D009202:Cardiomyopathies / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy; D017115:Catheter Ablation / Q000009:adverse effects*; D005260:Female; D006325:Heart Atria / Q000601:surgery*; D006801:Humans; D008875:Middle Aged; D013612:Tachycardia, Ectopic Atrial / Q000601:surgery; D016896:Treatment Outcome; D018487:Ventricular Dysfunction, Left / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy