title: Catheter ablation of ventricular tachycardia induced by injection of acetylcholine in the right coronary artery.
abstract: We report the case of a patient who suffered from early morning nonsustained ventricular tachycardia. Clinical ventricular tachycardia without coronary spasm was reproducibly induced only by injection of acetylcholine in the right coronary artery. A good pace mapping site with 30 ms early ventricular activity was present in the right ventricular free wall. After radiofrequency ablation based on electroanatomical mapping, the tachycardia could no longer be induced by intracoronary injection of acetylcholine.
authors.affiliation: Department of Cardiology, Pulmonology, and Nephrology, Yamagata University School of Medicine, Yamagata, Japan. t-arimoto@med.id.yamagata-u.ac.jp
authors.forename: Takanori
authors.initials: T
authors.lastname: Arimoto
authors.forename: Tetsu
authors.initials: T
authors.lastname: Watanabe
authors.forename: Joji
authors.initials: J
authors.lastname: Nitobe
authors.forename: Isao
authors.initials: I
authors.lastname: Kubota
mesh_terms: D000109:Acetylcholine / Q000008:administration & dosage* / Q000627:therapeutic use*; D000368:Aged; D017115:Catheter Ablation / Q000379:methods*; D003331:Coronary Vessels / Q000187:drug effects / Q000502:physiology*; D005260:Female; D006801:Humans; D007269:Injections, Intra-Arterial; D017180:Tachycardia, Ventricular / Q000503:physiopathology / Q000628:therapy*
chemical_list: D000109:Acetylcholine