Catheter ablation of ventricular tachycardia induced by injection of acetylcholine in the right coronary artery.
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.
Arimoto
Takanori
T
Department of Cardiology, Pulmonology, and Nephrology, Yamagata University School of Medicine, Yamagata, Japan. t-arimoto@med.id.yamagata-u.ac.jp
Watanabe
Tetsu
T
Nitobe
Joji
J
Kubota
Isao
I
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*
D000109:Acetylcholine