title: Right ventricular monophasic action potential during quinidine induce marked T and U waves abnormalities.
abstract: An unusual case with quinidine induced marked T and U waves abnormalities of giant size and alternans occuring in sinus rhythm is reported. Right ventricular monophasic action potential recorded during bizzare T and U waves abnormalities showed a marked prolongation of its duration and regressed after the drug was withdrawn.
mesh_terms: D000200:Action Potentials; D001145:Arrhythmias, Cardiac / Q000139:chemically induced*; D001281:Atrial Fibrillation / Q000628:therapy*; D004554:Electric Countershock; D004562:Electrocardiography; D005260:Female; D006352:Heart Ventricles; D006801:Humans; D008875:Middle Aged; D008946:Mitral Valve Stenosis / Q000601:surgery; D011183:Postoperative Complications; D011802:Quinidine / Q000009:adverse effects* / Q000627:therapeutic use
chemical_list: D011802:Quinidine