title: Reciprocating supraventricular tachycardia initiated by paired premature beats.
mesh_terms: D005117:Cardiac Complexes, Premature / Q000150:complications* / Q000503:physiopathology; D004562:Electrocardiography; D006325:Heart Atria / Q000503:physiopathology; D006352:Heart Ventricles / Q000503:physiopathology; D012849:Sinoatrial Node / Q000503:physiopathology; D013614:Tachycardia, Paroxysmal / Q000209:etiology* / Q000503:physiopathology