title: [Instable block of the left branch and with paroxysmal onset. Treatment with beta-adrenergic blockaders (1 case)].
mesh_terms: D000319:Adrenergic beta-Antagonists / Q000627:therapeutic use*; D002037:Bundle-Branch Block / Q000188:drug therapy* / Q000503:physiopathology; D004562:Electrocardiography; D006329:Heart Conduction System / Q000503:physiopathology; D006339:Heart Rate; D006801:Humans; D008297:Male; D008875:Middle Aged; D010101:Oxygen Consumption; D011342:Procainamide / Q000627:therapeutic use; D013614:Tachycardia, Paroxysmal / Q000188:drug therapy* / Q000503:physiopathology
chemical_list: D000319:Adrenergic beta-Antagonists; D011342:Procainamide
vernacular_title: Blocco di branca sinistra instabile e ad insorgenza parossistica. Trattamento con bloccanti beta adrenergici (1 caso)