Fig. 1From: Postoperative supraventricular tachycardia and polymorphic ventricular tachycardia due to a novel SCN5A variant: a case report of a rare comorbidity that is difficult to diagnoseInitial tachycardia attack and the time-dependent progression of cardiac conduction defect in the patient, a 41-year-old male. a 12-lead ECGs of the first tachycardia event and the sinus rhythm. b ECGs recorded 20 years after the patient’s ASD closureBack to article page