title: Tachycardia-induced cardiomyopathy.
abstract: BACKGROUND
  Tachycardia-induced cardiomyopathy (TIC) is a rare cause of dilated cardiomyopathy (DCMP). The diagnosis can be missed because tachycardia is a common symptom in DCMP.
  
  
  METHODS
  We reviewed a case 5-year-old with palpitation and dyspnea with symptoms and signs of heart failure that diagnosed as DCMP initially. Then, in the evaluation for cause of tachycardia, atrial tachycardia was detected. Hence, treatment with flecainide was started and after 3 months, left ventricular (LV) systolic function and symptoms of the patient was relieved.
  
  
  CONCLUSIONS
  TIC should be suspected in all patients with unexplained LV dysfunctions in the setting of a persistent tachyarrhythmia.
authors.affiliation: Assistant Professor, Department of Pediatrics AND Isfahan Cardiovascular Research Center, Isfahan Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran.
authors.forename: Alireza
authors.initials: A
authors.lastname: Ahmadi
authors.affiliation: Pediatric Cardiology Fellowship, Department of Pediatrics, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
authors.forename: Ali
authors.initials: A
authors.lastname: Zolfi-Gol
authors.affiliation: General Practitioner, Isfahan Cardiovascular Research Center, Isfahan Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran.
authors.forename: Mahfar
authors.initials: M
authors.lastname: Arasteh
keywords: Dilated Cardiomyopathy; Heart Failure; Tachyarrhythmia