title: Dermatomyositis and supraventricular tachycardia.
abstract: BACKGROUND
  Dermatomyositis is an idiopathic inflammatory myopathy, often associated with an underlying malignancy. Its prevalence rate is approximately one per 100,000 in the general population, and is even rarer without evidence of a cancer. Dermatomyositis rarely involves myocardial muscle fibers, but has shown to be associated with cardiac arrhythmias.
  
  
  METHODS
  We present a case of a young female patient with known history of dermatomyositis who presented to hospital with a flare up of her disease. She also complained of paroxysms of palpitation. Telemetry monitoring revealed several episodes of paroxysmal supraventricular tachycardia with heart rate reaching up to 220 beats per minute.
  
  
  CONCLUSIONS
  Cardiac involvement in dermatomyositis is a very rare, but well known entity. Dermatomyositis patients with palpitations should be monitored on a Holter monitor, and appropriate therapy initiated if found to have a significant arrhythmia.
authors.affiliation: Department of Internal Medicine, Michigan State University, East Lansing, Michigan, USA. abhijeetdhoble@gmail.com.
authors.forename: Abhijeet
authors.initials: A
authors.lastname: Dhoble
authors.forename: Chethan
authors.initials: C
authors.lastname: Puttarajappa
authors.forename: Alan
authors.initials: A
authors.lastname: Neiberg