Long-term follow-up of electrocardiographic findings in patients with acute myocarditis proven by endomyocardial biopsy

Jpn Circ J. 1982 Nov;46(11):1227-34. doi: 10.1253/jcj.46.1227.


Sixteen cases of acute myocarditis, proven by endomyocardial biopsy, of possible viral origin which were described in a previous paper have been followed up for up to 5 years. The cases were divided into 3 groups according to the electrocardiographic (ECG) patterns: with conduction disturbance at the early stage (Group I, 9 cases), without conduction disturbance (Group II, 4 cases); early death cases in which the follow-up could not be carried out (Group III, 3 cases). In Group I, 2 cases revealed persistent complete A-V block, 4 showed incomplete recovery of right bundle branch and/or fascicular blocks, and 3 showed complete recovery of the ECG abnormalities. In Group II, all 4 cases showed a pseudoinfarction pattern which consisted of abnormal Q waves, poor R wave progression and ST elevation. These findings disappeared during the follow-up period. All patients of Groups I and II are still alive after a follow-up period of up to 5 years.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acute Disease
  • Adolescent
  • Adult
  • Aged
  • Biopsy
  • Child
  • Child, Preschool
  • Electrocardiography*
  • Endocardium / pathology*
  • Female
  • Follow-Up Studies
  • Humans
  • Infant
  • Male
  • Middle Aged
  • Myocarditis / diagnosis*
  • Myocarditis / pathology