Long-term follow-up of biopsy-proven acute myocarditis shows that early pseudoinfarction patterns resolve, while early conduction disturbances may persist, though long-term survival is favorable for those surviving the acute phase.
Answers are grounded in this paper and cite their sources.
Persistent conduction disturbances after acute myocarditis may warrant prolonged ECG surveillance; leaves open optimal monitoring strategies in larger cohorts.
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.
No takes yet. Share an insight, caveat, or question.
Take et al. (1982) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: