myocytolysis of heart

n.
  1. Local loss of myocardial syncytium as a result of a metabolic imbalance, insufficient in intensity or duration to cause stromal injury or to elicit an inflammatory reaction.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.