system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A patient with chest pain was brought to the hospital. He was diagnosed to be a case of myocardial infarction and was administered a thrombolytic immediately. However, his cardiac condition worsened and he died. He was diagnosed to be suffering from "cardiac reperfusion injury". Which of the following is an expected histological finding in his cardiac tissue?
assistant
The correct answer is  Restoration of blood flow to ischemic tissues can promote recovery of cells if they are reversibly injured. However, under ceain circumstances, when blood flow is restored to cells that have been ischemic but have not died, injury is paradoxically exacerbated and proceeds at an accelerated pace. This process is calledischemia-reperfusion injury. It is due to sudden influx of free radicals and Ca+2 Neutrophils are responsible for production of free radicals. Re-perfused blood is rich in calcium hence leads formation of contraction bands.