This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
Hibernating myocardium is 
Select and explain. 
A. irreversible, B. Recovery is spontaneous, C. Seen in chronic severe coronary stenosis, D. Mismatch between flow and function
C: Seen in chronic severe coronary stenosis
Answer: C: Seen in chronic severe coronary stenosis 
Explanation: Hibernating myocardium refers to a state of chronic reversible myocardial contractile dysfunction,  that is almost completely restored after myocardial repercussion. Recovery  occurs after revascularization,  not spontaneous. Acute coronary occlusion results in stunned myocardium.  Whereas chronic occlusion  results in hibernating myocardium.