Thanks for writing to us.
1. Definitely A rise in troponin
usually mean damage to heart muscle. This usually correlated with complete or near complete occlusion of one of the vessels of the heart. I hope they must have correlated your angiograms (fresh and old) and current clinical status with troponin levels. However troponins do not remain elevated for months. It usually disappears by 10-14 days. hence the rise was recent only. There may be other reasons for the rise but they all are indicative of poor prognosis. These may be kidney
failure, recent chest or other infection, exacerbation of chronic bronchitis
The best person to decipher the exact cause is your cardiologist. You must talk to him and get an explanation for this rise.