troponin i?

Question

What other disease entity do you expect elevation of troponin i aside from myocardial infarction or heart attack?

Answer 1

Usually not elevated unless MI, bad CHF or endocarditis

Answer 2

It is important to note that cardiac troponins are a marker of all heart muscle damage, not just myocardial infarction. Other conditions that directly or indirectly lead to heart muscle damage can also therefore increase troponin levels:
Non-cardiac:
* Critical illness, e.g. sepsis
* High-dose chemotherapy
* Primary pulmonary hypertension
* Pulmonary embolism
* Renal failure
* Subarachnoid hemorrhage
* Scorpion venom
* Stroke
* Very heavy exercise (marathon)
Please see the web pages for more details on Troponin.

Answer 3

Cardiac enzyme studies measure the levels of the enzymes troponin (TnI, TnT) and creatine phosphokinase (CPK, CK) in the blood. Low levels of these enzymes are normally found in your blood, but if your heart muscle is injured, such as from a heart attack, the enzymes leak out of damaged heart muscle cells and their levels in the bloodstream rise.

Because some of these enzymes are also found in other body tissues, their levels in the blood may rise when those other tissues are damaged. Cardiac enzyme studies must always be compared with your symptoms, your physical examination findings, and electrocardiogram (EKG, ECG) results.

Other muscle damage may throw off the results.

Answer 4

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