Which is the best biomarker to detect reinfarction in MI-CPK MB or cTn?

Which is the best biomarker to detect reinfarction in MI-CPK MB or cTn?

It’s cTnI only.

20% rise within 3 hours is suggestive of re infarction.

However according to a source, before 72 hours, CK-MB should be chosen; which I am not sure about.

CK MB if reinfarction after 72 hrs, because CK MB levels usually return to normal levels by 3 days.

Other wise, if within 3 days, cTropI showing more than 20% rise above baseline is preferred.