The predictive value of CKMB mass concentration in unstable angina pectoris: preliminary report

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Abstract
Unstable angina pectoris is a common clinical problem, and the diagnosis is based on clinical symptoms. However, these symptoms cannot identify high-risk patients. Holter monitoring can identify patients at high risk, but analysis of a large number of patients is time- and resource-consuming, as is angiographic examination. We determined whether creatine kinase MB isoenzyme mass concentration could predict the prognosis for patients with unstable angina pectoris. A total of 101 consecutive patients were studied, and blood samples were collected three times a day for 48 h after admission. Patients with unstable angina and elevated CKMB (but still within the normal range) had a significantly higher risk of developing acute myocardial infarction or requiring revascularization during 6 months of follow-up than patients without elevated CKMB. We conclude that CKMB analysis is a valuable tool that may be of use in selecting high-risk patients with unstable angina pectoris. This finding needs to be confirmed by more extensive studies.

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