Determination of myoglobin concentration in blood in the diagnosis of unstable (progressive) angina pectoris

: A survey of 180 patients with unstable angina pectoris has demonstrated that transient hypermyoglobinemia detected in 58% of patients is a more informative parameter than those obtained with electrographic and enzyme immunoassay used in the diagnosis of focal alterations in the heart muscle in the disease. Measurement of serum myoglobin levels by rapid radioimmunoassay in these patients is of predictive value as it allows a group of subjects at high risk for myocardial infarction to be identified.