Cardiac troponin I in patients with acute lower limb ischemia
2007
The presence, cause, and clinical significance of elevated cardiac troponin I in patients with acute lower limb ischemia is yet unknown. Forty-six patients (20 men [43%]; mean age 72 ± 10 years, range 42 to 92) with acute lower limb ischemia were enrolled in this study. Serial creatine kinase (CK), CK isoenzyme MB (CK-MB), and troponin I measurements were obtained in all consecutive patients. Peak levels were evaluated for each patient. Twenty-four patients (52%) had elevated peak troponin I levels (>0.2 ng/ml) during their hospitalization. Patients were divided into 3 groups according to their peak troponin I levels: 11 patients (24%) had peak troponin I levels >1 ng/ml (the high troponin I group), 13 (28%) had levels of 0.2 to 1 ng/ml (the intermediate troponin I group), and the remaining 22 (48%) had peak troponin I levels
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