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Resuscitation. 2003 May;57(2):171-7.

Clinical significance of measurement of plasma annexin V concentration of patients in the emergency room.

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  • 1Department of Clinical Laboratory Medicine, Dokkyo University School of Medicine, 880 Kitakobayashi, Mibu, Tochigi 321-0293, Japan. ryukom@dokkyomed.ac.jp


Annexin V, a calcium-binding protein, is widely present in various organs and tissues. In the present study, plasma annexin V concentration was measured in 158 patients who were brought to the emergency room, including 25 patients suffering from acute myocardial infarction (AMI), 14 with cerebrovascular disease, 11 with trauma of the extremities, 11 with severe trauma associated with visceral damage, and 35 with witnessed cardiac arrest. Annexin V concentration in normal healthy individuals (n=110) was 1.9+/-0.7 ng/ml. Annexin V concentration in AMI and cardiac arrest patients was 11.0+/-4.9 and 15.3+/-7.9 ng/ml, respectively, being significantly higher than that in patients with cerebrovascular disease (5.4+/-2.7 ng/ml). The value in severe trauma patients was 15.9+/-9.4 ng/ml, being significantly higher than that in patients with trauma of the extremities (5.6+/-1.2 ng/ml). Annexin V concentrations in the cardiac arrest and AMI patients who survived more than 24 h after admission were lower than those in patients who died within 24 h after the onset of symptoms. Annexin V content in the lungs and myocardium in normal rats was extremely high in comparison to that in brain and skeletal muscle. These results suggest that the high levels of plasma annexin V in patients with AMI, cardiac arrest and severe trauma reflect the severity of damage of the myocardium and/or other visceral organs, and measurement of plasma annexin V concentration may help to assess the prognosis of patients brought to the emergency room.

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