All had suffered a type of heart attack known as an ST segment elevation myocardial infarction, caused by a prolonged period of blocked blood supply.

他们都遭受ST段抬高心肌梗死(STEMI)的心脏病发作，是由于长期血管阻塞引起的。

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Result:The shapes of ST segment elevation showed the regularity of concave straight convex type as the prolongation of ischemic time.

结果：ST段抬高的形态随心肌缺血时间的延长而呈“下弧形—上斜形—上弧形”的规律性变化。

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Objective To investigate the diagnostic value of B-type natriuretic peptide (BNP) in the acute myocardial infarction (AMI) patients with chest pain but without ST-segment elevation.

目的：评价B型尿钠肽(BNP)对伴急性胸痛但心电图无st段抬高的急性心肌梗死(ami)患者的诊断价值。

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Objective To investigate the diagnostic value of B-type natriuretic peptide (BNP) in the acute myocardial infarction (AMI) patients with chest pain but without ST-segment elevation.

目的：评价B型尿钠肽(BNP)对伴急性胸痛但心电图无st段抬高的急性心肌梗死(ami)患者的诊断价值。

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