The lead(site of ischemia), form and the lasting time of ST-T changed and the features of electrocardiography before occurrence of arrhythmia and sudden death in observed group were analyzed.
比较分析观察组ST-T改变导联（即缺血部位）、形态、持续时间，以及发作时的心律失常、猝死的心电图特点等。
The lead(site of ischemia), form and the lasting time of ST-T changed and the features of electrocardiography before occurrence of arrhythmia and sudden death in observed group were analyzed.
比较分析观察组ST-T改变导联（即缺血部位）、形态、持续时间，以及发作时的心律失常、猝死的心电图特点等。
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