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J波综合征 被引量:7

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摘要 心电图上J点是指QRS波群与ST段交界处的一个突发性转折点,它标志着心室除极的结束、复极的开始。J点之后的顿挫称为J波。由瞬时外向钾电流介导的J波,是许多临床综合征如Brugada综合征、原发性室颤和早期复极综合征的心电图标志。J波的细胞和离子流机制在Brugada综合征,原发性室颤,甚至ST抬高的心肌梗死所致的心源性猝死的发生中发挥着重要作用。因此,把这些临床综合征称为J波综合征。深入了解J波综合征的内在机制对猝死的预防有重要意义。
出处 《实用诊断与治疗杂志》 2008年第5期360-362,共3页 Journal of Practical Diagnosis and Therapy
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