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急性肺栓塞诱发缺血性J波1例

材料写作网    时间: 2021-08-07 04:06:49     阅读:


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[摘要] 缺血性J波是近年提出的一种心肌严重缺血时伴发的超急期缺血性心电图改变,可由伴有急性心肌缺血的多种临床症状引起,但继发于急性肺栓塞者未见报道。本病例以呼吸困难及持续性低血压为主要表现入院,后经肺动脉CT造影等确诊为急性肺栓塞、心源性休克。住院第3天心电图V2~V6导联出现一过性J波和与之伴发的持续性进行性T波倒置。究其原因,经动态观察心肌酶谱、心电图等,结合冠脉造影排除了非ST段抬高型心肌梗死、Wellens综合征及肺栓塞等疾病,认为其心电图改变为急性继发性缺血缺氧性心肌损伤导致的缺血性J波和以持续性T波倒置为表现的心肌顿抑。缺血性J波不仅提示急性心肌缺血的存在,也是发生恶性心律失常及猝死的新预警指标,及时识别具有重要临床意义。

[关键词] 缺血性J波;急性心肌缺血;急性冠脉综合征;急性肺栓塞;心源性休克;Wellens综合征;心肌顿抑

[中图分类号] R563.5;R443+.8 [文献标识码] B [文章编号] 1673-9701(2017)14-0141-03

[Abstract] Ischemic J wave is a ischemic ECG change in the hyperacute period associated with myocardial severe ischemia, which is proposed in recent years, and can be caused by a variety of clinical conditions accompanied by acute myocardial ischemia.While there is no report on ischemic J wave secondary to acute pulmonary embolism. The patient in this case was admitted in hospital with breathing difficulty and persistent hypotension as the main manifestation.Then the patient was diagnosed with acute pulmonary embolism and cardiogenic shock by pulmonary artery CT angiography. On the third day of hospitalization, a transient J wave and the persistently progressive T wave inversion appeared in ECG V2-V6 lead. The reason was explored,and the clinical conditions such as non-ST-elevation myocardial infarction, Wellens syndrome and pulmonary embol...

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