经过重新审视的半区块
Marcelo V Elizari1, Rafael S Acunzo, Marcela Ferreiro
1Division of Cardiology, Ramos Mejía Hospital, Urquiza 609, Buenos Aires C1221ADC, Argentina. elizarimv@fibertel.com.ar
Circulation
|March 7, 2007
概括
这项研究重新定义了左前后半阻塞的诊断标准,这在冠状动脉疾病和高血压中很常见. 了解半块对于准确的心电图解读和患者预后至关重要.
科学领域:
- 心脏病学 心脏病学
- 电子生理学 电子生理学
- 医学诊断 医学诊断 医学诊断
背景情况:
- 室内导电系统的三性质和半块概念于1968年建立.
- 自从最初描述半区块以来,取得的进展有限.
研究的目的:
- 审查和重新定义可靠的心电图和心脏向量图诊断标准,用于左前后半球块.
- 为了突出表达hemiblocks在诊断心肌梗塞,缺血和心室缩方面所带来的挑战.
主要方法:
- 审查现有的解剖学,病理学,电生理学和临床研究.
- 对心电图和矢量心脏图发现的分析.
- 展示示例病例和流行病学数据.
主要成果:
- 左前半阻塞在男性和老年人中更常见,通常与冠状动脉疾病和高血压有关.
- 在没有结构性心脏病的个体中,孤立的左前半阻塞可能会发生.
- 孤立的左后半球块是罕见的,通常与右捆-分支块联系在一起,并带有严重的预后.
结论:
- 精确诊断半心脏阻塞是必要的,以避免误解心电图.
- 冠状动脉疾病和高血压是导致半阻塞的主要原因.
- 左后半阻塞与右束枝阻塞相关,表明心房阻塞和亚当斯-斯托克斯发作的高风险.
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