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zheng jie 40: da an
Pages: 379
Year: 2013
Issue:
5
Journal: Journal of Clinical Electrocardiology
Keyword: 房性心动过速; 起搏心电图; 体表心电图; 起搏模式; 混乱性; 心室起搏; 心室率; 起搏心律; 征解; 起搏脉冲;
Abstract: <正>征解40答案:1.混乱性房性心动过速;2.V V(I D D)I起搏心电图诊断要点:1.V V(I D D I)起搏心电图:从征解图可知本例患者心电图存在两种心室律,一种是明显的心室起搏心律(图A、B中箭头指示),其起搏间期规整,V V间期860m(s70ppm),而在自主的Q R S波后,则以1000m(s60ppm)的滞后间期发放下次心室起搏脉冲,提示其为V V I起搏模式且心室起搏与感知功能均正常。但心室起搏的Q R S波前无固定的PR间期,又知患者植入的是双腔IC D,故V V I起搏模式是D D D模式发生了模式转
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