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起搏的宽QRS波与左心功能关系研究 被引量:2

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摘要 目的:探讨右室起搏QRS波时限(pQRS)与左心功能的关系。方法入选67例右室起搏患者,进行心功能分级,测量术前、术后即刻、末次随访起搏的QRS波时限,测量术前、术后左室射血分数(LVEF)、左室舒张末内径(LVEDd),分析pQRS与LVEF、LVEDd及临床症状间的关系。结果平均随访15~48个月,19.4%出现明显心力衰竭, pQRS<180 ms与≥180 ms相比,整个随访期间pQRS≥180 ms组心力衰竭发生率明显增高,末次随访时pQRS≥180 ms组较pQRS<180 ms组LVEF显著降低、LVEDd显著增加(P〈0.05)。结论右室起搏QRS波时限的延长与左心功能受损的发生密切相关, pQRS时限可以作为左心功能受损的预测指标。
作者 孔印琢
出处 《中国实用医药》 2013年第36期129-130,共2页 China Practical Medicine
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