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目的探讨逸搏QRS波形态多变的原因。方法通过常规心电图及动态心电图对12例QRS波形态多变的逸搏及逸搏心律图形特征的心电图资料进行分类,根据QRS波形态学特征以及QRS波之间的内在联系,确定其起源及心电异常,从而明确其产生原因。结果导致逸搏QRS波形态多变的原因包括:①存在两种及两种以上起源;②伴有时相性和非时相性室内差异性传导;③比例不等室性融合波;④伴间歇性束支、分支阻滞或伴束支文氏现象;⑤存在逸搏节律点游走。结论确定QRS波形态多变的逸搏及逸搏心律的形成原因,对于评价各种传导障碍的性质及临床诊治具有重要的参考价值。
Objective To investigate the causes of vaginal changes of QRS waveform in esophageal aneurysms. Methods The electrocardiogram (ECG) data of 12 patients with QRS waveforms were analyzed by conventional electrocardiogram (ECG) and dynamic electrocardiogram (ECG), and their origin and heart were determined according to the morphological characteristics of QRS and the intrinsic relationship between QRS waves Abnormal electricity, so as to clarify its causes. As a result, the causes of esophageal changes of QRS wave pattern include: (1) there are two or more origins; (2) there are indifferent temporal indoors and non-phasic indoors; (3) Branch, branch block or tied Branch Wen phenomenon; ⑤ escape rhythm walking point. Conclusion It is important for the evaluation of the nature of various conduction disorders and clinical diagnosis and treatment to determine the causes of the change of QRS waveforms and escape rhythm.