Blood oxygen saturation during atrio-ventricular dissociation with wide-QRS complex tachycardias
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- 作者：Germanas Marinskis ; Gregory Y.H. Lip ; Audrius Adietis ; Paulius Jurkuvė ; nas ; Diana Kairevič ; iū ; tė ; Vladimir Jež ; ov ; Kę ; stutis Bagdonas ; Pranas Š ; erpytis and Aleksand
- 关键词：Non-invasive monitoring ; Mixed blood oxygen saturation ; Atrio-ventricular dissociation ; Regular wide-QRS complex tachycardias
- 刊名：International Journal of Cardiology
- 出版年：2006
- 出版时间：8 February 2006
- 年：2006
- 卷：107
- 期：1
- 页码：134-135
- 全文大小：66 K
文摘
Amplitude ratios of two adjacent mixed blood oxygen saturation curve peaks in randomly selected strips of ECG were analysed in 32 patients with regular wide-QRS complex tachycardias and 60 control subjects where pacing was performed before ablation of narrow-QRS complex tachycardias. Patients with VT showed different patterns of A-to-V relationships, leading to varying ratios of SpO2 adjacent peak amplitudes, in contrast to patients with aberrant SVTs and 1 : 1 AV association. Application of a criterion of adjacent SpO2 peaks differing by twofold or more had a sensitivity of 90.0 % and specificity of 83.3 % to detect AV dissociation during VT. Fluctuations on the mixed oxygen saturation curve may be a useful non-invasive clinical parameter to detect different ventricular filling caused by atrio-ventricular dissociation during VT.