Blood oxygen saturation during atrio-ventricular dissociation with wide-QRS complex tachycardias

G Marinskis, Gregory Lip, A Adietis, P Jurkuvenas, D Kaireviciute, V Jezov, K Bagdonas, P Serpytis, A Laucevicius

Research output: Contribution to journalArticle

1 Citation (Scopus)


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 SpO(2) adjacent peak amplitudes, in contrast to patients with aberrant SVTs and 1 : 1 AV association. Application of a criterion of adjacent SpO(2) 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. (c) 2005 Elsevier Ireland Ltd. All rights reserved.
Original languageEnglish
Pages (from-to)134-135
Number of pages2
JournalInternational Journal of Cardiology
Issue number1
Publication statusPublished - 1 Feb 2006


  • atrio-ventricular dissociation
  • non-invasive monitoring
  • regular wide-QRS complex tachycardias
  • mixed blood oxygen saturation


Dive into the research topics of 'Blood oxygen saturation during atrio-ventricular dissociation with wide-QRS complex tachycardias'. Together they form a unique fingerprint.

Cite this