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The effect of beat interval on ventricular repolarisation in atrial fibrillation (2019)
Conference Proceeding
Al-Karadi, M. S., Wilkinson, A. J., & Langley, P. (2019). The effect of beat interval on ventricular repolarisation in atrial fibrillation. doi:10.22489/CinC.2018.294

Atrial fibrillation (AF) is characterised by rapid beat interval changes. The aim of the study was to investigate the effect of such changes on ECG ventricular repolarisation characteristics. In 10 AF recordings beat averaging of lead V4 was used to... Read More

The atrial T wave: The elusive electrocardiographic wave exposed by a case of shifting atrial pacemaker (2016)
Journal Article
Langley, P., & Caldwell, J. (2016). The atrial T wave: The elusive electrocardiographic wave exposed by a case of shifting atrial pacemaker. Journal of Electrocardiology, 49(4), 557-559. https://doi.org/10.1016/j.jelectrocard.2016.05.003

The atrial T wave (Ta wave) is the body surface manifestation of atrial repolarisation and, unlike the P wave (atrial depolarisation), is little recognised. We report the case of a patient with shifting pacemaker which clearly demonstrates the effect... Read More

Recurring patterns of atrial fibrillation in surface ECG predict restoration of sinus rhythm by catheter ablation (2014)
Journal Article
Di Marco, L. Y., Raine, D., Bourke, J. P., & Langley, P. (2014). Recurring patterns of atrial fibrillation in surface ECG predict restoration of sinus rhythm by catheter ablation. Computers in biology and medicine, 54, 172-179. https://doi.org/10.1016/j.compbiomed.2014.09.005

Background Non-invasive tools to help identify patients likely to benefit from catheter ablation (CA) of atrial fibrillation (AF) would facilitate personalised treatment planning. Aim To investigate atrial waveform organisation through recurrence plo... Read More

Circadian variation of human ventricular fibrillation dominant frequency (2010)
Journal Article
Langley, P., MacGowan, G. A., & Murray, A. (2010). Circadian variation of human ventricular fibrillation dominant frequency. Resuscitation, 81(8), (950-955). doi:10.1016/j.resuscitation.2010.03.026. ISSN 0300-9572

Aim Circadian variation in human ventricular fibrillation (VF) dominant frequency is unknown. If present this would provide evidence of physiological influence on VF. The objective was to quantify the circadian variation in human VF dominant frequen... Read More