Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 4 of 4 for “"P-wave duration"”.
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P-wave electrical alternans as an indicator of paroxysmal atrial fibrillation
P-wave electrical alternans is a beat to beat alternation in the morphology of the P-wave, the wave in an electrocardiogram corresponding to atrial depolarization. In this investigation, software to measure p-wave alternans was developed and then tested on simulated data and on real data previously …
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Secundum atrial septal defect in the adult. Clinical, haemodynamic and electrophysiological aspects.
… by means of high-resolution orthogonal P-wave signal-averaged ECG (II and III). P-wave duration was significantly longer in ASD patients than in controls and overall, it was not significantly affected by ASD closure. P-wave duration did not relate to echocardiographic atrial sizes, …
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Atrial Conduction and P-wave Characteristics: From histology to electrophysiology
P-wave morphology reflects the projection of the depolarization vector on the electrocardiogram (ECG)lead axes in three-dimentional space and reflects both right and left atrial activation. The main purpose of current thesis was to explore the internal logic between the atrial conduction …
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Left Atrial Posterior Wall Isolation in the Treatment of Atrial Fibrillation
… rises to significant reductions in surface ECG P wave duration and dispersion which are associated with better ablation outcomes, possibly due to autonomic modulation. The benefits of hybrid ablation come at a cost of complications, however. Newer catheter ablation technologies such as …