13th International Congress
THE "NEW FRONTIERS"
OF ARRHYTHMIAS 1998

January 24-31, 1998
Marilleva, Trento, Italy

RT-12

Third degree (advanced) interatrial block

A. Bayés de Luna, J. Guindo, X. Viñolas, A. Martinez-Rubio, A. Bayés-Genís.
Hospital Santa Creu i Sant Pau, Barcelona, Spain

Electrophysiological concept

P. Puech as early as 19541 demonstrated thanks to a combination of surface ECG and oesophageal leads that the morphology of wide P wave with morphology in II, III and VF was seen in case of advanced interatrial block and was explained by a craneocaudal vector of activation of right atrium followed by a caudocraneal activation of a left atrium (Fig. 1C). Later isolated cases and short series2-5 were published of this type of interatrial block. Different authors also confirmed by oesophageal ECG and electrophysiologically the retrograde activation of left atria.

Key Words

Third degree interatrial block
paroxysmal tachyrrhythmias, medical treatment, synchronous biatrial pacing, R

 

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