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Prolonged PR interval despite a programmed short sensed AV delay: the role of intra-atrial conduction time
12nd Department of Medicine, Faculty of Health Sciences, Semmelweis University, Budapest, Hungary. bohm@freemail.hu
Abstract:
Intracavitary electrogram (IEGM) is a useful tool in the interpretation of difficult pacemaker electrograms. A case of 320 ms P-V spike interval on the surface ECG despite a 110 ms programmed sensed AV delay is presented. Atrial IEGM revealed atrial tachycardia with a significant atrial conduction delay.