Prolonged PR interval despite a programmed short sensed AV delay: the role of intra-atrial conduction time.
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.
2nd Department of Medicine, Faculty of Health Sciences, Semmelweis University, Budapest, Hungary. bohm@freemail.hu
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D002304:Cardiac Pacing, Artificial; D004562:Electrocardiography / Q000379:methods*; D005260:Female; D006325:Heart Atria / Q000503:physiopathology*; D006801:Humans; D007090:Image Interpretation, Computer-Assisted; D008875:Middle Aged; D013610:Tachycardia / Q000175:diagnosis* / Q000503:physiopathology