Pseudo superior vena cava entrance block during sinus rhythm uncovered by continuous atrial pacing

Takayuki Sekihara; Daisetsu Aoyama; Tomoya Eguchi; Hiroyasu Uzui; Hiroshi Tada

doi:10.1002/joa3.12740

Pseudo superior vena cava entrance block during sinus rhythm uncovered by continuous atrial pacing

J Arrhythm. 2022 May 27;38(4):653-655. doi: 10.1002/joa3.12740. eCollection 2022 Aug.

Authors

Takayuki Sekihara¹, Daisetsu Aoyama¹, Tomoya Eguchi¹, Hiroyasu Uzui¹, Hiroshi Tada¹

Affiliation

¹ Department of Cardiovascular Medicine, Faculty of Medical Sciences University of Fukui Fukui Japan.

Abstract

Usually, superior vena cava (SVC) entrance block is confirmed when SVC potentials disappear during sinus rhythm. We present a case of pseudo SVC entrance block during sinus rhythm, which was uncovered by continuous atrial pacing.

Keywords: catheter ablation; electrocardiography; heart conduction system; sinoatrial node; superior; vena cava.