A man with two pacemakers: the mystery of the electrocardiogram
Yingchun Hu1*, Xiaoyu Chen2*, Hui
Huang1, Weiming Luo1,Yisheng
Zhou1, Xingkao Chen1, Guoping
Liu1, Hanping Zhang1#
1Department of Cardiology, Guangzhou Development
District Hospital, 196 Youyi Road, Huangpu District, Guangzhou 510730,
Guangdong, China
2Department of Nephrology, Rheumatism and Immunology,
Chongqing Jiulongpo People’s Hospital, Chongqing, 400050, China
* These authors have contributed equally to this work and were both the
first authors.
# The author is the corresponding author.
# Correspondence to : Hanping Zhang
E-mail: zhanghp0931@163.com
Mail to: Department of Cardiology, Guangzhou Development District
Hospital, 196 Youyi Road, Huangpu District, Guangzhou 510730, Guangdong,
China
Key words: electrocardiogram, pacemaker, battery depletion,
pacing spikes, His bundle pacing
Key Clinical Message
The increasing growth in the elderly population and expanding
indications for pacemaker use have led to a progressive rise in the
number of pacemaker implants. As the number of pacemaker implants
continues to grow, the demand for pacemaker replacements also increases.
Therefore, regular follow-up and timely detection of pacemaker issues
are particularly important. Our findings reported a confusing but
interesting clinical practice. In our study, three spike signals are
observed during stable pacing periods, with fixed spikes occurring
during in AV delay at 180 ms intervals, excluding other operation types
such as CRT and His bundle pacing.