---
abstract: 'The 12-lead ECG shows sequential atrial and ventricular pacing (Figure 1A). A tracing, obtained simultaneously during pacemaker interrogation, disclosed pacemaker functioning as VDD mode (Figure 1B). The careful examination of this pacemaker tracing showed that there is a pacing stimulus before each P wave (compatible with DDD mode). This paradox can only be explained by displacement of the temporary pacing lead to right atrium and right atrial stimulation by temporary pacemaker. In this setting, each temporary pacemaker-induced atrial depolarization is tracked by the right atrial lead of the permanent pacemaker as intrinsic P wave. Fluoroscopic study confirmed this explanation (Figure 2). The displaced temporary pacing lead was seen near the lateral right atrial wall. Temporary pacemaker lead had been inserted before replacement of permanent pacemaker. '
altloc:
- http://www.ipej.org/0602/alasti.htm
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creators_name:
- family: Alasti
given: Mohammad
honourific: ''
lineage: ''
- family: Haghjoo
given: Majid
honourific: ''
lineage: ''
- family: Alizadeh
given: Abolfath
honourific: ''
lineage: ''
- family: Sadr-Ameli
given: Mohammad Ali
honourific: ''
lineage: ''
date: 2006-04
date_type: published
datestamp: 2006-04-01
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dir: disk0/00/00/48/07
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editors_id: []
editors_name:
- family: Singh
given: Balbir
honourific: ''
lineage: ''
- family: Lokhandwala
given: Yash
honourific: ''
lineage: ''
- family: Francis
given: Johnson
honourific: ''
lineage: ''
- family: Gupta
given: Anup
honourific: ''
lineage: ''
- family: Ghosh
given: Joydeep
honourific: ''
lineage: ''
eprint_status: archive
eprintid: 4807
fileinfo: /style/images/fileicons/text_html.png;/4807/1/alasti.htm|/style/images/fileicons/application_pdf.png;/4807/2/alasti.pdf
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keywords: "Concealed malfunction; temporary pacemaker\n"
lastmod: 2011-03-11 08:56:22
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metadata_visibility: show
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number: 2
pagerange: 133-134
pubdom: TRUE
publication: Indian Pacing and Electrophysiology Journal
publisher: Indian Pacing and Electrophysiology Group
refereed: TRUE
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reportno: ~
rev_number: 14
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status_changed: 2007-09-12 17:02:44
subjects:
- ipej
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thesistype: ~
title: Concealed Malfunction of The Temporary Pacemaker
type: journalp
userid: 4424
volume: 6