Document Detail

Transient loss of sensing and capture during coronary angiography in two patients with permanent pacemakers.
MedLine Citation:
PMID:  7700822     Owner:  NLM     Status:  MEDLINE    
Two cases of transient pacemaker failure to sense and capture during angiography are reported. This phenomenon is due to a transient increase in sensing and pacing thresholds beyond the pacemakers programmed settings. The underlying mechanism may be related to blood displacement, the electrochemical properties of the injectate, the high concentration of the contrast media, or a combination of these properties. Even though the chambers in which sensing and pacing loss occurred differed (ventricle in the first and atria in the second), the episode occurred repeatedly after injection of contrast media into the artery supplying the respective electrode-tissue interface. In pacemaker dependent patients, provisions for external pacing should be implemented prior to injection of contrast into the coronary arteries.
G Y Perry; V Parsonnet; R Werres; N C Flowers
Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Pacing and clinical electrophysiology : PACE     Volume:  18     ISSN:  0147-8389     ISO Abbreviation:  Pacing Clin Electrophysiol     Publication Date:  1995 Jan 
Date Detail:
Created Date:  1995-05-01     Completed Date:  1995-05-01     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  7803944     Medline TA:  Pacing Clin Electrophysiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  108-12     Citation Subset:  IM    
University of Southern California, Division of Cardiology, USC/LAC Medical Center.
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MeSH Terms
Contrast Media / adverse effects*
Coronary Angiography / adverse effects*
Heart Failure / physiopathology,  radiography
Middle Aged
Pacemaker, Artificial / adverse effects*
Reg. No./Substance:
0/Contrast Media

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