Population
1 78-year-old man with intermittent heart block requiring cardiac pacing
Design
Case_report
Follow-up
12 months
Authors
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Heavy generators risk late lead retraction if unanchored; this case leaves open optimal fixation strategies.
Heavyweight pacemaker pulse generators can migrate downward and cause late electrode retraction and failure of capture if not properly anchored.
G. E. Kim (1974) studied this question.
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