Population
905 unipolar polyurethane pacing leads implanted between April 1978 and February 1982
Design
Case_series
Follow-up
mean 1.4 years
Authors
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Alerts clinicians to insulation failure risk with Medtronic 6991 U leads; hypothesis-generating and should not yet change practice.
Unipolar polyurethane pacing leads, particularly the Medtronic 6991 U, are susceptible to insulation failure due to environmental stress cracking.
BYRD et al. (1983) studied this question.
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