Clinical Surveillance Of An Active Fixation, Bipolar, Polyurethane Insulated Pacing Lead .1. The Atrial Lead
PACE-PACING AND CLINICAL ELECTROPHYSIOLOGY(1994)
Abstract
Since 1989, 168 Telectronics model 330-801 active fixation, polyurethane insulated atrial leads (Accufix) have been implanted at the Mayo Clinic. There were four (2.4%) acute lead related complications, (i.e., perforation, microdislodgment, and pericarditis). Over a median follow-up time of 7.6 months (up to 2.7 years), there were 14 (8.3%) chronic complications, including 1 instance (0.6%) of definite lead failure. Most of these complications were early (within the first month) and transient. Four patients (2.4%) required reoperation for chronic complications. During follow-up, 23% of the examined patients had high pacing thresholds, most at about 3 months after implantation, necessitating high-output programming. The exact mechanism and natural history of this phenomenon should be further investigated.
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Key words
PACING LEADS, ATRIAL SCREW-IN LEADS, LEAD PERFORMANCE, LEAD SURVIVAL
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