Key result
Clinical surveillance of Telectronics model 330-801 atrial leads showed 2.4% acute and 8.3% chronic complications over a median 7.6 months, with 23% of patients developing high pacing thresholds.
Why the study?
What is the complication rate and performance of the Telectronics model 330-801 active fixation atrial pacing lead?
Observational (n=168)
No
What is the complication rate and performance of the Telectronics model 330-801 active fixation atrial pacing lead?
The Telectronics model 330-801 atrial lead showed a 2.4% acute complication rate, an 8.3% chronic complication rate, and a 23% incidence of high pacing thresholds requiring high-output programming.
May warrant enhanced surveillance for this lead; leaves open need for comparative long-term studies.
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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Glikson et al. (1994) conducted an observational in Pacemaker implantation (n=168). Telectronics model 330-801 active fixation atrial leads was evaluated on Chronic complications. Clinical surveillance of Telectronics model 330-801 atrial leads showed 2.4% acute and 8.3% chronic complications over a median 7.6 months, with 23% of patients developing high pacing thresholds.
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