Clinical surveillance of an active fixation, bipolar, polyurethane insulated pacing lead, Part I: The atrial lead.
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.
Glikson
M
M
Division of Cardiovascular Diseases and Internal Medicine, Mayo Clinic, Rochester, Minnesota 55905.
von Feldt
L K
LK
Suman
V J
VJ
Hayes
D L
DL
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002304:Cardiac Pacing, Artificial; D004553:Electric Conductivity; D017097:Electric Impedance; D004567:Electrodes, Implanted / Q000009:adverse effects / Q000706:statistics & numerical data; D004867:Equipment Design; D004868:Equipment Failure; D004869:Equipment Safety; D005260:Female; D005500:Follow-Up Studies; D006325:Heart Atria; D006801:Humans; D008297:Male; D008875:Middle Aged; D008910:Minnesota / Q000453:epidemiology; D010138:Pacemaker, Artificial / Q000009:adverse effects / Q000706:statistics & numerical data*; D011140:Polyurethanes; D011159:Population Surveillance; D015996:Survival Rate; D013686:Telemetry; D013997:Time Factors
D011140:Polyurethanes