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Experimental Study About Removal of the Implanted Tined Polyurethane Ventricular Lead by Radiofrequency Waves Through the Lead
Author(s) -
EBE KATSUYA,
FUNAZAKI TOSHIKAZU,
AIZAWA YOSHIFUSA,
SHIBATA AKIRA,
FUKUDA TAKEAKI
Publication year - 1991
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/j.1540-8159.1991.tb02859.x
Subject(s) - medicine , polyurethane , lead (geology) , fixation (population genetics) , biomedical engineering , cardiology , composite material , materials science , population , environmental health , geomorphology , geology
Polyurethane pacemaker leads are: widely used nowadays. However, only a few studies have been done to investigate the fixation mechanism of polyurethane leads. To elucidate how pacemaker leads are fixed at the early phase after Implantation, polyurethane‐insulated fined ventricular leads were implanted in seven mongrel dogs. One to 4 months later. lips of the leads were anchored among the trabeculae and the distal part of the leads were encapsulated by whitish fibrous tissue. It was found that not organized thrombi, but cell reaction with various states of inflammatory cells was responsible for forming the fibrous tissue. We attempted to remove the lead In‐delivering radiofrequency wave through the lead. However, no lead could be removed.