Results:
A total of 321 patients underwent extraction of a total of 338 leads
across the TV (1.05 ± 0.31 leads across the TV per patient). There was
no significant difference in average TR grade pre- and post-extraction
(1.18 ± 0.91 vs. 1.15 ± 0.87; p=0.79). TR severity increased after
extraction in 84 patients, but was classified as significantly worse
(i.e. > 1 grade change in severity) in only 8 patients
(2.5%). Use of laser lead extraction was associated with a higher rate
of worsening TR post-extraction (44.0% vs. 31.6%, p=0.04).