Table 3: Analysis of Changes in the Degree of Tricuspid Regurgitation After Lead Extraction
TR Before Extraction TR After Extraction Number of Patients Percentage of 321 Patients Change in TR in Degrees
All patients with same or improved TV function (n, %) 0-3 0-3 237 73.8% 0-3
No change in TV function (153, 47.7%) 0 0 38 11.8% 0
1 1 74 23.1% 0
2 2 28 8.7% 0
3 3 13 4.0% 0
Non-significant (for 1 degree) improvement of TV function (68, 21.2%) 3 2 9 2.8% -1
2 1 34 10.6% -1
1 0 27 8.4% -1
Significant (for 2 or 3 degrees) improvement of TV function (16, 5.0%) 3 1 6 1.9% -2
2 0 10 3.1% -2
All patients with worsening TV function 0-3 1-3 84 26.2% 1-3
Non-significant (for 1 degree) worsening of TV function (76, 23.7%) 0 1 39 12.1% 1
1 2 27 8.4% 1
2 3 10 3.1% 1
Significant (for 2 or 3 degrees) worsening of TV function (8, 2.5%) 0 2 4 1.2% 2
1 3 4 1.2% 2