Table 2.
Clinical data-classification according to the occurrence of LDTVD.
| Patient-Related Potential Risk Factors of LDTVD | LDTVD (All Patients with LDTVD) | NO LDTVD (Control Group) | |||
|---|---|---|---|---|---|
| Number of patients/number of the group | 119 | 1 | 2559 | 2 | p |
| Presented values | Count/average | %/Sd | Count/average | %/Sd | 1 vs. 2 |
| Patient’s age during TLE | 68.09 | 15.05 | 66.90 | 14.52 | 0.087 |
| Patient’s age during first system implantation | 58.43 | 18.96 | 58.32 | 16.18 | 0.485 |
| Sex (% of female patients) | 67 | 56.30% | 995 | 38.88% | 0.001 |
| Baseline heart diseases: IHD, MI | 69 | 57.98% | 1494 | 58.38% | 0.995 |
| Baseline heart diseases: primary cardiomyopathy | 13 | 10.92% | 343 | 13.40% | 0.562 |
| Baseline heart diseases: valvular heart disease | 10 | 8.40% | 59 | 2.31% | 0.001 |
| Baseline heart diseases: post-inflammatory, congenital, channelopathies, neurocardiogenic, unknown | 27 | 22.69% | 662 | 25.87% | 0.566 |
| NYHA class I–IV | 2.20 | 0.80 | 1.84 | 0.67 | <0.001 |
| AF permanent | 50 | 42.02% | 565 | 22.08% | 0.001 |
| Hypertension | 66 | 55.46% | 1487 | 58.11% | 0.777 |
| Diabetes (any) | 21 | 17.65% | 534 | 20.87% | 0.515 |
| Renal failure (any) | 34 | 28.57% | 538 | 21.02% | 0.052 |
| Valvular implant presence | 83 | 18.49% | 156 | 6.10% | 0.001 |
| Mechanical valve presence | 15 | 12.61% | 15 | 3.59% | 0.001 |
| Previous sternotomy | 24 | 20.17% | 359 | 14.03% | 0.07 |
| Long-term anticoagulation | 73 | 61.35% | 1000 | 39.08% | 0.001 |
| Charlson’s index (points) | 4.99 | 3.56 | 4.83 | 3.69 | 0.352 |
Abbreviations: AF—atrial fibrillation, IHD—ischaemic heart disease, MI—myocardial infarction, LDTVD—lead dependent tricuspid valve dysfunction, NYHA class—New York Hear Association class, TLE—transvenous lead extraction. Valvular implant: mechanical valve, biological valve, mitral o tricuspid ring.