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Development of PVT.
| Patient | Surgery | INR at PVT diagnosis | Mechanism of PVT |
Surgery to PVT Interval (years) |
|---|---|---|---|---|
| 1 | MVR | 2.1 | Thrombus | 0.3 |
| 2 | MVR | ? | Thrombus | 0.5 |
| 3 | AVR | 2.0 | Thrombus and Pannus | 9.1 |
| 4 | MVR | INR not done for > 8 months | Thrombus | 9.0 |
| 5 | MVR | INR not done for > 18 months | Thrombus | 15.0 |
Time from surgery to PVT: Mitral - 6.2 ± 7.3 years; All PVT cases - 6.8 ± 6.3 years. AVR - aortic valve replacement, MVR - mitral valve replacement, PVT - prosthetic valve thrombosis.
