TABLE 4.
Interventional Treatment Results in Each Treatment Stage of Various IVCS
| Groups (Patients) | First Stage (69 Cases) | Second Stage (54 Cases) | Third Stage (37 Cases) | ||||||
| Valid | Invalid | Valid | Invalid | Valid | Invalid | ||||
| No Recur | Recur | No Recur | Recur | No Recur | Recur | ||||
| oMTS (22) | 0 | 0 | 22 | 3 | 3 | 16 | 19 | 0 | 0 |
| dMTS (33) | 5 | 0 | 28 | 10 | 6 | 12 | 18 | 0 | 0 |
| oIVCS (14) | 10 | 0 | 4 | 4 | 0 | 0 | 0 | 0 | 0 |
| X2 test | 27.270 | 12.186 | — | ||||||
| P | <0.001* | 0.002* | — | ||||||
dMTS indicates low lumbar degeneration-related May-Thurner syndrome; IVCS, iliac vein compression syndrome; oIVCS, other cause iliac vein compression; oMTS, May-Thurner syndrome.
*Valid cases were effective therapeutic patients without relapse; invalid cases included unresponsive patients and recurrent patients.