Table 4.
Acute success rates per freeze cycle.
| POLARx (n = 65) | AFA (n = 531) | p-Value | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| LSPV (n = 65) | LIPV (n = 65) |
LCV (n = 0) | RIPV (n = 65) |
RSPV (n = 65) |
LSPV (n = 519) |
LIPV (n = 519) |
LCV (n = 12) |
RIPV (n = 531) |
RSPV (n = 531) |
||
| Isolation of PV (%) | 100 | 100 | - | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 1.000 |
| Isolation with 1st freeze (%) | 66 | 86 | - | 78 | 67 | 64 | 50 | 8 | 72 | 48 | 0.027 * |
| Isolation with 2nd freeze (%) | 32 | 14 | - | 20 | 30 | 33 | 48 | 42 | 23 | 46 | 0.038 * |
| Isolation with 3rd freeze or more (%) | 2 | 0 | - | 2 | 3 | 3 | 2 | 50 | 5 | 6 | 0.205 |
LSPV, left superior pulmonary vein; LIPV, left inferior pulmonary vein; LCV, left common vein; RIPV, right inferior pulmonary vein; RSPV, right superior pulmonary vein. * and bold letters indicate statistical significance.