| 术中操作 | 主动脉瓣狭窄(n = 112) | 主动脉瓣关闭不全(n = 37) | c²值 | P值 |
| 球囊预扩 | 97 (86.61%) | 1 (2.70%) | 86.972 | <0.001 |
| 球囊后扩 | 41 (36.61%) | 2 (5.41%) | 13.188 | <0.001 |
| 瓣中瓣 | 14 (12.50%) | 9 (24.32%) | 2.979 | 0.084 |
| 体外循环辅助 | 3 (2.68%) | 1 (2.70%) | 0.000 | 1.000 |
| 术中CPR | 6 (5.36%) | 1 (2.70%) | 0.438 | 0.508 |
| ECMO辅助 | 1 (0.89%) | 0 (0.00%) | 0.000 | 1.000 |