Table 2.
Operative characteristics with univariate analysis
| Operative variable | Total (n = 143) | No ARA (n = 93) | ARA (n = 50) | p |
|---|---|---|---|---|
| Aortic valve implant type | .019 | |||
| Mechanical | 28% (39/139) | 29% (26/89) | 26% (13/50) | |
| Biological | 67% (93/139) | 70% (62/89) | 62% (31/50) | |
| Homograft | 5% (7/139) | 1% (1/89) | 12% (6/50) | |
| Aortic valve ring size | 22.8 (SD ± 2.5) | 22.8 (SD ± 2.6) | 22.8 (SD ± 2.5) | .796 |
| Aortic root operation | <.001 | |||
| No root operation | 55% (79/143) | 85% (79/93) | 0% (0/50) | |
| 6.0 Prolene sutures | 4% (6/143) | 0% (0/93) | 12% (6/50) | |
| PR | 23% (33/143) | 3% (4/93) | 54% (29/50) | |
| ARR | 15% (22/143) | 5% (7/93) | 30% (15/50) | |
| Cumulative bypass time (min) | 144.5 (SD ± 75.0) | 132.5 (SD ± 64.9) | 168.1 (SD ± 87.9) | .011 |
| Cumulative cross clamp (min) | 102.7 (SD ± 50.0) | 94.6 (SD ± 42.9) | 118.7 (SD ± 59.1) | .009 |
Note: Bold indicates statistical significance. Continuous variables are given as mean values (with associated standard deviation) unless stated otherwise. Categorical variables are given as percentages (with associated raw data).
Abbreviations: ARA, aortic root abscess; ARR, aortic root replacement; PR, patch reconstruction.