TABLE 4.
Procedural clinical characteristics
|
Overall cohort n = 240 |
Low tortuosity n = 88 |
High tortuosity n = 152 |
p Value | |
|---|---|---|---|---|
| Procedural variables | ||||
| Treatment period tertials, n (%) | 0.866 | |||
| 2009‐2011 | 39 (16.3) | 13 (14.8) | 26 (17.1) | |
| 2012‐2014 | 80 (33.3) | 29 (33.0) | 51 (33.6) | |
| 2015‐2017 | 121 (50.4) | 46 (52.3) | 75 (49.3) | |
| Procedure time (min), median (±IQR) | 85.0 (33.0) | 85.0 (34.0) | 88.5 (35.0) | 0.935 |
| Balloon expanding valve used, n (%) | 69 (28.8) | 26 (29.5) | 43 (28.3) | 0.474 |
| Prosthesis size (mm), median (±IQR) | 29.0 (3.0) | 29.0 (3.0) | 29.0 (3.0) | 0.732 |
| Predilatation necessary, n (%) | 198 (82.5) | 71 (80.7) | 127 (83.6) | 0.346 |
| Delivery system/sheath diameter, median (±IQR) | 16.3 (1.2) | 16.2 (1.1) | 16.3 (1.2) | 0.576 |
| Postdilatation necessary, n (%) | 42 (17.5) | 13 (14.8) | 29 (19.1) | 0.254 |
| Paravalvular leak more than trace, n (%) | 28 (11.7) | 9 (10.2) | 19 (12.5) | 0.391 |
| Closure device strategy, n (%) | 0.441 | |||
| Prostar | 116 (48.3) | 43 (48.9) | 73 (48.0) | |
| Dual Proglide closure | 124 (51.7) | 45 (51.1) | 79 (52.0) | |
| Total hours in ICU (hours), median (±IQR) | 72.0 (48.0) | 48.0 (80.0) | 72.0 (48.0) | 0.755 |
| Max. creatinine within 72h mg/dL, median (±IQR) | 0.95 (0.56) | 0.89 (0.43) | 0.97 (0.60) | 0.105 |
| Mean gradient post‐implant (mm Hg), median (±IQR) | 10.0 (7.0) | 11.0 (7.0) | 10.0 (7.0) | 0.608 |
| Max. gradient post‐implant (mm Hg), median (±IQR) | 18.0 (14.0) | 18.0 (16.0) | 16.0 (11.0) | 0.223 |
| Max. flow post‐implant (m/s), median (±IQR) | 2.1 (1.0) | 2.1 (1.0) | 2.1 (1.0) | 0.645 |
| Length of stay after TAVR (days), median (±IQR) | 8.0 (7.0) | 8.0 (7.0) | 8.0 (8.0) | 0.880 |
Abbreviations: ICU, intensive care unit; other abbreviations as in Tables 1 and 2.