Key result
Valve-sparing root replacement was associated with lower 30-day mortality (11.6%) compared to supracommissural replacement (16.1%) and conduit replacement (19.8%) (p=0.010).
Why the study?
Surgery of the aortic root in acute aortic dissection type A remains an area of vague evidence due to remarkable variation in dissection extent and surgical interpretation.
Does valve sparing root replacement or conduit replacement improve 30-day mortality compared to supracommissural replacement in patients with acute aortic dissection type A?
Population
3382 patients undergoing operations for AADA across 56 centers
Comparison
Supracommissural replacement vs conduit replacement vs valve sparing root replacement
Design
Multicenter registry cohort study
Authors
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SCR may suit elderly or compromised AADA patients; leaves open optimal root strategy in lower-risk cases.
Cohort (n=3,382)
Yes
Does valve sparing root replacement or conduit replacement improve 30-day mortality compared to supracommissural replacement in patients with acute aortic dissection type A?
Absolute Event Rate: 11.6% vs 16.1%
p-value: p=0.010
Valve sparing root replacement for acute aortic dissection type A is associated with promising early outcomes and lower 30-day mortality compared to conduit or supracommissural replacement, though patient selection plays a significant role.
Kallenbach et al. (2022) conducted a cohort in Acute aortic dissection type A (AADA) (n=3,382). Valve sparing root replacement (VSRR) vs. Supracommissural replacement (SCR) and conduit replacement (CR) was evaluated on Thirty-day mortality (p=0.010). Valve-sparing root replacement was associated with lower 30-day mortality (11.6%) compared to supracommissural replacement (16.1%) and conduit replacement (19.8%) (p=0.010).
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