Key result
Acute type A aortic dissection was associated with a lower rate of aortic regurgitation grade III or greater (13% vs 29%, P=0.051) compared to chronic dissection.
Why the study?
Is preservation of the aortic valve feasible and effective in acute compared to chronic type A aortic dissections?
Observational (n=93)
Is preservation of the aortic valve feasible and effective in acute compared to chronic type A aortic dissections?
Absolute Event Rate: 13% vs 29%
p-value: p=0.051
Aortic valve preservation is feasible in non-Marfan patients with acute type A aortic dissection regardless of AR degree, whereas in chronic dissection, aortic root replacement should be considered for greater than moderate AR.
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May support valve preservation in acute type A dissection despite AR; leaves open root replacement thresholds in chronic cases.
Takashi Murashita (2001) conducted an observational in Type A aortic dissection (n=93). Acute type A aortic dissection vs. Chronic type A aortic dissection was evaluated on Aortic regurgitation grade III or greater (p=0.051). Acute type A aortic dissection was associated with a lower rate of aortic regurgitation grade III or greater (13% vs 29%, P=0.051) compared to chronic dissection.
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