Key result
Aortic valve replacement with allografts yielded an overall cumulative survival of 73% at 9 years, with the subcoronary technique showing significantly better survival than root replacement (P=0.005).
Why the study?
What are the midterm outcomes and durability of allograft aortic valve or root replacement, and how do subcoronary and root replacement techniques compare?
Population
267 consecutive patients undergoing aortic valve or root replacement with allografts, mean age 46 years, 201…
Comparison
Allograft aortic valve or root replacement vs Subcoronary technique compared to root…
Design
Cohort
Follow-up
9 years
Authors
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Allograft AVR may offer acceptable midterm survival; leaves open optimal technique selection pending randomized confirmation.
Cohort (n=267)
No
What are the midterm outcomes and durability of allograft aortic valve or root replacement, and how do subcoronary and root replacement techniques compare?
p-value: p=0.005
Allograft aortic valve replacement provides adequate midterm survival and freedom from reoperation, though structural valve deterioration remains a limitation, particularly in younger patients.
Takkenberg et al. (2002) conducted a cohort in Aortic valve or root disease requiring replacement (n=267). Allograft aortic valve or root replacement vs. Subcoronary technique vs. Aortic root replacement was evaluated on Overall cumulative survival at 9 years (95% CI 65-81, p=0.005). Aortic valve replacement with allografts yielded an overall cumulative survival of 73% at 9 years, with the subcoronary technique showing significantly better survival than root replacement (P=0.005).
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