Key result
Aortic root preservation for acute type A aortic dissection demonstrated higher overall survival compared to root replacement (HR 0.83; 95% CI 0.76-0.91; p<0.01), despite higher reoperation risk.
Why the study?
To evaluate and compare the long-term outcomes of aortic root preservation versus root replacement in patients undergoing aortic repair for acute type A aortic dissection.
Does aortic root preservation improve overall survival compared to root replacement in patients with acute type A aortic dissection?
Meta-Analysis (n=7,569)
Does aortic root preservation improve overall survival compared to root replacement in patients with acute type A aortic dissection?
In acute type A aortic dissection, aortic root preservation is associated with superior overall survival but a higher risk of reoperation compared to root replacement.
Answers are grounded in this paper and cite their sources.
RP strategy in ATAAD may favor survival yet raises reoperation concerns; leaves open optimal approach pending prospective trials.
OBJECTIVE: We reviewed the available literature on patients undergoing aortic repair for acute type A aortic dissection (ATAAD) with either aortic root preservation (RP) or root replacement (RR). METHODS: Original research studies that evaluated the long-term outcomes of the RP versus RR group were identified from 2000 to 2025. Median overall survival (OS) was the primary endpoint. Reoperation-free OS was the secondary endpoint. Sensitivity analyses were performed including risk-adjusted populations, subgroups, and using the leave-one-out method. RESULTS: Seventeen studies were included in the qualitative and quantitative synthesis, incorporating data from 7569 patients with a follow-up period of up to 25 years. According to our analysis, RP (4266 patients) demonstrated higher OS compared to RR (2589 patients) groups (HR: 0.83; 95% CI:0.76, 0.91; p < 0.01). The median OS was 13.57 years for the RP group and 13.48 years for the RR group. Nonetheless, the reoperation-free OS was higher in the RR group (HR: 1.39; 95% CI: 1.16, 1.67; p < 0.01). Valve-sparing RR (VSRR) demonstrated the highest long-term OS (p < 0.05). CONCLUSION: RP is associated with superior OS but a higher risk of reoperation, while RR offers greater durability with fewer reoperations, and VSRR may provide the optimal balance of longevity and native valve preservation, warranting further prospective studies.
No takes yet. Share an insight, caveat, or question.
Magouliotis et al. (2025) conducted a meta-analysis in acute type A aortic dissection (ATAAD) (n=7,569). Aortic root preservation vs. Root replacement was evaluated on Median overall survival (OS) (HR 0.83, 95% CI 0.76, 0.91, p=< 0.01). Aortic root preservation for acute type A aortic dissection demonstrated higher overall survival compared to root replacement (HR 0.83; 95% CI 0.76-0.91; p<0.01), despite higher reoperation risk.
Synapse has enriched 10 related papers. Consider them for comparative context: