Abstract
Objective
Aortic dilatation concurrent with aortic valve disease is a common condition. However, the incidence of aortic dissection after aortic valve replacement for tricuspid aortic valve has not been fully investigated. Therefore, we performed a risk factor analysis for the incidence of aortic dissection after aortic valve replacement in patients with tricuspid aortic valve.
Methods
We retrospectively reviewed 599 patients who underwent aortic valve replacement at our hospital between January 2000 and December 2020. We performed a risk factor analysis for the incidence of aortic dissection after aortic valve replacement in patients with tricuspid aortic valve.
Results
Seven patients developed late aortic dissections during the follow-up period. All patients with aortic dissection underwent aortic valve replacement for aortic regurgitation. Multivariable analysis revealed that aortic regurgitation was an independent predictor of aortic dissection (p < 0.0001). The mean ascending aortic diameter at aortic valve replacement for aortic regurgitation was significantly greater in patients with aortic dissection than in those without aortic dissection (46 [43.5–46] mm vs. 39 [36–42] mm, p < 0.001). The predictive cutoff value of ascending aortic diameter was indicated using receiver operating characteristic curve analysis; 46.0 mm (area under the curve: 0.8987). Freedom rates from aortic dissection in patients with aortic regurgitation and an ascending aortic diameter ≥ 46 mm were significantly lower than those in patients with an ascending aortic diameter < 46 mm (66.7% vs. 100% at 5 years, p < 0.0001).
Conclusion
Aortic regurgitation combined with ascending aortic dilatation at aortic valve replacement could be a significant risk factor for late aortic dissection.
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Data availability
The datasets generated and/or analyzed during the current study are available from the corresponding author on reasonable request.
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This study was approved by the local Institutional Review Board (number: 2023-021 date: February 6, 2023), and informed consent was obtained from all patients in this study. The study was conducted in accordance with the principles of the Declaration of Helsinki.
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Tamagawa, Y., Kawamura, M., Shibata, K. et al. Risk factor analysis for aortic dissection after aortic valve replacement in patients with tricuspid aortic valve. Gen Thorac Cardiovasc Surg 72, 305–310 (2024). https://doi.org/10.1007/s11748-023-01970-3
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DOI: https://doi.org/10.1007/s11748-023-01970-3