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Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
Published on: December 11, 2017
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Developing Hemodynamic Valve Deterioration and Mortality in Aortic Valve Replacement.
Hee Jung Kim1, Kyung-Sook Yang2, Joon Bum Kim3
1Department of Thoracic and Cardiovascular Surgery, Korea University Anam Hospital, Korea University, Seoul, Korea.
The Journal of Surgical Research
|January 29, 2023
Summary
Hemodynamic valve deterioration (HVD) is common after bioprosthetic surgical aortic valve replacement (SAVR). Developing HVD is linked to reduced survival rates in patients, highlighting a critical concern for long-term outcomes.
Area of Science:
- Cardiology
- Biomedical Engineering
- Clinical Outcomes Research
Background:
- Increasing lifespan raises concerns about bioprosthetic valve durability.
- Hemodynamic valve deterioration (HVD) is a significant issue in patients with bioprosthetic valves.
- Surgical aortic valve replacement (SAVR) outcomes require ongoing evaluation.
Purpose of the Study:
- To assess the association between developing HVD and survival rates.
- To investigate the long-term impact of HVD after SAVR.
- To identify risk factors for mortality in patients with bioprosthetic valves.
Main Methods:
- Included patients undergoing isolated SAVR with serial echocardiography.
- Defined HVD based on pressure gradients and regurgitation severity.
- Employed a time-dependent Cox proportional hazard model for survival analysis.
Main Results:
- HVD was observed in 41% of 631 patients during follow-up.
- The development of HVD was an independent risk factor for death (HR 1.46, P=0.038).
- Patient-prosthetic mismatch was present in 174 patients.
Conclusions:
- HVD is frequent following bioprosthetic SAVR.
- Moderate to severe HVD is associated with poorer survival.
- Early detection and management of HVD are crucial for patient outcomes.
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