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Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
Published on: December 11, 2017
MR imaging of right ventricular function after the Ross procedure for aortic valve replacement: initial experience
Heynric B Grotenhuis1, Albert de Roos, Jaap Ottenkamp
1Department of Radiology, Leiden University Medical Center, Albinusdreef 2, C2-S, 2300 RC Leiden, the Netherlands.
Radiology
|December 7, 2007
Summary
Right ventricular (RV) hypertrophy and diastolic dysfunction are common after the Ross procedure, even without significant homograft stenosis. However, RV systolic function remains preserved in these patients.
Area of Science:
- Cardiology
- Cardiac Surgery
- Medical Imaging
Background:
- The Ross procedure is a surgical option for aortic valve disease.
- Assessing long-term right ventricular (RV) function after the Ross procedure is crucial for patient outcomes.
Purpose of the Study:
- To prospectively evaluate right ventricular (RV) function using magnetic resonance (MR) imaging in patients who have undergone the Ross procedure.
Main Methods:
- Seventeen patients post-Ross procedure and 17 matched controls underwent MR imaging.
- Standard MR sequences assessed homograft valve function, RV systolic and diastolic function, and RV mass.
- Statistical analysis included Mann-Whitney U test and Spearman correlation.
Main Results:
- Minor homograft stenosis was present in 12/17 patients.
- Ross patients exhibited larger RV mass and impaired diastolic RV function compared to controls.
- RV systolic function was preserved, with normal ejection fraction in Ross patients.
Conclusions:
- Right ventricular (RV) hypertrophy and diastolic dysfunction are frequent sequelae of the Ross procedure.
- These RV changes can occur even without significant homograft stenosis.
- Right ventricular (RV) systolic function is generally maintained post-Ross procedure.
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