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Published on: December 11, 2017
Recurrent subaortic membrane causing subvalvular aortic stenosis 13 years after primary surgical resection
Richard Takx1, U Joseph Schoepf, Brad Friedman
1Department of Radiology and Radiological Science, Medical University of South Carolina, 25 Courtenay Drive, MSC 226, Charleston, SC 29401, USA.
Journal of Cardiovascular Computed Tomography
|March 4, 2011
Summary
Cardiac CT angiography aids in evaluating recurrent subaortic membranes, a rare cause of left ventricular outflow tract obstruction. This imaging technique is crucial for preoperative assessment in affected patients.
Area of Science:
- Cardiovascular Imaging
- Cardiac Surgery
- Congenital Heart Disease
Background:
- Subaortic membranes are rare congenital anomalies causing left ventricular outflow tract (LVOT) obstruction.
- Preoperative evaluation is essential for surgical planning and risk stratification.
- Cardiac CT angiography offers detailed anatomical visualization.
Observation:
- A case of recurrent subaortic membrane in a 23-year-old woman is presented.
- Cardiac CT angiography was utilized for detailed preoperative assessment.
- The imaging revealed a thin fibrous membrane within the LVOT.
Findings:
- Cardiac CT angiography effectively delineated the subaortic membrane's extent and relationship to surrounding structures.
- The study highlights the utility of this modality in identifying anatomical abnormalities.
- Turbulent flow secondary to the membrane, potentially leading to LVOT obstruction and aortic insufficiency, was assessed.
Implications:
- Cardiac CT angiography is a valuable tool for the preoperative evaluation of subaortic membranes.
- Accurate anatomical assessment can guide surgical intervention and improve patient outcomes.
- This case underscores the importance of advanced imaging in managing rare cardiac conditions.
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