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[Echocardiographic patterns in discrete subvalvular aortic stenosis (author's transl)]
Giornale Italiano Di Cardiologia
|January 1, 1980
Summary
M-mode echocardiography can help diagnose discrete subvalvular aortic stenosis by identifying abnormal aortic valve movements. However, it is not reliable for assessing the severity of this condition.
Area of Science:
- Cardiovascular Imaging
- Pediatric Cardiology
Context:
- Discrete subvalvular aortic stenosis (DSVAS) is a congenital heart defect.
- Accurate diagnosis and severity assessment are crucial for patient management.
Purpose:
- To evaluate the utility of M-mode echocardiography in diagnosing and assessing the severity of discrete subvalvular aortic stenosis.
Summary:
- M-mode echocardiography identified abnormal aortic valve leaflet motion in most patients with DSVAS.
- A discrete linear echo in the left ventricular outflow tract was observed less frequently.
- In half of the cases, left ventricular outflow tract narrowing was detected.
- No correlation was found between echocardiographic measurements and the pressure gradient across the stenosis.
Impact:
- M-mode echocardiography provides helpful diagnostic criteria for DSVAS but cannot exclude the condition if findings are absent.
- The technique is not quantitatively useful for assessing the severity of subaortic stenosis.