scholarly journals 838 Direct measurement of left ventricular outflow tract by newly developed transthoracic real-time-3D-echocardiography increases accuracy in assessment of aortic valve stenosis

2003 ◽  
Vol 4 ◽  
pp. S102 ◽  
Author(s):  
R SCHNABEL ◽  
R VONBARDELEBEN ◽  
A KHAW ◽  
C STRASSER ◽  
S MOHRKAHALY
Keyword(s):  
Aortic Valve ◽  
Real Time ◽  
Direct Measurement ◽  
Aortic Valve Stenosis ◽  
Left Ventricular Outflow Tract ◽  
Ventricular Outflow Tract ◽  
Left Ventricular ◽  
Outflow Tract ◽  
3D Echocardiography ◽  
Left Ventricular Outflow

scholarly journals Complex and multilevel left ventricular outflow tract obstruction: What can 3D echocardiography add?

2021 ◽  
Vol 73 (1) ◽  
Author(s):  
Hoda Abdelgawad ◽  
Mahmoud Shehata ◽  
Mahmoud Abdelnabi ◽  
Abdallah Almaghraby ◽  
Mohamed Ayman Abdel-Hay
Keyword(s):  
Aortic Valve ◽  
Left Ventricular Outflow Tract ◽  
Young Patients ◽  
Ventricular Outflow Tract ◽  
Left Ventricular ◽  
Outflow Tract ◽  
3D Echocardiography ◽  
Main Body ◽  
Ventricular Outflow Tract Obstruction ◽  
Left Ventricular Outflow

Abstract Background Subaortic obstruction by a membrane or systolic anterior motion of the mitral valve leaflets is usually suspected in young patients, especially if the anatomy of the aortic valve is not clearly stenotic and unexplained left ventricular hypertrophy exists in the context of high transaortic gradients. Main body In certain circumstances, some patients show both aortic and subaortic stenotic lesions of variable severity. Doppler echocardiography can help in grading severity in the case of single-level obstruction but not in patients with multilevel obstruction where the continuity equation is of no value. Three-dimensional (3D) echocardiography allows "en-face" visualization of each level of the aortic valve and subaortic tract; in addition, direct planimetry of the areas can be done using multiplanar reformatting. Conclusions Accordingly, 3D echocardiography plays a crucial role in the assessment in patients with multilevel left ventricular outflow tract obstruction as it can accurately delineate the location and size, and severity of the stenosis.

scholarly journals Congenital Aortic Valve Stenosis

Children ◽  
2019 ◽  
Vol 6 (5) ◽  
pp. 69 ◽  
Author(s):  
Gautam K. Singh
Keyword(s):  
Aortic Valve ◽  
Aortic Valve Stenosis ◽  
Left Ventricular Outflow Tract ◽  
Significant Risk ◽  
Ventricular Outflow Tract ◽  
Left Ventricular ◽  
Outflow Tract ◽  
Ventricular Outflow Tract Obstruction ◽  
Young Infants ◽  
Left Ventricular Outflow

Aortic valve stenosis in children is a congenital heart defect that causes fixed form of hemodynamically significant left ventricular outflow tract obstruction with progressive course. Neonates and young infants who have aortic valve stenosis, usually develop congestive heart failure. Children and adolescents who have aortic valve stenosis, are mostly asymptomatic, although they may carry a small but significant risk of sudden death. Transcatheter or surgical intervention is indicated for symptomatic patients or those with moderate to severe left ventricular outflow tract obstruction. Many may need reintervention.

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