- Cor Triatriatum Sinister
- Left atrial membrane visualized in mid portion of left atrium
- Cor Triatriatum Sinister
- Left atrial membrane present in left atrium
- Restrictive flow across the mid portion of the left atrial membrane
- Tiny amount of flow of antegrade flow across a fenestration in the far right side of the membrane
- Cor Triatriatum Sinister
- Still frame demonstrating a membrane in the left atrium
- Largest opening in the membrane in its mid portion which measures ~3.7 mm
- Turbulent restrictive flow across the mid portion and right side of the left atrial membrane (red Doppler jets)
Echocardiographic Assessment: Apical 5 Chamber
- Assess for presence of left atrial membrane and membrane morphology (location, size, single opening/fenestrated by 2D and color Doppler)
- Assess mean gradient across the membrane (pulse and continuous wave spectral Doppler)
- Left atrial size
- Mitral valve (stenosis, regurgitation by 2D, color and spectral Doppler)
- Pulmonary venous return into chamber above membrane (2D and spectral Doppler
- Transducer at cardiac apex
- Notch at 3-4 o'clock (slight clockwise rotation)
- 4th or 5th intercostal space
- Probe tilted anteriorly (tail down)