- Cor Triatriatum Sinister
- Left atrial membrane present in mid portion of left atrium
- Cor Triatriatum Sinister
- Turbulent flow is noted across a restrictive left atrial membrane (turbulent red color Doppler jet)
- Cor Triatriatum Sinister
- Spectral Doppler pattern across a left atrial membrane in a patient with Cor Triatriatum revealing stenosis across the membrane with a mean gradient of 8 mmHg.
- Cor Triatriatum Sinister
- Thick appearing cor membrane within the left atrium
- Severely dilated right ventricle
- Bowing of the interventricular septum into the LV (consistent with suprasystemic RV pressures)
- Severely depressed RV systolic dysfunction
- Moderately depressed LV systolic function
- Cor Triatriatum Sinister
- Restrictive cor membrane with a small amount of flow via two small fenestrations
- Severely dilated right ventricle
- Bowing of the interventricular septum into the LV (consistent with suprasystemic RV pressures)
- Upper mild mitral regurgitation
- Severely depressed biventricular systolic dysfunction
- Frequent atrial ectopy with runs of atrial tachycardia
Echocardiographic Assessment: Parasternal Long Axis
- Assess for presence of left atrial membrane and membrane morphology (location, size, single opening/fenestrated by 2D and color Doppler)
- Assess mean gradient across membrane (pulse and continuous wave spectral Doppler)
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- Transducer placed on the left sternal border
- 3rd or 4th intercostal space
- Notch pointed towards the patient's right shoulder (11 o'clock)