A PICTURE IS WORTH A THOUSAND WORDS
ISOLATED COR TRIATRIATUM IN AN ADULT
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Fig. 1. TEE 4chv shows a membrane (white arrows) transecting the left atrium extending from its lateral wall to the mid-interatrial septum and dividing the left atrium into a high-pressure and low-pressure chamber. |
Fig. 2. TEE at 52 degree angle shows that the membrane (white arrows) is located inferior to the orifice of the left lower pulmonic vein. The left atrial appendage is inferior to the membrane. |
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Fig. 3. TEE at level of the aorta with the transducer directed slightly more to the left shows membrane's narrow orifice (red arrow) located medially. |
Fig.4. TEE color Doppler shows turbulence in the left atrium with the jet directed towards the left atrial appendage. |
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Fig.5. Open heart surgery showing the membrane
(yellow arrows). (Photo: Courtesy: Dr. Abdul Aziz AlKhulaifi) |
Fig.6. Cut membrane showing mitral valve inferior to
the membrane (yellow arrow). (Photo: Courtesy: Dr. Abdul Aziz AlKhulaifi) |
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Abbreviations: TEE = transesophageal echocardiography; LA hpc = left atrium high pressure chamber; LA lpc = left atrium low pressure chamber; Laa = left atrial appendage; LV = left ventricle; RA = right atrium; RV = right ventricle;
Ao = aorta; AW = cut left atrial wall; MV = mitral valve
From the Echocardiography Laboratory and
Cardiac Surgery, Cardiology & Cardiovascular Surgery Department, Hamad
Medical Corporation, Doha, Qatar
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CARDIOVASCULAR
