interatrial septum


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Related to interatrial septum: coronary sulcus, atrioventricular septum

interatrial septum

[¦in·tər′ā·trē·əl ′sep·təm]
(anatomy)
References in periodicals archive ?
transechocardiograph shows right atrial mass attached to interatrial septum.
035 mm Terumo wire, across the interatrial septum until it reached the left upper pulmonary vein.
The dilatation of interatrial septum was completed under TTE and angiography guidance, first with a Z-med II 8 mm X 4 cm balloon, followed by a Z-med II 10 mm x 4 cm and then Z-med II 13 mm x 4 cm balloons.
After successful ablation, transseptal sheaths were withdrawn across the interatrial septum with the ablation catheter tip protruding slightly.
The interatrial septum bulges into the left atrium at end-systole, moves to the midline at mid-diastole, and bulges into the right atrium at end-diastole.
Subsequent transthoracic echocardiography demonstrated that the pacemaker lead was crossing the interatrial septum, passing through the mitral valve and entering the lateral left ventricular myocardium.
Hirayanagi of Takasaki in Gunma Prefecture, northwest of Tokyo, was diagnosed with a hole in the interatrial septum between the two chambers of the heart shortly after she was born and was hospitalized in late February, the complaint said.
Postnatally, the fusion of the septa results in a depression seen on the right side of the interatrial septum at the site of the former foramen ovale, referred to as the fossa ovalis.
While transseptal puncture of the interatrial septum was introduced nearly 50 years ago, it remains a difficult procedure.
Atrial electromechanical coupling at the right (PRA), left (PLA), interatrial septum (PIS) were measured with TDI.