atrial septum


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Related to atrial septum: interatrial septum, Ventricular septum

atrial septum

[′ā·trē·əl ′sep·təm]
(anatomy)
The muscular wall between the atria of the heart. Also known as interatrial septum.
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We suspect that the transient hemodynamic instability and ST-segment elevation were probably due to catheter manipulation of the atrial septum or a small air embolism to the right coronary artery, sufficient enough to induce an autonomic imbalance and a possible coronary artery vasospasm.
On cut surface, it was entirely composed of yellowish smooth glistening fatty tissue occupying and expanding the atrial septum (Figure 1(a)).
Among noncritical defects, fetuses with > 10 days of exposure had more defects of the atrial septum (413.2 vs.
Out of 9 left atrial myxomas, 7 were pedunculated and attached to the atrial septum, while 2 cases attached to the posterior wall of the left atrium.
[12,13] Aortic regurgitation has been found in association with atrial myxomas where the tumour pedicle is attached to the atrial septum close to the aortic root.
Protein-losing enteropathy: radiofrequency fenestration of the atrial septum after failure of transseptal needle puncture.
And an experimentally observed [18, 19] nonconductive region (block zone) next to the SAN toward the atrial septum was also incorporated in this model (see Figure 1(a)).
Color Doppler imaging over the atrial septum is also used to screen for a persistent shunt following transeptal puncture.
In the LA, the interatrial bundle was joined inferiorly at the septal raphe (the portion that is buried in the atrial septum) by fibers arising from the anterior rim of the oval fossa.
He started the procedure of Balloon dilation of the Atrial Septum and Mitral Balloon Valvuloplasty for the first time in the world at AIIMS, New Delhi.
Depending on the attachments, or lack thereof, of the common atrioventricular valve to the atrial and ventricular septums, there may be a defect in the lowermost portion of the atrial septum, in the ventricular septum, or both.
"He had two types of heart defect, a large opening in the ventricular septum and lots of small abnormalities in the atrial septum," said Andrew.