Aneurysm of the fossa ovalis in infants: A pathologic study

Abstract

An aneurysm of the fossa ovalis was identified at autopsy in 17 infants. In each case the aneurysm of the fossa ovalis was considered to have resulted from excessive elevation of pressure in that atrium contralateral to the side into which the aneurysm bulged. The aneurysms were divided into two types: intrinsic (three cases) and extrinsic (14 cases). The intrinsic types of aneurysms of the fossa ovalis were considered to have started in fetal life and were consequences of abnormally narrow states of interatrial ostium II. Each intrinsic aneurysm bulged toward the left. Among the extrinsic types of aneurysm of the fossa ovalis, each was considered to have resulted from the hemodynamic consequences of a congenital anomaly in one side of the heart or other. Six aneurysms of extrinsic type bulged toward the left and eight toward the right. Aneurysm of the fossa ovalis should be included in the differential diagnosis of space-occupying conditions within the atria.

Echocardiographic Guidance of Percutaneous Patent Foramen Ovale Closure: Head‐to‐Head Comparison of Transesophageal versus Rotational Intracardiac Echocardiography

“…These findings were confirmed by Bland‐Altman analysis, which showed not only systematic disagreement but, more importantly, wide limits of agreement for each comparison in the presence of ASA (Fig. 2), indicating a rather great variability between the two techniques at the individual level 16 . As demonstrated by our study, rotational ICE and TEE cannot be used interchangeably for fossa ovalis measurements, particularly in patients with ASA.…”

“…2), indicating a rather great variability between the two techniques at the individual level. 16 As demonstrated by our study, rotational ICE and TEE cannot be used interchangeably for fossa ovalis measurements, particularly in patients with ASA. Discrepancies between TEE and rotational ICE can be explained primarily by anatomical considerations.…”

Cardioembolic stroke from atrial septal aneurysm.

“…- 19 Angiocardiography, an invasive technique, is obviously not practical as a routine examination for the detection of the aneurysm. Furthermore, angiocardiography does not allow direct visualization of the interatrial septum but shows a filling defect that may be mistaken for an intra-atrial tumor or thrombus.…”

Echocardiographic and Doppler Diagnosis: First Case of Atrial Septal Aneurysm in a Cat

“…As in this cat, it generally occurs concomitantly with congenital or acquired heart disease, although isolated instances have been reported. [7][8][9] The pathogenesis of ASA is typically explained by greater pressure in one atrium, leading to controlateral protrusion of the atrial septum.…”