June 30, 2026Journal of the American College of Cardiology
Diagnosis and classification of atrial septal aneurysm by two-dimensional echocardiography: Report of 80 consecutive cases
Key result
Atrial septal aneurysm occurs in ~0.2% of routine echocardiograms, most often as an isolated finding.
- n=80
Population
80 consecutive patients with atrial septal aneurysm identified prospectively from 36,200 two-dimensional…
Design
Case_series
Authors
Discussion
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Implication
Atrial septal aneurysms are rare echocardiographic findings (0.22% incidence) that can be classified into distinct morphological types and are often associated with other cardiac anomalies like atrial septal defects.
Key Points
- The aim is to study the associations and incidence of atrial septal aneurysm using echocardiography.
- Reviewed 80 consecutive patients identified with atrial septal aneurysm.
- Patients studied using two-dimensional echocardiographic imaging from 1978 to 1984.
- Examined associations of aneurysms with various cardiac conditions.
- Atrial septal aneurysm found in 36 out of 36,200 echocardiographic studies (0.22% incidence).
- Observed aneurysms included three types of fossa ovalis aneurysm; none showed specific projection characteristics.
- All cases of complete atrial septum aneurysm were linked with complex congenital anomalies.
Study Design
Type
Observational (n=80)
Structured PICO
P
Population
80 consecutive patients (mean age 47 years, 65.5% female) prospectively identified with atrial septal aneurysm by two-dimensional echocardiography.
E
Exposure
Two-dimensional echocardiography
O
Outcome
Incidence, morphological classification, and clinical associations of atrial septal aneurysmsurrogate
Atrial septal aneurysms are rare echocardiographic findings (0.22% incidence) that can be classified into distinct morphological types and are often associated with other cardiac anomalies like atrial septal defects.
Cite This Study
Hanley et al. (1985) conducted an observational in Atrial septal aneurysm (n=80). Atrial septal aneurysm was evaluated on Incidence of atrial septal aneurysm. Among 36,200 two-dimensional echocardiographic studies, the overall incidence of atrial septal aneurysm was 0.22%, occurring most often as an isolated abnormality.