Echocardiographic Left Atrial Structure and Function in Severe Aortic Stenosis

A clinical study comparing left atrial structure and function in patients with severe aortic stenosis, grouped by preserved versus reduced left ventricular ejection fraction. The dataset includes measurements from transthoracic and speckle-tracking echocardiography, with results analyzed using restricted cubic splines. The data was authored by Yao Zhang and last updated on 2026-05-21.

Use Cases

• Modeling the relationship between left ventricular ejection fraction and left atrial parameters based on the described nonlinear analysis.
• Comparing cardiac structural volumes (e.g., LAVmax, LAVmin) between patient groups with different ejection fractions.
• Analyzing functional impairment in the left atrium using strain and emptying fraction parameters mentioned in the results.

Strengths

• Specific clinical parameters are named, including LA volumes, strain, and emptying fractions.
• Analysis includes identified LVEF inflection points (46% and 59%) for trend changes.
• Data is shared under a permissive CC-BY-4.0 license.

Limitations

• The dataset is very small (15.4 KB), suggesting limited scope or a summary table.
• Column-level documentation and sample data are unavailable, requiring inference from the description.
• Row count is unknown, which may limit suitability assessment for statistical modeling.

Provenance

Source

figshare, author Yao Zhang.

Collection Method

Clinical measurements from transthoracic and two-dimensional speckle-tracking echocardiography.

Freshness

Last updated 2026-05-21 05:42:23; freshness should be verified.