Table 3_Echocardiographic assessment of left atrial structure and function in severe aorti

A 2026 study by Yao Zhang compares left atrial parameters in patients with severe aortic stenosis, grouped by preserved or reduced left ventricular ejection fraction (LVEF). The dataset likely contains measurements from transthoracic and speckle-tracking echocardiography, including LA volumes, emptying fractions, and strain indices. It was published on figshare under a CC-BY-4.0 license.

Use Cases

• Classifying heart function severity based on left atrial volume and strain parameters mentioned in the description.
• Modeling the non-linear relationship between left ventricular ejection fraction (LVEF) and left atrial function using the described inflection points.
• Comparing structural cardiac changes (e.g., LA stiffness index) between patient groups with preserved and reduced LVEF.
• Training models to predict left atrial functional impairment from echocardiographic structural measurements.

Strengths

• Includes specific, clinically relevant parameters like LA volumes, emptying fractions, and strain indices.
• Identifies precise LVEF inflection points (46% and 59%) for trend changes in LA structure and function.
• Employs advanced measurement techniques including two-dimensional speckle-tracking echocardiography (2D-STE).

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• The dataset is very small (16.6 KB), indicating limited scope.

Provenance

Source

figshare

Collection Method

Clinical study using transthoracic and two-dimensional speckle-tracking echocardiography on patient and control groups.

Freshness

Last updated 2026-05-21 05:42:28; freshness should be verified.