Methodological Gaps in Left Atrial Function Assessment by 2D Speckle Tracking Echocardiography.

Area of Science:

• Cardiology
• Medical Imaging
• Echocardiography

Background:

• Left atrial (LA) function is vital for overall cardiac performance, influencing left ventricular (LV) function.
• Non-invasive assessment of LA function is crucial for managing various cardiovascular diseases.
• Traditional echocardiography methods have limitations in fully evaluating LA mechanics.

Purpose of the Study:

• To review the significance of 2D speckle tracking echocardiography (STE) for assessing LA mechanics.
• To highlight the potential of LA deformation parameters in detecting subclinical LA dysfunction.
• To discuss the clinical applications and standardization needs for STE-based LA function assessment.

Main Methods:

• Utilizing transthoracic two-dimensional (2D) phasic volumes and Doppler echocardiography.
• Employing 2D speckle tracking echocardiography (STE) to evaluate LA deformation.
• Reviewing recent studies on LA mechanics and clinical applications of STE.

Main Results:

• LA deformation parameters derived from STE are feasible and promising for assessing LA mechanics.
• STE can detect subclinical LA dysfunction in various pathological conditions.
• Existing data on normal ranges and diagnostic cut-offs for LA dysfunction are conflicting due to methodological issues.

Conclusions:

• A standardized technique for LA phasic function assessment by STE is essential.
• STE offers a valuable tool for evaluating LA mechanics and diagnosing cardiac dysfunction.
• Further research is needed to resolve conflicting data and establish definitive clinical guidelines for STE in LA function assessment.