Identifying early left atrial dysfunction in COPD patients using ECG morphology-voltage-P wave duration score

Area of Science:

• Cardiology
• Pulmonology
• Medical Diagnostics

Background:

• Chronic Obstructive Pulmonary Disease (COPD) is linked to left atrial (LA) dysfunction, potentially increasing cardiovascular risks.
• Early detection of LA dysfunction is crucial for managing COPD-related cardiovascular complications.

Purpose of the Study:

• To evaluate the predictive value of the morphology-voltage-P wave duration electrocardiography (MVP ECG) score for identifying early LA dysfunction in COPD patients.
• To assess the MVP ECG score's ability to detect subclinical atrial remodeling.

Main Methods:

• A cross-sectional study involving 101 COPD patients.
• Patients underwent speckle tracking echocardiography to assess LA function.
• Classification into normal and abnormal LA function groups.

Main Results:

• Significant differences in Peak Atrial Longitudinal Strain (PALS) were observed between groups (normal: 28.74±1.81%, abnormal: 18.44±1.87%, p<0.001).
• An MVP ECG score >2.5 predicted abnormal LA function with 65% sensitivity and 91% specificity (AUC: 0.873, p<0.001).
• LA diameter was similar between groups, highlighting subclinical changes.

Conclusions:

• The MVP ECG score demonstrates potential for early identification of atrial remodeling in COPD.
• This non-invasive score may assist clinicians in risk stratification for cardiovascular events in COPD patients.