Left ventricular structure and remodeling in patients with COPD.

Area of Science:

• Cardiology
• Pulmonology
• Medical Imaging

Background:

• Cardiac alterations in COPD patients are inconsistent.
• Early detection of cardiac changes in COPD is crucial, especially in those without diagnosed cardiovascular disease.

Purpose of the Study:

• Investigate early structural and functional cardiac changes in COPD patients without manifest cardiovascular disease.
• Assess associations between cardiac changes and clinical/functional features of COPD.

Main Methods:

• 49 COPD patients (all GOLD classes) and 36 controls underwent clinical assessment, lung function tests, ECG, and echocardiography.
• Computed tomography quantified emphysema score.
• Doppler tissue echocardiography assessed cardiac structure and function.

Main Results:

• COPD patients exhibited lower left ventricular (LV) cavity with increased relative wall thickness (RWT), indicating concentric remodeling.
• RWT correlated significantly with FEV1/FVC ratio and emphysema score.
• RWT predicted COPD severity (83% specificity, 56% sensitivity). Right ventricular function was normal without structural changes.

Conclusions:

• COPD patients without evident cardiovascular disease display significant LV geometry changes (concentric remodeling).
• RWT is independently related to COPD severity.
• Further studies are needed to confirm the prognostic role of RWT in COPD.