Relationship between Severity of Chronic Obstructive Pulmonary Disease and Left Ventricular Diastolic Dysfunction

Area of Science:

• Cardiology
• Pulmonology
• Internal Medicine

Background:

• Chronic obstructive pulmonary disease (COPD) is a systemic inflammatory condition affecting the respiratory system.
• Left ventricular diastolic dysfunction (LVDD), characterized by impaired ventricular filling, is a potential complication in severe COPD cases.
• Understanding the prevalence and characteristics of LVDD in COPD patients is crucial for comprehensive patient management.

Purpose of the Study:

• To investigate the prevalence of Left Ventricular Diastolic Dysfunction (LVDD) in patients diagnosed with Chronic Obstructive Pulmonary Disease (COPD).
• To explore potential correlations between LVDD and clinical parameters in COPD patients.

Main Methods:

• A cross-sectional study involving 58 COPD patients (under 65) and 58 healthy controls with normal spirometry.
• Echocardiography was performed to assess cardiac function.
• Blood tests for C-reactive protein (CRP) and N-terminal pro-B-type natriuretic peptides (NT-proBNP) were conducted.

Main Results:

• LVDD was significantly more common in COPD patients (60%) compared to controls (12.2%).
• A direct relationship was observed between Total Lung Capacity (TLC) and LVDD severity (P < 0.0001).
• Diastolic function showed a significant association with systolic pulmonary artery pressure (SPAP) in COPD patients (P < 0.0019).

Conclusions:

• The prevalence of LVDD is substantially higher in individuals with COPD.
• Findings suggest a significant link between COPD severity, lung mechanics, and diastolic cardiac function, underscoring the systemic impact of COPD.