Metabolic Changes After Bronchoscopic Lung Volume Reduction With Endobronchial Valves in COPD Patients

Area of Science:

• Pulmonology
• Respiratory Medicine
• Medical Interventions

Background:

• Chronic Obstructive Pulmonary Disease (COPD) significantly impacts extrapulmonary systems, including body composition, muscle function, and metabolism.
• Pulmonary Rehabilitation (PR) is known to address these extrapulmonary manifestations.
• The combined effect of BLVR-EBV and PR on these outcomes is not well understood.

Purpose of the Study:

• To evaluate the impact of BLVR-EBV on body composition, muscle function, and metabolic markers in severe COPD patients.
• To determine if PR provides additional benefits when combined with BLVR-EBV for these extrapulmonary outcomes.

Main Methods:

• A randomized controlled trial involving 97 severe COPD patients eligible for PR and BLVR-EBV.
• Participants were assigned to PR+BLVR-EBV, BLVR-EBV+PR, or BLVR-EBV alone groups.
• Comprehensive assessments included body composition (DXA), muscle imaging (CT), strength, physical activity (accelerometry), and plasma biomarkers at baseline and six months.

Main Results:

• 74 participants completed the study.
• Significant improvements were observed in total weight, lean mass, fat mass, muscle strength, and daily physical activity across groups.
• Triglyceride levels increased, and the leptin/fat mass ratio decreased significantly.
• No significant differences were found between groups receiving BLVR-EBV alone versus those combined with PR.

Conclusions:

• BLVR-EBV alone leads to substantial improvements in body weight, lean and fat mass, muscle strength, and physical activity in severe COPD patients.
• BLVR-EBV positively impacts the adipokine profile, irrespective of concurrent PR.
• These findings highlight the systemic benefits of addressing lung hyperinflation through BLVR-EBV in severe COPD.