Home Non-Invasive Positive Pressure Ventilation in Chronic Obstructive Pulmonary Disease: Why, Who, and How?

Area of Science:

• Pulmonary Medicine
• Respiratory Care

Background:

• Advanced chronic obstructive pulmonary disease (COPD) can lead to chronic hypercapnic ventilatory failure.
• Non-invasive positive pressure ventilation (NPPV) is increasingly utilized for chronic hypercapnic COPD, similar to other respiratory conditions.

Purpose of the Study:

• To review the methods, patient selection, ventilatory strategies, and therapeutic effects of long-term home NPPV in COPD.
• To synthesize evidence from randomized controlled trials published since 1985.

Main Methods:

• Systematic review of English-language randomized controlled trials from PubMed and Scopus.
• Analysis of patient selection criteria, ventilatory strategies (e.g., pressure-controlled, pressure-support), and mask types.
• Evaluation of outcomes, including PaCO2 reduction and patient tolerance.

Main Results:

• Long-term home NPPV is feasible and effective in stable COPD patients with daytime hypercapnia (PaCO2 ≥50 mm Hg) when it reduces hypercapnia by ≥20%.
• Patients recovering from acute hypercapnic exacerbations may benefit if hypercapnia persists.
• Pressure-controlled or pressure-support ventilation with nasal or oronasal masks is effective; pressures up to 28 cm H2O are generally well-tolerated, though cardiac function may be a limitation.

Conclusions:

• Home NPPV is a viable treatment option for stable chronic hypercapnic COPD.
• A PaCO2-reductive approach using home NPPV can be considered an additional therapy for select COPD patients.
• Careful patient selection and appropriate ventilatory strategies are key to successful long-term NPPV in COPD.