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  • Title: Home Non-Invasive Positive Pressure Ventilation in Chronic Obstructive Pulmonary Disease: Why, Who, and How?
    Author: Köhnlein T, Schwarz SB, Nagel S, Windisch W.
    Journal: Respiration; 2022; 101(8):709-716. PubMed ID: 35717945.
    Abstract:
    Advanced chronic obstructive pulmonary disease (COPD) might result in chronic hypercapnic ventilatory failure. Similar to neuromuscular and restrictive chest wall diseases, long-term non-invasive positive pressure ventilation (NPPV) is increasingly used in chronic hypercapnic COPD. This review describes the methods, patient selection, ventilatory strategies, and therapeutic effects of long-term Home-NPPV based on randomized controlled clinical trials published since 1985 in English language retrieved from the databases PubMed and Scopus. Long-term NPPV is feasible and effective in stable, non-exacerbated COPD patients with daytime hypercapnia with arterial pressure of carbon dioxide (PaCO2) levels ≥50 mm Hg (6.6 kPa), if the applied ventilatory pressures and application times improve baseline hypercapnia by at least 20%. Patients who survived an acute hypercapnic exacerbation might benefit from long-term NPPV if hypercapnia persists 2-4 weeks after resolution of the exacerbation. Pressure-controlled ventilation or pressure-support ventilation with adequate minimum backup breathing frequencies, in combination with nasal masks or oronasal masks have been successfully used in all larger clinical trials. Ventilatory strategies with mean inspiratory pressures of up to 28 cm H2O are well-tolerated by patients, but limitations exist in patients with impaired cardiac performance. Home-NPPV with a PaCO2-reductive approach might be considered as an additional treatment option in patients with stable chronic hypercapnic COPD.
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