Treatment of COPD with Chronic Respiratory Failure: Low Arterial PaO2 or Elevated PaCO2
In advanced COPD, chronic respiratory failure — confirmed on arterial blood gas by a PaO2 below 60 mmHg and/or a PaCO2 above 45 mmHg — marks a point where the management approach shifts substantially. This protocol addresses that specific sub-population.
Clinical Scenario
The patient has advanced COPD with chronic respiratory failure. Arterial blood gas confirms hypoxaemia (PaO2 < 60 mmHg) and/or hypercapnia (PaCO2 > 45 mmHg) at rest.
Treatment Goal
Maintain a PaO2 ≥ 60 mmHg or an oxygen saturation ≥ 90% at rest and at sea level.
Approach (partial)
Management centres on continuous home oxygen therapy, with ventilatory and surgical options applicable in select cases. Full criteria, sequencing, and duration requirements are in the complete protocol.
References
DOI: 10.3390/jcm13020303
- In the case of chronic respiratory failure (arterial blood gas: PaO2 < 60 mmHg and/or PaCO2 > 45 mmHg), consider continuous home oxygen therapy or non-invasive ventilation.
- If needed, oxygen therapy should be adjusted to maintain a PaO2 ≥ 60 mmHg or oxygen saturation ≥ 90% at rest and at sea level.
- It should be maintained for >15 h per day.
- Non-pharmacological therapy has been shown to improve the status and/or prognosis of COPD patients in relation to smoking cessation, influenza and pneumococcal vaccination, improved nutrition and physical activity, as well as in advanced COPD, pulmonary rehabilitation, long-term oxygen therapy, non-invasive mechanical ventilation, or surgical techniques (lung transplantation, volume reduction surgery, bullectomy).
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