Domiciliary Oxygen Therapy by Dr. Saman Kularathne

Nocturnal oxygen therapy• Nocturnal oxygen therapy may be indicated to relieve• demonstrated oxygen desaturation during sleep toSpo2 ≤ 88% (Pao2 < 55 mmHg or 7.3 kPa) for morethan a third of the night or in the presence ofhypoxia-related sequelae(Isolated episodes of hypoxaemia during sleep due to hypoventilationor worsening ventilation–perfusion inequality in patients withobstructive or fibrotic lung diseases should be distinguished fromhypoxaemia associated with sleep apnoea caused by upper airwayobstruction or obesity hypoventilation syndrome.)