Impact of Supplemental Oxygen on Obstructive Sleep Apnea of Infants

Area of Science:

• Pediatrics
• Sleep Medicine
• Respiratory Medicine

Background:

• Infants with obstructive sleep apnea (OSA) often have limited treatment options, especially when surgical correction of airway lesions is not feasible.
• Evaluating non-invasive therapeutic strategies is crucial for managing infant OSA.

Purpose of the Study:

• To retrospectively assess the efficacy of low-flow oxygen therapy in treating infants diagnosed with obstructive sleep apnea.
• To determine the impact of low-flow oxygen on apnea indices and sleep architecture in this population.

Main Methods:

• Retrospective chart review of 23 infants with OSA who underwent a therapeutic trial of low-flow oxygen during polysomnography.
• Comparison of respiratory and sleep architecture findings from baseline polysomnography (room air) with data obtained during low-flow oxygen administration (0.25-1 L/min).
• Statistical analysis using Wilcoxon signed rank or McNemar's test to compare apnea-hypopnea index (AHI) and other relevant metrics.

Main Results:

• The median AHI significantly decreased from 18 to 3 (p=0.001) with low-flow oxygen therapy.
• Significant reductions were observed in the median obstructive/mixed apnea index (from 2 to 1; p=0.003) and central apnea index (from 1 to 0; p=0.002).
• Average and lowest oxygen saturation (SaO₂) levels improved, while sleep efficiency remained unaffected.

Conclusions:

• Low-flow oxygen therapy is effective in reducing central, obstructive, and mixed apneas in infants with OSA.
• This therapeutic approach improves oxygen saturation in infants with OSA.
• Low-flow oxygen represents a valuable non-surgical treatment option for infant obstructive sleep apnea.