Case Report
Life-Threatening Obstructive Sleep Apnea Caused by Adenoid Hypertrophy in an Infant with Noonan Syndrome
Table 1
Diurnal and nocturnal gases exchanges and sleep actigraphy before and 2 months after adenoidectomy.
| | | Before surgery | After surgery |
| | Diurnal gas exchange | | | | pH | 7.39 | 7.40 | | PaO2 (mmHg) | 57 | 76 | | PaCO2 (mmHg) | 53 | 41 |
| | Nocturnal gas exchange | | | | Clinical condition | O2 1 Lmin−1 | Ambient air | | Minimal SpO2 (%) | 79 | 77 | | Mean SpO2 (%) | 98 | 97 | | % time spent with SpO2 <90% (%) | 1 | 2 | | Maximal PtcCO2 (mmHg) | 79 | 47 | | Mean PtcCO2 (mmHg) | 59 | 38 | % time spent with
PtcCO2 >50 mmHg (%) | 77 | 0 |
| | Actigraphy | | | | Sleep Efficiency (%) | 59 | 90 | | MFI (%) | 83 | 28 |
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