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Table 1 Polysomnographic data at baseline, during C-PAP breathing, and during continuous oxygen administration

From: Type I Arnold-Chiari malformation with bronchiectasis, respiratory failure, and sleep disordered breathing: a case report

Polysomnographical data
  Baseline C-PAP FiO2 24%
Polysomnography
Total Sleep Time 7 h 03 m 7 h 40 m 7 h 30 m
Sleep onset latency 18.8 m 21.3 m 18.8 m
% Sleep efficiency 89 90 92
% Slow Wave Sleep 27 31 33
% REM 19 22 25
Respiratory Events
AHI 42 22 1
AC 125 63 3
AO 1 9 1
AM 9 0 0
HI 186 77 1
CH 175 72 3
OH 11 5 0
O2 saturation 89% 92% 96%
ODI 43 15.7 3.0
cT90 30% 21% 0%
Nadir SaO2 82 84 90
  1. AHI Apnoea/hypopnoea index, AC Central apnea, AO Obstructive apnoea, AM Mixed apnoea, HI Hypopnoea; CH Central Hypopnoea, OH Obstructive Hypopnoea, ODI Oxygen Desaturation Index, cT90 percentage of sleep time spent with SaO2 below the threshold of 90%; SaO2: arterial saturation; REM Rapid Eye Movements.