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. 2018 Apr 15;14(4):497-498.
doi: 10.5664/jcsm.7026.

Overnight Pulse Oximetry Unwoven

Peter C Gay  1
Affiliations

Overnight Pulse Oximetry Unwoven

Peter C Gay. J Clin Sleep Med. .
No abstract available

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Figures

Figure 1
Figure 1. Overnight oximetry tracing.
This overnight oximetry tracing was done on room air with the patient reporting a typical night's sleep on room air with no sedative medications or alcohol consumed. The reduced mean saturation (84.7%) and prolonged time < 90% oxygen saturation (86.3% of recording time) are as expected for the patient's known moderate chronic obstructive pulmonary disease and right heart failure with pulmonary hypertension. Also note the clustered episodes of deep desaturations down to the minimum of 59% (“icicles from the rooftop”) which are consistent with the findings of REM sleep stage hypoventilation common in obese patients with chronic obstructive pulmonary disease as was later found during this patient's polysomnography study.
See this image and copyright information in PMC

Comment on

  • Commentary on Ayache and Strohl. High interrater reliability of overnight pulse oximetry interpretation among inexperienced physicians using a structured template. J Clin Sleep Med. 2018;14(4):541–548.

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