Skip to main content
Fig. 1 | Journal of Medical Case Reports

Fig. 1

From: Paradoxical worsening of hypoxemia in a patient treated by noninvasive positive pressure ventilation for obesity hypoventilation syndrome with concomitant obstructive sleep apnea: a case report

Fig. 1

a Respiratory polygraphy. Top: Obstructive apneas are shown by solid red bars, central apneas by solid gray bars, obstructive hypopneas by red speckled bars, and indeterminate hypopneas by orange speckled bars. The height of the bars reflects the duration of the respiratory event. Bottom: Oxygen saturation by pulse oximetry. b Data from the ResMed ventilator software ResScan: obstructive apneas are in red and obstructive hypopneas in blue; the numbers above the lines are event durations in seconds. SpO2 oxygen saturation by pulse oximetry

Back to article page