Aerophagia occurs when the air delivered by the CPAP enters the esophagus and
stomach rather than the lungs. This can lead to painful stomach bloating,
gas and belching.
Possible Causes:
● The CPAP pressure may be higher than you require.
● The CPAP pressure may be too low and inadequate to resolve the apnea
event and in your effort to get more air into the lungs, you gulp air in
quickly.
● You may have nasal congestion from a cold, flu or allergies. When
your nose is stuffy, you may not be able to receive the CPAP pressure you
need so you gulp air by mouth.
● You may be a mouth breather. As your mouth falls open during sleep,
air intended to enter the lungs may escape via the mouth. This may cause
apnea events to not be resolved resulting to choking sensations and gulping
air in quickly.
● You may have difficulty exhaling against the pressure. This may cause
anxiety, panic and a feeling of choking which may cause you to
hyperventilate. This can result in quick gulping of air.
Solutions:
● Adjust the pressure setting.
● Switch to a full face mask if you’re a mouth breather or use a chin
strap.
● Turn the C-Flex/A-Flex/BIFLEX (Respironics) or EPR (ResMed) on which
allows the pressure to decrease slightly upon exhalation.
● Switch to a BIPAP machine.