Monday, August 16, 2010

Strength-Training in Your Sleep: OSA Treatment Improves Body’s Ability to Fight Acid Reflux

A new study in the journal Sleep and Breathing found that obstructive sleep apnea (OSA) treatment may reduce gastroesophageal reflux (GER) by decreasing strain where the esophagus and stomach meet.

GER is characterized by symptoms such as heartburn and acid reflux. When awake, GER events are usually brief because of powerful mechanisms like swallowing.

When patients are asleep, these protective mechanisms end, resulting in longer GER events that increase risk of esophageal injury.

People with OSA exhibit an increase in both daytime and nighttime GER symptoms and events.

GER is usually prevented by the lower esophageal sphincter (LES). The LES is located between the esophagus and stomach. Baseline LES barrier pressure was low in these OSA patients. The results indicated that OSA may increase GER events as it strains the LES. CPAP treatment seemed to reduce this strain, consequently decreasing the events.

The study included eight patients with OSA and nocturnal GER. They each took a sleep study. The first half of the night was spent without treatment. The second half was spent with continuous positive airway pressure (CPAP).

When patients were off CPAP, they experienced an average of 2.7 GER events per hour and 70 obstructed respiratory events per hour. There was no direct relationship between the occurrence of GER and OSA events.

In April, Dr. Steven Park wrote a guest post for this blog. His post explained that OSA causes normal stomach juices to leak up into the throat, which not only causes arousal, but also causes swelling and inflammation in the throat. Dr. Park noted that too many spontaneous arousals may be a sign of upper-airway resistance syndrome or early OSA.

1 comment:

  1. We all hope that this exercise is good and that actually helps prevent and relieve back pain, since in health care indicate that poorly performed exercises may have consequences for the back.



The Official Blog of the American Academy of Dental Sleep Medicine (AADSM) is intended as an information source only. Content of this blog should not be used for self-diagnosis or treatment, and it is not a substitute for medical care, which should be provided by the appropriate health care professional. If you suspect you have a sleep-related breathing disorder, such as obstructive sleep apnea (OSA), you should consult your personal physician or visit an AASM-accredited sleep disorders center. The AADSM, and the American Academy of Sleep Medicine, as the managing agent of the AADSM, assume no liability for the information contained on the Official Blog of the AADSM or for its use.