Supragastric Belching

Supragastric belching (SGB) is a behavioral disorder where a person unintentionally sucks or pushes air into the esophagus and immediately expels it, leading to frequent, repetitive belching. Unlike a typical gastric belch, which involves air coming up from the stomach, supragastric belching involves air that never actually reaches the stomach. This often occurs in "bouts" and can happen dozens of times a minute. It is frequently associated with stress or anxiety and is often an unconscious response to a perceived sensation of abdominal discomfort or "fullness."

The diagnosis is usually confirmed using esophageal pH-impedance monitoring, which can distinguish between air coming from the stomach and air being moved in and out of the esophagus. Because SGB is a learned behavior rather than a digestive disease, medications like PPIs or gas-relief pills are generally ineffective. The most successful treatment is Speech Therapy or Cognitive Behavioral Therapy (CBT). Patients are taught to recognize the warning signs of a belch and use "competing behaviors," such as open-mouth breathing or diaphragmatic breathing, to prevent the air from being sucked in. With practice, the reflex can be broken, and the frequency of belching can be drastically reduced.