A Hiatus hernia refers to a condition when a part of the stomach (usually in the abdomen) slides up into the chest. This causes the usual mechanisms that stop stomach content from pushing back up into the oesophagus not to function properly. As a result, children often present with reflux symptoms. Hiatus hernias are more common in older children and adults.
Unlike other causes of reflux, hiatus hernias in children do not respond as well to medication and lifestyle changes. As a result, surgery is more commonly used to repair a hiatus hernia. This surgery is called a Fundoplication.