The muscle of the diaphragm is made up of a complex of fibres attached right around the trunk, going in many directions and making up the sheath of the muscle between the lungs and the abdomen. Where structures such as the oesophagus and large blood vessels pass through between the chest to the abdomen, the muscles split to allow passage. In a number of people the hole is slightly too large and organs – almost always the stomach, can slip through the defect up into the chest. The main effect and symptom of this is stretching the muscle valve that stops acid passing back up the oesophagus so that it regurgitates to the mouth. Ordinary indigestion is seldom a symptom of Hiatus hernia and would be very unlikely to be cured by repairing the diaphragm. The majority of Hiatus Hernia are symptomless.
Interx will be beneficial with post operative care.