At the junction between the oesophagus and the stomach there is a closing mechanism that keeps food and stomach juices in the stomach. If it does not work reliably, acidic contents rise again and again. Typical symptoms are heartburn, a burning sensation behind the breastbone, and acid regurgitation, often after eating or when lying down. Some people notice coughing, hoarseness or pressure when swallowing instead. Doctors speak of reflux disease when the symptoms noticeably affect everyday life or the lining is damaged.
Often the cause is a hiatus hernia. The oesophagus passes through an opening in the diaphragm, the hiatus, into the abdomen. If this gap widens, the entrance to the stomach slides a little way up into the chest, and the closing mechanism loses the support of the diaphragm. Less often, part of the stomach pushes up alongside the oesophagus – in extreme cases almost the whole stomach. Such large hernias often cause pressure after eating, a feeling of fullness or difficulty swallowing.
Treatment usually starts with general measures and acid-reducing medication. If you are overweight, losing weight can make a big difference; for symptoms at night, raising the head of the bed and avoiding late meals help. According to the current guideline, surgery is an option if reflux has been confirmed for a long time, if there are complications such as severe inflammation or a narrowing, or if medication is not tolerated or does not help enough. Large hernias alongside the oesophagus that cause symptoms should be operated on.
As a rule, the operation is performed as keyhole surgery. The part of the stomach that has slipped up is moved back into the abdomen, and the widened gap in the diaphragm is narrowed with stitches – the hiatoplasty. The upper part of the stomach is then wrapped around the end of the oesophagus as a cuff – the fundoplication: all the way round in the Nissen technique or about three quarters of the way round in the Toupet technique. Which form is suitable also depends on how strongly the oesophagus contracts.