The incidence of hiatal hernia increases with age and occurs in approximately 10% of the adult population. In patients undergoing upper gastrointestinal x-ray examination, with abdominal compression hiatus hernia was diagnosed in half of the patients undergoing the study. Approximately 95-99% of all hiatal hernias are type I (sliding) are either asymptomatic or cause symptoms of reflux that are treated by medicines.
The hiatus is a normal opening in the muscle that separates the chest cavity from the abdomen which moves up and down with breathing. Although the hiatus is a normal opening, there are occasions when this opening enlarges and the stomach or other organs can slip up inside the chest. This occasion of an abnormally large opening of the hiatus is called a hiatal hernia. Paraesophageal hernias account for only 5% of all hiatal hernias. A paraesophageal hernia is a type of hiatal hernia where the junction of the stomach and the esophagus remains in place, but part of the stomach is squeezed up into the chest beside the esophagus.
From the back of the mouth (the pharynx) to the top of the stomach, the esophagus is a muscular tube for foods and liquids. It’s relatively tough and resilient as organs go, built to take most of the material human beings ingest. For the most part, it’s not a very complicated organ. Depending on the height of the person, it’s about 10 inches long (25 cm) and 1 inch in diameter (2-3 cm). The esophagus’ geography usually divides into three sections: cervical at the top, thoracic in the middle, and abdominal at the bottom.
The hiatus is a normal opening in the muscle that separates the chest cavity from the abdomen which moves up and down with breathing. Although the hiatus is a normal opening, there are occasions when this opening enlarges and the stomach or other organs can slip up inside the chest. This occasion of an abnormally large opening of the hiatus is called a hiatal hernia. Paraesophageal hernias account for only 5% of all hiatal hernias. A paraesophageal hernia is a type of hiatal hernia where the junction of the stomach and the esophagus remains in place, but part of the stomach is squeezed up into the chest beside the esophagus.
