Flashcards in HIATUS HERNIAS Deck (12)
What is a hiatus hernia?
Protrusion of upper part of stomach into the thorax through a weakness or tear in the diaphragmatic hiatus.
What are the different types of hiatus hernia?
Sliding hiatal hernia
Paraoesophageal (rolling) hernia
What is a sliding hiatus hernia?
The cardiac sphincter moves up into the thorax through the diaphragmatic hiatus along with the upper part of the stomach.
What is a paraoesophageal (or rolling) hiatus hernia?
The cardiac sphincter doesn't necessarily come through the diaphragm but part of the upper stomach makes its way into the thorax next the oesaphagus through the diaphragmatic hiatus.
What are the risk factors for developing a hiatus hernia?
Increased pressure within the abdomen caused by:
Heavy lifting or bending over
Frequent or hard coughing
Diaphragmatic laxity caused by:
Connective tissue disorders
Which type of hiatus hernia is more common, rolling or sliding?
Sliding hiatal hernias make up 95% of hiatal hernias
Are rolling hiatal hernias more common in males or females?
Which cells are responsible for the secretion of gastric acid?
What are the three receptors involved in increasing gastric acid secretion?
H2 (Histamine receptor)
Muscarinic (ACh) receptor
What is the receptor involved in reducing gastric acid secretion and how does it work?
Block signals from H2 receptors
What do alginates do?
Alginates protect the lining of the oesopaghus