Changes

==Risk factors==

==Risk factors==

The exact aetiology of the condition is unknown but a number of risk factors have been identified. Studies have shown that dogs with a reduced thoracic width to depth ratio are at an in increased risk of developing GDV. Female dogs are also more likely to develop GDV than males. Other risk factors include obesity, feeding a dry food diet and exercise after feeding. Stressed, anxious dogs are more likely to develop GDV than calm, placid dogs.

The exact aetiology of the condition is unknown but a number of risk factors have been identified. Studies have shown that dogs with a reduced thoracic width to depth ratio are at an in increased risk of developing GDV. Female dogs are also more likely to develop GDV than males and stressed, anxious dogs are more likely to develop GDV than calm, placid dogs. Other risk factors include obesity, feeding a dry food diet and exercise after feeding.  

 

==Pathogenesis==   

==Pathogenesis==   

An obstruction to gastric emptying due to fluid or gas leads to gastric distention and a rapid increase in intra-gastric pressure. As the stomach dilates, the pylorus shifts through an angle of between 180 and 360^o from its normal position to a dorsal, cranial and leftward location. More than 90% of all gastric volvuli rotate in a clockwise direction when viewed from the surgeon's perspective with the dog in dorsal recumbency.

An obstruction to gastric emptying due to fluid or gas leads to gastric distention and a rapid increase in intra-gastric pressure. As the stomach dilates, the pylorus shifts through an angle of between 180 and 360^o from its normal position to a dorsal, cranial and leftward location. More than 90% of all gastric volvuli rotate in a clockwise direction when viewed from the surgeon's perspective with the dog in dorsal recumbency.