What is Intestinal Invagination?
Intestinal invagination is the introduction of a portion of the intestine into the lumen of a nearby segment, which causes obstruction of the intestine and, in some cases, ischemia.
In most cases, this diagnosis is given to children 3 months to 3 years old. About 65% of cases occur in patients under the age of 12 months. Intestinal intestinal invagination becomes the most common cause of intestinal obstruction in infants; in them, obstruction is usually idiopathic.
Causes of Intestinal Intestination
The exact causes of invagination in infants up to 12 months of age have not been elucidated. Invagination often appears after inflammation of the mucous membrane of the stomach and intestines, as well as after a cold in a child. An intestinal upset may occur after the introduction of complementary foods containing fruit and / or vegetable elements in the composition. This is because fiber enhances intestinal motility, which can lead to intussusception.
In older children, several factors can provoke the disease, for example, intestinal anomalies, including volumetric formation:
- Shenlein-Genoch disease
- Meckel diverticulum
Among the risk factors, a disease such as cystic fibrosis in children is distinguished. In infants, there are structural features of the ileocecal section of the intestine, which are called predisposing factors for the development of intestinal invagination. They have a common mesentery, the cecum and ileum are mobile, there is a mismatch between the diameter of the ileum and its “ampoule”, the valvular apparatus of the bauginium valve is underdeveloped. These data were described by Teryovsky in 1955, Dyakin in 1972 and Feldman in 1977.
V. M. Dyakin in his works, which are based on 198 studies, notes that at the time of birth the formation of the ileocecal section of the intestine is not complete, it develops as the baby grows older.
Among factors, risk is also called alimentary:
- thick or rough food
- introduction of complementary foods
- a large amount of food that is given to the baby.
Pathogenesis during Intestinal Invagination
The leading factor in the pathogenesis of intestinal invagination is the development of intestinal obstruction, as well as impaired local blood flow. As a result of this, ischemia, gangrenous processes, perforations develop.