pediatrics
Intussusception
Etiology of Intussusception
Most cases are idiopathic. The most common type of intussusception is the ileocolic type. There is a slight male predominance as well as a seasonal variation; peak incidence coincides with the viral enteritis season. An olderrotavirus vaccinewas associated with a marked increase in risk of intussusception and was taken off the market in the United States. The newer rotavirus vaccines, when given in the recommended sequence and timing, are not associated with any clinically significant increased risk. In about 25% of children who have intussusception, typically very young and older children, a lead point (ie, a mass or other intestinal abnormality) triggers the telescoping. Examples include Polyps of the Colon and Rectum , 