[Intestinal invagination: change in its incidence from 1987 to 2008]

Some series have shown a decrease in the incidence of intestinal invaginations in last years. Moreover, the recent introduction of new types of rotavirus vaccines increases the interest of invagination' s incidence. To this purpose, reliable local epidemiological data are needed. In order to ascertain the trend in the incidence of invaginations and their current value in our area we have performed a retrospective review of patients under 3 years of age with the diagnosis of intussusception and confiemes with barium enema or ultrasound examination during the past 21 years. Our results show a statistically significant decrease in the incidence rate, with an incidence rate of one year from the previous 0.82 (95% 0,78-0, 86) from an estimated incidence for 1987 of 17.74 cases per 10,000 girls and 30.04 cases per 10,000 boys, in 2008 an estimated incidence of 0.27 cases per 10,000 girls and 0.49 cases per 10,000 boys. We conclude that in our population during the dtudy period a significant decrease of invagination' sincidence has been seen, especially in patients younger than one year. The current incidence is 0.27 cases per 10,000 girls and 0.49 cases per 10,000 boys less than 3 years old.