[The clinical picture of acute appendicitis in children].

The authors describe 3860 child patients operated on account of acute appendicitis and analyse the data with regard to age, sex, year of incidence and surgical finding. The highest incidence of acute appendicitis is between 8 and 11 years with a peak at the age of 10 years. It is more frequent in boys (58.3%) than in girls (43.7%), the ratio being 1.3:1. It occurs more often during the cold months (46.5%), in autumn (27.3%) and in winter (25.7%). The number of gangrenous appendicitis is 34.7%-56.7% in boys and 43.5% in girls. The highest rate of missed appendicitis is at the age of the highest incidence (15.2%) with a peak at the age of 10 years (17.8%) and in January (13.3%). The highest incidence of perforated appendicitis is also at the age of the highest incidence (14.9%) with the peak at the age of 8 years (15.6%) and in June (13.5%). Perforation is more frequent in boys (58.1%) than in girls (49.9%). The number of "negative" appendicitis is 15.8%. Prevention of acute appendicitis still remains open due to lack of knowledge of its etiopathogenesis.