Abstract: Objective:To discuss the causes of infantile convulsion, clinical features, incidence trend and prevention strategies.
Methods:A retrospective analysis was performed on the clinical data of 1 058 cases of infantile convulsion admitted to our hospital between January 2013 and December 2015.
Results:Among 1 058 cases of infantile convulsion, the ratio of male to female was 1.4∶1,the average onset age was (3.0±1.6) years, and the peak incidence appeared between the age of 1 and 3.In the three years, the proportion of children visiting hospital for infantile convulsion was increasing. The attack of the disease came in almost every season; especially during the second quarter and the fourth quarter, there was an increasing trend（P<0.05）.Among the 1 058 cases, there are 820 children(77.5%) suffering from infant febrile convulsion, among which there are 626 cases(59.2%) of simple convulsion and 194 cases(18.3%) of complex febrile convulsion. The most common risk factors of febrile convulsion were virus infection, vaccination and positive family history. The five most common infectious diseases and their proportions in child patients were as follows: acute upper respiratory infection(30%),acute tonsillitis(25.5%), herpangina(10.6%), bronchial pneumonia(3.2%) and exanthema subitum(3.2%).Among these causes, febrile convulsion, acute gastroenteritis with benign convulsion and intracranial infection were the main causes of convulsion before the age of six; after six, the main cause was epilepsy.
Conclusion:In the three years, the number of infantile convulsion has been increasing, and the causes of infantile convulsion are not only diverse but also complex. Therefore, it is significant to build family intervention strategies to reduce brain damage.

Key words: Convulsion, Cause analysis, Clinical characteristics, Prevention strategies