In this study, the investigators tried to show the effect of remifentanil on emergence delirium caused by sevoflurane used in general anesthesia.We planned a retrospective study. We formed two groups of 80 participants. One group included patients who were received remifentanil infusion during general anesthesia.The other group included patients who were received only sevoflurane inhalation anesthesia.

The patients included in the study were evaluated for emergence delirium in the postoperative period be evaluating the past recorded informations.

Inclusion Criteria American Society of Anesthesiologists score 1-2

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Exclusion Criteria:

• neurological disease, psychiatric illness

All patients between 2 and 6 years old having American Society of Anesthesiologists score 1-2.