[One-stage operation surgical efficacy observation of congenital preauricular fistula infection and static period of inflammation in children].

To compare the clinical effect of surgical treatment of congenital preauricular fistulas in children during the local infection period and static inflammatory period. Forty children with congenital preauricular fistula infection treated in our hospital from January 2020 to December 2022 were selected as the experimental group, and 39 children with congenital preauricular fistula inflammation at static period were selected as the control group. The fistula of the two groups of children aged between 1-14 years old was located in front of the foot of the ear wheel or the foot of the ear wheel, and all were unilateral fistulas. The postoperative follow-up was 6 months to 2 years, and the efficacy of the two groups was compared. There was no significant difference in the healing rate of stage Ⅰ and stage Ⅱ between the two groups（>0.05）. There was no significant difference in fistula recurrence rate and satisfaction with the preauricular scar between the two groups after treatment（>0.05）. There was no significant difference in postoperative hospital stay between the experimental group and the control group（>0.05）. The effect of surgical treatment of congenital preauricular fistula in the infected period is similar to that of surgical treatment in the static period of inflammation, and it can reduce the pain of dressing change under local anesthesia in children, avoid the second operation in children, and reduce the economic cost. This treatment method is worthy of clinical promotion. Appropriate incision and resection method were designed according to the fistula and infection sites.