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Updated: Jan 10, 2026

Endoscopic Cholesteatoma Surgery
Published on: January 19, 2022
A case-control study on preauricular congenital fistula surgery outcomes by Propensity Score Matching (PSM) analysis
Jibing Sun1, Tingting Wang1, Dong Chen1
1Shandong Provincial ENT Hospital, Shandong University, Department of Otoplasty, Jinan City, Shandong Province, China.
Objective:
To explore the propensity matching score to compare the clinical efficacy of infection localized and inflammatory quiescent stage I surgery in the treatment of congenital preauricular fistula.
Methods:
120 patients with congenital preauricular fistula treated in our hospital from January 2022 to August 2023 were selected. The patients were divided into infection limited group (n = 63) and inflammation rest group (n = 57) according to the mode of operation. The two groups were matched at 1:1 with Propensity Score Matching (PSM) method, and finally included in infection limitation group and inflammation rest group (n = 50). Patients in both groups were treated with stage I operation.
Results:
Before PSM, there were significant differences between the two groups in terms of gender, age, BMI, and the number of patients with previous infection requiring incision and drainage (p < 0.05). After PSM, there were no statistically significant differences in general information between the two groups (p > 0.05). There was no significant difference in healing, incidence of postoperative complications and recurrence rate between the two groups (p > 0.05).
Conclusion:
There is no significant difference in the clinical efficacy comparison of surgical treatment for congenital preauricular fistula between the infection-localized phase and inflammation-quiescent stage I surgery with PSM.
Level Of Evidence:
Level 3.

