[Risk Factors for Postoperative Recurrence of Chronic Suppurative Otitis Media]

Objective To analyze the risk factors for postoperative recurrence of chronic suppurative otitis media(CSOM) and explore the intervention measures to prevent postoperative recurrence of CSOM. Methods A total of 1066 patients with CSOM who underwent concurrent surgical treatment and achieved clinical cure in our hospital from January 2012 to December 2018 were enrolled.The clinical data and laboratory findings were reviewed by using an electronic medical record system and the patients were followed up for 1 year.The patients were divided into the non-recurrent group and the recurrent group.Chi-square test and multivariate logistic regression were used to compare the factors may contribute to the postoperative recurrence. Results The recurrence rate of CSOM was 6.38%.Multi-drug-resistant(MDR) infection before surgery(χ ²=16.338,P=0.000),aged ≥60 years(χ ²=5.182,P=0.023),frequency of occurrence ≥3 times/year(χ ²=4.388,P=0.036),duration of active period>7 d(χ ²=4.729,P=0.030),repeated upper respiratory tract infection>3 times/year(χ ²=11.913,P=0.001),accompanied by chronic sinusitis(χ ²=11.077,P=0.001),blood glucose>6.11 mmol/L(χ ²=15.327,P=0.000),postoperative serum procalcitonin(PCT)>0.5 μg/L(χ ²=8.337,P=0.004) were the risk factors for postoperative recurrence.The use of snorkel was a protective factor for postoperative recurrence(χ ²=5.308,P=0.021).Multivariate analysis showed that MDR infection(OR=3.373,95%CI:1.825-6.234,P=0.000),repeated upper respiratory tract infection>3 times/year(OR=2.727,95%CI:1.479-5.030,P=0.001),accompanied by chronic sinusitis(OR=2.980,95%CI:1.654-5.369,P=0.000),blood glucose>6.11 mmol/L(OR=3.219,95%CI:1.741-5.953,P=0.000),and postoperative serum PCT>0.5 μg/L(OR=2.085,95%CI:1.106-3.931,P=0.023) were independent risk factors for postoperative recurrence in CSOM patients. Conclusions Effective prevention and control of MDR infection,control of blood sugar,prevention of upper respiratory tract infection,and lowering the recurrence of chronic sinusitis are the main measures to reduce postoperative recurrence of CSOM.Monitoring of the infection marker PCT can help to achieve early intervention.