[Observation of the short-term effect of tympanoplasty（type Ⅰ） in dry and wet ears with chronic otitis media].

Objective

To explore the difference of short-term effect of transear endoscopic tympanoplasty （type Ⅰ） in the dry and wet ear of chronic otitis media.

Methods

Patients with chronic suppurative otitis media were prospectively recruited in the Department of Otorhinolaryngology Head and Neck Surgery, Shaanxi Provincial People's Hospital from July 2018 to July 2020. Two otoscopicians independently judged the condition of tympanic membrane and tympanic mucosa before operation. One hundred and ten patients were divided into dry ear group （n=78） and wet ear group（n=32）. The healing rate of tympanic membrane and the degree of hearing improvement were recorded at postoperative 1 month, 3 months and 6 months.

Results

Six months after operation, the healing rate of dry ear group was 97.4% （76/78）, and that of wet ear group was 96.9%（31/32） 6 months after operation, there was no significant difference in tympanic membrane healing rate between the two groups （P>0.05）. The hearing of the patients in both groups was improved, and the air conduction hearing in the dry ear group increased by （10.57±8.73） dB, and decreased by （6.44±4.98） dB after operation. In the wet ear group, the air conduction hearing increased by （8.91±11.79） dB, and decreased by （6.89±6.99） dB after operation. There was no significant difference in the degree of hearing improvement between the two groups（P>0.05）.

Conclusion

For quiescent chronic otitis media without ossicular chain lesions, the preoperative wet ear state is not a taboo in tympanoplasty （typeⅠ）, and the postoperative tympanic membrane healing rate and hearing improvement are the same as those in dry ear surgery, and can reduce the preoperative waiting time of patients, reduce the use of antibiotics.