MATERIALS AND METHODS
Patient selection and
inclusion/exclusion criteria
204 patients with middle ear cholesteatoma diagnosed by me from January
2018 to October 2019 were all the subjects of this study. The research
scheme approved by the appropriate institutional review committee is
taken as the scheme for this experiment. The criteria of this study are
mainly confirmed patients with chronic otitis media with cholesteatoma
in the upper tympanic cavity, aged 6-80 years, without maxillary sinus
or mastoid involvement. To confirm the disease, it is necessary to pass
preoperative high-resolution computed tomography (HRCT) of temporal bone
and otoendoscopy, and general anesthesia is necessary during operation.
We have followed the “Specifying the target difference in the primary
outcome for a randomised controlled trial: guidance for researchers”
reporting guidelines for the preparation of this paper.
All patients underwent pure tone audiometry, tympanometry, and
preoperative HRCT scans of temporal bone before surgery (Figure 1).
Thirteen patients with mastoid dilatation need to be thoroughly cleared
of diseases, and must be thoroughly treated by undergoing surgery under
the tube wall. In addition, the patients excluded from the research and
analysis were one case of lateral semicircular canal fistula found
during operation.
Patients who received EES and micro-otosurgery (MES) were randomly
divided into two groups by random number table. One of the randomized
sequences generated by a random number table is used to hide and
distribute sealed opaque envelopes. Among them, the author will perform
all cases of surgery to ensure the consistency of the study.