Etiologies

Effective

Percentage

Otomycosis

24

17.8

Malignant otitis externa

1

0.7

Superinfected traumatic tympanic perforation

4

3

Otorrhea on Trans-tympanic aerators

1

0.7

CMO mucosa with open eardrum

75

55.5

Cholesteatomatous CMO

11

8.1

Chronic otomastoiditis

16

11.8

Otomastoiditis complicated by meningoencephalitis

3

2.2

Total

135

100.00