Mustafa Tajaldeen Adnan, Tarique Khan Abbassi, Mohib Ullah, Abid Rashid, Azhar Hameed.
Frequency of Incus Bone Erosion on Mastoid Exploration in Chronic Suppurative Otitis Media with Middle Ear Cholesteatoma.
Pak J Med Health Sci Jan ;7(4):881-4.

Aim: To assess the frequency of incus bone erosion on mastoid exploration in chronic suppurative otitis media with middle ear Cholesteatoma. Study design: Cross-sectional descriptive study. Place of study and duration: Department of ENT Al-Hada Armed Forces Hospital, Taif Region, KSA and the Department of ENT Unit, Mayo Hospital Lahore affiliated with King Edward Medical University Lahore from 10th September, 2012 to 9thMarch, 2013 Sample technique: Non-probability purposive sampling. Methods: A total number of 60 patients presenting with chronic suppurative otitis media of with middle ear Cholesteatoma were studied prospectively. Surgeries were performed in the operation theater under General Anesthesia on all 60 patients. A standard questionnaire was prepared and the history, examination, laboratory data and treatment were recorded on it for each patient. Results: Chronic suppurative otitis media is a common ailment seen in the specialty of ear, nose and throat. Unsafe type of this disease previously known as atticoantral type usually presents with marginal perforation having cholesteatoma which is the hallmark of this affection and also considered as the complication producing element. A total number of sixty patients of chronic suppurative otitis media with middle ear cholesteatoma were included. Out of which 40(66.7%) were males and 20(33.3%) were females. Male to female ratio was 2:1. The patients shown in table 2 were divided in six age groups. In the first age group, patients aged 1-10 years 7(11.7%), in second age group, patients aged 11-20 years 30(50%), in third age group, patients aged 21-30 years 13(21.7%), in fourth age group, patients aged 31-40 years 3(5%), in fifth age group, patients aged 41-50 years 6(10%) and in the sixth age group, patients aged >50 years 1(1.6%). Mean ± standard deviation of age group was 21.2±11.9 years. The procedure of mastoidectomy was performed in 56 patients (93.3%) and modified radical mastoidectomy was performed in 4 patients (6.7%). Incus bone erosion in chronic suppurative otitis media with middle ear cholesteatoma in 51 patients (85%) and 9 patients (15%) have no incus bone erosion.

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