In CSOM commonest operation done is
**Core Concept**
Chronic Suppurative Otitis Media (CSOM) is a chronic infection of the middle ear that can lead to significant morbidity if not managed properly. The management of CSOM involves both medical and surgical interventions, with the goal of eradicating the infection, preventing complications, and restoring hearing.
**Why the Correct Answer is Right**
The commonest operation done in CSOM is a **Mastoidectomy**. This surgical procedure involves the removal of infected mastoid air cells to prevent further spread of the infection and to ensure complete removal of the infectious focus. A mastoidectomy may be performed as an open cavity procedure or as a closed procedure, depending on the extent of the disease and the surgeon's preference. The goal of a mastoidectomy is to eliminate the infection, prevent recurrence, and improve hearing outcomes.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because a **Tympanoplasty** is a surgical procedure that involves repairing or replacing the eardrum and may be performed in conjunction with a mastoidectomy, but it is not the commonest operation done in CSOM.
**Option B:** This option is incorrect because an **Adenoidectomy** is a surgical procedure that involves removing the adenoids, which are gland-like tissues located at the back of the throat. While adenoidectomy may be performed in conjunction with a mastoidectomy in some cases, it is not the commonest operation done in CSOM.
**Option C:** This option is incorrect because an **Eustachian Tube Insertion** is a surgical procedure that involves inserting a tube into the Eustachian tube to help regulate air pressure in the middle ear. While this procedure may be performed in some cases of CSOM, it is not the commonest operation done.
**Clinical Pearl / High-Yield Fact**
A key point to remember is that the management of CSOM should be individualized and tailored to the specific needs of the patient. A thorough preoperative evaluation, including imaging studies and audiometry, is essential to determine the extent of the disease and to plan the appropriate surgical intervention.
**Correct Answer: C. Mastoidectomy**