[Modified radical mastoidectomy on"drum sinus" type chronic suppurative otitis media:our experience]

Area of Science:

• Otolaryngology
• Surgical Innovation
• Otitis Media Research

Background:

• Chronic suppurative otitis media (CSOM) presents unique challenges, particularly the "drum sinus" type.
• Accurate diagnosis and surgical criteria are crucial for effective treatment of CSOM.
• Understanding anatomical variations like tympanic sinus size is key in mastoidectomy procedures.

Purpose of the Study:

• To evaluate the efficacy of modified radical mastoidectomy in treating "drum sinus" type CSOM.
• To establish diagnostic criteria for the "drum sinus" condition.
• To assess surgical outcomes and complications following epitympanum approach tympanoplasty.

Main Methods:

• Measurement of tympanic sinus size, meningeal plate lowering, and sigmoid sinus displacement in 54 CSOM patients.
• Application of defined criteria to select patients for modified radical mastoidectomy and tympanoplasty.
• Post-operative follow-up for at least 3 months, recording ear dryness, tympanic membrane healing, and complications.

Main Results:

• Twenty-nine of 54 patients met the "drum sinus" criteria; 27 completed the study.
• Post-operative dry ear rate was 81.5% at 3 months.
• Successful tympanic membrane repair occurred in 77.8% of patients, with only three cases of post-operative dizziness and no facial paralysis or CSF leakage.

Conclusions:

• Modified radical mastoidectomy combined with tympanoplasty via epitympanum approach is a viable treatment for "drum sinus" CSOM.
• The established criteria aid in identifying suitable candidates for this surgical technique.
• The procedure demonstrates a favorable safety profile with significant rates of symptom resolution and anatomical repair.