Table 3 Probable cause of SNHL and pattern of audiogram
From: Discussion and expostulations on postoperative worsening of hearing following middle ear surgeries
Case no. | Disease | Treatment | Probable cause of SNHL | Post-op pattern of audiometry |
|---|---|---|---|---|
1 | COM squamous | ICW mastoidectomy with type III tympanoplasty | Disease clearance/manipulation/drilling | High frequency loss, right sloping curve |
2 | COM squamous | ICW mastoidectomy with type III tympanoplasty | Manipulation | High frequency |
3 | COM Mucosal | CM with type III tympanoplasty | ? otorrhoea | All frequencies involved, flat curve |
4 | COM squamous | Modified radical mastoidectomy | Disease clearance/drilling | All frequencies, tinnitus |
5 | COM granulations with tympanosclerosis | Modified radical mastoidectomy | Ossicular manipulation | High frequencies |
6 | COM squamous | Type III tympanoplasty with TORP | Ossicular manipulation | High frequencies, tinnitus |
7 | COM squamous | ICW mastoidectomy with type III tympanoplasty | Unexplained | High frequency |
8 | COM mucosal | ICW mastoidectomy with type I tympanoplasty | ??? infection | All frequencies |