Evaluation of Hearing Status in Pre and Postoperative Canal Wall Down Mastoidectomy with Type III Tympanoplasty with or without Cartilage Augmentation

  • Mohammad Hanif Assistant Professor of ENT, National Institute of ENT, Tejgaon, Dhaka, Bangladesh
  • Md Zahedul Alam Professor & Chief consultant of ENT & Head-Neck Surgery Department, Asgor Ali Hospital, Dhaka, Bangladesh
  • Kamrul Hassan Tarafder Professor, Department of Otolaryngology and Head-Neck Surgery, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh
  • Md Rojibul Haque Professor and Head of the Department of Otolaryngology and Head-Neck Surgery, US- Bangla Medical College & Hospital, Dhaka, Bangladesh
  • Mohammad Shaharior Arafat Assistant Professor, Department of ENT & Head-Neck Surgery, Dhaka Medical College and Hospital, Dhaka, Bangladesh
  • Mohammad Mostafizur Rahman Assistant Professor, Department of ENT & Head-Neck Surgery, Kustia Medical College and Hospital, Kustia, Bangladesh
Keywords: Air-bone Gap, Chronic otitis media, Canal Wall Down Mastoidectomy, Type III Tympanoplasty

Abstract

Objective: To evaluate Hearing Status in Pre and Post-operative Canal Wall Down Mastoidectomy with Type III Tympanoplasty with or without cartilage augmentation.

Methods: This was a prospective study, done in Otolaryngology & Head Neck Surgery department of Sir Salimullah Medical College Mitford Hospital(SSMCMH) and Bangabandhu Sheikh Mujib Medical University(BSMMU) , Dhaka, Bangladesh. 1stJuly to 31st December, 2012. Forty patients were studied in this series.

Results: The results concluded that mean pre and post-operative air bone gap were 38.5 dB and 29.69 dB respectively with a net gain of 8.81 dB in Canal wall down mastoidectomy with cartilage augmented Tympanoplasty type III which is statistically significant. The postoperative PTA-ABG ranged from 25-36 dB , the ABG closure was 11-15 dB in 40% case. Whereas mean pre and post-operative air bone gap were 37.19 dB and 34.19 dB respectively with a net gain of 3 dB in Canal wall down mastoidectomy without cartilage augmented Tympanoplasty type III which is statistically insignificant. The post-operative PTA-ABG ranged from 26.25-41.75 dB, the ABG closure was 0-5 dB in 35% case.

Conclusion: Hearing results after cartilage augmentation in type iii Tympanoplasty showed improvement at individual and mean post-operative PTA-ABG and also improvement in ABG closure suggesting thin cartilage disc increased the effective vibrating area of tympanic membrane graft.

Bangladesh J Otorhinolaryngol; October 2020; 26(2): 86-94

Downloads

Download data is not yet available.
Abstract
195
PDF
180
Published
2020-12-09
How to Cite
Hanif, M., Alam, M. Z., Tarafder, K., Haque, M. R., Arafat, M. S., & Rahman, M. M. (2020). Evaluation of Hearing Status in Pre and Postoperative Canal Wall Down Mastoidectomy with Type III Tympanoplasty with or without Cartilage Augmentation. Bangladesh Journal of Otorhinolaryngology, 26(2), 86-94. https://doi.org/10.3329/bjo.v26i2.50607
Section
Original Articles