TY - JOUR AU - Hanif, Mohammad AU - Alam, Md Zahedul AU - Tarafder, Kamrul Hassan AU - Haque, Md Rojibul AU - Arafat, Mohammad Shaharior AU - Rahman, Mohammad Mostafizur PY - 2020/12/09 Y2 - 2024/03/29 TI - Evaluation of Hearing Status in Pre and Postoperative Canal Wall Down Mastoidectomy with Type III Tympanoplasty with or without Cartilage Augmentation JF - Bangladesh Journal of Otorhinolaryngology JA - Bangladesh J of Otorhinolaryngology VL - 26 IS - 2 SE - Original Articles DO - 10.3329/bjo.v26i2.50607 UR - https://www.banglajol.info/index.php/BJO/article/view/50607 SP - 86-94 AB - <p><strong>Objective: </strong>To evaluate Hearing Status in Pre and Post-operative Canal Wall Down Mastoidectomy with Type III Tympanoplasty with or without cartilage augmentation.</p><p><strong>Methods: </strong>This was a prospective study, done in Otolaryngology &amp; 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.</p><p><strong>Results: </strong>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.</p><p><strong>Conclusion: </strong>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.</p><p>Bangladesh J Otorhinolaryngol; October 2020; <strong>26</strong>(2): 86-94</p> ER -