scholarly journals Comparison of Pre and Postoperative Hearing Results after Cartilage Augmentation Type III Tympanoplasty

1970 ◽  
Vol 1 (2) ◽  
pp. 3-5
Author(s):  
BL Shrestha ◽  
H Bhattarai ◽  
CL Bhusai
Keyword(s):  
Canal Wall ◽  
Hearing Results ◽  
Type Iii ◽  
Canal Wall Down ◽  
Canal Wall Down Mastoidectomy ◽  
Head Neck

Keywords: Air bone gap; chronic media (squamous); canal wall down mastoidectomy; cartilage augmentation type III tympanoplastyDOI: 10.3126/njenthns.v1i2.4752 Nepalese J ENT Head Neck Surg Vol.1 No.2 (2010) p.3-5

scholarly journals Evaluation of Results of Cartilage Augmentation in Type III Tympanoplasty

2017 ◽  
Vol 25 (3) ◽  
pp. 119-123
Author(s):  
Netra Aniruddha Pathak ◽  
Vidya Vasant Rokade
Keyword(s):  
Pure Tone ◽  
Chronic Otitis Media ◽  
Pure Tone Audiometry ◽  
Canal Wall ◽  
Hearing Results ◽  
Type Iii ◽  
Mixed Hearing Loss ◽  
Canal Wall Down ◽  
Canal Wall Down Mastoidectomy ◽  
Conventional Type

Introduction In conventional Type III tympanoplasty, post operative air-bone gap (ABG) is around 10-60dB. This study aimed to assess the hearing results in patients undergoing canal wall down mastoidectomy with cartilage augmented type III tympanoplasty.  Materials and Methods Patients of 6-50 years of age with the diagnosis of Chronic Otitis Media (Squamous) with conductive or mixed hearing loss, requiring canal wall down mastoidectomy and with intact and mobile stapes suprastructure at surgery who underwent cartilage augmentation were included in the study. Pure tone audiometry (PTA) was performed and evaluated. Post- operative hearing was assessed in terms of average air bone gap (ABG) and size of ABG closure.  Results The results concluded that mean of pre and post operative air bone gap were 37.5db and 29.7db respectively with net gain of 7.8db.These differences were significant. Also ABG closure was within 30 db in 28 cases (70%). Discussion The results of this study were compared with other reported series. The mechanical and acoustical aspects of canal wall down surgeries as also the probability of variation in results due to differences in surgical procedures and post-operative fibrosis have been mentioned.   Conclusion There was significant improvement in postoperative hearing after stapes head augmentation in type III tympanoplasty.

scholarly journals Comparison of Pre and Post-operative Hearing Results in Canal Wall Down Mastoidectomy with Type III Tympanoplasty

2008 ◽  
Vol 47 (172) ◽  
Author(s):  
Bikash Lal Shrestha ◽  
CL Bhusal ◽  
H Bhattarai
Keyword(s):  
Hearing Loss ◽  
Otitis Media ◽  
Chronic Otitis Media ◽  
Classical Type ◽  
Canal Wall ◽  
Hearing Results ◽  
Type Iii ◽  
Canal Wall Down ◽  
Canal Wall Down Mastoidectomy

This study was done to compare the pre and post-operative hearing results in patients undergoingcanal wall down mastoidectomy with classical type III tympanoplasty using temporalis fasciaalone.Patients of ≥5 years age with the diagnosis of Chronic otitis media (squamous) with conductive ormixed hearing loss, needing canal wall down mastoidectomy and with intact and mobile stapessuprastructure at surgery who underwent classical type III tympanoplasty were included in thestudy. The pre and post-operative PTA was performed and evaluated. The post-operative hearingwas assessed in terms of average ABG and size of ABG closure.Mean pre and post-operative air bone gap in classical type III tympanoplasty were 37.8 dB and 29.8dB respectively and these differences were statistically significant. The postoperative PTA-ABGranged from 15-61.2 dB.Hearing results after type III tympanoplasty varied widely showing statistically significantimprovement in mean post-operative PTA-ABG but there was a great variation.Key words: air bone gap, chronic otitis media, mastoidectomy, tympanoplasty

scholarly journals Outcomes of Canal Wall Down Mastoidectomy following Type III Tympanoplasty

2021 ◽  
Vol 27 (2) ◽  
pp. 145-151
Author(s):  
Shoukat Ali ◽  
SM Masudul Alam ◽  
KM Nurul Alam ◽  
KM Mamun Morshed ◽  
Sirajul Islam Mahfuz ◽  
...  
Keyword(s):  
Care Center ◽  
Demographic Data ◽  
Tertiary Care ◽  
Canal Wall ◽  
Short Term ◽  
Recurrence Rates ◽  
Type Iii ◽  
Canal Wall Down ◽  
Canal Wall Down Mastoidectomy

Objectives: To see the hearing outcomes following Type III tympanoplasty with stapes columella grafting after canal wall down mastoidectomy and find out the recurrence rates in patients undergoing this procedure. Methods: This prospective observational study includes 120 cases undergoing Type III tympanoplasty with stapes columella grafting following canal wall down mastoidectomy for cholesteatoma at a tertiary care center from 2018 to 2020. Patient charts were reviewed for demographic data, diagnosis, and operative details. Patients were included in statistical analysis if they were found to have undergone the aforementioned procedure. Evaluation of hearing improvement was made by comparing preoperative air-bone gap (ABG) and ABG at follow-up at 6 months and 1 year postoperatively. Results: One hundred and twenty patients were included for this study. Erosion of the otic capsule, posterior fossa plate, or tegmen was noted in 20% of cases, highlighting disease severity. One hundred and two (85%) had undergone prior otologic surgery. Mean time to short-term follow-up was 6 ± 3 months. The average short-term ABG was 25 ± 12 dB HL; 36% achieved an ABG <20 dB and thirteen had follow-up at least 1 year postoperatively (mean = 33 ± 16 months). At longer-term follow-up, mean ABG was 24 ± 11 dB HL. Hearing remained stable over time (P = .26). Conclusion: In some patients undergoing canal wall down mastoidectomy for advanced or recurrent cholesteatoma, Type III tympanoplasty with stapes columella grafting yields marginal hearing benefit. Bangladesh J Otorhinolaryngol 2021; 27(2): 145-151

scholarly journals Study of Hearing Status After Canal Wall Down Mastoidectomy with Type-III Tympanoplasty

2020 ◽  
Vol 23 (1) ◽  
pp. 52-58
Author(s):  
Utpal Kumar Dutta ◽  
Md Monjurul Alam ◽  
Nasima Akhter ◽  
Kanu Lal Saha ◽  
Md Abul Hossain ◽  
...  
Keyword(s):  
Pure Tone ◽  
Pure Tone Audiometry ◽  
Neck Surgery ◽  
Hearing Level ◽  
Canal Wall ◽  
Cross Sectional ◽  
Type Iii ◽  
Hearing Status ◽  
Canal Wall Down ◽  
Canal Wall Down Mastoidectomy

Objective: To observe hearing status in case of canal wall down mastoidectomy with type III tympanoplasty. Methods: This was a cross sectional study which was carried out in the departments of Otolaryngology and Head-Neck surgery of Bangabondhu Sheikh Mujib Medical University during the period of July’ 2011 to March’ 2012.A Total 38 patients having cholesteatoma underwent canal down mastoidectomy with type III tympanoplasty,were included in this study. Patients were divided into two groups according to their age. Age belonged to 18 years and more than 18 years were considered as child and adult respectively. Patients were examined thoroughly and preoperative hearing level was assessed by pure tone audiometry one one week before operation. Post operative patients were followed up at regular intervals. Pure tone audiogram (PTA) was done after 8 weeks and hearing assessment was compared by closure of air bone gap. Results: In this study majority of patients were within 13-17 years in child group and 18- 35years in adult group. Most of patients were male.Closure of air-bone gap was significantly higher in adults. Improvement of hearing status was more in adults. Conclusion: CWD mastoidectomy with tympanoplasty not only lowers recurrence rate but also improves hearing status although less likely in child and younger age group than adults. Bangladesh J Otorhinolaryngol; April 2017; 23(1): 52-58

scholarly journals Surgical and audiological outcome of canal wall down mastoidectomy in Sub Himalayan region: our experience

2017 ◽  
Vol 5 (10) ◽  
pp. 4426
Author(s):  
Kuldeep Thakur ◽  
Ajay Ahluwalia ◽  
Vikas Deep Gupta
Keyword(s):  
Hearing Threshold ◽  
Mastoid Cavity ◽  
Canal Wall ◽  
Type Iii ◽  
Type Iv ◽  
Post Surgery ◽  
Maximum Improvement ◽  
Group A ◽  
Canal Wall Down ◽  
Canal Wall Down Mastoidectomy

Background: Pre-operative and post-operative hearing status and status of mastoid cavity were compared in patients undergoing canal wall down mastoidectomy (CWDM) with tympanoplasty.Methods: Forty-three patients who underwent surgery and completed their follow up post-surgery were included in the study. Nineteen patients underwent CWDM with type III tympanoplasty with PORP, 7 patients underwent CWDM with type III tympanoplasty without PORP and 17 patients underwent CWDM with type IV tympanoplasty with TORP.Results: Among enrolled patients, 21 patients were females and 22 patients were male. Right ear (29) was commonly involved than left ear (14). Hearing loss was predominant symptom followed by recurrent ear discharge and other symptoms. Patients underwent three types of surgeries, type III tympanoplasty with PORP (19/43), type III tympanoplasty without PORP (7/43) and type IV tympanoplasty with TORP (17/43) by using Teflon prosthesis.Conclusions: Thirty seven percent (16/43) of patients had hearing threshold <25 dB post-surgery with maximum improvement in group A 47% (9/19). Forty seven percent (20/43) patients had hearing threshold between 26-40 dB with maximum improvement in group B 43% (3/7). Twelve percent (5/43) patients had hearing threshold between 41-60dB with almost equal improvement in all three groups. Five percent (2/43) of patients had >60dB hearing threshold, all belonging to group C. Anatomical results were assessed by examining the mastoid cavity showing 95%, 72%, 70% patients in group A, B and C had well epithelialized cavity.

Acoustic Mechanisms

1998 ◽  
Vol 118 (6) ◽  
pp. 751-761 ◽  
Author(s):  
KENNETH R. WHITTEMORE ◽  
SAUMIL N. MERCHANT ◽  
JOHN J. ROSOWSKI
Keyword(s):  
Middle Ear ◽  
Sound Transmission ◽  
Canal Wall ◽  
Air Space ◽  
Canal Wall Down ◽  
Canal Wall Down Mastoidectomy ◽  
Temporal Bones ◽  
Head Neck ◽  
Canal Wall Up ◽  
Space Volume

The contribution of the middle ear air spaces to sound transmission through the middle ear in canal wall-up and canal wall-down mastoidectomy was studied in human temporal bones by measurements of middle ear input impedance and sound pressure difference across the tympanic membrane for the frequency range 50 Hz to 5 kHz. These measurements indicate that, relative to canal wall-up procedures, canal wall-down mastoidectomy results in a 1 to 5 dB decrease in middle ear sound transmission below 1 kHz, a 0 to 10 dB increase between 1 and 3 kHz, and no change above 3 kHz. These results are consistent with those reported by Gyo et al. (Arch Otolaryngol Head Neck Surg 1986;112:1262-8), in which umbo displacement was used as a measure of sound transmission. A model analysis suggests that the reduction in sound transmission below 1 kHz can be explained by the smaller middle ear air space volume associated with the canal wall-down procedure. We conclude that as long as the middle ear air space is aerated and has a volume greater than 0.7 ml, canal wall-down mastoidectomy should generally cause less than 10 dB changes in middle ear sound transmission relative to the canal wall-up procedure. (Otolaryngol Head Neck Surg 1998;118:751-61.)

Hearing Status After Cartilage Augmented Type III Tympanoplasty: In Chronic Otitis Media Squamous Type

2021 ◽  
Vol 18 (2) ◽  
pp. 27-30
Author(s):  
Lok Ram Verma ◽  
Dhundi Raj Paudel
Keyword(s):  
Otitis Media ◽  
Chronic Otitis Media ◽  
Effective Area ◽  
Canal Wall ◽  
Hearing Improvement ◽  
Type Iii ◽  
Hearing Status ◽  
Fascia Graft ◽  
Canal Wall Down ◽  
Canal Wall Down Mastoidectomy

Introduction: Tympanoplasty is typically performed in conjunction with a canal wall down mastoidectomy in patient with Chronic Otitis Media Squamous. The results from experimental and clinical studies of the type III stapes columellar reconstruction have shown that interposing a disk of cartilage between the graft and the stapes head improves hearing in the lower frequencies by 5 to 10 dB. They hypothesize that the cartilage acts to increase the “effective” area of the graft that is coupled to the stapes, which leads to an increase in the middle ear gain of the reconstructed ear. Aims: To assess the hearing improvement after cartilage augmented Type III Tympanoplasty in chronic otitis media squamous disease. Methods: This study was conducted in 44 patients with Chronic Otitis Media squamous in the patients attending the department of Otorhinolaryngology in NGMC teaching hospital from November 2018 to March 2020. Canal Wall Down mastoidectomy with cartilage augmented type III Tympanoplasty and was done. Augmentation was done with thin 3-4 mm conchal cartilage interposed between stapes and Temporalis fascia graft. Results: There were 11(25%) male and 33(75%) female, with mean age of 29.48 years, ranging from minimum of 15 years to maximum 56 years. The preoperative mean A–B gap was 21.82 and postoperatively means AB gap was 12.20 dB with overall AB gap gain was 9.64 dB. Conclusion: Significant hearing improvement is seen in Canal Wall Down mastoidectomy Chronic Otitis Media squamous after cartilage augmented type III tympanoplasty.

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

2020 ◽  
Vol 26 (2) ◽  
pp. 86-94
Author(s):  
Mohammad Hanif ◽  
Md Zahedul Alam ◽  
Kamrul Hassan Tarafder ◽  
Md Rojibul Haque ◽  
Mohammad Shaharior Arafat ◽  
...  
Keyword(s):  
Neck Surgery ◽  
Canal Wall ◽  
Type Iii ◽  
Medical College ◽  
Hearing Status ◽  
Canal Wall Down ◽  
Canal Wall Down Mastoidectomy ◽  
A Prospective Study ◽  
Surgery Department ◽  
Medical University

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

scholarly journals Post operative hearing status in canal wall down mastoidectomy with type III tympanoaplasty

2020 ◽  
Vol 23 (2) ◽  
pp. 146-152
Author(s):  
Sheikh Mohammad Rafiqul Hossain ◽  
Ahmmad Taous ◽  
Md Mustafizur Rahman ◽  
Ahmed Raquib ◽  
Md Monwar Hossain
Keyword(s):  
Tympanic Membrane ◽  
Ossicular Chain ◽  
Canal Wall ◽  
Type Iii ◽  
Hearing Status ◽  
Number Of Patients ◽  
Canal Wall Down ◽  
Canal Wall Down Mastoidectomy ◽  
Type 3 ◽  
Canal Wall Reconstruction

Background: Canal wall down procedure may be with or without reconstruction such as tympanic membrane, ossicular chain or posterior canal wall reconstruction. To preserve and improvement of hearing, prevent discharge and recurrence, now a days canal wall down mastoidectomy with reconstruction such as type III tympanoplasty under magnification is a modern advancement in otology. Objectives: To find out hearing status before mastoidectomy and hearing status after canal wall down mastoidectomy with and without reconstruction. Methods: Prospectove study done on 3 tertiaty hospitals in Dhaka. Number of patients were 40 who underwent for modified radical mstoidectomy, 20 were with reconstruction and 20 without reconstruction (Type 3 Tympanoplasty) Results: hearing was deteriorated in most of the cases (60%) of MRM without tympanoplasty. Air Bone (AB) Gap Increased 3.65dB after CWD without reconstruction. Closer of AB gap (9.77 dB) occurred after CWD with reconstruction. Bangladesh J Otorhinolaryngol; October 2017; 23(2): 146-152

Sign in / Sign up

Export Citation Format

Share Document