External Auditory Canal Reconstruction and Mastoid Obliteration Using Modified Palva Flap in Canal Wall Down Mastoidectomy With Tympanoplasty

2019 ◽  
Vol 128 (6_suppl) ◽  
pp. 69S-75S
Author(s):  
Ji-Sun Kim ◽  
Il Gye Lim ◽  
Jeong-Hoon Oh ◽  
Byung Guk Kim ◽  
Ki-Hong Chang
Keyword(s):  
Temporal Bone ◽  
External Auditory Canal ◽  
Pure Tone ◽  
Pure Tone Audiometry ◽  
Canal Wall ◽  
Mastoid Obliteration ◽  
Before And After ◽  
The Status ◽  
Canal Wall Down ◽  
Canal Wall Down Mastoidectomy

Objective: To evaluate the effectiveness of a modified Palva flap used for external auditory canal reconstruction and mastoid obliteration in canal wall down mastoidectomy. Methods: We retrospectively analyzed patients who underwent canal wall down mastoidectomy with tympanoplasty using modified Palva flap. All patients underwent pure tone audiometry and temporal bone computed tomography (CT) before surgery, and the same tests were performed in the first year after surgery. The external auditory canal volumes were calculated by summing the areas of each section selected in temporal bone CT. For each patient, the ratio of external auditory canal volume was calculated from CT taken before and after surgery. Results: The mean of external auditory canal volume after canal wall down with a modified Palva flap was about 1.4 times larger than before surgery. The modified Palva flap is effective for the reconstruction of the external auditory canal. Both pure tone audiometry level and air-bone gap showed statistically significant improvement after surgery ( Ps = .001 and .002, respectively). Conclusions: The external auditory canal volume slightly increased, but the status of mastoid obliteration was well maintained 1 year after surgery. The modified Palva flap used in this study is an easy and effective method in external auditory canal reconstruction and mastoid obliteration.

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 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 Mastoid obliteration and external auditory canal reconstruction with silicone block in canal wall down mastoidectomy

2021 ◽  
Author(s):  
Mohammad Faramarzi ◽  
Reza Kaboodkhani ◽  
Ali Faramarzi ◽  
Sareh Roosta ◽  
Mohammadjavad Erfanizadeh ◽  
...  
Keyword(s):  
External Auditory Canal ◽  
Canal Wall ◽  
Mastoid Obliteration ◽  
Canal Wall Down ◽  
Canal Wall Down Mastoidectomy

Cochlear implantation after canal wall down mastoidectomy — Outcomes after partial mastoid obliteration

2019 ◽  
Vol 46 (4) ◽  
pp. 487-492 ◽  
Author(s):  
Matthias Balk ◽  
David Schwarz ◽  
Philipp Wolber ◽  
Andreas Anagiotos ◽  
Antoniu-Oreste Gostian
Keyword(s):  
Cochlear Implantation ◽  
Canal Wall ◽  
Mastoid Obliteration ◽  
Canal Wall Down ◽  
Canal Wall Down Mastoidectomy

scholarly journals Canal wall window tympanomastoidectomy – A review of 84 cases

1970 ◽  
Vol 16 (1) ◽  
pp. 3-8
Author(s):  
Delwar Hossain ◽  
Mosleh Uddin ◽  
Ahmmad Taous ◽  
Kazi Shameemus Salam ◽  
Rafiqul Islam
Keyword(s):  
Retrospective Study ◽  
Pure Tone ◽  
Canal Wall ◽  
Retraction Pocket ◽  
Female Ratio ◽  
Primary Surgery ◽  
Male Female Ratio ◽  
Canal Wall Down ◽  
Canal Wall Down Mastoidectomy ◽  
Materials Used

Canal wall window (CWW) tympanomastoidectomy is a modified form of attico-antrostomywhich can be a substituted for canal wall down procedure. A retrospective study of 84 casesof CWW tympanomastoidectomy were collected from department of otolaryngology and Headnecksurgery, BSMMU and ENT Foundation Hospital, Dhaka from June 2005 to July 2009.In this study majority of the patients were 16 to 48 years 57(67.86%). Male female ratio was3:1. Most of the patients were found cholesteatoma 27 (32.14%), granulation tissue 25(29.76%),retraction pocket 22(26.19%),Postoperative hearing gain (mean three frequency pure tone air bone gap) assessed 3 monthsafter primary surgery, most of the patients 34(40.48%) had gain 20dB+, 26 patients (30.95%)had gain 10dB+,18 patients (2143%) had gain 30dB+.Materials used in tympano-ossiculoplasty were chonchal cartilage, sculptured incus, PORPand TORP. Most of the patients we used incus reposition 36(42.86%), cartilage ossiculoplasty28(33.33%), PORP 12(14.29%) and TORP 8 (9.52%).Post operative followup of the patient was done in 1 month, 3 month and 6 month intervals andcondition of external auditory canal assessed. Dry ear were found 70 patients (83.33%), moistear were found 8 patients (9.52%) and 6 patients (7.14%) were found purulent dischargingears and later canal wall down mastoidectomy done .Key words: Canal wall window; Tympanomastoidectomy.DOI: 10.3329/bjo.v16i1.5774Bangladesh J Otorhinolaryngol 2010; 16(1): 3-8

scholarly journals The depth of the facial nerve in the mastoid bone

2018 ◽  
Vol 4 (3) ◽  
pp. 666
Author(s):  
B. Y. Praveen Kumar ◽  
K. T. Chandrashekhar ◽  
M. K. Veena Pani ◽  
Sunil K. C. ◽  
Anand Kumar S. ◽  
...  
Keyword(s):  
Facial Nerve ◽  
Temporal Bone ◽  
Significant Variation ◽  
Canal Wall ◽  
Stylomastoid Foramen ◽  
Cortical Mastoidectomy ◽  
Canal Wall Down ◽  
Canal Wall Down Mastoidectomy ◽  
The Mean ◽  
Temporal Bones

<p class="abstract"><strong>Background:</strong> The hallmark of the temporal bone is variation. Various important structures like the facial nerve run in the temporal bone at various depths which can be injured during mastoidectomy.</p><p class="abstract"><strong>Methods:</strong> Twenty wet cadaveric temporal bones were dissected. A cortical mastoidectomy was performed followed by a canal wall down mastoidectomy and the depth of the vertical segment of the facial nerve in the mastoid was determined.  </p><p class="abstract"><strong>Results:</strong> The mean depth of the second genu was 13.82 mm. The mean depth of the stylomastoid foramen was 12.75 mm and the mean distance from the annulus at 6’0 clock to the stylomastoid foramen was 10.22 mm.</p><p><strong>Conclusions:</strong> There is significant variation in the average depth of the facial nerve in the mastoid. </p>

scholarly journals Repair of Temporal Bone Encephalocele following Canal Wall Down Mastoidectomy

2014 ◽  
Vol 2014 ◽  
pp. 1-4 ◽  
Author(s):  
Sarantis Blioskas ◽  
Ioannis Magras ◽  
Stavros Polyzoidis ◽  
Konstantinos Kouskouras ◽  
Georgios Psillas ◽  
...  
Keyword(s):  
Temporal Bone ◽  
Chronic Otitis Media ◽  
Base Deficit ◽  
Layer By Layer ◽  
Canal Wall ◽  
Temporalis Fascia ◽  
Dural Graft ◽  
Canal Wall Down ◽  
Canal Wall Down Mastoidectomy

We report a rare case of a temporal bone encephalocele after a canal wall down mastoidectomy performed to treat chronic otitis media with cholesteatoma. The patient was treated successfully via an intracranial approach. An enhanced layer-by-layer repair of the encephalocele and skull base deficit was achieved from intradurally to extradurally, using temporalis fascia, nasal septum cartilage, and artificial dural graft. After a 22-month follow-up period the patient remains symptom free and no recurrence is noted.

Impact of Partial Mastoid Obliteration on Caloric Vestibular Function in Canal Wall Down Mastoidectomy

2010 ◽  
Vol 31 (9) ◽  
pp. 1399-1403 ◽  
Author(s):  
Dirk Beutner ◽  
Victor Helmstaedter ◽  
Robert Stumpf ◽  
Thomas Beleites ◽  
Thomas Zahnert ◽  
...  
Keyword(s):  
Vestibular Function ◽  
Canal Wall ◽  
Mastoid Obliteration ◽  
Canal Wall Down ◽  
Canal Wall Down Mastoidectomy
Sign in / Sign up

Export Citation Format

Share Document