scholarly journals Aural Myiasis, a Rare Cause of Earache

2015 ◽  
Vol 2015 ◽  
pp. 1-3 ◽  
Author(s):  
Ibrahim Al Jabr
Keyword(s):  
Computed Tomography ◽  
Ct Scan ◽  
Middle Ear ◽  
Larval Stage ◽  
Tympanic Membrane Perforation ◽  
Tropical Regions ◽  
Warm Weather ◽  
Membrane Perforation ◽  
Good Environment

Myiasis of the ear is an infestation of the ear by maggots (the larval stage of flies). In the literature, there are only few cases reported about aural myiasis. It is more common to occur in tropical regions, where humidity and warm weather provide a good environment for this infestation. In this paper, a 12-year-old boy is reported to have unilateral earache for 3-day duration. Examination of the painful ear showed a tympanic membrane perforation with larvae (maggots) in the middle ear. They were removed by using a forceps and gentle irrigation of ear to expel any remnant. Further management included assessment of hearing, computed tomography (CT) scan, and outpatient follow-up.

scholarly journals Recovery from tympanic membrane perforation: Effects on membrane thickness, auditory thresholds, and middle ear transmission

2019 ◽  
Vol 384 ◽  
pp. 107813 ◽  
Author(s):  
Lingling Cai ◽  
Glenna Stomackin ◽  
Nicholas M. Perez ◽  
Xiaohui Lin ◽  
Timothy T. Jung ◽  
...  
Keyword(s):  
Tympanic Membrane ◽  
Middle Ear ◽  
Tympanic Membrane Perforation ◽  
Membrane Thickness ◽  
Auditory Thresholds ◽  
Membrane Perforation

Middle Ear Packing: Comparison Between Merogel and Gelfoam

2008 ◽  
Vol 139 (2_suppl) ◽  
pp. P102-P102
Author(s):  
Michael Julian Lipan ◽  
Alava Ibraham ◽  
Simon I Angeli ◽  
Thomas R Van De Water
Keyword(s):  
Tympanic Membrane ◽  
Middle Ear ◽  
Inflammatory Reaction ◽  
Tympanic Membrane Perforation ◽  
Mucosal Inflammation ◽  
Controlled Study ◽  
Control Group ◽  
Otologic Surgery ◽  
Membrane Perforation ◽  
Brainstem Response

Problem Gelfoam has been used for decades in otologic surgery to support grafts and prostheses despite causing fibrosis and adhesions. More biocompatible packing materials could avoid these complications. This study compares Gelfoam with an injectable esterified hyaluronic acid, Merogel, as middle ear packing material after mucosal trauma. Methods A randomized, blinded, controlled study was performed in 17 juvenile guinea pigs. Middle ear surgery with mucosal trauma was performed and middle ears were packed with Merogel or Gelfoam; unpacked contralateral ears were used as controls. Auditory brainstem response (ABR) thresholds were measured in 4 frequencies pre-operatively, and repeated at 1, 2, and 6 weeks postoperatively. Gross analysis measured inflammatory reaction in each group. Statistical analysis was performed using ANOVA followed by post-hoc analysis for ABR thresholds and packing remaining at 6 weeks. Non-prametric tests were used for presence of mucosal inflammation, effusion and tympanic membrane perforation. Results ABR threshold changes from baseline were minor and comparable between the Merogel group and the control group. Threshold change was higher in the Gelfoam group. This difference was seen in each frequency tested at each time interval (all p<0.05). Gross analysis showed 1) Mucosal inflammation higher in the Gelfoam group (p<0.05), 2) Effusions were higher in the Gelfoam group but the difference was not significant (p=0.07), 3) Tympanic membrane perforation was equally rare between groups (p>0.05), 4) Unabsorbed packing was higher in the Gelfoam group (p<0.05); little Merogel was detectable at time of sacrifice. Conclusion Middle ear healing after surgery occurred similarly in the control group and the Merogel group. In contrast, the Gelfoam group demonstrated greater perturbation of hearing and a greater inflammatory reaction. Significance These results support Merogel as an alternative to Gelfoam in middle ear packing after otologic surgery. Support Research grant from Medtronic ENT.

Common drugs used in ENT

2009 ◽  
pp. 347-350
Author(s):  
Rogan Corbridge ◽  
Nicholas Steventon
Keyword(s):  
Inner Ear ◽  
Tympanic Membrane ◽  
Middle Ear ◽  
Otitis Externa ◽  
Round Window ◽  
Acid Reflux ◽  
Tympanic Membrane Perforation ◽  
Active Infection ◽  
Middle Ear Mucosa ◽  
Membrane Perforation

Drugs used in the ear 348 Drugs used in the nose 349 Drugs used in the treatment of acid reflux 350 This group of drugs is widely used for the treatment of otitis externa. Otitis externa 2 drops tds for 10 days Presence of grommet or tympanic membrane perforation due to aminoglycoside ototoxicity in the inner ear. Risk thought to be low in the presence of active infection where the middle-ear mucosa is swollen and the antibiotic is unlikely to reach the inner ear via the round window...

scholarly journals Correlation of Site and Size of Tympanic Membrane Perforation and Middle Ear Air Space Volume with Magnitude of Hearing Loss

2019 ◽  
Vol 02 (01) ◽  
pp. 10-15
Author(s):  
Ramandeep Singh Virk ◽  
Krishan Kudawla ◽  
Sandeep Bansal ◽  
Ramya Rathod ◽  
Samarendra Behera
Keyword(s):  
Hearing Loss ◽  
Tympanic Membrane ◽  
Middle Ear ◽  
Tympanic Membrane Perforation ◽  
Tympanic Membrane Perforations ◽  
Air Space ◽  
Membrane Perforation ◽  
Volume Group ◽  
Space Volume ◽  
Lower Frequencies

Abstract Introduction The effects of tympanic membrane perforations on middle ear sound transmission are not well characterized, largely because ears with perforations typically have additional pathological changes. It has been established that the larger the perforation, the greater is the hearing loss (HL). Aim This study aimed to correlate the location and size of tympanic membrane perforation and middle ear air space volume with the magnitude of HL in patients with tubotympanic or inactive mucosal type of chronic otitis media (COM). Materials and Methods A prospective clinical study of patients with tympanic membrane perforations due to COM and without any other ear disease and who attended the Otolaryngology services at our institute between July 2010 and December 2011 was conducted. A total of 300 ears were evaluated by performing otoendoscopy, followed by photo documentation and audiological investigations (pure-tone audiometry and tympanometry). Tympanic membrane perforations were categorized based on their size and location, and the mean air-bone (AB) gap between the various types of perforations was compared and statistically analyzed with significance level of p < 0.05. Results Out of 300 ears, maximum number of ears (n = 124, 41.3%) had large-sized perforations (> 30 mm2) that had a maximum mean AB gap of 26.43 dB, and minimum number of ears (n = 60, 20%) had small-sized perforations (0–9 mm2) that had minimum mean AB gap of 9.12 dB. The remaining were medium-sized perforations that had mean AB gap of 16.13 dB. Depending on the location, maximum were central perforations (n = 198, 66%) and minimum were anterosuperior (AS) perforations (n = 9, 3%). Based on the middle ear volume on tympanometry, maximum ears were of low-volume group (n = 246, 92%) that had larger mean AB gap of 19.96 dB HL when compared with the high-volume group (n = 24, 8%) with 11.80 dB HL. AB gap was maximum at lower frequencies and decreased with increase in frequencies except at 4,000 Hz, that is, 56.9 dB HL at 250 Hz, 42.6 at 500 Hz, 41.5 at 1,000 Hz, 32.4 at 2,000 Hz, and 49.5 at 4,000 Hz. Conclusion HL increases as the area of tympanic membrane perforation increases. There is an inverse relationship between HL and middle ear air space volume. Comparing the small-sized perforations at different sites with the middle ear volume being low, it was found that posterosuperior (PS) perforations had 4 to 7 dB greater HL than AS and anteroinferior (AI). However, the relationship was statistically insignificant. The phase cancellation effect of round window causing greater HL in posteroinferior (PI) perforations does not exist in small- and medium-sized perforations. HL is greater at lower frequencies and less at higher frequencies.

Ototoxicity after use of neomycin eardrops is unrelated to A1555G point mutation in mitochondrial DNA

2004 ◽  
Vol 118 (7) ◽  
pp. 546-550 ◽  
Author(s):  
Tatsuya Yamasoba ◽  
Katsunori Tsukuda
Keyword(s):  
Mitochondrial Dna ◽  
Tympanic Membrane ◽  
Point Mutation ◽  
Middle Ear ◽  
Dna Analysis ◽  
Tympanic Membrane Perforation ◽  
Mitochondrial Dna Analysis ◽  
Membrane Perforation ◽  
Inner Ear Damage ◽  
Ear Drops

Ear drops containing neomycin only rarely cause ototoxicity. The authors report on three patients with a tympanic membrane perforation who developed severe ototoxicity after use of eardrops containing 0.35 per cent neomycin. Mitochondrial DNA analysis revealed that there was no A1555G point mutation in these patients. This finding indicates that application of low concentration neomycin to the middle ear can cause severe inner ear damage even in humans who are not hyper-susceptible to aminoglycosides.

Closure of tympanic membrane perforation after the removal of Goode-type tympanostomy tubes: the use of silastic sheeting

1992 ◽  
Vol 106 (11) ◽  
pp. 960-962 ◽  
Author(s):  
R. G. Courteney-Harris ◽  
G. R. Ford ◽  
T. M. J. Ganiwalla ◽  
K. S. Mangat
Keyword(s):  
Tympanic Membrane ◽  
Randomized Study ◽  
Tympanic Membrane Perforation ◽  
The Other ◽  
Prospective Randomized Study ◽  
T Tube ◽  
Tympanostomy Tubes ◽  
Membrane Perforation

AbstractThe reported incidence of persistent tympanic membrane perforation after the extrusion or removal of Goodetype tympanostomy tubes varies from 3 per cent to 47.5 per cent.A prospective randomized study of 152 Goode-type T-tube removals is presented. In one group of 79 ears, the edge of the defect was just freshened, but in the other 73 ears, the edge was freshened and a small piece of 0.13 mm silastic sheeting placed over the defect. Follow-up was performed at six weeks and three, six and nine months and shows that the use of silastic sheeting increases the rate of closure of the perforation and also significantly decreases the number of persistent perforations at nine months.

Canal wall down mastoidectomy: causes of failure, pitfalls and their management

1995 ◽  
Vol 109 (7) ◽  
pp. 583-589 ◽  
Author(s):  
Sanjaya Bhatia ◽  
Sandeep Karmarkar ◽  
Giuseppe DeDonato ◽  
Cemil Mutlu ◽  
Abdelkader Taibah ◽  
...  
Keyword(s):  
Middle Ear ◽  
Revision Surgery ◽  
Tympanic Membrane Perforation ◽  
Canal Wall ◽  
Revision Procedure ◽  
Primary Procedure ◽  
Membrane Perforation ◽  
Canal Wall Down ◽  
Canal Wall Down Mastoidectomy ◽  
Causes Of Failure

AbstractManaging patients with failed canal wall down mastoidectomy, requires a meticulous approach to control the disease and restore hearing. The present article reviews the causes of failure of the primary procedure and pitfalls encountered in 105 patients referred to our centre for revision canal wall down mastoidectomy. At post-revision surgery there were no cases with residual or recurrent cholesteatoma. The failures in our revision procedure were due to tympanic membrane perforation which occurred in five percent (n = 4) and intermittent otorrhoea in two percent (n = 2). A dry cavity with adequate middle ear space allowed for optimum audiological function even in revision canal wall down procedures.

Comparative study of 3 exophthalmometers and computed tomographic biometry

2018 ◽  
Vol 28 (2) ◽  
pp. 144-149 ◽  
Author(s):  
Juliette Delmas ◽  
Jean-Marie Loustau ◽  
Sylvain Martin ◽  
Loïc Bourmault ◽  
Jean-Paul Adenis ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Ct Scan ◽  
Axial Length ◽  
Intraclass Correlation ◽  
Great Accuracy ◽  
Graves Disease ◽  
Interobserver Reproducibility ◽  
Computed Tomographic ◽  
Cerebral Computed Tomography

Purpose: Accurate and reproducible exophthalmometry is mandatory to diagnose and follow-up orbital patients, especially in Graves disease. However, many variations are described among the different commercially available exophthalmometers. Methods: Sixty patients, who underwent a cerebral computed tomography (CT) scan, were included. External prebicanthal segments (EPBCS) for right and left eyes (RE and LE), interorbital distance, and globe axial length were recorded by a first observer (O1), more experienced than a second (O2). Intraobserver and interobserver reproducibility were evaluated, using intraclass correlation coefficient (ICC) and Bland and Altman plots. Results: Concordance between each EPBCS measurement for each eye and CT scan biometry was moderate for the Luedde ruler for the 2 observers. For the Hertel exophthalmometer, concordance was moderate for O1 in the 2 eyes and moderate in RE but good in LE for O2. For the Mourits exophthalmometer, this concordance was very good in RE and good in LE for O1, and good whatever the eye for O2. Intraobserver (ICC varying from 0.75 to 0.95 for the 2 observers) and interobserver (ICC from 0.69 to 0.94) reproducibility were high, especially for the Mourits exophthalmometer. Bland and Altman plots showed underestimations when using the Luedde ruler, overestimations when using the Hertel exophthalmometer, and overestimation of small values and underestimation of high values when using the Mourits exophthalmometer when compared to CT scan biometry. Conclusions: We demonstrated great accuracy to CT scan biometry with 1-prism Mourits exophthalmometer, low accuracy with the Luedde instrument, and intermediate accuracy with the Hertel exophthalmometer, with fair intraobserver and interobserver reproducibility.

Sign in / Sign up

Export Citation Format

Share Document