Total and component distortion product otoacoustic emission analysis in persons with induced negative middle ear pressure

2013 ◽  
Author(s):  
Suzanne Thompson ◽  
Glenis R. Long ◽  
Simon Henin
Keyword(s):  
Middle Ear ◽  
Otoacoustic Emission ◽  
Distortion Product Otoacoustic Emission ◽  
Emission Analysis ◽  
Distortion Product ◽  
Middle Ear Pressure

Effect of middle ear effusion on distortion product otoacoustic emission

2004 ◽  
Vol 68 (4) ◽  
pp. 437-440 ◽  
Author(s):  
Abdullah Tas ◽  
Recep Yagiz ◽  
Cem Uzun ◽  
Mustafa K Adali ◽  
Muhsin Koten ◽  
...  
Keyword(s):  
Middle Ear ◽  
Otoacoustic Emission ◽  
Distortion Product Otoacoustic Emission ◽  
Middle Ear Effusion ◽  
Distortion Product ◽  
Ear Effusion

scholarly journals Dynamic characteristics of the middle ear after stapes surgery: a distortion product otoacoustic emission study

2017 ◽  
Vol 33 (1) ◽  
pp. 1
Author(s):  
MohammadW El-Anwar ◽  
HaniA Riad ◽  
HeshamAbd El-Rahman ◽  
SalwaM Abdel Latif ◽  
AhmedAM Fawzy
Keyword(s):  
Middle Ear ◽  
Dynamic Characteristics ◽  
Otoacoustic Emission ◽  
Stapes Surgery ◽  
Distortion Product Otoacoustic Emission ◽  
Distortion Product ◽  
Emission Study

scholarly journals Alteration of distortion product otoacoustic emission input/output functions in subjects with a previous history of middle ear dysfunction

2012 ◽  
Vol 18 (4) ◽  
pp. MT27-MT31 ◽  
Author(s):  
Ualace De P. Campos ◽  
Seisse G. Sanches ◽  
Stavros Hatzopoulos ◽  
Renata M. M. Carvallo ◽  
Krzysztof Kochanek ◽  
...  
Keyword(s):  
Middle Ear ◽  
Previous History ◽  
Otoacoustic Emission ◽  
Distortion Product Otoacoustic Emission ◽  
Input Output ◽  
Distortion Product ◽  
History Of

Pengaruh sisplatin dosis tinggi terhadap penurunan fungsi sel rambut luar koklea

2013 ◽  
Vol 40 (2) ◽  
Author(s):  
Asti Kristianti ◽  
Teti Madiadipoera ◽  
Bogi Soeseno
Keyword(s):  
Hair Cells ◽  
Malignant Neoplasm ◽  
Otoacoustic Emission ◽  
Outer Hair Cells ◽  
High Dose ◽  
Distortion Product Otoacoustic Emission ◽  
Inclusion Criteria ◽  
Cochlear Hair Cells ◽  
Distortion Product ◽  
Bilateral Sensorineural Hearing Loss

Background: Chemotherapy is worldwide used nowadays, and its toxicity still remain a problemespecially toxicity to the ear (ototoxicity). Cisplatin (cis-diamminedichloroplatinum) is one of themost commonly used chemotherapy and highly potent in treating epithelial malignancies. Ototoxicitycaused by cisplatin is irreversible, progressive, bilateral, sensorineural hearing loss especially on highfrequency (4-8 KHz) accompanied by tinnitus. Purpose: To observe the cochlear outer hair cells damagein malignancies patients treated with cisplatin. Methods: This study is an observational analytic studywith prospective design to determine the influence of high dose cisplatin on cochlear outer hair cellsfunction. The research was carried out at the ENT-HNS Department, Hasan Sadikin General HospitalBandung, from November 2007 until June 2008. Audiometry, tympanometry, and distortion productotoacoustic emission (DPOAE) examinations were conducted before chemotherapy and DPOAE, andtimpanometry was again measured three days after first and second cycles of cisplatin administration. McNemar test was performed to calculate the effects of high-dose cisplatin to the cochlear outer haircells function. To compare pre and post-cisplatin on alteration of cochlear hair cells function, Wilcoxontest was used. Results: In this study 60 ears from 30 subjects that meet the inclusion criteria, consistedof 25 man (83.3%) and 5 women (16.7%). The prevalence of damaged cochlear outer hair cells were63% at first cycle and 70% at second cycle of cisplatin administration. The decline of cochlear outerhair cells function was significant (p<0.001). Conclusion: High-dose cisplatin decreases cochlear outerhair cells function in patients with malignant neoplasm. Abstrak : Latar belakang: Kemoterapi sekarang rutin digunakan secara klinis di seluruh dunia. Sejalan denganhal tersebut toksisitas kemoterapi, khususnya terhadap telinga saat ini menjadi perhatian. Sisplatin(cis-diamminedichloroplatinum) adalah salah satu obat kemoterapi yang paling banyak digunakandan paling manjur untuk terapi keganasan epitelial. Efek ototoksik sisplatin yaitu terjadi gangguandengar sensorineural yang irreversible, progresif, bilateral pada frekuensi tinggi (4-8 kHz), dan disertaidengan tinitus. Tujuan: Untuk menilai penurunan fungsi sel rambut luar koklea pada penderita tumorganas sesudah pemberian sisplatin dosis tinggi dengan menggunakan DPOAE. Metode: Studi analitikobservasional dengan rancangan prospektif di Bagian IK. THT-KL RS. Hasan Sadikin Bandung mulaibulan November 2007 sampai dengan Juni 2008. Pada penelitian ini dilakukan pemeriksaan audiometrinada murni, timpanometri, dan distortion product otoacoustic emission (DPOAE) prakemoterapi, kemudianDPOAE dan timpanometri diulang tiga hari sesudah siklus pertama dan kedua kemoterapi sisplatin. Datayang diperoleh diuji dengan uji McNemar dan uji Wilcoxon. Hasil: Dari penelitian didapat 60 telingadari 30 subjek penelitian yang memenuhi kriteria inklusi yang terdiri dari 25 laki-laki (83,3%) dan 5perempuan (16,7%). Insidens penurunan fungsi sel rambut luar koklea sebesar 63% (38 kasus) sesudahsiklus pertama dan 70% (42 kasus) sesudah siklus kedua. Hubungan penurunan fungsi sel rambut luarkoklea memberikan nilai yang sangat bermakna sejak pemberian siklus pertama (p<0,001). Kesimpulan:Pemberian sisplatin dosis tinggi pada penderita tumor ganas menyebabkan penurunan fungsi sel rambutluar koklea.Kata kunci: kemoterapi, sisplatin dosis tinggi, sel rambut luar koklea.

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