The Effect of Static Middle Ear Pressures on the Hearing Threshold

Erlandsson, B.; Håkanson, Håkan; Ivarsson, A; Nilsson, P

doi:10.3109/00016488009131733

Cited by 13 publications

(7 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…4B). At 2000 Hz, results of Erlandsson et al (1980) shows 2 to 4 dB improvement of hearing sensitivity, whereas the present study reveals a minimum change in DPOAE level. This small dissimilarity may be attributable to the inherent difference between behavioral and physiological assessment of the auditory function.…”

Section: Effects Of Negative Mepcontrasting

confidence: 80%

“…However, differential effects of negative MEP on the forward and reverse middle ear transfer functions in humans cannot be simply drawn from existing evidence. Please note that the hearing of subjects in the study by Erlandsson et al (1980) tended to be better for high frequencies under negative Fig. 4.…”

Section: Effects Of Negative Mepmentioning

confidence: 94%

“…Erlandsson et al (1980) designed a special procedure to have six subjects produce negative MEPs at specific target magnitudes and then tested hearing thresholds using Békésy audiometry. The hearing threshold shift versus frequency function from this study is similar to the DPOAE level change versus frequency function obtained in the present study, particularly for frequencies below 2000 Hz and above 4000 Hz (Fig.…”

Section: Effects Of Negative Mepmentioning

confidence: 99%

“…In follow-up systematic studies using modern audiometry, the effect of MEP on hearing thresholds was also simulated with ECP variations (Truswell et al 1979). Very few investigations have looked into the actual negative MEP effect in a small number of subjects (Erlandsson et al 1980). Negative MEP is the most commonly occurring dysfunction of the middle ear, while often mild and transient.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Ear Canal Pressure Variations Versus Negative Middle Ear Pressure: Comparison Using Distortion Product Otoacoustic Emission Measurement in Humans

Sun

2012

Ear &Amp; Hearing

View full text Add to dashboard Cite

Effects of negative MEP and ECP variations on DPOAEs in human ears are comparable, to a great extent, to findings from previous studies on hearing sensitivity in humans and tympanic membrane vibration at the umbo in human temporal bones. The present study demonstrates that positive ECP can be used to simulate negative MEP in research on the middle ear function in live humans. Results also suggest that long-lasting beliefs regarding the ECP effect on the middle ear conduction should be amended: (1) only positive ECP, not negative ECP, attenuates sound transmission more for low frequencies than for high frequencies, and (2) positive ECP has a greater effect than negative ECP only for low frequencies and not for high frequencies. Discussion of the present results together with those from previous studies sheds light on the middle ear dynamics under diverse pressure changes across the tympanic membrane and proposes that distorted configuration of the tympanic membrane and ossicular chain is the key factor in the effect of MEP or ECP on the middle ear sound transmission for low frequencies.

show abstract

Section: Effects Of Negative Mepcontrasting

confidence: 80%

Section: Effects Of Negative Mepmentioning

confidence: 94%

Section: Effects Of Negative Mepmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Ear Canal Pressure Variations Versus Negative Middle Ear Pressure: Comparison Using Distortion Product Otoacoustic Emission Measurement in Humans

Sun

2012

Ear &Amp; Hearing

View full text Add to dashboard Cite

show abstract

“…Loss of low-frequency acoustic sensitivity has been noted in hydropic guinea pigs undergoing various electrophysiological studies. The endocochlear potential, summating potential, action potential and cochlear microphonics are affected by artificial and nonphysiological manipulations of endolymphatic and perilymphatic pressures [1][2][3][4][5]. Transmission of increasing cerebrospinal fluid (CSF) pressure to the inner ear can induce hearing impairment.…”

Section: Introductionmentioning

confidence: 99%

The effect of increased inner ear pressure on tympanic membrane vibration

Jang

Park

Choi

et al. 2009

International Journal of Pediatric Otorhinolaryngology

View full text Add to dashboard Cite

Treatment With Sulfur Hexafluoride in Children With Serous Otitis Media: An Alternative to Tubulation

Andréasson¹,

Bylander²,

Ivarsson³

et al. 1983

Archives of Otolaryngology - Head and Neck Surgery

View full text Add to dashboard Cite

\s=b\In this pilot study, sulfur hexafluoride (SF6), a nontoxic inert gas infused into the ear during myringotomy and acting as a gas cushion behind an intact eardrum, was tested on five children with bilateral serous otitis media. The contralateral ear was treated with air as a control. A significant difference in air-bone gaps (frequencies, 0.5, 1.0, and 2.0 kHz) lasting at least eight weeks was found between the ears treated with SF6 and the air-treated ears. No side effects were noted. Tympanograms showed varying patterns. The l ong\x=req-\ term effects were also favorable for the SF6-treated ears. In selected cases, eg, ears with thin scars and retractions, this might be a valuable alternative to tubulation. Further studies are being carried out.

show abstract

The Effect of Static Middle Ear Pressures on the Hearing Threshold

Cited by 13 publications

References 8 publications

Ear Canal Pressure Variations Versus Negative Middle Ear Pressure: Comparison Using Distortion Product Otoacoustic Emission Measurement in Humans

Ear Canal Pressure Variations Versus Negative Middle Ear Pressure: Comparison Using Distortion Product Otoacoustic Emission Measurement in Humans

The effect of increased inner ear pressure on tympanic membrane vibration

Treatment With Sulfur Hexafluoride in Children With Serous Otitis Media: An Alternative to Tubulation

Contact Info

Product

Resources

About