Congestion of mastoid mucosa and influence on middle ear pressure – Effect of retroauricular injection of adrenaline

Jensen, Pernille Vita Fooken; Gaihede, Michael

doi:10.1016/j.heares.2016.02.008

Cited by 9 publications

(4 citation statements)

References 24 publications

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“…Tympanic injection, the local hormone administration method firstly used in Meniere's disease and sudden deafness, has also been used in the treatment of Bell's Palsy, and can effectively relieve the symptoms of facial nerve edema [ 25 ]. Meanwhile, retroauricular injection is a local steroid hormone administration method that was first used to treat sudden deafness; its clinical efficacy has been confirmed in many studies [ 26 , 27 ].…”

Section: Discussionmentioning

confidence: 99%

Methylprednisolone sodium succinate retroauricular injection combined with acupuncture in the treatment of Bell's Palsy

Chen

et al. 2023

Heliyon

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Section: Discussionmentioning

confidence: 99%

Methylprednisolone sodium succinate retroauricular injection combined with acupuncture in the treatment of Bell's Palsy

Chen

et al. 2023

Heliyon

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“…Localized congestion in the passageway between the middle ear and mastoid (the aditus), eliminates the damping effect for specific frequencies ("combination of multiple resonators"). In individuals with vulnerable resonance homeostasis, mucosal congestion of an isolated cell in the distal mastoid or temporal bone apex may lead to unexpected complaints ("resonator tree") ( Figure 6D) The body can exert control on TMRF via Helmholtz resonance related mechanisms: vascular filling of parts of the mastoid (29) and shape of ET (in otosclerosis: see further in the text).…”

Section: Helmholtz Resonancementioning

confidence: 99%

“…The body may make use of the air cushion effect in order to modulate TMRF in a controlled way: modulating middle ear air pressure relative to atmospheric pressure (29) increases the stiffness of the ordinary loose ( Figure 6G) pars flaccida and gradually enhances the air cushion, causing a gradual upward shift of TMRF (31, 32) ( Figure 6H).…”

Section: The Middle Ear Air Cushion Effectmentioning

confidence: 99%

Tympanic Resonance Hypothesis

Boedts

2020

Front. Neurol.

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Seemingly unrelated symptoms in the head and neck region are eliminated when a patch is applied on specific locations on the Tympanic Membrane. Clinically, two distinct patient populations can be distinguished; cervical and masticatory muscle tensions are involved, and mental moods of anxiety or need. Clinical observations lead to the hypothesis of a "Tympanic Resonance Regulating System." Its controller, the Trigeminocervical complex, integrates external auditory, somatosensory, and central impulses. It modulates auditory attention, and directs it toward unpredictable external or expected domestic and internal sounds: peripherally by shifting the resonance frequencies of the Tympanic Membrane; centrally by influencing the throughput of auditory information to the neural attention networks that toggle between scanning and focusing; and thus altering the perception of auditory information. The hypothesis leads to the assumption that the Trigeminocervical complex is composed of a dorsal component, and a ventral one which may overlap with the concept of "Trigeminovagal complex." "Tympanic Dissonance" results in a host of local and distant symptoms, most of which can be attributed to activation of the Trigeminocervical complex. Diagnostic and therapeutic measures for this "Tympanic Dissonance Syndrome" are suggested.

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“…In application, this requires that the physiology of MEPR be well understood from a mechanistic perspective. Currently, a number of conceptually distinct mechanisms for MEPR have been described, with stable MEEPGs being volume-regulated, temperature-regulated, pressure-regulated, flow-regulated or regulated by some combinations of these mechanisms (Adams, 1954; Bluestone, 2005; Csakanyi et al, 2014; Doyle, 2000; Fooken Jensen et al, 2016; Gaihede et al, 2010; Hergils et al, 1988; Padurariu et al, 2015). …”

Section: 0 Introductionmentioning

confidence: 99%

A formal description of middle ear pressure-regulation

Doyle

2017

Hearing Research

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Introduction Middle ear (ME) pressure-regulation (MEPR) is a homeostatic mechanism that maintains the ME-environment pressure-gradient (MEEPG) within a range optimized for “normal” hearing. Objective Describe MEPR using equations applicable to passive, inter-compartmental gas-exchange and determine if the predictions of that description include the increasing ME pressure observed under certain conditions and interpreted by some as evidencing gas-production by the ME mucosa. Methods MEPR was modeled as the combined effect of passive gas-exchanges between the ME and: perilymph via the round window membrane, the ambient environment via the tympanic membrane, and the local blood via the ME mucosa and of gas flow between the ME and nasopharynx during Eustachian tube openings. The first 3 of these exchanges are described at the species level using the Fick’s diffusion equation and the last as a bulk gas transfer governed by Poiseuille’s equation. The model structure is a time-iteration of the equation: PMEg(t=(i+1)Δt) = Σs(PMEs(t=iΔt)+(1/(βMEsVME)ΣP(ҚPs(PCs(t=(iΔt)-PMEs(t=(iΔt))). There, PMEg(t=iΔt) and PMEs(t=iΔt) are the ME total and species-pressures at the indexed times, PCs(t=iΔt) is the species-pressure for each exchange-compartment, βMEsVME is the product of the ME species-capacitance and volume, ҚP is the pathway species-conductance, and ΣS and ΣP are operators for summing the expression over all species or exchange pathways. Results When calibrated to known values, the model predicts the empirically measured ME species-pressures and the observed time-trajectories for total ME pressure and the MEEPG under a wide variety of physiologic, pathologic and non-physiologic conditions. Conclusions Passive inter-compartmental gas exchange is sole and sufficient to describe MEPR.

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Congestion of mastoid mucosa and influence on middle ear pressure – Effect of retroauricular injection of adrenaline

Cited by 9 publications

References 24 publications

Methylprednisolone sodium succinate retroauricular injection combined with acupuncture in the treatment of Bell's Palsy

Methylprednisolone sodium succinate retroauricular injection combined with acupuncture in the treatment of Bell's Palsy

Tympanic Resonance Hypothesis

A formal description of middle ear pressure-regulation

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