Flow behaviour in normal and Meniere’s disease of endolymphatic fluid inside the inner ear

Paisal, Muhammad Sufyan Amir; Wahab, Muhamad Azmi; Taib, Ishkrizat; Isa, Norasikin Mat; Ramli, Yahaya; Seri, Suzairin Md; Darlis, Nofrizalidris; Osman, Kahar; Khudzari, Ahmad Zahran Md; Nordin, Normayati

doi:10.1088/1757-899x/243/1/012033

Cited by 2 publications

(3 citation statements)

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“…Apart from defects in the bony labyrinth, other inner ear pathologies have the potential to impact inner ear mechanics. Endolymphatic hydrops for instance, which can have various causes (39,40), is believed to have a huge impact on inner fluid mechanics (41)(42)(43). This argument is supported by VEMP studies in patients suffering from clinically diagnosed definite MD.…”

Section: Introductionmentioning

confidence: 91%

Cervical and Ocular Vestibular-Evoked Myogenic Potentials in Patients With Intracochlear Schwannomas

et al. 2020

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Objective: To evaluate ocular and cervical vestibular evoked myogenic potentials (oVEMPs and cVEMPs) in patients with solely intracochlear localization of an intralabyrinthine schwannoma (ILS).Study Design: Retrospective analysis of a series of cases.Setting: Monocentric study at a tertiary referral center.Patients: Patients with intracochlear schwannoma (ICS) and VEMP measurements.Outcome Measures: Signed asymmetry ratio (AR) of cVEMPs and oVEMPs to air conducted sound with AR cut-offs considered to be asymmetrical when exceeding ±30% for cVEMPs and ±40% for oVEMPs with respect to the side affected by the tumor (reduced amplitudes on the affected side indicated by negative values, enhanced amplitudes by positive values); VEMP amplitudes and latencies; tumor localization in the cochlear turn and scala.Results: Nineteen patients with a solely intracochlear tumor (ICS patients) [10 males, 9 females, mean age 57.1 (SD: 13.4) years] were included in the study. On the affected side, cVEMPs were absent or reduced in 47% of the patients, normal in 32%, and enhanced in 21%. Ocular VEMPs on the affected side were absent or reduced in 53% of the patients, normal in 32% and enhanced in 15%. Latencies for cVEMPs and oVEMPs were not significantly different between the affected and non-affected side. In all patients with enhanced VEMPs, the tumor was located in the scala tympani and scala vestibuli. Conclusions:As a new and unexpected finding, VEMP amplitudes can be enhanced in patients with intracochlear schwannoma, mimicking the third window syndrome.

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Section: Introductionmentioning

confidence: 91%

Cervical and Ocular Vestibular-Evoked Myogenic Potentials in Patients With Intracochlear Schwannomas

et al. 2020

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“…f) Schematic details of the inner ear where endolymphatic fluid is colored in black, perilymph in white, and temporal bone in grey. Reproduced with permission . Copyright 2017, Institute of Physics Publishing.…”

Section: Robotic Roles Of Intelligent Liquid In Nature or Artificiallmentioning

confidence: 99%

“…The semicircular duct has a crista with a cupula attached, and the ampulla contains functional endolymph (Figure f). When the head rotates toward one direction, the cupula and hair bundles will be bent due to the responsive inertial drag of inner endolymph, thus triggering potential variations and conveying information to the brain for subsequent control (Figure g) . Meanwhile, the three semicircular ducts are perpendicular with one another in three planes, the delicate arrangements of which enable effective detections of rotational acceleration or deceleration .…”

Section: Robotic Roles Of Intelligent Liquid In Nature or Artificiallmentioning

confidence: 99%

Intelligent Liquid Integrated Functional Entity: A Basic Way to Innovate Future Advanced Biomimetic Soft Robotics

Liu

Qin

Liu

2019

Advanced Intelligent Systems

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The liquid is an essential component of natural creatures with profound capacities in assisting homeostatic regulation of physiological functions. However, its participation in more diverse biological behaviors, such as intelligence, motion, energy, etc., is seriously neglected and is undisclosed thus far. Herein, it is considered whether liquid systems can offer pivotal hints in the development of intelligent machines. Starting from this core point, a basic conjecture is proposed that specifically equips a robotic system with liquid that brings about revolutionary design of intelligent systems and plays an elementary role in molding future advanced soft robots. Through a comparative analogy between artificially made machines and natural animals, the basic category of the so-termed Intelligent Liquid Integrated Functional Entity (I-LIFE) is drafted and thus enabled. Then, functions of such unconventional robotic liquid are expounded from five aspects, including motion, energy supply, material performance tuning, sensing, and intelligence, respectively. Typical application examples are also illustrated. Furthermore, a group of intelligent liquids are recommended as candidates for developing future robotic systems. The fundamental scientific and technological challenges lying behind these recommendations are outlined. Finally, prospects of I-LIFE are pointed out, which stimulates the increasing design of a future generation of innovative intelligent robotic systems.

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Flow behaviour in normal and Meniere’s disease of endolymphatic fluid inside the inner ear

Cited by 2 publications

References 12 publications

Cervical and Ocular Vestibular-Evoked Myogenic Potentials in Patients With Intracochlear Schwannomas

Cervical and Ocular Vestibular-Evoked Myogenic Potentials in Patients With Intracochlear Schwannomas

Intelligent Liquid Integrated Functional Entity: A Basic Way to Innovate Future Advanced Biomimetic Soft Robotics

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