5 results on '"Mojallal, Hamidreza"'
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2. Consensus Statement on Bone Conduction Devices and Active Middle Ear Implants in Conductive and Mixed Hearing Loss
- Author
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Maier, Hannes, Lenarz, Thomas, Agha-Mir-Salim, Parwis, Agterberg, Martijn J. H., Anagiotos, Andreas, Arndt, Susan, Ball, Geoffrey, Bance, Manohar, Barbara, Maurizio, Baumann, Uwe, Baumgartner, Wolfgang, Bernardeschi, Daniele, Beutner, Dirk, Bosman, Arjan, Briggs, Robert, Busch, Susan, Caversaccio, Marco, Dahm, Markus, Dalhoff, Ernst, Deveze, Arnaud, Ebrahimi-Madiseh, Azadeh, Fraysse, Bernard, Frenzel, Henning, Gavilan, Javier, Ghoncheh, Mohammad, Hakansson, Bo E. V, Hodgetts, William, Hol, Myrthe, Hol-land, Julian, Holmberg, Marcus, Huber, Alexander M., Jenkins, Herman, Katiri, Roulla, Kheirkhah, Kiana, Koitschev, Assen, Kompis, Martin, Lanting, Cris, Lassaletta, Luis, Lerut, Bob, Leuwer, Rudolf, Linder, Thomas, Loewenheim, Hubert, Lustig, Lawrence, Mandavia, Rishi, Manrique, Manuel, Martins, Jorge Humberto, Mertens, Griet, Mlynski, Robert, Mojallal, Hamidreza, Monini, Simonetta, Monksfield, Peter, Mueller, Alexander, Mylanus, Emmanuel, Nakajima, Hideko, Neudert, Marcus, Offeciers, Erwin, Pfiffner, Flurin, Pietsch, Markus, Plontke, Stefan K., Prenzler, Nils, Profant, Milan, Rahne, Torsten, Rajan, Gunesh, Ratuszniak, Anna, Raufer, Stefan, Ray, Jaydip, Reinfeldt, Sabine, Roosli, Christof, Rosenbom, Tove, Salcher, Rolf, Schoenermark, Matthias, Schwab, Burkard, Skarzynski, Henryk, Skarkynski, Piotr H., Snapp, Hillary, Sprinzl, Georg, Spearman, Michael, Stenfelt, Stefan, Stieger, Christof, Tringali, Stephane, Truy, Eric, Tysome, James, Van de Heyning, Paul, Verhaert, Nicolas, Wesarg, Thomas, Westerkull, Patrik, Wollenberg, Barbara, Zahnert, Thomas, Zarowski, Andrzej, Snik, Ad, Maier, Hannes, Lenarz, Thomas, Agha-Mir-Salim, Parwis, Agterberg, Martijn J. H., Anagiotos, Andreas, Arndt, Susan, Ball, Geoffrey, Bance, Manohar, Barbara, Maurizio, Baumann, Uwe, Baumgartner, Wolfgang, Bernardeschi, Daniele, Beutner, Dirk, Bosman, Arjan, Briggs, Robert, Busch, Susan, Caversaccio, Marco, Dahm, Markus, Dalhoff, Ernst, Deveze, Arnaud, Ebrahimi-Madiseh, Azadeh, Fraysse, Bernard, Frenzel, Henning, Gavilan, Javier, Ghoncheh, Mohammad, Hakansson, Bo E. V, Hodgetts, William, Hol, Myrthe, Hol-land, Julian, Holmberg, Marcus, Huber, Alexander M., Jenkins, Herman, Katiri, Roulla, Kheirkhah, Kiana, Koitschev, Assen, Kompis, Martin, Lanting, Cris, Lassaletta, Luis, Lerut, Bob, Leuwer, Rudolf, Linder, Thomas, Loewenheim, Hubert, Lustig, Lawrence, Mandavia, Rishi, Manrique, Manuel, Martins, Jorge Humberto, Mertens, Griet, Mlynski, Robert, Mojallal, Hamidreza, Monini, Simonetta, Monksfield, Peter, Mueller, Alexander, Mylanus, Emmanuel, Nakajima, Hideko, Neudert, Marcus, Offeciers, Erwin, Pfiffner, Flurin, Pietsch, Markus, Plontke, Stefan K., Prenzler, Nils, Profant, Milan, Rahne, Torsten, Rajan, Gunesh, Ratuszniak, Anna, Raufer, Stefan, Ray, Jaydip, Reinfeldt, Sabine, Roosli, Christof, Rosenbom, Tove, Salcher, Rolf, Schoenermark, Matthias, Schwab, Burkard, Skarzynski, Henryk, Skarkynski, Piotr H., Snapp, Hillary, Sprinzl, Georg, Spearman, Michael, Stenfelt, Stefan, Stieger, Christof, Tringali, Stephane, Truy, Eric, Tysome, James, Van de Heyning, Paul, Verhaert, Nicolas, Wesarg, Thomas, Westerkull, Patrik, Wollenberg, Barbara, Zahnert, Thomas, Zarowski, Andrzej, and Snik, Ad
- Abstract
Nowadays, several options are available to treat patients with conductive or mixed hearing loss. Whenever surgical intervention is not possible or contra-indicated, and amplification by a conventional hearing device (e.g., behind-the-ear device) is not feasible, then implantable hearing devices are an indispensable next option. Implantable bone-conduction devices and middle-ear implants have advantages but also limitations concerning complexity/invasiveness of the surgery, medical complications, and effectiveness. To counsel the patient, the clinician should have a good overview of the options with regard to safety and reliability as well as unequivocal technical performance data. The present consensus document is the outcome of an extensive iterative process including ENT specialists, audiologists, health-policy scientists, and representatives/technicians of the main companies in this field. This document should provide a first framework for procedures and technical characterization to enhance effective communication between these stakeholders, improving health care., Funding Agencies|Cochlear Ltd; MED-EL Medical Electronics and Oticon Medical
- Published
- 2022
- Full Text
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3. Comparison between incus short process and long process coupling of the vibrant soundbridge in human temporal bones
- Author
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Graf, Lukas, primary, Lochner, Jonas, additional, Mojallal, Hamidreza, additional, Arnold, Andreas, additional, Honegger, Flurin, additional, and Stieger, Christof, additional
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- 2022
- Full Text
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4. Comparison between incus short process and long process coupling of the vibrant soundbridge in human temporal bones.
- Author
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Graf, Lukas, Lochner, Jonas, Mojallal, Hamidreza, Arnold, Andreas, Honegger, Flurin, and Stieger, Christof
- Subjects
PHYSICAL sciences ,STATISTICS ,HEARING aids ,TRANSDUCERS ,QUALITY assurance ,RESEARCH funding ,ELECTRIC stimulation ,SOUND ,DATA analysis ,ACOUSTIC stimulation ,DATA analysis software ,TEMPORAL bone ,EAR ossicles - Abstract
The Vibrant Soundbridge (VSB) is one of the most widely used implantable hearing devices. It consists of a vibrating floating mass transducer (FMT) that is connected to a middle ear structure. The standard coupling devices for sensorineural hearing loss are short process (SP) or long process (LP) couplers. This study directly compared the electro-mechanical performance of the SP- and LP-coupled FMT of the VSB in the same temporal bone specimen (n = 10). We measured velocity magnitudes and total harmonic distortions (THD) of the stapes (ST) and the round window (RW) using laser Doppler Vibrometry (LDV). Comparison shows a maximally 10 dB higher magnitude for the LP coupler at ST and RW for frequencies below 600 Hz, whereas the SP coupler shows a maximally 20 dB higher magnitude at the ST and RW for frequencies above 600 Hz. THD show similar behaviour with less distortion at 500 Hz for the LP coupler and less distortions for the SP coupler in higher frequencies. Our experiments showed that the SP coupling may be mechanically favourable, in terms of magnitude and distortion, for the transmission of FMT vibrations at higher frequencies. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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5. Cortical auditory evoked potentials as an objective measurement of hearing responses in users of non-implantable bone conduction device.
- Author
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Valim, Caroline and Mojallal, Hamidreza
- Subjects
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AUDITORY evoked response , *BONE conduction , *ARTIFICIAL implants , *HEARING levels , *CONDUCTIVE hearing loss , *PATIENT compliance - Abstract
Purpose: The aim of this acute prospective experiment was to asses the use of Cortical Auditory Evoked Potentials (CAEPs) with speech stimuli as an objective measure to estimate hearing responses of a group of adults with artificial conductive hearing loss adapted with a nonimplantable bone conduction device. Methods: Ten normal hearing adults participated in this study. Single subject repeated measures design with each subject serving as its own control. Participants' CAEPs elicited by two sets of speech stimuli were recorded and compared according to three hearing conditions: unaided normal-hearing (NH), unaided with artificial conductive hearing loss (aCHL), and aided with an adhesive bone conduction device (aBCD). In each condition, the stimuli were first presented at a fixed intensity level and the hearing thresholds for pure tones as well as speech sounds were measured. Participants' responses obtained with objective measurements were later compared with their psychoacoustic performance in sound-field. Results: Preliminary results indicated distinctive electrophysiological responses between conditions. Overall, responses obtained in the normal hearing condition and those acquired during the aBCD showed higher CAEP amplitudes (N1-P2) than in the aCHL condition. Results also indicated differences in responses according to stimuli properties. A comprehensive description of the present findings will be presented at the conference. Conclusion: CAEPs can be considered as an objective assessment tool not only to estimate hearing performance with non-implantable bone conduction hearing devices but also with all other hearing devices, especially in young children and patients with limited cooperation ability in subjective audiometry. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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