The Experts below are selected from a list of 174 Experts worldwide ranked by ideXlab platform
Ronald A. Hoffman - One of the best experts on this subject based on the ideXlab platform.
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Surgical management of complications after hearing aid fitting.
The Laryngoscope, 2004Co-Authors: Darius Kohan, Alexander Sorin, Stephen Marra, Marc D. Gottlieb, Ronald A. HoffmanAbstract:Standard procedures for hearing aid fitting performed in accordance with established guidelines are well tolerated, safe, and effective. In this article, we present unusual complications after hearing aid fitting that required surgical management. Four otologists at a major university center with a combined 65 years of experience performed a retrospective analysis of their surgical practice. Six patients were identified that had encountered severe complications from improper Earmold fitting that required surgical intervention. One patient had a perforation of the tympanic membrane with Earmold material found to have migrated into the middle ear cleft. The tympanic membrane healed spontaneously, resulting in persistent otalgia and a maximum air-bone gap. The Earmold cast was successfully removed by means of a tympanomastoidectomy. Two patients with presbycusis and normal ear canals developed eardrum perforations and conductive hearing deficits. In both patients, Earmold material was found partially occupying the middle ear cleft and removed by way of a transcanal approach. Three patients with prior canal wall down mastoidectomy defects and narrow external ear canals required microtoscopy under general anesthesia or canaloplasty for removal of impacted material. Proper fitting of hearing aids performed by well-trained medical professionals results in a very low incidence of significant complications. Perforation of the tympanic membrane with impaction of Earmold material in the middle ear or mastoid bowl may occur and can be successfully managed by standard otologic surgical techniques.
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Surgical management of complications after hearing aid fitting.
The Laryngoscope, 2004Co-Authors: Darius Kohan, Alexander Sorin, Stephen Marra, Marc D. Gottlieb, Ronald A. HoffmanAbstract:Objectives: Standard procedures for hearing aid fitting performed in accordance with established guidelines are well tolerated, safe, and effective. In this article, we present unusual complications after hearing aid fitting that required surgical management. Methods: Four otologists at a major university center with a combined 65 years of experience performed a retrospective analysis of their surgical practice. Six patients were identified that had encountered severe complications from improper Earmold fitting that required surgical intervention. Results: One patient had a perforation of the tympanic membrane with Earmold material found to have migrated into the middle ear cleft. The tympanic membrane healed spontaneously, resulting in persistent otalgia and a maximum air-bone gap. The Earmold cast was successfully removed by means of a tympanomastoidectomy. Two patients with presbycusis and normal ear canals developed eardrum perforations and conductive hearing deficits. In both patients, Earmold material was found partially occupying the middle ear cleft and removed by way of a transcanal approach. Three patients with prior canal wall down mastoidectomy defects and narrow external ear canals required microtoscopy under general anesthesia or canaloplasty for removal of impacted material. Conclusion: Proper fitting of hearing aids performed by well-trained medical professionals results in a very low incidence of significant complications. Perforation of the tympanic membrane with impaction of Earmold material in the middle ear or mastoid bowl may occur and can be successfully managed by standard otologic surgical techniques.
Darius Kohan - One of the best experts on this subject based on the ideXlab platform.
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Surgical management of complications after hearing aid fitting.
The Laryngoscope, 2004Co-Authors: Darius Kohan, Alexander Sorin, Stephen Marra, Marc D. Gottlieb, Ronald A. HoffmanAbstract:Standard procedures for hearing aid fitting performed in accordance with established guidelines are well tolerated, safe, and effective. In this article, we present unusual complications after hearing aid fitting that required surgical management. Four otologists at a major university center with a combined 65 years of experience performed a retrospective analysis of their surgical practice. Six patients were identified that had encountered severe complications from improper Earmold fitting that required surgical intervention. One patient had a perforation of the tympanic membrane with Earmold material found to have migrated into the middle ear cleft. The tympanic membrane healed spontaneously, resulting in persistent otalgia and a maximum air-bone gap. The Earmold cast was successfully removed by means of a tympanomastoidectomy. Two patients with presbycusis and normal ear canals developed eardrum perforations and conductive hearing deficits. In both patients, Earmold material was found partially occupying the middle ear cleft and removed by way of a transcanal approach. Three patients with prior canal wall down mastoidectomy defects and narrow external ear canals required microtoscopy under general anesthesia or canaloplasty for removal of impacted material. Proper fitting of hearing aids performed by well-trained medical professionals results in a very low incidence of significant complications. Perforation of the tympanic membrane with impaction of Earmold material in the middle ear or mastoid bowl may occur and can be successfully managed by standard otologic surgical techniques.
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Surgical management of complications after hearing aid fitting.
The Laryngoscope, 2004Co-Authors: Darius Kohan, Alexander Sorin, Stephen Marra, Marc D. Gottlieb, Ronald A. HoffmanAbstract:Objectives: Standard procedures for hearing aid fitting performed in accordance with established guidelines are well tolerated, safe, and effective. In this article, we present unusual complications after hearing aid fitting that required surgical management. Methods: Four otologists at a major university center with a combined 65 years of experience performed a retrospective analysis of their surgical practice. Six patients were identified that had encountered severe complications from improper Earmold fitting that required surgical intervention. Results: One patient had a perforation of the tympanic membrane with Earmold material found to have migrated into the middle ear cleft. The tympanic membrane healed spontaneously, resulting in persistent otalgia and a maximum air-bone gap. The Earmold cast was successfully removed by means of a tympanomastoidectomy. Two patients with presbycusis and normal ear canals developed eardrum perforations and conductive hearing deficits. In both patients, Earmold material was found partially occupying the middle ear cleft and removed by way of a transcanal approach. Three patients with prior canal wall down mastoidectomy defects and narrow external ear canals required microtoscopy under general anesthesia or canaloplasty for removal of impacted material. Conclusion: Proper fitting of hearing aids performed by well-trained medical professionals results in a very low incidence of significant complications. Perforation of the tympanic membrane with impaction of Earmold material in the middle ear or mastoid bowl may occur and can be successfully managed by standard otologic surgical techniques.
Kevin J. Munro - One of the best experts on this subject based on the ideXlab platform.
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Comparison of real-ear to coupler difference values in the right and left ear of adults using three Earmold configurations.
Ear and hearing, 2005Co-Authors: Kevin J. Munro, Louise M. ButtfieldAbstract:OBJECTIVE: The purpose of the study was to compare real-ear to coupler difference (RECD) values in the right and left ear of adults using three Earmold configurations. DESIGN: The RECD was obtained from both ears of 18 normal hearing adults by subtracting the HA2 2-cc coupler response from the real-ear response using an ER-3A insert earphone and a swept pure tone on the Audioscan RM500 probe-tube microphone system. The measurements were made with a personal Earmold, foam eartip, and oto-admittance tip. RESULTS: The mean difference between the right and left RECD was close to 0 dB for all Earmold configurations and was not statistically significant on a repeated-measures analysis of variance (p > 0.05). In 90% of participants, the difference between ears was generally less than 3 dB at 0.5 to 4 kHz. CONCLUSIONS: Cooperative participants with non-occluding wax and normal middle ear function (on tympanometry) show small differences in RECD between the right and left ear, irrespective of the Earmold configuration. The study has yet to be extended to the clinical setting where subject cooperation and Earmold fit may differ from the present study. In the meantime, the findings from the present study indicate that where an RECD can be obtained from only one ear of a participant, it is probably best to use this to derive real-ear SPL of both ears instead of relying on average age appropriate corrections.
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Customized acoustic transform functions and their accuracy at predicting real-ear hearing aid performance
Ear and hearing, 2000Co-Authors: Kevin J. Munro, N. HattonAbstract:OBJECTIVE: The purpose of the study was to evaluate the validity of predicting the real-ear aided response by adding customized acoustic transform functions to the performance of a hearing aid in a 2-cc coupler. DESIGN: The real-ear hearing aid response, the real-ear-to-coupler difference (RECD/HA2), and field to behind-the-ear microphone transfer functions were measured in both ears of 24 normally hearing subjects using probe-tube microphone equipment. The RECD/HA2 transform function was obtained using both insert earphones and with the hearing aid/ pressure comparison method. An RECD/HA2 transfer function was also obtained with a customized Earmold, ER-3A foam tip, and an oto-admittance tip. RESULTS: Validity estimates were calculated as the difference between the derived and measured real-ear response. The derived response was generally within 5 dB of the measured real-ear response when it incorporated an RECD/HA2 transform function obtained with a customized Earmold for the specific ear in question. Discrepancies increased when the RECD/HA2 transfer function was obtained from the same subject but the opposite ear. There were significant differences between the RECD/HA2 transform function obtained with customized and temporary Earmolds. As a result, the derived response incorporating these transforms differed significantly from the measured real-ear response obtained with the customized Earmold. The insert earphone and the hearing aid RECD/HA2 transfer function were equally valid. CONCLUSIONS: The derived response may be used as a substitute for in situ hearing aid response procedures when it incorporates acoustic transform functions obtained with a customized Earmold from the specific ear in question.
Stephen Marra - One of the best experts on this subject based on the ideXlab platform.
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Surgical management of complications after hearing aid fitting.
The Laryngoscope, 2004Co-Authors: Darius Kohan, Alexander Sorin, Stephen Marra, Marc D. Gottlieb, Ronald A. HoffmanAbstract:Standard procedures for hearing aid fitting performed in accordance with established guidelines are well tolerated, safe, and effective. In this article, we present unusual complications after hearing aid fitting that required surgical management. Four otologists at a major university center with a combined 65 years of experience performed a retrospective analysis of their surgical practice. Six patients were identified that had encountered severe complications from improper Earmold fitting that required surgical intervention. One patient had a perforation of the tympanic membrane with Earmold material found to have migrated into the middle ear cleft. The tympanic membrane healed spontaneously, resulting in persistent otalgia and a maximum air-bone gap. The Earmold cast was successfully removed by means of a tympanomastoidectomy. Two patients with presbycusis and normal ear canals developed eardrum perforations and conductive hearing deficits. In both patients, Earmold material was found partially occupying the middle ear cleft and removed by way of a transcanal approach. Three patients with prior canal wall down mastoidectomy defects and narrow external ear canals required microtoscopy under general anesthesia or canaloplasty for removal of impacted material. Proper fitting of hearing aids performed by well-trained medical professionals results in a very low incidence of significant complications. Perforation of the tympanic membrane with impaction of Earmold material in the middle ear or mastoid bowl may occur and can be successfully managed by standard otologic surgical techniques.
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Surgical management of complications after hearing aid fitting.
The Laryngoscope, 2004Co-Authors: Darius Kohan, Alexander Sorin, Stephen Marra, Marc D. Gottlieb, Ronald A. HoffmanAbstract:Objectives: Standard procedures for hearing aid fitting performed in accordance with established guidelines are well tolerated, safe, and effective. In this article, we present unusual complications after hearing aid fitting that required surgical management. Methods: Four otologists at a major university center with a combined 65 years of experience performed a retrospective analysis of their surgical practice. Six patients were identified that had encountered severe complications from improper Earmold fitting that required surgical intervention. Results: One patient had a perforation of the tympanic membrane with Earmold material found to have migrated into the middle ear cleft. The tympanic membrane healed spontaneously, resulting in persistent otalgia and a maximum air-bone gap. The Earmold cast was successfully removed by means of a tympanomastoidectomy. Two patients with presbycusis and normal ear canals developed eardrum perforations and conductive hearing deficits. In both patients, Earmold material was found partially occupying the middle ear cleft and removed by way of a transcanal approach. Three patients with prior canal wall down mastoidectomy defects and narrow external ear canals required microtoscopy under general anesthesia or canaloplasty for removal of impacted material. Conclusion: Proper fitting of hearing aids performed by well-trained medical professionals results in a very low incidence of significant complications. Perforation of the tympanic membrane with impaction of Earmold material in the middle ear or mastoid bowl may occur and can be successfully managed by standard otologic surgical techniques.
Marc D. Gottlieb - One of the best experts on this subject based on the ideXlab platform.
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Surgical management of complications after hearing aid fitting.
The Laryngoscope, 2004Co-Authors: Darius Kohan, Alexander Sorin, Stephen Marra, Marc D. Gottlieb, Ronald A. HoffmanAbstract:Standard procedures for hearing aid fitting performed in accordance with established guidelines are well tolerated, safe, and effective. In this article, we present unusual complications after hearing aid fitting that required surgical management. Four otologists at a major university center with a combined 65 years of experience performed a retrospective analysis of their surgical practice. Six patients were identified that had encountered severe complications from improper Earmold fitting that required surgical intervention. One patient had a perforation of the tympanic membrane with Earmold material found to have migrated into the middle ear cleft. The tympanic membrane healed spontaneously, resulting in persistent otalgia and a maximum air-bone gap. The Earmold cast was successfully removed by means of a tympanomastoidectomy. Two patients with presbycusis and normal ear canals developed eardrum perforations and conductive hearing deficits. In both patients, Earmold material was found partially occupying the middle ear cleft and removed by way of a transcanal approach. Three patients with prior canal wall down mastoidectomy defects and narrow external ear canals required microtoscopy under general anesthesia or canaloplasty for removal of impacted material. Proper fitting of hearing aids performed by well-trained medical professionals results in a very low incidence of significant complications. Perforation of the tympanic membrane with impaction of Earmold material in the middle ear or mastoid bowl may occur and can be successfully managed by standard otologic surgical techniques.
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Surgical management of complications after hearing aid fitting.
The Laryngoscope, 2004Co-Authors: Darius Kohan, Alexander Sorin, Stephen Marra, Marc D. Gottlieb, Ronald A. HoffmanAbstract:Objectives: Standard procedures for hearing aid fitting performed in accordance with established guidelines are well tolerated, safe, and effective. In this article, we present unusual complications after hearing aid fitting that required surgical management. Methods: Four otologists at a major university center with a combined 65 years of experience performed a retrospective analysis of their surgical practice. Six patients were identified that had encountered severe complications from improper Earmold fitting that required surgical intervention. Results: One patient had a perforation of the tympanic membrane with Earmold material found to have migrated into the middle ear cleft. The tympanic membrane healed spontaneously, resulting in persistent otalgia and a maximum air-bone gap. The Earmold cast was successfully removed by means of a tympanomastoidectomy. Two patients with presbycusis and normal ear canals developed eardrum perforations and conductive hearing deficits. In both patients, Earmold material was found partially occupying the middle ear cleft and removed by way of a transcanal approach. Three patients with prior canal wall down mastoidectomy defects and narrow external ear canals required microtoscopy under general anesthesia or canaloplasty for removal of impacted material. Conclusion: Proper fitting of hearing aids performed by well-trained medical professionals results in a very low incidence of significant complications. Perforation of the tympanic membrane with impaction of Earmold material in the middle ear or mastoid bowl may occur and can be successfully managed by standard otologic surgical techniques.
