The U.S. Food and Drug Administration has permitted marketing of a device that uses a small balloon to treat persistent Eustachian tube dysfunction (ETD), a condition in which pressure, pain or...
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Τετάρτη 21 Σεπτεμβρίου 2016
FDA permits marketing of balloon device to treat persistent Eustachian tube dysfunction
The U.S. Food and Drug Administration has permitted marketing of a device that uses a small balloon to treat persistent Eustachian tube dysfunction (ETD), a condition in which pressure, pain or...
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FDA permits marketing of balloon device to treat persistent Eustachian tube dysfunction
The U.S. Food and Drug Administration has permitted marketing of a device that uses a small balloon to treat persistent Eustachian tube dysfunction (ETD), a condition in which pressure, pain or...
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A local representation of the head-related transfer function
Spatial descriptions of the head-related transfer function (HRTF) using spherical harmonics, which is commonly used for the purpose, consider all directions simultaneously. However, in perceptual studies, it is necessary to model HRTFs with different angular resolutions at different directions. To this end, an alternative spatial representation of the HRTF, based on local analysis functions, is introduced. The proposal is shown to have the potential to describe the local features of the HRTF. This is verified by comparing the reconstruction error achieved by the proposal to that of the spherical harmonic decomposition when reconstructing the HRTF inside a spherical cap.
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Long-term effects of lateral wedge orthotics on hip and ankle joint space widths
Publication date: Available online 21 September 2016
Source:Gait & Posture
Author(s): Mehmet E. Tezcan, Berna Goker, Roy Lidtke, Joel A. Block
BackgroundLateral wedge insoles have been used for the treatment of medial knee osteoarthritis (OA) and have been shown to reduce loading of the medial compartment of the knee. However, as the entire lower extremity acts as a single kinetic chain, altering the biomechanics of the knee may also have significant effects at the ankles or hips. We aimed to evaluate the effects of lateral wedge orthotics on ankle and hip joints, compared to neutral orthotics, by assessing the changes in joint space width (JSW) during 36 months of continuous use.MethodsWe prospectively enrolled 109 subjects with symptomatic osteoarthritis of the medial knee according to the American College of Rheumatology criteria. The trial was double blind and patients were randomized to either wedged or neutral orthotic shoe inserts. Hip and ankle JSWs were quantified using plain radiographies at baseline and at 36-months follow-up.Findings45 patients completed the 36 month study. 31 of those who completed the study were using the lateral wedge versus 14 were using neutral orthotics. 2 patients in the wedge group had missing radiographs and were not included in the JSW analyses. There were no significant differences between the wedge and the neutral orthotics groups in the magnitude of JSW change at either the hip or the ankles at 36 month.InterpretationWe found no significant adverse effects of the lateral wedges on ankles or hips. (ClinicalTrials.gov NCT00076453).
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Source:Gait & Posture
Author(s): Mehmet E. Tezcan, Berna Goker, Roy Lidtke, Joel A. Block
BackgroundLateral wedge insoles have been used for the treatment of medial knee osteoarthritis (OA) and have been shown to reduce loading of the medial compartment of the knee. However, as the entire lower extremity acts as a single kinetic chain, altering the biomechanics of the knee may also have significant effects at the ankles or hips. We aimed to evaluate the effects of lateral wedge orthotics on ankle and hip joints, compared to neutral orthotics, by assessing the changes in joint space width (JSW) during 36 months of continuous use.MethodsWe prospectively enrolled 109 subjects with symptomatic osteoarthritis of the medial knee according to the American College of Rheumatology criteria. The trial was double blind and patients were randomized to either wedged or neutral orthotic shoe inserts. Hip and ankle JSWs were quantified using plain radiographies at baseline and at 36-months follow-up.Findings45 patients completed the 36 month study. 31 of those who completed the study were using the lateral wedge versus 14 were using neutral orthotics. 2 patients in the wedge group had missing radiographs and were not included in the JSW analyses. There were no significant differences between the wedge and the neutral orthotics groups in the magnitude of JSW change at either the hip or the ankles at 36 month.InterpretationWe found no significant adverse effects of the lateral wedges on ankles or hips. (ClinicalTrials.gov NCT00076453).
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Long-term effects of lateral wedge orthotics on hip and ankle joint space widths
Publication date: Available online 21 September 2016
Source:Gait & Posture
Author(s): Mehmet E. Tezcan, Berna Goker, Roy Lidtke, Joel A. Block
BackgroundLateral wedge insoles have been used for the treatment of medial knee osteoarthritis (OA) and have been shown to reduce loading of the medial compartment of the knee. However, as the entire lower extremity acts as a single kinetic chain, altering the biomechanics of the knee may also have significant effects at the ankles or hips. We aimed to evaluate the effects of lateral wedge orthotics on ankle and hip joints, compared to neutral orthotics, by assessing the changes in joint space width (JSW) during 36 months of continuous use.MethodsWe prospectively enrolled 109 subjects with symptomatic osteoarthritis of the medial knee according to the American College of Rheumatology criteria. The trial was double blind and patients were randomized to either wedged or neutral orthotic shoe inserts. Hip and ankle JSWs were quantified using plain radiographies at baseline and at 36-months follow-up.Findings45 patients completed the 36 month study. 31 of those who completed the study were using the lateral wedge versus 14 were using neutral orthotics. 2 patients in the wedge group had missing radiographs and were not included in the JSW analyses. There were no significant differences between the wedge and the neutral orthotics groups in the magnitude of JSW change at either the hip or the ankles at 36 month.InterpretationWe found no significant adverse effects of the lateral wedges on ankles or hips. (ClinicalTrials.gov NCT00076453).
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Source:Gait & Posture
Author(s): Mehmet E. Tezcan, Berna Goker, Roy Lidtke, Joel A. Block
BackgroundLateral wedge insoles have been used for the treatment of medial knee osteoarthritis (OA) and have been shown to reduce loading of the medial compartment of the knee. However, as the entire lower extremity acts as a single kinetic chain, altering the biomechanics of the knee may also have significant effects at the ankles or hips. We aimed to evaluate the effects of lateral wedge orthotics on ankle and hip joints, compared to neutral orthotics, by assessing the changes in joint space width (JSW) during 36 months of continuous use.MethodsWe prospectively enrolled 109 subjects with symptomatic osteoarthritis of the medial knee according to the American College of Rheumatology criteria. The trial was double blind and patients were randomized to either wedged or neutral orthotic shoe inserts. Hip and ankle JSWs were quantified using plain radiographies at baseline and at 36-months follow-up.Findings45 patients completed the 36 month study. 31 of those who completed the study were using the lateral wedge versus 14 were using neutral orthotics. 2 patients in the wedge group had missing radiographs and were not included in the JSW analyses. There were no significant differences between the wedge and the neutral orthotics groups in the magnitude of JSW change at either the hip or the ankles at 36 month.InterpretationWe found no significant adverse effects of the lateral wedges on ankles or hips. (ClinicalTrials.gov NCT00076453).
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Long-term effects of lateral wedge orthotics on hip and ankle joint space widths
Publication date: Available online 21 September 2016
Source:Gait & Posture
Author(s): Mehmet E. Tezcan, Berna Goker, Roy Lidtke, Joel A. Block
BackgroundLateral wedge insoles have been used for the treatment of medial knee osteoarthritis (OA) and have been shown to reduce loading of the medial compartment of the knee. However, as the entire lower extremity acts as a single kinetic chain, altering the biomechanics of the knee may also have significant effects at the ankles or hips. We aimed to evaluate the effects of lateral wedge orthotics on ankle and hip joints, compared to neutral orthotics, by assessing the changes in joint space width (JSW) during 36 months of continuous use.MethodsWe prospectively enrolled 109 subjects with symptomatic osteoarthritis of the medial knee according to the American College of Rheumatology criteria. The trial was double blind and patients were randomized to either wedged or neutral orthotic shoe inserts. Hip and ankle JSWs were quantified using plain radiographies at baseline and at 36-months follow-up.Findings45 patients completed the 36 month study. 31 of those who completed the study were using the lateral wedge versus 14 were using neutral orthotics. 2 patients in the wedge group had missing radiographs and were not included in the JSW analyses. There were no significant differences between the wedge and the neutral orthotics groups in the magnitude of JSW change at either the hip or the ankles at 36 month.InterpretationWe found no significant adverse effects of the lateral wedges on ankles or hips. (ClinicalTrials.gov NCT00076453).
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Source:Gait & Posture
Author(s): Mehmet E. Tezcan, Berna Goker, Roy Lidtke, Joel A. Block
BackgroundLateral wedge insoles have been used for the treatment of medial knee osteoarthritis (OA) and have been shown to reduce loading of the medial compartment of the knee. However, as the entire lower extremity acts as a single kinetic chain, altering the biomechanics of the knee may also have significant effects at the ankles or hips. We aimed to evaluate the effects of lateral wedge orthotics on ankle and hip joints, compared to neutral orthotics, by assessing the changes in joint space width (JSW) during 36 months of continuous use.MethodsWe prospectively enrolled 109 subjects with symptomatic osteoarthritis of the medial knee according to the American College of Rheumatology criteria. The trial was double blind and patients were randomized to either wedged or neutral orthotic shoe inserts. Hip and ankle JSWs were quantified using plain radiographies at baseline and at 36-months follow-up.Findings45 patients completed the 36 month study. 31 of those who completed the study were using the lateral wedge versus 14 were using neutral orthotics. 2 patients in the wedge group had missing radiographs and were not included in the JSW analyses. There were no significant differences between the wedge and the neutral orthotics groups in the magnitude of JSW change at either the hip or the ankles at 36 month.InterpretationWe found no significant adverse effects of the lateral wedges on ankles or hips. (ClinicalTrials.gov NCT00076453).
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Five-Year Hearing Outcomes in Bilateral Simultaneously Cochlear-Implanted Adult Patients
Objective: To report the speech performance and sound localization in adult patients 5 years after bilateral simultaneous cochlear implantation and to evaluate the change in speech scores between 1 and 5 years. Design: In this prospective multicenter study, 26 patients were evaluated 5 years after implantation using long straight electrode arrays (MED-EL Combi 40+, standard electrode array, 31 mm). Speech perception was measured using disyllabic words in quiet and noise, with the speech coming from the front and a cocktail party background noise coming from 5 loudspeakers. Speech localization measurements were performed in noise under the same test conditions. These results were compared to those obtained at 1 year reported in a previous study. Results: Five years after implantation, an improvement in speech performance scores compared to 1 year after implantation was found for the poorer ear both in quiet and in noise (+12.1 ± 2.6%, p Conclusion: In adult patients simultaneously and bilaterally implanted, the poorest speech scores improved between 1 and 5 years after implantation. These findings are an additional element to recommend bilateral implantation in adult patients. The use of both cochlear implants and speech training sessions for patients with poor performance should continue in the period after 1 year following implantation, since the speech scores will improve over time.
Audiol Neurotol 2016;21:261-267
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Audiol Neurotol 2016;21:261-267
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Methods of Fat Tissue Processing for Human Vocal Cord Injection: A Systematic Review
Source:Journal of Voice
Author(s): Giselle M. Truzzi, Henrique F. Pauna, Patricia Bette, Reinaldo J. Gusmão, Agrício N. Crespo, Graziela O. Semenzati
ObjectivesWe analyzed different methods used to process autologous fat tissues for vocal fold injection (VFI). VFI is a safe procedure that preserves the folds' original elasticity and vibration properties and rarely triggers foreign-body reactions, but is often a temporary treatment due to fat reabsorption. To avoid it, selecting a technique that provides as many viable implantable adipocytes as possible is mandatory.Study DesignThis is a systematic review.MethodsData were collected from PubMed, Embase, Ovid, and Cochrane Library. Authors systematically reviewed databases for papers on autologous fat tissue processing methods involving human injections in vocal folds and vocalization outcomes that evolved the acoustic analysis of the voice before and after the surgical procedure, independently of the follow-up time.ResultsNine out of the 517 articles met selection criteria for analysis. No standardized technique was found.ConclusionThere is no standardized technique for processing fat tissue for vocal fold injection. Further research is needed to point out the best available technique.
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Matching Speaking to Singing Voices and the Influence of Content
Source:Journal of Voice
Author(s): Zehra F. Peynircioğlu, Brian E. Rabinovitz, Juliana Repice
Objectives and HypothesisWe tested whether speaking voices of unfamiliar people could be matched to their singing voices, and, if so, whether the content of the utterances would influence this matching performance. Our hypothesis was that enough acoustic features would remain the same between speaking and singing voices such that their identification as belonging to the same or different individuals would be possible even upon a single hearing. We also hypothesized that the contents of the utterances would influence this identification process such that voices uttering words would be easier to match than those uttering vowels.Study DesignWe used a within-participant design with blocked stimuli that were counterbalanced using a Latin square design. In one block, mode (speaking vs singing) was manipulated while content was held constant; in another block, content (word vs syllable) was manipulated while mode was held constant, and in the control block, both mode and content were held constant.MethodParticipants indicated whether the voices in any given pair of utterances belonged to the same person or to different people.ResultsCross-mode matching was above chance level, although mode-congruent performance was better. Further, only speaking voices were easier to match when uttering words.ConclusionsWe can identify speaking and singing voices as the same or different even on just a single hearing. However, content interacts with mode such that words benefit matching of speaking voices but not of singing voices. Results are discussed within an attentional framework.
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