Bone Anchored Hearing Aids (BAHAs) are currently well-utilized for treatment of hearing-impaired patients with unilateral or bilateral mixed and conductive hearing loss as well as patients with single sided deafness. The objective of this study is to evaluate outcome of BAHA Attract system in terms of surgical, functional,audiological and cosmetic results This is a prospective observational study of 15 consecutive patients of single sided deafness (SSD) who qualified for and underwent BAHA Attract surgery at a tertiary care hospital over a duration of two years. Parameters analysed were: (1) Surgery and wound healing, (2) Post-operative functional results (Bern Benefit for Single sided deafness questionnaire (BBSSQ)), (3) audiological results (free field speech in noise audiometry in two situations: with signal from implanted side and from contralateral side), (4) Cosmetic results (introduction of novel Three Points Scoring System (TPSS). Clinico-radiological planning of surgical site for implant is also described.Mean surgical time was 39 minutes and healing was uneventful in 73 % of patients. All patients reported improvement in all ten hearing situations with maximum improvement for sound localization. Significant improvement of speech in noise was seen especially when signal was presented from implanted side. All patient had full score in TPSS for cosmesis except one patient. This was the same patient in whom clinico-radiologically planned site was discarded intraoperatively due to overpneumatised temporal bone.BAHA Attract system is safeand effective solution for single sided deafness with acceptable cosmesis.
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http://dx.doi.org/10.1007/s12070-024-04854-x | DOI Listing |
Materials (Basel)
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College of Mining and Safety Engineering, Shandong University of Science and Technology, Qingdao 266590, China.
Aiming at the problems of collapse, deformation, and displacement in the concrete paving of roadway floors, this paper adopts the way of adding alkali-free accelerators to the concrete on both sides, through mechanical analysis, single factor experiment, orthogonal experiment, and polynomial fitting method, and determines the relevant parameters of concrete and accelerators in the sliding form paving of roadway floor from two aspects of paving material and size. The results show that the FSA-AF alkali-free liquid accelerator is more suitable for roadway floor paving than the J85 powder accelerator. When the FSA-AF accelerator dosage reaches 8%, the decreasing trend of initial setting time curve tends to be flat.
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Wallace H. Coulter Department of Biomedical Engineering, Emory University and Georgia Institute of Technology, 1760 Haygood Drive, Health Sciences Research Bldg E170, Atlanta, GA 30322, USA.
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Correctly identifying influential nodes in a complex network and implementing targeted protection measures can significantly enhance the overall security of the network. Currently, indicators such as degree centrality, closeness centrality, betweenness centrality, H-index, and K-shell are commonly used to measure node influence. Although these indicators can identify critical nodes to some extent, they often consider node attributes from a narrow perspective and have certain limitations.
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