Evaluation of hearing loss parameters in workers and its relationship with baseline blood glucose levels

Marco, Silvia Lladosa; Torre, M. Victoria Ramírez-Iñiguez de La; Terradillos-García, M.J.; López-González, Ángel Arturo

doi:10.1016/j.endoen.2014.04.006

Cited by 3 publications

(3 citation statements)

References 16 publications

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“…With regard to systemic diseases, Vicente et al (13) found a significant relationship between blood glucose levels of workers and high frequency hearing loss. Ren et al (11) found statistical difference in hearing loss at 4 KHz and 8 KHz frequencies in middle-aged smoking patients with type 2 diabetes mellitus.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Hearing Loss in Pilots

Atalay

Babakurban

Aydın

2016

Turk Arch Otorhinolaryngol

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Objective: High-intensity noise sources with an increase in air traffic and sudden changes in atmospheric pressure can cause hearing loss in pilots. The main goal of this research is to examine hearing loss due to age, the total flight hours and aircraft types and to evaluate the effects of personal conditions that can influence the hearing level. Methods:We examined the data of 234 Turkish pilots aged between 25 and 54 years who were examined due to the aviation Law for annual control from January 2005 to January 2014 at Başkent University Medical Faculty, Ankara Hospital. The audiometric results of the pilots were used. While 1, 2, 3, 4, 6, and 8 KHz were used for the airway threshold, 1, 2, and 4 KHz were used for the bone conduction threshold.Results: According to the data of the 234 pilots, there was a significant correlation between high-frequency hearing loss and the total flight hours and pilots' ages. The average hearing loss was higher, particularly in the left ear, in pilots using helicopters than in those using other aircraft types. There was no statistically significant correlation between hearing loss and diabetes, hypercholesterolemia, high blood pressure, anemia, obesity, and smoking.Conclusion: A significant cor relation was observed between high frequency hearing loss and the total flight hours, pilots' age, and aircraft types in our study. Keywords

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Section: Discussionmentioning

confidence: 99%

Evaluation of Hearing Loss in Pilots

Atalay

Babakurban

Aydın

2016

Turk Arch Otorhinolaryngol

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“…Poredeći težinu SHnl za niske, srednje i visoke frekvencije uočena je statistička značajnost za niske i srednje frekvencije u težini SHnl, dok za visoke frekvencije ne postoji statistički značajna razlika između ispitanika obolelih od DM i kontrolne grupe već postoji težnja ka statističkoj značajnosti. naši rezultati su u saglasnosti sa dosad sprovedenim studijama (14)(15)(16). kod zdravih ljudi tokom starenja dolazi do opadanja sluha najpre na visokim frekvencijama.…”

Section: Diskusijaunclassified

Assessment of hearing loss severity in patients with type 2 diabetes mellitus

Simovic¹,

Živanović²,

Djurovic³

et al. 2016

Medicinski casopis

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STRUčni članak SAŽETAKCilj. Cilj stidije bio je da se utvrdi uticaj dijabetesa melitusa tip 2 na ispoljavanje i težinu senzorineuralnog oštećenja sluha kod obolelih u poređenju s kontrolnom grupom, jednakom po polu i uzrastu.Metode. Opservaciona prospektivna studija slučajeva i kontrola sprovedene su tokom 2013. godine na 132 ispitanika, uzrasta 21-84 godine, koji su zbog gubitka sluha pregledani na ORL odeljenju specijalističko-konsultativne službe Doma zdravlja Kragujevac. Kod ispitanika su primenjeni: detaljna anamneza, kompletan otorinolaringološki pregled, uključujući i otoskopiju, timpanometriju i tonalnu liminalnu audiometriju. Svi ispitanici podeljeni su u dve grupe. Prvu grupu činilo je 67 ispitanika sa dijagnostikovanim dijabetesom melitusom tip 2, dok je u drugoj grupi, adekvatnoj po starosnoj i polnoj zastupljenosti, bilo 65 ispitanika, i ona je predstavljala kontrolnu grupu. Primenom tonalne liminalne audiometrije utvrđeni su postojanje i stepen oštećenja sluha. Srednja vrednost dobijenih rezultata, na frekvencijama 500, 1.000, 2.000 i 4.000 Hz, veća od 25 dB smatrana je oštećenjem sluha. Podaci su statistički obrađeni primenom deskriptivnog metoda, t-testa i χ 2 -testa standardnim statističkim paketom (SPSS za Windows, verzija 19.0).Rezultati. Kod svih ispitanika obolelih od dijabetesa melitusa tip 2 postoji senzorineuralno oštećenje sluha. Uočeno je da kod obolelih od dijabetesa melitusa tip 2 postoji statistički značajno povišena učestalost i težina senzorineuralnog ostećenja sluha (p < 0,05) u odnosu na pripadnike kontrolne grupe.Zaključak. Dobijeni rezultati ukazuju na to da oboleli od dijabetesa melitusa tip 2 često imaju znatno oštećenje sluha koje je veoma jednostavno utvrditi tonalnom liminarnom audiometrijom i sugerišu da ove bolesnika treba upućivati na procenu stanja sluha.

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“…The acoustic coefficients of reflection, transmission, and absorption of all the composites were obtained in frequencies from 50 to 10, 000 Hz. It is important to note that the audible interval goes from 20 to 20,000 Hz; 18 however, there are reports of effects on human health due to exposure to frequencies above 5,000 Hz; [19][20][21] for this reason, it is important to evaluate acoustic barriers at intervals higher wide. Additionally, the effect of temperature and humidity on the acoustic coefficients was studied; the experiments were carried out at 30, 50, and 70°C, and the humidity process was controlled by adding a drop of water to each sample during four cycles.…”

Section: Introductionmentioning

confidence: 99%

Acoustic properties of composites materials based on bentonite and coconut or cactus (nopal) fibers

Martínez

Loera‐Serna

Vázquez-Cerón

2023

Journal of Composite Materials

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Materials made from natural fibers or waste have been studied to acquire a composite with good acoustical isolation properties, commercial materials used in this concern are polyurethane foam, fiberglass, Rockwool, and drywall. This work proposes using waste coconut and cactus ( Opuntia ficus-indica) fibers to synthesize bentonite composites and study their physicochemical and acoustic properties. Physicochemical properties of precursor and composites (75% wt. fiber) were determined by XRD, FTIR, N2 adsorption, optical, and SEM microscopies. The transmission, reflection, and absorption coefficients, 50 to 10,000 Hz, were obtained in an impedance tube and were compared with commercial materials. The composites were subjected to surface humidity and thermal (30, 50, and 70°C) tests to evaluate the stability of acoustic properties. The mechanical properties of the composites are improved with the addition of bentonite, hardness is increased by 6.7% and 0.9%, and the density is decreased by 73.6% and 45.5%, for coconut and nopal, respectively, porosity also changes. We corroborated the significant presence of montmorillonite in bentonite (XRD), while the nopal or coconut fibers are composed of hemicellulose, cellulose, and lignin (FTIR). Also, mucilage was identified in the nopal samples as adherent biopolymer that generates stability either thermally or in wetting conditions. Coconut fiber has a high absorption coefficient (similar to polyurethane), which is reduced with humidity. However, by adding bentonite, the reflection is more elevated, and transmission is lower than commercial materials. The bentonite and nopal (fiber and composite) presented stability in the acoustic coefficients as a function of humidity and temperature.

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Evaluation of hearing loss parameters in workers and its relationship with baseline blood glucose levels

Cited by 3 publications

References 16 publications

Evaluation of Hearing Loss in Pilots

Evaluation of Hearing Loss in Pilots

Assessment of hearing loss severity in patients with type 2 diabetes mellitus

Acoustic properties of composites materials based on bentonite and coconut or cactus (nopal) fibers

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