Abstract:
:The biocompatibility of commercially available polyimides was examined in relation to the sensory and neural structures of the cochlea. Thin films of four different polyimides were prepared as substrates for photolithographically produced scala tympani electrode arrays and implanted in 32 cat cochleae. Following at least three months implantation time, the animals were sacrificed and the cochlea were evaluated histologically for toxicity, differences in the severity of ototoxic effects among the four polyimide groups, and relationships among the different kinds of histopathology secondary to implantation. Findings included the following. Inflammatory reaction to the implants, when present, was generally mild and confined to the immediate vicinity of the implant. Additionally, ototoxic effects were essentially the same across the four groups. Finally, a clear interdependence among the different kinds of cochlear damage secondary to implantation was demonstrated.
journal_name
Acta Otolaryngoljournal_title
Acta oto-laryngologicaauthors
Haggerty HS,Lusted HSdoi
10.3109/00016488909127474subject
Has Abstractpub_date
1989-01-01 00:00:00pages
13-22issue
1-2eissn
0001-6489issn
1651-2251journal_volume
107pub_type
杂志文章abstract:BACKGROUND:pH monitoring can reflect the changes in H+ in the airway. OBJECTIVES:To explore the utility of pharyngeal pH monitoring in the diagnosis of laryngopharyngeal reflux disease (LPRD). MATERIAL AND METHODS:Clinical data from 956 suspected LPRD patients from February 2016 to March 2018 were analyzed retrospect...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489.2019.1571280
更新日期:2019-03-01 00:00:00
abstract:OBJECTIVE:To investigate the effect of imagining a fixed spatial reference on balance control. MATERIAL AND METHODS:Twenty-one healthy subjects were asked to remain as stable as possible while standing on a sway-referenced platform (NeuroCom Equitest posturography system). Subjects were instructed to keep their eyes o...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480410017503
更新日期:2004-10-01 00:00:00
abstract:BACKGROUND:Smell and taste disorders occur in COVID-19 with a high prevalence, but little is known about the duration of the symptoms. In particular, studies using validated olfactory tests are very rare to date. AIMS/OBJECTIVES:The aim of this study was to determine the olfactory function of COVID-19 recoveries by a ...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489.2020.1811999
更新日期:2020-12-01 00:00:00
abstract::Glycerol (2 g/kg body weight), or 0.15 M NaCl for control animals, was administered to rats by i.v. injection. The dose was chosen in order to obtain an osmolarity increase in plasma of about 15 mosm/l 1 h after the glycerol administration, an increase which is similar to that observed in the human glycerol dehydratio...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489609137887
更新日期:1996-07-01 00:00:00
abstract::The submucosal glands in the rat nose are characterized by the presence of both neutral and acid glycoproteins, which are important constituents of nasal and tracheobronchial secretions. This study is an attempt to gain a better insight into the secretion of these two types of glycoproteins and its neural regulation. ...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488709128287
更新日期:1987-11-01 00:00:00
abstract:CONCLUSIONS:We conclude that the capsaicin inhalation test is useful to directly assess cough reflex and sensation around the larynx, while it indirectly reflects central nervous system function. OBJECTIVES:To understand the state of the cough reflex before patients with dysphagia start eating. METHODS:We studied the...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489.2010.516013
更新日期:2011-01-01 00:00:00
abstract::Gamma-aminobutyric acid (GABA) is presumed to be a neurotransmitter candidate in the vestibular periphery of mammals. However, experimental reports about the localization of GABA in afferents or efferents of the vestibular systems are contradictory. It is an open question whether there are species differences in the a...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489850155198
更新日期:1998-01-01 00:00:00
abstract::We report a case of electromagnetic interference between a bone-anchored hearing aid (BAHA) and a cellular phone. A 54-year-old women was successfully treated for severe mixed conductive and sensorineural hearing loss with a BAHA. Five years after implantation, the patient experienced a sudden feeling of dizziness, ac...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/000164800750061723
更新日期:2000-10-01 00:00:00
abstract:CONCLUSION:Intra-tympanic dexamethasone injection (ITD) could serve as a first-line intra-tympanic (IT) treatment for Meniere's disease (MD), regardless of hearing level. Even if the response to initial ITD course was unsatisfactory, a repeated course may be beneficial with some patients. OBJECTIVES:This study examine...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489.2016.1224920
更新日期:2017-02-01 00:00:00
abstract::Based on the late results of tympanoplasty on 300 ears and of one-stage mastoidectomy and tympanoplasty on 269 discharging ears, the problems involved in staging tympanoplasty are discussed. The results of one-stage operations were found to be satisfactory 2-10 years after operation. The frequency of recurrent cholest...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016487609120906
更新日期:1976-09-01 00:00:00
abstract::EMG recordings of the neck muscles (biventer cervicis, complexus, splenius, longus capitis) of decerebrate cats were obtained during pitch and roll stimulations (sinusoidal stimulation: 30 degrees p-p amplitude, 0.2 Hz frequency). Most of the EMG responses to pitch showed activation peaks leading the position stimuli ...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489309135800
更新日期:1993-05-01 00:00:00
abstract::The condition of the cochlear vasculature was evaluated in 7 normal guinea pigs subsequent to fatal aortic hemorrhage. The cochleas were prepared for histological analysis using a soft surface preparation technique. The data analysis revealed two statistically significant differences: an increase in the number of aggr...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488409130986
更新日期:1984-03-01 00:00:00
abstract::Angioneurotic edema is a non-pitting edema which is usually limited to the skin and the mucous membranes of the face and upper aerodigestive tract. The risk of acute upper airway obstruction makes angioneurotic edema a concern for emergency room physicians, internists and otolaryngologists because prompt recognition o...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480310005129
更新日期:2003-10-01 00:00:00
abstract::Efforts to evaluate findings in the nystagmogram were made in a material of 338 vertiginous and dizzy patients. A spontaneous nystagmus, a positional nystagmus as well as a difference in caloric reactivity are as solitary findings of lettle value for revealing peripheral disorders. On the other hand, central disturban...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016487809124728
更新日期:1978-07-01 00:00:00
abstract::Thirty-two patients affected by idiopathic benign paroxysmal positional vertigo (BPPV) of the posterior semicircular canal were studied before, 3 days and I month after a resolutive Semont manoeuvre by means of dynamic posturography. The overall postural control in BPPV patients was shown to be impaired, as demonstrat...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489850183340
更新日期:1998-06-01 00:00:00
abstract::Ultrastructural changes of the extrasensory epithelium in the scala media of guinea pig cochleae were observed from 3 to 137 days after perilymphatic perfusion with 20% streptomycin. The degeneration started in the organ of Corti, progressed to the interdental cells and roots of the outer sulcus cells and finally invo...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016487809107516
更新日期:1978-11-01 00:00:00
abstract::To elucidate immune mechanisms in otitis media, middle ear infection was induced in 12 rats by intratympanic inoculation of Streptococcus pneumoniae type 3, either the ipsilateral or the contralateral middle ear being re-challenged 4 weeks later. Otomicroscopy inspection confirmed the presence of acute otitis media (A...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489109100760
更新日期:1991-01-01 00:00:00
abstract::45CaCl2 was injected into gerbils in single or multiple doses, and the resulting radioactivity in serum, otoconial CaCO3, bone samples, and selected labyrinthine epithelium was determined by liquid scintillation spectrometry. Incorporation into both utricular and saccular otoconia occurred at the rate of 0.06-0.07 nmo...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016487509121327
更新日期:1975-09-01 00:00:00
abstract::A prospective study was carried out to objectively quantificate the most important predictive factors in idiopathic facial paralysis (Bell's palsy). Stepwise discriminant analysis was applied to data prospectively obtained from 570 patients with Bell's palsy treated at the ENT Department of La Paz Hospital between Jan...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488809106436
更新日期:1988-09-01 00:00:00
abstract::We have recorded auditory evoked potentials, of both neurogenic and myogenic origin, in cats having neonatal high frequency cochlear hearing loss. Using frequency specific stimuli (tone pips) and by measuring responses near to threshold, we have probed tonotopic (or cochleotopic) representation within the brainstem-mi...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489309135763
更新日期:1993-01-01 00:00:00
abstract:CONCLUSION:Partial deafness cochlear implantation (PDCI) is a feasible means of treating individuals who have good low frequency hearing, but a severe to profound hearing loss in the mid to high frequencies. The individuals have benefit in noise and show significant benefit in a number of difficult listening conditions...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480600606632
更新日期:2006-09-01 00:00:00
abstract::An influence of complete mechanical obstruction of the nasal passages was investigated in 6 apneic-free sons of fullblown sleep apnea patients and in 4 age-matched normal young adults without a familial history of sleep apnea. Nasal obstruction caused a significant increase in the number of sleep apneas in the sons of...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488409130972
更新日期:1984-01-01 00:00:00
abstract::The maintenance of upright stance in humans requires the integrative evaluation of vestibular, visual, and proprioceptive information. Recent experiments prove the existence of fast vestibulo-spinal reactions in humans. Their physiological significance for the compensation of sudden external displacements of the body ...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016488909127518
更新日期:1989-05-01 00:00:00
abstract::The tonsils are mucosa-associated lymphoid organs. Several details regarding their normal function and pathological alteration are still unknown. In this review the relationship of the tonsils to similar lymphoid organs is discussed, the possibilities of antigen uptake (M cells and micropores of the crypt epithelium) ...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章,评审
doi:
更新日期:1987-05-01 00:00:00
abstract::During the period 1967-1985, 95 primary tracheal carcinomas occurred in Finland. The mean annual incidence rate was one per one million inhabitants, the male:female ratio being 7:3. There was a significant increase of the disease by increasing age with the exception of 70-79 years. The most common location was the low...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489109100772
更新日期:1991-01-01 00:00:00
abstract::Six profoundly deaf patients were studied with mapping evoked potentials (MEP) using an acoustic signal passed through the vibrotactile prosthesis. This stimulus produced an activation of the central sulcus brain cortex. When the proSthesis was placed in the presenternal area it showed N1 P1 potentials with higher vol...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489709117771
更新日期:1997-03-01 00:00:00
abstract:CONCLUSION:There is no increased risk of postoperative haemorrhage for abscess tonsillectomies in comparison to elective tonsillectomies. OBJECTIVE:There is still controversy as regards the optimal management of peritonsillar abscess. Opponents of tonsillectomy à chaud cite an increased postoperative bleeding risk. Mo...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016480510012336
更新日期:2005-12-01 00:00:00
abstract:CONCLUSION:It is thought that oxidative stress may be the major cause of the increase in the oxide thiol form in the study group. The relationship between oxidative stress status and dynamic thiol/disulphide in nasal polyposis now needs to be investigated. OBJECTIVES:The purpose of this study was to evaluate the relat...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.1080/00016489.2016.1186833
更新日期:2016-11-01 00:00:00
abstract::Normal quantum type bone remodeling was studied in temporal bones of young domestic pigs by means of combined microradiography, osteofluorochrome labelling and osteoid staining. Evolving secondary osteons were morphologically normal although much less in the otic capsule than in the surrounding compacta of the tempora...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489009122540
更新日期:1990-09-01 00:00:00
abstract::Morphology of the tympanic membrane (TM) and external auditory canal (EAC) was studied in healthy, intact rat ears. TM-perforated ears (3 days after making the perforation) and TM-perforation-healed ears (14, 28 and 42 days after making the perforation). In intact ears, the epidermis in the annular region of the EAC d...
journal_title:Acta oto-laryngologica
pub_type: 杂志文章
doi:10.3109/00016489609137939
更新日期:1996-11-01 00:00:00