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[PMID]:28648121
[Au] Autor:Bulut E; Öztürk L
[Ad] Endereço:1 Department of Audiology, Trakya University Faculty of Health Sciences , Edirne, Turkey.
[Ti] Título:Spontaneous otoacoustic emission recordings during contralateral pure-tone activation of medial olivocochlear reflex.
[So] Source:Physiol Int;104(2):171-182, 2017 Jun 01.
[Is] ISSN:2498-602X
[Cp] País de publicação:Hungary
[La] Idioma:eng
[Ab] Resumo:We hypothesized that cochlear frequency discrimination occurs through medial olivocochlear efferent (MOCE)-induced alterations in outer hair cell (OHC) electromotility, which is independent from basilar membrane traveling waves. After obtaining informed consent, volunteers with normal hearing (n = 10; mean age: 20.6 ± 1.2 years) and patients with unilateral deafness (n = 10; mean age: 30.2 ± 17.9 years) or bilateral deafness (n = 8; mean age: 30.7 ± 13.8 years) underwent a complete physical and audiological examination, and audiological tests including transient evoked otoacoustic emission and spontaneous otoacoustic emission (TEOAE and SOAE, respectively). SOAE recordings were performed during contralateral pure-tone stimuli at 1 and 3 kHz. SOAE recordings in the presence of contralateral pure-tone stimuli showed frequency-specific activation out of the initial frequency range of SOAE responses. Basilar membrane motion during pure-tone stimulation results from OHC activation by means of MOCE neurons rather than from a traveling wave. Eventually, frequency-specific responses obtained from SOAEs suggested that OHC electromotility may be responsible for frequency discrimination of the cochlea independently from basilar membrane motion.
[Mh] Termos MeSH primário: Estimulação Acústica/métodos
Vias Auditivas/fisiologia
Cóclea/fisiologia
Emissões Otoacústicas Espontâneas/fisiologia
Nível de Percepção Sonora/fisiologia
Reflexo Acústico/fisiologia
Complexo Olivar Superior/fisiologia
[Mh] Termos MeSH secundário: Cóclea/inervação
Feminino
Seres Humanos
Masculino
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170914
[Lr] Data última revisão:
170914
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170627
[St] Status:MEDLINE
[do] DOI:10.1556/2060.104.2017.2.7


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[PMID]:28249630
[Au] Autor:Arslan HH; Cebeci S; Yildizoglu U; Pusat S; Yavuz F
[Ad] Endereço:Department of Otorhinolaryngology Head and Neck Surgery,Gulhane Military Medical Academy,Etlik,Ankara,Turkey.
[Ti] Título:Effects of thiocolchicoside, a commonly used myorelaxant, on the acoustic reflex.
[So] Source:J Laryngol Otol;131(6):497-500, 2017 Jun.
[Is] ISSN:1748-5460
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:OBJECTIVE: To determine whether thiocolchicoside, a commonly used myorelaxant, may impair the acoustic reflex. METHODS: Forty-two patients scheduled to receive thiocolchicoside treatment for different reasons were enrolled in the study. Acoustic reflex thresholds at 500, 1000, 2000 and 4000 Hz were determined and analysed statistically pre-treatment and on the 5th day of treatment. RESULTS: Increases were observed in the mean acoustic reflex thresholds on the 5th day of treatment compared to pre-treatment, at all frequencies, except right contralateral thresholds at 500 and 2000 Hz. These increases were statistically significant for right ipsilateral thresholds at 2000 and 4000 Hz, left ipsilateral thresholds at 500, 1000, 2000 and 4000 Hz, and left contralateral thresholds at 2000 and 4000 Hz (p ≤ 0.05), but not at other frequencies (p > 0.05). CONCLUSION: Muscle relaxant drugs, especially those affecting the central nervous system, may weaken the stapedial muscle so that the ability of noise to cause acoustic trauma may become evident. For this reason, physicians should advise their patients to avoid loud noises when muscle relaxant therapy is prescribed.
[Mh] Termos MeSH primário: Limiar Auditivo/efeitos dos fármacos
Colchicina/análogos & derivados
Audição/efeitos dos fármacos
Fármacos Neuromusculares/efeitos adversos
Reflexo Acústico/efeitos dos fármacos
[Mh] Termos MeSH secundário: Testes de Impedância Acústica/métodos
Adulto
Audiometria de Tons Puros/métodos
Colchicina/administração & dosagem
Colchicina/efeitos adversos
Feminino
Perda Auditiva Provocada por Ruído/etiologia
Seres Humanos
Masculino
Meia-Idade
Fármacos Neuromusculares/administração & dosagem
Ruído/efeitos adversos
Estudos Prospectivos
Estapédio/efeitos dos fármacos
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Neuromuscular Agents); SML2Y3J35T (Colchicine); T1X8S697GT (thiocolchicoside)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170814
[Lr] Data última revisão:
170814
[Sb] Subgrupo de revista:AIM; IM
[Da] Data de entrada para processamento:170303
[St] Status:MEDLINE
[do] DOI:10.1017/S0022215117000512


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[PMID]:28168713
[Au] Autor:Hackley SA; Ren X; Underwood A; Valle-Inclán F
[Ad] Endereço:Department of Psychological Sciences, University of Missouri, Columbia, Columbia, Missouri, USA.
[Ti] Título:Prepulse inhibition and facilitation of the postauricular reflex, a vestigial remnant of pinna startle.
[So] Source:Psychophysiology;54(4):566-577, 2017 Apr.
[Is] ISSN:1540-5958
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:If the postauricular reflex (PAR) is to be used effectively in studies of emotion and attention, its sensitivity to basic modulatory effects such as prepulse inhibition and facilitation must be determined. Two experiments were carried out with healthy young adults to assess the effects of transient and sustained visual prestimuli on the pinna-flexion response to trains of startle probes. In the first experiment, participants passively viewed a small white square. It was displayed from 1,000 ms prior to onset of a train of noise bursts until the end of that train. Relative to no-prepulse control trials, PAR amplitude was inhibited, possibly due to the withdrawal of attentional resources from the auditory modality. In the second experiment, participants performed a visual oddball task in which irrelevant trains of startle probes followed most briefly displayed task stimuli (checkerboards). Prepulse inhibition was observed when a transient stimulus preceded the first probe at a lead time of 100 ms. Amplitude facilitation was observed at longer lead times. In addition to documenting the existence of prepulse inhibition and facilitation, the data suggest that the PAR is not elicited by visual stimuli, that temporal expectancy does not influence its amplitude or latency, and that this vestigial microreflex is resistant to habituation. Results are interpreted in light of a recent theory that the human PAR is a highly degraded pinna startle, in which the reflex arc no longer includes the startle center (nucleus reticularis pontis caudalis).
[Mh] Termos MeSH primário: Pavilhão Auricular/fisiologia
Inibição Pré-Pulso/fisiologia
Reflexo Acústico
Reflexo de Sobressalto
[Mh] Termos MeSH secundário: Estimulação Acústica
Adulto
Atenção/fisiologia
Percepção Auditiva
Feminino
Seres Humanos
Masculino
Estimulação Luminosa
Percepção Visual
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1706
[Cu] Atualização por classe:170615
[Lr] Data última revisão:
170615
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170208
[St] Status:MEDLINE
[do] DOI:10.1111/psyp.12819


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[PMID]:27957612
[Au] Autor:Keefe DH; Feeney MP; Hunter LL; Fitzpatrick DF
[Ad] Endereço:Boys Town National Research Hospital, 555 North 30th Street, Omaha, NE, 68131, USA. Douglas.Keefe@boystown.org.
[Ti] Título:Aural Acoustic Stapedius-Muscle Reflex Threshold Procedures to Test Human Infants and Adults.
[So] Source:J Assoc Res Otolaryngol;18(1):65-88, 2017 Feb.
[Is] ISSN:1438-7573
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Power-based procedures are described to measure acoustic stapedius-muscle reflex threshold and supra-threshold responses in human adult and infant ears at frequencies from 0.2 to 8 kHz. The stimulus set included five clicks in which four pulsed activators were placed between each pair of clicks, with each stimulus set separated from the next by 0.79 s to allow for reflex decay. Each click response was used to detect the presence of reflex effects across frequency that were elicited by a pulsed broadband-noise or tonal activator in the ipsilateral or contralateral test ear. Acoustic reflex shifts were quantified in terms of the difference in absorbed sound power between the initial baseline click and the later four clicks in each set. Acoustic reflex shifts were measured over a 40-dB range of pulsed activators, and the acoustic reflex threshold was objectively calculated using a maximum 10 likelihood procedure. To illustrate the principles underlying these new reflex tests, reflex shifts in absorbed sound power and absorbance are presented for data acquired in an adult ear with normal hearing and in two infant ears in the initial and follow-up newborn hearing screening exams, one with normal hearing and the other with a conductive hearing loss. The use of absorbed sound power was helpful in classifying an acoustic reflex shift as present or absent. The resulting reflex tests are in use in a large study of wideband clinical diagnosis and monitoring of middle-ear and cochlear function in infant and adult ears.
[Mh] Termos MeSH primário: Limiar Auditivo
Reflexo Acústico/fisiologia
[Mh] Termos MeSH secundário: Estimulação Acústica
Adulto
Audição
Perda Auditiva Condutiva/fisiopatologia
Seres Humanos
Lactente
Recém-Nascido
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171026
[Lr] Data última revisão:
171026
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161214
[St] Status:MEDLINE
[do] DOI:10.1007/s10162-016-0599-z


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[PMID]:27928634
[Au] Autor:Hunter LL; Keefe DH; Feeney MP; Fitzpatrick DF
[Ad] Endereço:Division of Audiology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH, 45213, USA. lisa.hunter@cchmc.org.
[Ti] Título:Pressurized Wideband Acoustic Stapedial Reflex Thresholds: Normal Development and Relationships to Auditory Function in Infants.
[So] Source:J Assoc Res Otolaryngol;18(1):49-63, 2017 Feb.
[Is] ISSN:1438-7573
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:This study analyzed effects of pressurization on wideband acoustic stapedial-muscle reflex (ASR) tests in infants cared for in normal newborn (NN) and neonatal intensive care units (NICU). Effects of hearing-screening outcomes on ASR threshold measurements were also evaluated, and a subsequent longitudinal study established normative threshold ranges over the first year after birth. An initial experiment compared thresholds in newborns measured at ambient pressure in the ear canal and at the tympanometric peak pressure. ASR thresholds for broadband noise were higher for ears that did not pass newborn hearing screening and ASR threshold was 14 dB higher for real-ear compared to coupler conditions. Effects of pressurization were significant for ears that passed screening; thus, ASR testing in infants should be conducted at tympanometric peak pressure. ASR threshold was significantly higher for ears that referred on transient evoked otoacoustic emissions and Auditory Brainstem Response (ABR) screening tests and also for ears with conductive and sensorineural hearing loss diagnosed by ABR. Developmental ASR changes were significant over the first year for both normal and NICU infants. Wideband pressurized ASR thresholds are a clinically relevant measure of newborn hearing screening and diagnostic outcomes.
[Mh] Termos MeSH primário: Limiar Auditivo
Audição
Reflexo Acústico/fisiologia
[Mh] Termos MeSH secundário: Testes de Impedância Acústica
Potenciais Evocados Auditivos do Tronco Encefálico
Feminino
Seres Humanos
Lactente
Recém-Nascido
Masculino
Triagem Neonatal
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171026
[Lr] Data última revisão:
171026
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161209
[St] Status:MEDLINE
[do] DOI:10.1007/s10162-016-0595-3


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[PMID]:27878599
[Au] Autor:Kunze S; Nickisch A; von Voss H; Mall V
[Ad] Endereço:Schwerpunkt Hören - Sprache - CI-Zentrum für Kinder, kbo-Kinderzentrum München, Heiglhofstr. 63, 81377, München, Deutschland. Silke.Kunze@kbo.de.
[Ti] Título:[Acoustic reflexes of children with and without central auditory processing disorders].
[Ti] Título:Stapediusreflexe von Kindern mit und ohne auditive Verarbeitungs- und Wahrnehmungsstörungen..
[So] Source:HNO;65(4):328-336, 2017 Apr.
[Is] ISSN:1433-0458
[Cp] País de publicação:Germany
[La] Idioma:ger
[Ab] Resumo:BACKGROUND: According to international standards, determination of acoustic reflex thresholds (ART) is one of the established objective measurements in the diagnostic workup of central auditory processing disorders (CAPD). However, there is still no evidence for the significance of ART in CAPD diagnosis. PATIENTS AND METHODS: This study tested 57 children with proven CAPD and 50 healthy children (control group) with regard to group differences in mean ART (sine tones or bandpass-filtered noise). Additionally, it was investigated whether there were group differences between the mean dissociations of ART for sine tones or bandpass filtered noise. RESULTS: Neither ipsi- nor contralaterally were significant clinically relevant group differences (p < 0.050) between the mean ART of children with and without CAPD found. After Bonferroni correction, a significant group difference in the percentage of non-triggered reflexes was only observed with left-sided contralateral 2 kHz stimuli. Concerning the number of dissociations ≥20 dB, no significant group differences (p < 0.050) were detected either ipsi- or contralaterally (Fisher's test). CONCLUSION: The results of the study seem to indicate no clinically relevant ability of ART measurements to distinguish between children with and without CAPD. This renders the benefit of ART measurements for CAPD diagnosis questionable.
[Mh] Termos MeSH primário: Testes Auditivos/métodos
Transtornos do Desenvolvimento da Linguagem/diagnóstico
Transtornos do Desenvolvimento da Linguagem/fisiopatologia
Reflexo Acústico
[Mh] Termos MeSH secundário: Estimulação Acústica
Criança
Feminino
Seres Humanos
Transtornos do Desenvolvimento da Linguagem/classificação
Masculino
Reprodutibilidade dos Testes
Sensibilidade e Especificidade
Limiar Sensorial
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171113
[Lr] Data última revisão:
171113
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161124
[St] Status:MEDLINE
[do] DOI:10.1007/s00106-016-0271-2


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[PMID]:27860516
[Au] Autor:Counter SA; Buchanan LH; Ortega F; Jacobs AB; Laurell G
[Ad] Endereço:1 Department of Neurology, Harvard Medical School/The Biological Laboratories , Cambridge, Massachusetts.
[Ti] Título:Assessment of the Brainstem-Mediated Stapedius Muscle Reflex in Andean Children Living at High Altitudes.
[So] Source:High Alt Med Biol;18(1):37-45, 2017 Mar.
[Is] ISSN:1557-8682
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Counter, S. Allen, Leo H. Buchanan, Fernando Ortega, Anthony B. Jacobs, and Göran Laurell. Assessment of the brainstem-mediated stapedius muscle reflex in Andean children living at high altitudes. High Alt Med Biol. 18:37-45, 2017.-This study examined the physiological thresholds, amplitude growth, and contraction duration of the acoustic stapedius reflex (ASR) in Andean children aged 2-17 years living at altitudes of 2850 m (Altitude I Group) and 3973 m (Altitude II Group) as part of a general medical assessment of the health status of the children. The brainstem-mediated ASR reveals the integrity of the neuronal components of the auditory reflex arc, including the cochlea receptors, eight cranial nerves, and brainstem neural projections to the cochlear nuclei, bilateral superior olivary nuclei, facial nerve nuclei, and facial nerve and its stapedius branch. Uncrossed (ipsilateral) and crossed (contralateral) ASR thresholds (ASRT), ASR amplitude growth (ASRG) function, and ASR muscle contraction duration (decay/fatigue) (ASRD) were measured noninvasively with 500, 1000 Hz and broadband (bandwidth = 125-4000 Hz) noise stimulus activators using a middle ear immittance system. Oxygen saturation (SaO ) level and heart rate were measured in a subsample of the study group. Statistical analyses revealed that the Altitude I and Altitude II groups had ASRT, ASRG function, and ASRD rates comparable to children at sea level and that the two groups were not significantly different for any of the ASR measures. No significant association was found between SaO or heart rate and ASRT, growth, and muscle fatigue rate. In conclusion, the assessment of the ASR in children in the high-altitude groups revealed normal function. Furthermore, the results indicate no adverse oto-physiological effects of altitude on the brainstem-mediated ASR at elevations between 2850 and 4000 m and suggest normal middle ear and auditory brainstem function.
[Mh] Termos MeSH primário: Altitude
Potenciais Evocados Auditivos do Tronco Encefálico/fisiologia
Reflexo Acústico/fisiologia
Estapédio/fisiologia
[Mh] Termos MeSH secundário: Testes de Impedância Acústica/métodos
Adolescente
Criança
Pré-Escolar
Equador/etnologia
Feminino
Voluntários Saudáveis
Seres Humanos
Masculino
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171013
[Lr] Data última revisão:
171013
[Sb] Subgrupo de revista:IM; S
[Da] Data de entrada para processamento:161119
[St] Status:MEDLINE
[do] DOI:10.1089/ham.2016.0082


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[PMID]:27577043
[Au] Autor:Canale A; Albera R; Lacilla M; Canosa A; Albera A; Sacco F; Chiò A; Calvo A
[Ad] Endereço:ENT Department, University of Torino, Torino, Italy. andrea.canale@unito.it.
[Ti] Título:Acoustic reflex patterns in amyotrophic lateral sclerosis.
[So] Source:Eur Arch Otorhinolaryngol;274(2):679-683, 2017 Feb.
[Is] ISSN:1434-4726
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:The aim of the study is to investigate acoustic reflex testing in amyotrophic lateral sclerosis patients. Amplitude, latency, and rise time of stapedial reflex were recorded for 500 and 1000 Hz contralateral stimulus. Statistical analysis was performed by the Wilcoxon test and the level of significance was set at 5 %. Fifty-one amyotrophic lateral sclerosis patients and ten sex- and age-matched control subjects were studied. Patients were further divided in two groups: amyotrophic lateral sclerosis-bulbar (38 cases, with bulbar signs at evaluation) and amyotrophic lateral sclerosis-spinal (13 cases, without bulbar signs at evaluation). Stapedial reflex was present in all patients. There was a statistically significant difference in the mean amplitude, latency, and rise time between the amyotrophic lateral sclerosis patients as compared with the controls. Amplitude was lower in both the amyotrophic lateral sclerosis-bulbar and the amyotrophic lateral sclerosis-spinal patients than in the controls (p < 0.05) and rise time was longer in both patient groups compared with the controls (p < 0.05). These results confirm the presence of abnormal acoustic reflex patterns in amyotrophic lateral sclerosis cases with bulbar signs and, moreover, suggesting a possible subclinical involvement of the stapedial motor neuron even in amyotrophic lateral sclerosis-spinal patients. Amplitude and rise time seem to be good sensitive parameters for investigating subclinical bulbar involvement.
[Mh] Termos MeSH primário: Esclerose Amiotrófica Lateral/fisiopatologia
Reflexo Acústico
[Mh] Termos MeSH secundário: Adulto
Idoso
Estudos de Casos e Controles
Feminino
Seres Humanos
Masculino
Meia-Idade
Estapédio/fisiopatologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1703
[Cu] Atualização por classe:170928
[Lr] Data última revisão:
170928
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160901
[St] Status:MEDLINE
[do] DOI:10.1007/s00405-016-4284-y


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[PMID]:27619038
[Au] Autor:Kopala W; Kukwa A
[Ad] Endereço:The Provincial Children's Specialized Hospital, Department of Otolaryngology, Olsztyn, Poland. Electronic address: wkopala@onet.pl.
[Ti] Título:Evaluation of the acoustic (stapedius) reflex test in children and adolescents with peripheral facial nerve palsy.
[So] Source:Int J Pediatr Otorhinolaryngol;89:102-6, 2016 Oct.
[Is] ISSN:1872-8464
[Cp] País de publicação:Ireland
[La] Idioma:eng
[Ab] Resumo:INTRODUCTION: The stapedius nerve is one of the branches of the facial nerve in the temporal bone. It supplies the stapedius muscle, which is responsible for the attenuation reflex that protects the inner ear from loud noises. The stapedius (acoustic) reflex (SR) test is useful in identifying the site of facial nerve injury. The return of the SR (acoustic) to normal after an injury is a good prognostic factor in the treatment of facial nerve palsy. OBJECTIVE: The aim of this study was to evaluate the effect of FNP on the SR (acoustic) response and determine the acoustic reflex threshold (ART) levels on the affected side. MATERIAL AND METHOD: In this study, 70 patients, 3-7 years old, were screened. The study population consisted of 26 boys (37%) and 44 girls (63%). Follow-up tests were performed 3-18 months after the initial tests. RESULTS: Most patients in the study population had a negative SR (acoustic) response on the affected side. In other patients, mean ART values were statistically higher on the affected side. There was no statistically significant relationship between a reflex response and the time from the onset of facial nerve palsy. DISCUSSION: In the available literature, the SR (acoustic) testing is limited in determining whether or not the reflex is present without stimulus frequency or ART measurements. It is estimated that the reflex response is negative with ipsilateral stimulation on the affected side in 35-80% patients. CONCLUSIONS: The SR (acoustic) is absent in most patients on the affected side. The ART value was statistically higher on the affected side. The SR (acoustic) response was statistically time independent.
[Mh] Termos MeSH primário: Paralisia Facial/fisiopatologia
Reflexo Acústico/fisiologia
Estapédio/fisiopatologia
[Mh] Termos MeSH secundário: Testes de Impedância Acústica
Criança
Pré-Escolar
Feminino
Seres Humanos
Masculino
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1703
[Cu] Atualização por classe:170817
[Lr] Data última revisão:
170817
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160914
[St] Status:MEDLINE


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[PMID]:27497398
[Au] Autor:Ma X; Li YW; Ma L; McPherson B
[Ad] Endereço:Division of Speech and Hearing Sciences, Faculty of Education, University of Hong Kong, Hong Kong, China. Electronic address: maxiaoran1986@gmail.com.
[Ti] Título:Chinese children with nonsyndromic cleft lip/palate: Factors associated with hearing disorder.
[So] Source:Int J Pediatr Otorhinolaryngol;88:117-23, 2016 Sep.
[Is] ISSN:1872-8464
[Cp] País de publicação:Ireland
[La] Idioma:eng
[Ab] Resumo:OBJECTIVES: This study examined the auditory status of Chinese children with nonsyndromic cleft lip/palate (NSCL/P), investigated factors associated with peripheral hearing loss and compared results with earlier studies in western countries. METHODS: Case history profiles and audiological data from 148 Chinese children with NSCL/P, aged between 6 and 15 years, who attended the Cleft Lip and Palate Clinic Center in a major Chinese urban hospital from July 2012 to September 2013 were acquired. The audiological status of the participants was reviewed, based on the results of their pure tone audiometry, tympanometry and acoustic reflex thresholds assessments. Factors including age, gender, cleft type, residential locality and school achievement were examined in relation to auditory status. RESULTS: Findings revealed that 17% of the Chinese children with NSCL/P had hearing impairment at the time of assessment. Unilateral hearing loss was noted in 12% of children and in 5% of cases bilateral hearing loss was noted. In the majority of cases the hearing loss was slight and conductive in nature. Age, gender, residential locality and school achievement were found to have no relationship with severity of hearing loss. Children with cleft lip showed a lower degree of hearing impairment than children with cleft palate or cleft lip and palate. CONCLUSION: Similar to studies for western children, Chinese children with CL/P associated with no known syndrome are at risk of peripheral hearing loss, generally of conductive type. However, the prevalence of peripheral hearing loss appears to be less than in western children with NSCL/P. Ethnic/racial factors may be a major contributing factor accounting for the discrepancies between the current results and western studies.
[Mh] Termos MeSH primário: Fenda Labial/epidemiologia
Fissura Palatina/epidemiologia
Perda Auditiva/epidemiologia
[Mh] Termos MeSH secundário: Logro
Testes de Impedância Acústica
Adolescente
Fatores Etários
Audiometria de Tons Puros
Criança
China/epidemiologia
Comorbidade
Feminino
Seres Humanos
Masculino
Prevalência
Reflexo Acústico
Fatores Sexuais
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1703
[Cu] Atualização por classe:170817
[Lr] Data última revisão:
170817
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160807
[St] Status:MEDLINE



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BIREME/OPAS/OMS - Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde