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[PMID]:29267386
[Au] Autor:Sarmento KMA; Sampaio ALL; Santos TGT; Oliveira CACP
[Ad] Endereço:Department of Otolaryngology, Brasilia Military Police Hospital, Brasilia, DF, Brazil.
[Ti] Título:High-frequency conductive hearing loss as a diagnostic test for incomplete ossicular discontinuity in non-cholesteatomatous chronic suppurative otitis media.
[So] Source:PLoS One;12(12):e0189997, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Chronic suppurative otitis media, with or without cholesteatoma, may lead to erosion of the ossicles and discontinuity of the ossicular chain. In incomplete ossicular discontinuity (IOD), partial erosion of the ossicles occurs, but some sound transmission is noted throughout the ossicular chain. High-frequency conductive hearing loss (HfCHL) has been considered a hallmark of incomplete ossicular discontinuity. This study aims to evaluate the use of HfCHL as a preoperative predictor of IOD in patients with non-cholesteatomatous chronic suppurative otitis media. The HfCHL test was defined as the preoperative air-bone gap (ABG) at 4 kHz minus the average of the ABG at 0.25 and 0.5 kHz. The test was applied in 328 patients before surgery and compared to intraoperative findings as the gold standard. At surgery, 201 (61.3%) patients had an intact ossicular chain, 44 (13.4%) had a complete ossicular discontinuity, and 83 (25.3%) exhibited an IOD. The best cutoff level was calculated as 10 dB. The HfCHL test to diagnose IOD had a sensitivity of 83% and a specificity of 92% with a post-test probability of 78% and a likelihood ratio of 10.2. We concluded that the HfCHL test is highly effective in predicting IOD in patients with non-cholesteatomatous chronic suppurative otitis media and that it should be used routinely as a screening test prior to surgery.
[Mh] Termos MeSH primário: Ossículos da Orelha/patologia
Perda Auditiva Condutiva/complicações
Otite Média Supurativa/complicações
[Mh] Termos MeSH secundário: Adolescente
Adulto
Audiometria de Tons Puros
Ossículos da Orelha/fisiopatologia
Feminino
Seres Humanos
Masculino
Meia-Idade
Otite Média Supurativa/patologia
Estudos Prospectivos
Sensibilidade e Especificidade
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180116
[Lr] Data última revisão:
180116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171222
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0189997


  2 / 2906 MEDLINE  
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[PMID]:28964300
[Au] Autor:Li J; Chen K; Li C; Yin D; Zhang T; Dai P
[Ad] Endereço:ENT Institute, Eye & ENT Hospital of Fudan University, China. Electronic address: ljy777@126.com.
[Ti] Título:Anatomical measurement of the ossicles in patients with congenital aural atresia and stenosis.
[So] Source:Int J Pediatr Otorhinolaryngol;101:230-234, 2017 Oct.
[Is] ISSN:1872-8464
[Cp] País de publicação:Ireland
[La] Idioma:eng
[Ab] Resumo:OBJECTIVES: Our aims were to measure and compare anatomical parameters of the ossicles in normal, congenital aural stenosis (CAS), and congenital aural atresia (CAA) ears. METHODS: This retrospective study was performed using three-dimensional reconstructed images derived from computed tomography scans of 20 normal subjects, 20 CAS patients, and 20 CAA patients. RESULTS: The lengths of the malleus handle and long process of the incus were greater in normal ears than in CAS and CAA ears (all P < 0.05). The angles of the incudostapedial joint and between the short and long processes of the incus were smaller in normal ears than in CAS and CAA ears (all P < 0.05). There were no significant differences in the positions of the malleus head and incudomalleolar joint, the size of the malleus head, the length of the short process of the incus, or the angle of the incudomalleolar joint (P > 0.05). CONCLUSIONS: Anatomical parameters of the lower part, but not of the upper part, of the ossicular chain in CAS and CAA ears differed from those in normal ears. Different branchial arch origins of the upper and lower parts of the ossicular chain may explain these findings. Dysplasia of the second arch, which develops into the lower part of the ossicular chain, may contribute to ossicular malformation in CAA and CAS. Accurate radiographic measurement of malformed ossicles may be useful for reconstructive surgery of CAA and CAS using the patient's native ossicular chain and for choosing an appropriate place for active middle ear implants.
[Mh] Termos MeSH primário: Ossículos da Orelha/anormalidades
Orelha/anormalidades
[Mh] Termos MeSH secundário: Adolescente
Adulto
Criança
Pré-Escolar
Anormalidades Congênitas/diagnóstico por imagem
Constrição Patológica
Orelha/diagnóstico por imagem
Ossículos da Orelha/diagnóstico por imagem
Feminino
Seres Humanos
Imagem Tridimensional/métodos
Masculino
Estudos Retrospectivos
Tomografia Computadorizada por Raios X/métodos
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171016
[Lr] Data última revisão:
171016
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171002
[St] Status:MEDLINE


  3 / 2906 MEDLINE  
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[PMID]:28688567
[Au] Autor:Govil N; Kaffenberger TM; Shaffer AD; Chi DH
[Ad] Endereço:Department of Otolaryngology, University of Pittsburgh Medical Center, Eye and Ear Institute, Suite 519, 203 Lothrop St, Pittsburgh, PA 15213, USA.
[Ti] Título:Factors influencing hearing outcomes in pediatric patients undergoing ossicular chain reconstruction.
[So] Source:Int J Pediatr Otorhinolaryngol;99:60-65, 2017 Aug.
[Is] ISSN:1872-8464
[Cp] País de publicação:Ireland
[La] Idioma:eng
[Ab] Resumo:OBJECTIVE: Ossicular chain disruption in children leads to conductive hearing loss. Few studies have focused on factors influencing successful results in pediatric ossicular chain reconstruction (OCR). We aim to determine whether demographic or surgical factors affect hearing outcomes in pediatric OCR. METHODS: We conducted a retrospective chart review of 120 patients undergoing OCR at our institution, a tertiary care hospital, between 2003 and 2014, with median length of follow-up of 2.2 years (range 0.1-9.3 years). Pediatric patients (<18 years old at time of surgical procedure) who had current procedural terminology (CPT) codes of OCR, and available pre- and post-operative audiograms were included in the study. Demographic information, surgical details, and pre- and post-operative pure-tone averages (PTA), speech reception thresholds (SRT), and air-bone gaps (ABG) were recorded from clinic notes, audiograms and operative reports. Differences between PTA, SRT and ABG pre- and post-operatively, as well as demographic and surgical factors, were evaluated using Wilcoxon rank-sum tests. Factors influencing revision were evaluated using Log-rank tests. RESULTS: A total of 120 patients (123 ears) were included. 35.8% of cases were revised, most commonly due to displaced prostheses. 28.5% of surgeries resulted in normal hearing (PTA ≤25 dB) post-operatively. Post-operative SRT and ABG were significantly better in patients with partial ossicular replacement prosthesis (PORP) compared with those with total ossicular replacement prosthesis (TORP) (p = 0.016, 0.027). Titanium prostheses resulted in better post-operative PTA and larger changes in PTA compared with all other materials (p = 0.034, p = 0.038). CONCLUSIONS: In our experience, children with titanium prostheses had better hearing outcomes than those with other materials, and children with PORP had better hearing outcomes than those with TORP.
[Mh] Termos MeSH primário: Ossículos da Orelha/cirurgia
Perda Auditiva Condutiva/cirurgia
Prótese Ossicular/efeitos adversos
Substituição Ossicular/métodos
[Mh] Termos MeSH secundário: Adolescente
Criança
Pré-Escolar
Feminino
Seguimentos
Audição/fisiologia
Testes Auditivos
Seres Humanos
Masculino
Estudos Retrospectivos
Titânio/uso terapêutico
Resultado do Tratamento
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
D1JT611TNE (Titanium)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170803
[Lr] Data última revisão:
170803
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170710
[St] Status:MEDLINE


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[PMID]:28608748
[Au] Autor:Ghavami Y; Haidar YM; Maducdoc M; Tjoa T; Moshtaghi O; Lin HW; Djalilian HR
[Ad] Endereço:1 Division of Neurotology and Skull Base Surgery, Department of Otolaryngology-Head and Neck Surgery, University of California, Irvine, Irvine, California, USA.
[Ti] Título:Tympanic Membrane and Ossicular-Sparing Modified Lateral Temporal Bone Resection.
[So] Source:Otolaryngol Head Neck Surg;157(3):530-532, 2017 Sep.
[Is] ISSN:1097-6817
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:A modified lateral temporal bone resection (mLTBR) is a unique technique that spares the tympanic membrane (TM) and ossicles in select patients with squamous cell carcinoma (SCCa). The records of 5 patients with SCCa of the temporal bone with negative frozen-section biopsy at the tympanic annulus were reviewed. The mean follow-up time for the patients was 29.2 months. One patient received postoperative radiation due to cervical nodal extracapsular spread. All patients were recurrence free as of the most recent follow-up (range, 8-50 months). Postoperative audiometry demonstrated an average conductive hearing loss of 9 dB (range, 0-17 dB). The mLTBR with sparing of the TM can be an effective alternative to the traditional lateral temporal bone resection (LTBR) with better hearing results for patients with SCCa involving the bony external auditory canal. In the short term, oncologic results of mLTBR appear equivalent to the LTBR. However, long-term follow-up is needed for >5-year outcomes.
[Mh] Termos MeSH primário: Carcinoma de Células Escamosas/cirurgia
Ossículos da Orelha
Tratamentos com Preservação do Órgão/métodos
Neoplasias Cranianas/cirurgia
Osso Temporal/cirurgia
Membrana Timpânica
[Mh] Termos MeSH secundário: Idoso
Idoso de 80 Anos ou mais
Seres Humanos
Masculino
Meia-Idade
Estudos Retrospectivos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170929
[Lr] Data última revisão:
170929
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170614
[St] Status:MEDLINE
[do] DOI:10.1177/0194599817712686


  5 / 2906 MEDLINE  
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[PMID]:28555607
[Au] Autor:Kalcioglu MT; Yilmaz U
[Ad] Endereço:Department of Otorhinolaryngology - Head and Neck Surgery, Istanbul Medeniyet University, Istanbul, Turkey. mtkalcioglu@hotmail.com.
[Ti] Título:Should Bone Cement be Used Only in Limited Ossicular Chain Defects?
[So] Source:J Int Adv Otol;13(1):149-150, 2017 Apr.
[Is] ISSN:1308-7649
[Cp] País de publicação:Turkey
[La] Idioma:eng
[Mh] Termos MeSH primário: Cimentos para Ossos/uso terapêutico
Ossículos da Orelha/lesões
Ossículos da Orelha/cirurgia
[Mh] Termos MeSH secundário: Seres Humanos
Bigorna/lesões
Bigorna/cirurgia
Procedimentos Cirúrgicos Reconstrutivos/métodos
Resultado do Tratamento
[Pt] Tipo de publicação:LETTER
[Nm] Nome de substância:
0 (Bone Cements)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170904
[Lr] Data última revisão:
170904
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170531
[St] Status:MEDLINE
[do] DOI:10.5152/iao.2017.3690


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[PMID]:28514355
[Au] Autor:Garov EV; Sidorina NG; Zagorskaya EE; Sudarev PA; Meparishvili AS
[Ad] Endereço:L.I. Sverzhevsky Research and Clinical Institute of Otorhinolaryngology, Moscow Health Department, Moscow, Russia, 117152.
[Ti] Título:[The prevalence of tympanosclerosis and the effectiveness of its surgical treatment].
[Ti] Título:Rasprostranennost' timpanoskleroza i éffektivnost' ego khirurgicheskogo lecheniia..
[So] Source:Vestn Otorinolaringol;82(2):4-10, 2017.
[Is] ISSN:0042-4668
[Cp] País de publicação:Russia (Federation)
[La] Idioma:rus
[Ab] Resumo:The objective of the present study was to characterize the epidemiological variants of tympanosclerosis and the effectiveness of the surgical treatment of the patients presenting with this condition. We have undertaken the analysis of the results of 1965 surgical interventions on the patients suffering from different forms of chronic otitis media (COM) performed during the period from 2009 till 2014 with a view to determining the frequency of tympanosclerosis (TSC). In 542 cases, it proved possible to evaluate the intraoperative findings, stages and methods of reconstructive surgery, the anatomical and functional outcomes and effectiveness of the intervention. At present, the signs of tympanosclerosis are identified in 27.6% of the patients presenting with chronic otitis media including 88.7% and 11.3% suffering from the perforating and non-perforating forms of this pathology, respectively. In 74% of the cases its manifestations are diagnosed in the patients having the tubotympanic form of COM. In 53.3% of the patients TSC foci are responsible for the fixation of the ossicular chain whereas in 46.7% of the cases the auditory ossicles retain mobility. As many as 88.6% of the patients underwent the one-step surgical intervention, 10.7% were managed using two-step surgery, and 0.7% of the patients were given the three-stage treatment. Type I tympanoplasty was performed in 62% of the patients, type III tympanoplasty in 30.4%, and various types of stapedoplasty in 4.6% of the cases. The favourable anatomical and functional outcomes at the first stage of the surgical intervention with the use of the autogenous tissues for tympano- and ossiculoplastic surgery were achieved in 87.9% of the patients on the average (by means of the closure of the tympanic defect in 92.2% and by re-fixation of the selected elements of the ossicular chain in 17.3%of the cases). The anatomical and functional effectiveness of the second-stage surgical intervention was estimated at 93.1%.
[Mh] Termos MeSH primário: Implantes Cocleares
Perda Auditiva
Miringoesclerose
Otite Média/complicações
Complicações Pós-Operatórias
Timpanoplastia
[Mh] Termos MeSH secundário: Doença Crônica
Ossículos da Orelha/patologia
Ossículos da Orelha/fisiopatologia
Ossículos da Orelha/cirurgia
Feminino
Perda Auditiva/diagnóstico
Perda Auditiva/epidemiologia
Perda Auditiva/etiologia
Testes Auditivos/métodos
Seres Humanos
Masculino
Meia-Idade
Moscou
Miringoesclerose/diagnóstico
Miringoesclerose/epidemiologia
Miringoesclerose/etiologia
Miringoesclerose/cirurgia
Otite Média/diagnóstico
Avaliação de Processos e Resultados (Cuidados de Saúde)
Complicações Pós-Operatórias/diagnóstico
Complicações Pós-Operatórias/fisiopatologia
Prevalência
Recuperação de Função Fisiológica
Timpanoplastia/efeitos adversos
Timpanoplastia/instrumentação
Timpanoplastia/métodos
Timpanoplastia/estatística & dados numéricos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1707
[Cu] Atualização por classe:170713
[Lr] Data última revisão:
170713
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170518
[St] Status:MEDLINE
[do] DOI:10.17116/otorino20178224-10


  7 / 2906 MEDLINE  
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[PMID]:28219477
[Au] Autor:Amith N; Rs M
[Ad] Endereço:Department of Otorhinolaryngology,Jawaharlal Nehru Medical College,Belagavi,India.
[Ti] Título:Autologous incus versus titanium partial ossicular replacement prosthesis in reconstruction of Austin type A ossicular defects: a prospective randomised clinical trial.
[So] Source:J Laryngol Otol;131(5):391-398, 2017 May.
[Is] ISSN:1748-5460
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:OBJECTIVE: This study aimed to compare the functional and anatomical outcomes of ossiculoplasty using an autograft incus or a titanium partial ossicular replacement prosthesis for reconstructing Austin type A ossicular defects. METHODS: Patients with Austin A ossicular defects were randomly divided into two groups: one group underwent ossiculoplasty with an autologous incus (the autologous incus group) and the other underwent ossiculoplasty with a titanium partial ossicular replacement prosthesis (the titanium prosthesis group). Otoscopic examination and audiological assessment was done pre-operatively and at 3, 6 and 12 months post-operatively. RESULTS: A post-operative average air-bone gap closure of less than 20 dB was seen in 13 patients (65 per cent) in the autologous incus group and 7 (35 per cent) in the titanium prosthesis group. There were fewer post-operative complications in the autologous incus group (20 per cent) than in the titanium prosthesis group (45 per cent). CONCLUSION: Hearing outcomes and graft take up after ossiculoplasty were significantly better when an autologous incus rather than a titanium partial ossicular replacement prosthesis was used to reconstruct Austin type A ossicular defects. The major disadvantages of the titanium prosthesis were unpredictable results and more post-operative complications.
[Mh] Termos MeSH primário: Ossículos da Orelha/anormalidades
Ossículos da Orelha/cirurgia
Bigorna/transplante
Prótese Ossicular
Substituição Ossicular/métodos
Timpanoplastia/métodos
[Mh] Termos MeSH secundário: Adolescente
Adulto
Audiometria
Criança
Feminino
Audição
Perda Auditiva Condutiva/congênito
Perda Auditiva Condutiva/cirurgia
Seres Humanos
Masculino
Meia-Idade
Prótese Ossicular/efeitos adversos
Estudos Prospectivos
Procedimentos Cirúrgicos Reconstrutivos/métodos
Titânio
Resultado do Tratamento
Adulto Jovem
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE; RANDOMIZED CONTROLLED TRIAL
[Nm] Nome de substância:
D1JT611TNE (Titanium)
[Em] Mês de entrada:1704
[Cu] Atualização por classe:170412
[Lr] Data última revisão:
170412
[Sb] Subgrupo de revista:AIM; IM
[Da] Data de entrada para processamento:170222
[St] Status:MEDLINE
[do] DOI:10.1017/S0022215117000251


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[PMID]:28189837
[Au] Autor:Greene NT; Jenkins HA; Tollin DJ; Easter JR
[Ad] Endereço:Department of Physiology and Biophysics, University of Colorado School of Medicine, Aurora, CO, USA; Department of Otolaryngology, University of Colorado School of Medicine, Aurora, CO, USA. Electronic address: nathaniel.greene@ucdenver.edu.
[Ti] Título:Stapes displacement and intracochlear pressure in response to very high level, low frequency sounds.
[So] Source:Hear Res;348:16-30, 2017 May.
[Is] ISSN:1878-5891
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:The stapes is held in the oval window by the stapedial annular ligament (SAL), which restricts total peak-to-peak displacement of the stapes. Previous studies have suggested that for moderate (<130 dB SPL) sound levels intracochlear pressure (P ), measured at the base of the cochlea far from the basilar membrane, increases directly proportionally with stapes displacement (D ), thus a current model of impulse noise exposure (the Auditory Hazard Assessment Algorithm for Humans, or AHAAH) predicts that peak P will vary linearly with D up to some saturation point. However, no direct tests of D , or of the relationship with P during such motion, have been performed during acoustic stimulation of the human ear. In order to examine the relationship between D and P to very high level sounds, measurements of D and P were made in cadaveric human temporal bones. Specimens were prepared by mastoidectomy and extended facial recess to expose the ossicular chain. Measurements of P were made in scala vestibuli (P ) and scala tympani (P ), along with the SPL in the external auditory canal (P ), concurrently with laser Doppler vibrometry (LDV) measurements of stapes velocity (V ). Stimuli were moderate (∼100 dB SPL) to very high level (up to ∼170 dB SPL), low frequency tones (20-2560 Hz). Both D and P increased proportionally with sound pressure level in the ear canal up to approximately ∼150 dB SPL, above which both D and P showed a distinct deviation from proportionality with P . Both D and P approached saturation: D at a value exceeding 150 µm, which is substantially higher than has been reported for small mammals, while P showed substantial frequency dependence in the saturation point. The relationship between P and D remained constant, and cochlear input impedance did not vary across the levels tested, consistent with prior measurements at lower sound levels. These results suggest that P sound pressure holds constant relationship with D , described by the cochlear input impedance, at these, but perhaps not higher, stimulation levels. Additionally, these results indicate that the AHAAH model, which was developed using results from small animals, underestimates the sound pressure levels in the cochlea in response to high level sound stimulation, and must be revised.
[Mh] Termos MeSH primário: Cóclea/fisiologia
Audição/fisiologia
Rampa do Tímpano/fisiologia
Rampa do Vestíbulo/fisiologia
Estribo/fisiologia
[Mh] Termos MeSH secundário: Estimulação Acústica
Acústica
Cadáver
Ossículos da Orelha/fisiologia
Orelha Média/fisiologia
Impedância Elétrica
Seres Humanos
Lasers
Prótese Ossicular
Pressão
Modelos de Riscos Proporcionais
Janela da Cóclea/fisiologia
Som
Estribo/anatomia & histologia
Osso Temporal/anatomia & histologia
Osso Temporal/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171024
[Lr] Data última revisão:
171024
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170213
[St] Status:MEDLINE


  9 / 2906 MEDLINE  
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[PMID]:27981350
[Au] Autor:Xie S; Wang X; Ren J; Liu W
[Ad] Endereço:Department of Otolaryngology-Head and Neck Surgery, The Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
[Ti] Título:The role of bone resorption in the etiopathogenesis of acquired middle ear cholesteatoma.
[So] Source:Eur Arch Otorhinolaryngol;274(5):2071-2078, 2017 May.
[Is] ISSN:1434-4726
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:Cholesteatoma is a destructive squamous epithelial lesion of the temporal bone which gradually expands and leads to serious complications by destruction of nearby bony structures. Erosion caused by bone resorption of the ossicular chain and bony labyrinth may result in hearing loss, vestibular dysfunction, facial paralysis, labyrinthine fistulae and intracranial complications. The exact underlying cellular and molecular mechanism of bone resorption in acquired cholesteatoma still remains unexplained. Pubmed database and China National Knowledge Infrastructure were screened for articles focusing on bone resorption in acquired cholesteatoma. Osteoclast activation, pressure necrosis, acid lysis, enzyme mediation, inflammatory mediators and several newly discovered biomolecules are outlined as main theories behind bone resorption in acquired cholesteatoma, aiming to facilitate the development of potential therapeutic targets for preventing intracranial and extracranial complications caused by bone resorption in acquired middle ear cholesteatoma.
[Mh] Termos MeSH primário: Reabsorção Óssea
Colesteatoma da Orelha Média
Perda Auditiva
[Mh] Termos MeSH secundário: Reabsorção Óssea/etiologia
Reabsorção Óssea/prevenção & controle
Colesteatoma da Orelha Média/complicações
Colesteatoma da Orelha Média/fisiopatologia
Ossículos da Orelha/patologia
Orelha Interna/patologia
Perda Auditiva/etiologia
Perda Auditiva/prevenção & controle
Seres Humanos
Osso Temporal/patologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; REVIEW
[Em] Mês de entrada:1705
[Cu] Atualização por classe:171117
[Lr] Data última revisão:
171117
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161217
[St] Status:MEDLINE
[do] DOI:10.1007/s00405-016-4422-6


  10 / 2906 MEDLINE  
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[PMID]:27481316
[Au] Autor:Gostian AO; Schwarz D; Pazen D; Anagiotos A; Ortmann M; Hüttenbrink KB; Beutner D
[Ad] Endereço:Medical Faculty, Department of Otorhinolaryngology-Head and Neck Surgery, University of Cologne, Cologne, Germany.
[Ti] Título:Acoustic effects of the reconstructed lateral epitympanic wall in a temporal bone and clinical study.
[So] Source:Laryngoscope;127(6):1427-1434, 2017 Jun.
[Is] ISSN:1531-4995
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:OBJECTIVE: Acoustic evaluation of reconstruction of the lateral epitympanic wall with bone or cartilage in a temporal bone study, and evaluation of audiometric data of patients who underwent cholesteatoma surgery with reconstruction of the lateral epitympanic wall with horseshoe-shaped cartilage. STUDY DESIGN: Temporal bone study and retrospective chart review. METHODS: Preparation of temporal bones included reconstruction of the epitympanic wall with fixated and loose cartilage and bone. The volume velocities of the stapes footplate were measured from the inner-ear side of the footplate by laser scanning doppler vibrometry following sound stimulation in the outer ear canal. Additionally, the audiometric data of 13 consecutive patients who underwent epitympanic cholesteatoma surgery, with an intact ossicular chain and reconstruction of the scutum with a horseshoe-shaped cartilage in contact with the malleus' neck, were evaluated retrospectively. RESULTS: The experimental results showed similar volume velocities at the stapes footplate for the fixated and unfixated cartilage as well as for the unfixated bone. However, the fixated bone yielded significantly reduced volume velocities. Clinical data confirmed that the cartilaginous horseshoe- technique allowed for a stable reconstruction of the scutum with satisfying audiometric outcome. CONCLUSION: In case of cholesteatoma surgery and the need for the reconstruction of the scutum, no adverse effects on hearing outcome are to be expected by using the malleus' neck as an anchoring point for cartilaginous scutum reconstruction. LEVEL OF EVIDENCE: NA. Laryngoscope, 127:1427-1434, 2017.
[Mh] Termos MeSH primário: Colesteatoma da Orelha Média/cirurgia
Orelha Média/cirurgia
Osso Temporal/cirurgia
Timpanoplastia/métodos
[Mh] Termos MeSH secundário: Testes de Impedância Acústica
Adolescente
Adulto
Análise de Variância
Audiometria de Tons Puros
Limiar Auditivo
Condução Óssea
Criança
Colesteatoma da Orelha Média/fisiopatologia
Meato Acústico Externo/fisiopatologia
Ossículos da Orelha/fisiopatologia
Orelha Média/fisiopatologia
Feminino
Seguimentos
Seres Humanos
Masculino
Martelo/cirurgia
Meia-Idade
Cartilagens Nasais/transplante
Estudos Retrospectivos
Estribo/fisiopatologia
Resultado do Tratamento
Membrana Timpânica/fisiopatologia
Membrana Timpânica/cirurgia
Adulto Jovem
[Pt] Tipo de publicação:CLINICAL STUDY; JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170818
[Lr] Data última revisão:
170818
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160803
[St] Status:MEDLINE
[do] DOI:10.1002/lary.26196



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