Base de dados : MEDLINE
Pesquisa : F04.711.513.502 [Categoria DeCS]
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[PMID]:26324880
[Au] Autor:Torres R; Kazmitcheff G; Bernardeschi D; De Seta D; Bensimon JL; Ferrary E; Sterkers O; Nguyen Y
[Ad] Endereço:Unit of Otology, Auditory Implants and Skull Base Surgery, Otorhinolaryngology Department, Pitié-Salpêtrière Hospital, AP-HP, Bâtiment Castaigne, 47-83 boulevard de l'Hôpital, 75651, Paris Cedex 13, France.
[Ti] Título:Variability of the mental representation of the cochlear anatomy during cochlear implantation.
[So] Source:Eur Arch Otorhinolaryngol;273(8):2009-18, 2016 Aug.
[Is] ISSN:1434-4726
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:The aim of this study was to assess the mental representation of the insertion axis of surgeons with different degrees of experience, and reproducibility of the insertion axis in repeated measures. A mastoidectomy and a posterior tympanotomy were prepared in five different artificial temporal bones. A cone-beam CT was performed for each temporal bone and the data were registered on a magnetic navigation system. In these five temporal bones, 16 surgeons (3 experts; >50 cochlear implant surgery/year; 7 fellows with few cochlear implant experience, and 6 residents) were asked to determine the optimal insertion axis according to their mental representation. Compared to a planned ideal axis, the insertion axis was better determined by the experts with higher accuracy (axial: 7° ± 1.5°, coronal: 6° ± 1.5°) than fellows (axial: 14° ± 1.7°, coronal: 13° ± 1.7°; p < 0.05), or residents (axial: 15° ± 1.5°; p < 0.001, coronal: 17° ± 1.9°; p < 0.001). This study suggests that mental representation of the cochlea is experience-dependent. A high variation of the insertion axis to the scala tympani can be observed due to the complexity of the temporal bone anatomy and lack of landmarks to determine scala tympani orientation. Navigation systems can be used to evaluate and improve mental representation of the insertion axis to the scala tympani for cochlear implant surgery.
[Mh] Termos MeSH primário: Competência Clínica/normas
Implante Coclear
Cirurgiões
Cirurgia Assistida por Computador
[Mh] Termos MeSH secundário: Cóclea/diagnóstico por imagem
Cóclea/cirurgia
Implante Coclear/métodos
Implante Coclear/psicologia
Tomografia Computadorizada de Feixe Cônico/métodos
Precisão da Medição Dimensional
Seres Humanos
Processo Mastoide/diagnóstico por imagem
Processo Mastoide/cirurgia
Testes de Navegação Mental
Reprodutibilidade dos Testes
Cirurgiões/psicologia
Cirurgiões/normas
Cirurgia Assistida por Computador/métodos
Cirurgia Assistida por Computador/normas
Osso Temporal/diagnóstico por imagem
Osso Temporal/cirurgia
[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:150902
[St] Status:MEDLINE
[do] DOI:10.1007/s00405-015-3763-x


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[PMID]:25345967
[Au] Autor:Oudman E; Van der Stigchel S; Nijboer TC; Wijnia JW; Seekles ML; Postma A
[Ad] Endereço:Department of Experimental Psychology, Helmholtz Institute, Utrecht University, The Netherlands.
[Ti] Título:Route learning in Korsakoff's syndrome: Residual acquisition of spatial memory despite profound amnesia.
[So] Source:J Neuropsychol;10(1):90-103, 2016 Mar.
[Is] ISSN:1748-6653
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Korsakoff's syndrome (KS) is characterized by explicit amnesia, but relatively spared implicit memory. The aim of this study was to assess to what extent KS patients can acquire spatial information while performing a spatial navigation task. Furthermore, we examined whether residual spatial acquisition in KS was based on automatic or effortful coding processes. Therefore, 20 KS patients and 20 matched healthy controls performed six tasks on spatial navigation after they navigated through a residential area. Ten participants per group were instructed to pay close attention (intentional condition), while 10 received mock instructions (incidental condition). KS patients showed hampered performance on a majority of tasks, yet their performance was superior to chance level on a route time and distance estimation tasks, a map drawing task and a route walking task. Performance was relatively spared on the route distance estimation task, but there were large variations between participants. Acquisition in KS was automatic rather than effortful, since no significant differences were obtained between the intentional and incidental condition on any task, whereas for the healthy controls, the intention to learn was beneficial for the map drawing task and the route walking task. The results of this study suggest that KS patients are still able to acquire spatial information during navigation on multiple domains despite the presence of the explicit amnesia. Residual acquisition is most likely based on automatic coding processes.
[Mh] Termos MeSH primário: Amnésia/complicações
Amnésia/psicologia
Síndrome de Korsakoff/complicações
Síndrome de Korsakoff/psicologia
Aprendizagem
Memória Espacial
[Mh] Termos MeSH secundário: Atenção
Estudos de Casos e Controles
Feminino
Seres Humanos
Masculino
Testes de Navegação Mental
Meia-Idade
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1612
[Cu] Atualização por classe:161230
[Lr] Data última revisão:
161230
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:141028
[St] Status:MEDLINE
[do] DOI:10.1111/jnp.12058



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