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Superior Canal Dehiscence Involving the Superior Petrosal Sinus: A Novel Classification Scheme.
Otol Neurotol ; 39(9): e849-e855, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-30199501
ABSTRACT

OBJECTIVES:

To highlight superior semicircular canal dehiscence (SSCD) involving the superior petrosal sinus (SPS), and to propose a novel classification system for SPS associated SSCD with potential surgical implications. STUDY

DESIGN:

Multicenter retrospective review.

SETTING:

Three tertiary referral centers. PATIENTS All patients diagnosed with SPS associated SSCD (1/2000 to 8/2016). Radiographic findings and clinical symptoms were analyzed. INTERVENTION Surgical repair or observation. MAIN OUTCOME

MEASURE:

Radiographic findings and clinical symptoms were analyzed.

RESULTS:

Thirty-three dehiscences (30 patients) involving the SPS were identified. The average age at the time of presentation was 52.5 years (median, 56.9; range, 4.9-75.3 yr), and 53.3% of patients were men. Three patients had bilateral SPS associated SSCD. The most common associated symptoms at presentation were episodic vertigo (63.6%), subjective hearing loss (60.6%), and aural fullness (57.6%). Four distinct types of dehiscence were identified class Ia. SSCD involving a single dehiscence into an otherwise normal appearing SPS; class Ib. SSCD involving a single dehiscence into an apparent venous anomaly of the SPS; class IIa. SSCD involving two distinct dehiscences into the middle cranial fossa and the SPS; class IIb. SSCD involving a single confluent dehiscence into the middle cranial fossa and the SPS.

CONCLUSIONS:

SSCD involving the SPS represents a small but distinct subset of SSCD cases. This scenario can create a unique set of symptoms and surgical challenges when intervention is sought. Clinical findings and considerations for surgical intervention are provided to facilitate effective diagnosis and management.
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Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: MEDLINE Assunto principal: Canais Semicirculares / Cavidades Cranianas / Perda Auditiva / Doenças do Labirinto Limite: Adolescente / Adulto / Idoso / Criança / Criança, pré-escolar / Feminino / Humanos / Masculino / Meia-Idade / Jovem adulto Idioma: Inglês Revista: Otol Neurotol Assunto da revista: Neurologia / Otorrinolaringologia Ano de publicação: 2018 Tipo de documento: Artigo