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Brown syndrome: clinical features and results of superior oblique tenotomy / Síndrome de Brown: quadro clínico e resultados da tenectomia do oblíquo superior
Ozsoy, Ercan; Gunduz, Abuzer; Firat, Ilknur Tuncer; Firat, Murat.
Affiliation
  • Ozsoy, Ercan; University of Health Sciences. Haseki Training and Research Hospital. Department of Ophthalmology. Istanbul. TR
  • Gunduz, Abuzer; Inonu University School of Medicine. Department of Ophthalmology. Malatya. TR
  • Firat, Ilknur Tuncer; Inonu University School of Medicine. Department of Ophthalmology. Malatya. TR
  • Firat, Murat; Malatya Training and Research Hospital. Department of Ophthalmology. Malatya. TR
Arq. bras. oftalmol ; Arq. bras. oftalmol;84(2): 133-139, Mar,-Apr. 2021. tab, graf
Article in En | LILACS | ID: biblio-1153127
Responsible library: BR1.1
ABSTRACT
ABSTRACT

Purpose:

This study was conducted to further define the specific clinical characteristics of patients with Brown syndrome and evaluate the outcomes of superior oblique tenotomy in its surgical management.

Methods:

A retrospective analysis of the medical charts of 45 patients with Brown syndrome was performed, which revealed that 11 patients underwent superior oblique tenotomy due to abnormal head posture and/or hypotropia and 1 patient underwent bilateral superior oblique tendon elongation with a silicone band due to abnormal head posture. In the last patient, silicone bands were removed at the postoperative 3rd month due to the lack of improvement in the abnormal head posture and the limitation of elevation in adduction. Simultaneous horizontal rectus muscle surgery was performed in four patients.

Results:

There was a predominance of female gender, right eye, congenital form, unilaterality, A-pattern, and an abnormal head posture type with a combination of chin up and head tilting. Bilateral form was observed only in female patients. Amblyopia was detected in two patients. Among patients aged >5 years, 40% had reduced stereopsis. Abnormal head posture was found in 60% of patients. More than half of them were diagnosed with a vertical and/or horizontal deviation. Tenotomy procedure eliminated the abnormal head posture in all patients and significantly improved the mean limitation of elevation in adduction and hypotropia (p=0.001, p=0.012). Two patients developed inferior oblique overaction in the operated eye. There was complete spontaneous resolution in two patients.

Conclusions:

The clinical features of patients with Brown syndrome in our study are considerably consistent with those of previous reports. The present study demonstrated the effectiveness of superior oblique tenotomy with less overcorrection in the surgical treatment of Brown syndrome.(AU)
RESUMO
RESUMO

Objetivo:

Definir mais detalhadamente as características clínicas específicas de pacientes com síndrome de Brown e avaliar os resultados da tenectomia do músculo oblíquo superior no manejo cirúrgico da síndrome de Brown.

Métodos:

Prontuários de 45 pacientes com síndrome de Brown foram analisados retrospectivamente. Onze pacientes submetidos à tenectomia do músculo oblíquo superior devido a postura anormal da cabeça ou a hipotropia e um paciente submetido ao alongamento bilateral do tendão do oblíquo superior com uma faixa de silicone devido a postura anormal da cabeça. Neste último paciente, a faixa de silicone foi removida no terceiro mês pós-operatório devido à ausência de melhora na postura anormal da cabeça e à limitação da elevação em adução. Quatro pacientes submeteram-se simultaneamente à cirurgia do músculo reto horizontal.

Resultados:

Houve predominância de sexo feminino, olho direito, forma congênita, acometimento unilateral, padrão em "A" e um tipo de postura anormal da cabeça combinando queixo elevado e inclinação da cabeça. A forma bilateral foi vista apenas em pacientes do sexo feminino. Foi constatada ambliopia em 2 pacientes. Dentre os pacientes acima de 5 anos de idade, 40% tinham estereopsia reduzida. Postura anormal da cabeça estava presente em 60% dos pacientes. Mais da metade dos pacientes foi diagnosticada com um desvio vertical, horizontal ou ambos. O procedimento de tenectomia eliminou a postura anormal da cabeça em todos os pacientes e melhorou significativamente a limitação média da elevação em adução e a hipotropia (p=0,001 e p=0,012). Dois pacientes desenvolveram hiperação do músculo oblíquo inferior no olho operado. Resolução completa ocorreu espontaneamente em 2 pacientes.

Conclusões:

O quadro clínico dos pacientes com síndrome de Brown no nosso estudo é bastante consistente com os relatos iniciais na literatura. Este estudo mostrou a eficácia da tenectomia do oblíquo superior, com menor hipercorreção no tratamento cirúrgico da síndrome de Brown.(AU)
Subject(s)
Key words

Full text: 1 Index: LILACS Main subject: Tendons / Ocular Motility Disorders Type of study: Diagnostic_studies / Observational_studies Limits: Humans Language: En Journal: Arq. bras. oftalmol Journal subject: OFTALMOLOGIA Year: 2021 Type: Article

Full text: 1 Index: LILACS Main subject: Tendons / Ocular Motility Disorders Type of study: Diagnostic_studies / Observational_studies Limits: Humans Language: En Journal: Arq. bras. oftalmol Journal subject: OFTALMOLOGIA Year: 2021 Type: Article