Absence of the abducens nerve in duane syndrome verified by magnetic resonance imaging

Parsa, Cameron F.; Grant, P. Ellen; Dillon, William P.; du, Sascha; Hoyt, William F.

doi:10.1016/s0002-9394(99)80158-5

Cited by 89 publications

(45 citation statements)

References 4 publications

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“…The study group consisted of 5 boys (62.5%) and 3 girls of mean age 8.75 ± 3.1 years at surgery (range, [4][5][6][7][8][9][10][11][12][13][14]. The left eye was affected in 6 patients (75%) and the right eye in 2 patients.…”

Section: Resultsmentioning

confidence: 99%

“…4 DRS is caused by dysinnervation of the extraocular muscles (EOMs) by branches of the oculomotor nerve. 5,6 Huber 7 classified DRS into three categories on the basis of electromyography examinations: type 1, limitation of abduction; type 2, limitation of adduction of the involved eye; and type 3, limitation of abduction and adduction of the involved eye. Co-contraction of the horizontal and/or vertical rectus muscle is typical to all three types.…”

Section: Introductionmentioning

confidence: 99%

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Contralateral lateral rectus muscle recession in patients with Duane retraction syndrome type 3

Snir

Dotan

Friling

et al. 2013

Eye

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Aims The aim of this study was to evaluate the motor, sensory, functional, and head posture results of recession of the lateral rectus muscle contralateral to the involved eye in patients with exotropic Duane retraction syndrome (DRS) type 3. Methods This was a retrospective, longitudinal, observational study of a consecutive clinical case series. Of the 11 patients with DRS type 3 operated on at a tertiary medical center from 1977 to 2012, 8 underwent recession of the lateral rectus muscle contralateral to the involved eye (with combined Y-splitting of ipsilateral lateral rectus muscle in 3 of them). Full ophthalmic, orthoptic, and neurological examination was performed before and after surgery. Main outcome measures included intragroup changes in motor misalignment, abnormal head turn, ocular upshoot, and stereopsis. Results Mean patient age was 8.75 ± 3.1 years at surgery. Mean exodeviation for distance was À 17.3±3.5 prism diopters (PD) preoperatively and À 4.0±6.1 PD postoperatively; corresponding values for near were À 23.1 ± 7.2 PD and À 5.9 ± 8.7 PD. Motor deviation improved by 77% for distance (P ¼ 0.017) and 74.5% for near (P ¼ 0.01). In 7/8 patients, the postoperative residual exodeviation (distance and near) was o8.0 PD. There was an 80% improvement in head turn, from 15.3±41 before surgery to 3.1 ± 5.01 after (P ¼ 0.01). Stereopsis improved significantly in 6/8 patients. Findings remained stable during follow-up (mean duration 35.9 ± 50.8 months, range 5-132 months). Conclusions Contralateral lateral rectus muscle recession appears to be a promising technique for the treatment of moderate unilateral DRS type 3, with patients showing significant motor and functional improvement and a decrease in head turn.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Contralateral lateral rectus muscle recession in patients with Duane retraction syndrome type 3

Snir

Dotan

Friling

et al. 2013

Eye

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“…14,20 Recent advances in the imaging technology have made it easier to detect such subtle anatomical changes. 21 Figure 1 A mother and two children with CFEOM. This condition is usually sporadic and inherited in an autosomal dominant manner.…”

Section: Congenital Extra-ocular Muscles Disorderscongenital Fibrosismentioning

confidence: 99%

Congenital innervation dysgenesis syndrome (CID)/congenital cranial dysinnervation disorders (CCDDs)

Assaf

2011

Eye

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“…Elektromyografide abdük-siyonda lateral rektus innervasyonunda azalma ve addüksiyonda paradoks artma gözlenmektedir. [2][3][4] Duane tarafından 1905 yılında tarif edilen ve bugün kendi adıyla anılan sendrom aradan geçen bunca yıla ve eklenen literatüre rağmen ilk tarif edildiği şekilde kabul edilmektedir. Orijinal makalede sınıflandırma olmamasına rağmen sendromun üç tipi tarif edilmiştir.…”

Section: Gereç Ve Yöntemunclassified

Duane retraction syndrome: Clinical features and differential diagnosis

Okumuş¹

2011

Dicle Med J

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Objective: To determine the clinical properties of Duane's Retraction Syndrome (DRS) cases in our clinic, to emphasize the importance of differential diagnosis in these patients. Materials and methods:Gender distribution, laterality, type of the syndrome, amblyopia, and accompanying ocular and non-ocular abnormalities of the 32 cases that were diagnosed as Duane's retraction syndrome were retrospectively investigated.Results: Thirty-two cases with average age of 7.40±3.34 were followed for 14±5.20 months at average. Twenty (62.5%) of the 32 cases of were female and 12 were male (37.5%). Twenty-seven of the cases (84.7%) were type-I, 4 was type-II (12.5%), and 1 was type-III (3.12%) DRS. Twenty-five (78.1%) of the cases had one eye involvement and 7 (21.9%) had two eyes involvement. Left eye involvement among cases with one eye DRS were higher (56.2%). In type-I DRS cases the rates of exotropia, amblyopia, up-shoot and down-shoot, and abnormal head posture were as follows 43.75%, 28%, 34.37%, 37.20%, respectively. Patients who were applied Magnetic Resonance Imaging techniques had no abnormality about intracranial structure. Five among type-I DRS cases who had serious abnormal head posture had medial rectus recession operation. Conclusion:The majority of Duane retraction syndrome cases were constituted of Type I cases. It was observed that the syndrome was more frequent in women and left eye was more affected. While visual acuity was observed as normal in majority of cases, in some cases exotropia, amblyopia, and abnormal head posture were present. Significant improvements were observed in terms of slippage angles and head postures of 5 cases with type 1 DRS after surgery.Key words: Duane retraction syndrome, abnormal head posture, magnetic resonanceimaging. Sonuç: Duane retraksiyon sendromlu olguların çoğun-luğunu Tip 1 DRS'li olgular oluşturmaktaydı. Sendromun kadınlarda daha çok görüldüğü ve sol gözü daha fazla etkilediği izlendi. Olguların büyük çoğunluğunda görme keskinliği normal izlenirken, bazı olgularda ezotropya, ambliyopi, anormal baş pozisyonu mevcuttu. Kayması ve anormal baş pozisyonu mevcut olan 5 tip 1 DRS'li olgunun ameliyat sonrası kayma açıları ve baş pozisyonların-da belirgin düzelme izlendi.Anahtar kelimeler: Duane retraksiyon sendromu, anormal baş pozisyonu, manyetik rezonans görüntüleme.

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Absence of the abducens nerve in duane syndrome verified by magnetic resonance imaging

Cited by 89 publications

References 4 publications

Contralateral lateral rectus muscle recession in patients with Duane retraction syndrome type 3

Contralateral lateral rectus muscle recession in patients with Duane retraction syndrome type 3

Congenital innervation dysgenesis syndrome (CID)/congenital cranial dysinnervation disorders (CCDDs)

Duane retraction syndrome: Clinical features and differential diagnosis

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