Duane Retraction Syndrome, Egyptian Study

Shawky, Dalal; Gaballah, Karim; Basha, Maha El

doi:10.15406/aovs.2015.03.00089

Cited by 1 publication

(3 citation statements)

References 14 publications

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“…In our study, bilateral cases of Duane's retraction syndrome comprised 10% in mixed race children, 21% in black children, and 25% in white children. The mixed race findings are in keeping with the 12% bilaterally in India reported by Mohan et al 14 and Kekunnaya et al, 16 as well as the 14% reported by Khan et al 12 in Saudi Arabia and Shawky et al 17 in Egypt. The 21% prevalence of bilateral cases in our black population is in keeping with the findings of Young, 6 in which a higher incidence of bilateral cases (33%) was present among black South Africans.…”

Section: Discussionsupporting

confidence: 87%

“…These studies are summarized in Table A (available in the online version of this article). 3,6,[10][11][12][13][14][15][16][17][18][19] The results from our cohort corroborate findings from a previous study of black South African children with a male preponderance for Duane's re-traction syndrome. 6 Young 6 primarily researched the Zulu ethnic group.…”

Section: Discussionsupporting

confidence: 84%

“…All other reports show a female predominance ranging from 55% to 63%. [12][13][14][15][16][17][18][19] In most reports, type 1 is the most common, followed by type 3 and then type 2. [2][3][4] In our series, type 1 was the most common (62%), but there were more patients with type 2 (23%) than type 3 (15%).…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Duane's Retraction Syndrome in a Cohort of South African Children: A 20-Year Clinic-Based Review

Steyn¹,

Grötte²,

Tinley³

2019

J Pediatr Ophthalmol Strabismus

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OBJECTIVES:To describe the clinical features of Duane's retraction syndrome in a cohort of South African children and analyse subtypes for ethnic differences. METHODS:Retrospective case series of 120 patients seen in the period from 1997 to 2017 at the Red Cross War Memorial Children's Hospital. RESULTS:Of the 120 patients, Type 1 was present in 76 (64%) of cases, with Type 2 in 27 (23%) and Type 3 in 16 (13%).Type 2 was most common in black children (54%), while Type 1 predominated in mixed race (68%) and white children (94%). A female predominance was seen in white children (69%) and mixed race children (59%), while there was a male predominance amongst black children (62.5%) Left involvement was the most common (44%), followed by right (41%) and bilateral involvement (14%).The average age of presentation was 2,85 years. A positive family history of squints or Duane's was present in 6 (0,5%). Congenital systemic abnormalities were present in 12 (1%) and congenital ocular abnormalities in 2 (0.4%). Squint in primary position was present in 57 (46%), of which 39% had esotropia and 61% exotropia. Squint was more common in black children (71%) than in mixed race (39.4%) and white children (41%). An abnormal head position was present in 59 (50%) and was most common in Type 2 (67%). Up and downshoots were seen in 58 (48.3%). Ametropia was found in 94 (79%), and of these 88 (93,6%) were hyperopic and 6 (6.4%) myopic. Amblyopia was present in 15 (12.5%). Surgery was performed in 41(34%). CONCLUSION:This study is the first to provide robust data on the profile of paediatric DRS in the 3 main South African ethnic groups, and shows clear ethnic differences in DRS. In black patients, males are more often affected, the proportion with Type 2 DRS is more frequent, and surgery is required more often. Further population-based studies on the epidemiology of DRS in children are needed to clarify the role of race as a potential risk factor.

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