title: A rare case of Kearns-Sayre syndrome in a 17-year-old Venezuelan male with bilateral ptosis as the initial presentation.
abstract: Kearns-Sayre syndrome (KSS) was first described in 1958 as 'a rare neuromuscular disorder defined by a characteristic triad of progressive external ophthalmoplegia, pigmentary retinopathy, atrioventricular block and cerebellar ataxia'. The prevalence rate of KSS is ∼1-3 per 100 000 individuals. Here, we report a rare case of a 17-year-old Venezuelan male with KSS.
authors.affiliation: Universidad del Zulia Facultad de Medicina , Maracaibo, Zulia , Venezuela.
authors.forename: Mayela
authors.initials: M
authors.lastname: Leal
authors.affiliation: N.K.P. Salve Institute of Medical Sciences and Research Center , Nagpur , India.
authors.forename: Chetan
authors.initials: C
authors.lastname: Dhoble
authors.affiliation: Universidad del Zulia Facultad de Medicina , Maracaibo, Zulia , Venezuela.
authors.forename: Julie
authors.initials: J
authors.lastname: Lee
authors.affiliation: Universidad del Zulia Facultad de Medicina , Maracaibo, Zulia , Venezuela.
authors.forename: Deinymar
authors.initials: D
authors.lastname: Lopez
authors.affiliation: Universidad Anahuac Mexico Norte , Huixquilucan , Mexico.
authors.forename: Laura Simonne
authors.initials: LS
authors.lastname: Menéndez