Muscle & nerve · 2019
Clinical and genetic characteristics of childhood-onset myotonic dystrophy.
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Stokes Mathew, Varughese Natasha, Iannaccone Susan, Castro Diana
Аннотация
INTRODUCTION: Myotonic dystrophy type 1 (DM1) is caused by a CTG (cytosine-thymine-guanine) trinucleotide repeat expansion. Congenital DM (CDM) presents in the first month of life, whereas individuals with infantile and juvenile DM1 have later onset of symptoms.
METHODS: We performed a retrospective chart review of patients with childhood-onset DM1 seen at one of three locations in Dallas, Texas between 1990 and 2018. Symptoms, disease course, cognitive features, and family history were reviewed.
RESULTS: Seventy-four patients were included; CDM was diagnosed in 52 patients. There was maternal inheritance in 74% of patients. CTG repeat number ranged from 143 to 2300. Neuropsychiatric and cognitive deficits were common. Over half of the patients had GI disturbances, and orthopedic complications were common.
DISCUSSION: Myotonic dystrophy type 1 in children requires a multidisciplinary approach to management. Presenting symptoms vary, and repeat expansion size does not necessarily directly relate to severity of symptoms. A consensus for outcome measures is required.
METHODS: We performed a retrospective chart review of patients with childhood-onset DM1 seen at one of three locations in Dallas, Texas between 1990 and 2018. Symptoms, disease course, cognitive features, and family history were reviewed.
RESULTS: Seventy-four patients were included; CDM was diagnosed in 52 patients. There was maternal inheritance in 74% of patients. CTG repeat number ranged from 143 to 2300. Neuropsychiatric and cognitive deficits were common. Over half of the patients had GI disturbances, and orthopedic complications were common.
DISCUSSION: Myotonic dystrophy type 1 in children requires a multidisciplinary approach to management. Presenting symptoms vary, and repeat expansion size does not necessarily directly relate to severity of symptoms. A consensus for outcome measures is required.
Предметные рубрики MeSH
AsthmaAttention Deficit Disorder with HyperactivityCardiac Conduction System DiseaseChildChild, PreschoolCognitive DysfunctionConstipationDeglutition DisordersDevelopmental DisabilitiesFemaleGastroesophageal RefluxHumansInfantInfant, NewbornMaleMaternal InheritanceMitral Valve InsufficiencyMood DisordersMyotonic DystrophyMyotonin-Protein KinaseRetrospective StudiesTrinucleotide Repeat Expansion