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30 Possible Causes for Intellectual Disability and/or Hydrocephalus (50, )

  • Meningitis

    Neurologic sequelae (eg, hydrocephalus, hearing loss, intellectual disability ) develop in 20 to 50% of infants who survive, with a poorer prognosis when gram-negative enteric[msdmanuals.com]

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  • Hydrocephalus

    Untreated hydrocephalus has a 50-60% death rate, with the survivors having varying degrees of intellectual, physical, and neurological disabilities.[web.archive.org] Prognosis Untreated hydrocephalus has a survival rate of 40 – 50%, with the survivors having varying degrees of intellectual, physical, and neurological disabilities.[encyclopedia.com] The outlook for treated hydrocephalus depends on the cause. Hydrocephalus that is caused by disorders not associated with infection has the best outlook.[web.archive.org]

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  • Neonatal Meningitis

    Neurologic sequelae (eg, hydrocephalus , hearing loss , intellectual disability ) develop in 20 to 50% of infants who survive, with a poorer prognosis when gram-negative enteric[merckmanuals.com]

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  • Obstructive Hydrocephalus

    Prognosis Untreated hydrocephalus has a survival rate of 40 – 50%, with the survivors having varying degrees of intellectual, physical, and neurological disabilities.[encyclopedia.com] Prognosis for treated hydrocephalus varies, depending on the cause. If the child survives for one year, more than 80% will have a fairly normal lifespan.[encyclopedia.com]

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  • Communicating Hydrocephalus

    Prognosis Untreated hydrocephalus has a survival rate of 40 – 50%, with the survivors having varying degrees of intellectual, physical, and neurological disabilities.[encyclopedia.com] Prognosis for treated hydrocephalus varies, depending on the cause. If the child survives for one year, more than 80% will have a fairly normal lifespan.[encyclopedia.com]

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  • Mowat-Wilson Syndrome

    Intellectual disability is universally present in patients with Mowat-Wilson syndrome with a large number of individuals having impaired verbal language skills.[symptoma.com] Other less frequent findings include hippocampal dysgenesis, cerebral atrophy, and external hydrocephalus with ventriculomegaly.[symptoma.com] […] nervous system manifestations of Mowat-Wilson syndrome are focal/absence seizures (seen in 70-75% of patients) and agenesis of the corpus callosum (seen in approximately 50%[symptoma.com]

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  • Craniosynostosis-Dandy-Walker Malformation-Hydrocephalus Syndrome

    Macrocephaly Common - Between 50% and 80% cases Intellectual disability Common - Between 50% and 80% cases Downslanted palpebral fissures Common - Between 50% and 80% cases[mendelian.co] […] and Dandy-Walker malformation. may also develop some of the following symptoms: Uncommon Symptoms - Between 30% and 50% cases Elevated serum creatine phosphokinase Intellectual[mendelian.co] […] and Joint hypermobility Symptoms // Phenotype % cases Autosomal dominant inheritance Common - Between 50% and 80% cases Ventriculomegaly Common - Between 50% and 80% cases[mendelian.co]

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  • Congenital Communicating Hydrocephalus

    ; intellectual disability is severe.[ispn.guide] Prognosis Untreated hydrocephalus has a survival rate of 40 – 50%, with the survivors having varying degrees of intellectual, physical, and neurological disabilities.[encyclopedia.com] In less severely affected males, hydrocephalus may be subclinically present and documented only because of developmental delay; intellectual disability ranges from mild ([ispn.guide]

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  • Adactyly of Foot

    […] and Short foot Symptoms // Phenotype % cases Intellectual disability Very Common - Between 80% and 100% cases Hypertelorism Common - Between 50% and 80% cases Seizures Common[mendelian.co] Generalized hypotonia SOURCES: GARD UMLS ORPHANET MONDO SCTID DOID OMIM NCIT MESH More info about CHROMOSOME 1p36 DELETION SYNDROME Top 5 symptoms//phenotypes associated to Hydrocephalus[mendelian.co]

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  • Apert Syndrome

    Moderate to severe intellectual disability and variable developmental delay are also common in AS (more than 50% of cases).[orpha.net] Some patients are also reported to have agenesis of the corpus callosum, ventriculomegaly, hydrocephalus, fused cervical vertebrae (usually C5-C6), and occasionally, cardiac[orpha.net]

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Further symptoms