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Query: UMLS:C0240066 (iron deficiency)
 7,156 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Erythrocyte mean corpuscular volume and mean corpuscular hemoglobin levels were higher in children with Down syndrome than in normal control subjects. Reference values for mean corpuscular volume and mean corpuscular hemoglobin level derived from normal populations may be inappropriate for children with Down syndrome. These findings may have important implications for the diagnosis of iron deficiency in these children.
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PMID:Erythrocyte macrocytosis in infants and children with Down syndrome. 140 93

Stroke affects up to 13 of 100,000 children, is more common in boys and African Americans, and is associated with considerable cognitive and psychiatric morbidity, as well as motor disability. Around half are hemorrhagic and half are ischemic. Underlying conditions include sickle cell disease, cardiac abnormalities, chromosomal abnormalities (eg, Down syndrome), and neurocutaneous conditions (eg, neurofibromatosis), but up to half the patients with ischemic stroke have no previously diagnosed condition. Although there is almost certainly an important genetic component to stroke risk, head trauma, infections, drugs and radiation appear to play an etiological role in some patients. The majority of the patients with infarction in an arterial distribution have associated cerebrovascular disease. Vascular pathologies include carotid or vertebrobasilar dissection, intracranial vasculopathy affecting the middle and anterior cerebral arteries, which is often transient, and moyamoya. Intermediate risk factors may include hypertension, hypoxia, and poor nutrition leading, for example, to iron deficiency and hyperhomocysteinemia. Some chronic conditions may directly influence the child's behavior and stroke recurrence risk, although large cohorts and randomized controlled trials will be needed before strategies for modification can be evidence-based.
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PMID:Risk factors for arterial ischemic stroke in childhood. 1516 88

Celiac disease is an immune-mediated enteropathy affecting 0.5% to 1% of children and is induced by dietary gluten in susceptible individuals carrying the human leukocyte antigen DQ2 or DQ8 heterodimer. If serological screening is positive or if a patient displays suggestive symptoms, an endoscopic biopsy of the distal duodenum is required to confirm the diagnosis. Symptoms of celiac disease are often mild or absent. Overt malabsorption occurs in only 2% to 10% of children. Individuals with a higher risk of developing celiac disease, including first-degree relatives of affected patients and children with type I diabetes, Turner syndrome, Williams syndrome or Down syndrome, should be offered screening for celiac disease along with a discussion of the implications. If serological testing is negative, a high index of suspicion should remain if malabsorption, iron deficiency or osteopenia is present. Also, immunoglobulin A deficiency should be excluded. At-risk individuals should undergo serial serological screening. Lifelong adherence to a gluten-free diet is the only treatment. If left untreated, symptomatic children with celiac disease carry an increased risk of developing osteoporosis and have a greater lifetime risk of cancer. The long-term outcome of undiagnosed or untreated asymptomatic individuals is less clear.
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PMID:Practical considerations for the identification and follow-up of children with celiac disease. 1968 81

Background. Iron deficiency anemia impacts on cognitive development. The objective of this study was to determine the prevalence of anemia and iron deficiency in children with Down syndrome and identify risk factors for anemia. Methods. We conducted a prolective cross-sectional study of children attending a multidisciplinary Down syndrome medical center. One hundred and forty nine children with Down syndrome aged 0-20 years were enrolled in the study. Information obtained included a medical history, physical and developmental examination, nutritional assessment, and the results of blood tests. Results. Of the patients studied, 8.1% were found to have anemia. Among the 38 children who had iron studies, 50.0% had iron deficiency. In a multivariate analysis, Arab ethnicity and low weight for age were significantly associated with anemia. Gender, height, the presence of an eating disorder, and congenital heart disease were not risk factors for anemia. Conclusions. Children with Down syndrome are at risk for anemia and iron deficiency similar to the general population. Children with Down syndrome should be monitored for anemia and iron deficiency so that prompt intervention can be initiated.
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PMID:Anemia in children with down syndrome. 2194 70