title: Vitamin D deficiency rickets in infants presenting with hypocalcaemic convulsions.
abstract: OBJECTIVE
  Hypocalcaemia evaluation of the clinical, biochemical and radiologicalfeatures of 91 infants with rickets who presented as hypocalcaemic convulsions.
  
  
  METHODS
  Ninety-one hypocalcaemic infants who were brought to hospital with convulsion and diag-nosed with rickets related to vitamin D deficiency according to their clinical, biochemical and radio-logicalfeatures were retrospectively reviewed.
  
  
  RESULTS
  Mean values of the laboratory data were as follows: calcium 5.55 +/- 0.79 mg/dL, phosphorus 4.77 +/- 1.66 mg/dL, alkaline phosphatase 1525.5 +/- 925.4 U/L and parathormone 256.8 +/- 158.3 pg/mL. Serum 25-OH vitamin D levels were below normal (< 20 ng/mL) in 37 infants.
  
  
  CONCLUSIONS
  Vitamin D deficiency should be considered in infants presenting with hypocalcaemia. To avoid complications such as convulsions, clinicians should give vitamin D supplementation to such infants.
authors.affiliation: Department of Pediatric Endocrinology, Yiiziincii Yil University, Faculty of Medicine, Van, Turkey.
authors.forename: Y
authors.initials: Y
authors.lastname: Cesur
authors.affiliation: Department of Pediatric Endocrinology, Yiiziincii Yil University, Faculty of Medicine, Van, Turkey.
authors.forename: S A
authors.initials: SA
authors.lastname: Yuca
authors.affiliation: Department of Pediatric Endocrinology, Yiiziincii Yil University, Faculty of Medicine, Van, Turkey.
authors.forename: A
authors.initials: A
authors.lastname: Kaya
authors.affiliation: Department of Pediatric Neurology, Yiiziincii Yil University, Faculty of Medicine, Van, Turkey.
authors.forename: C
authors.initials: C
authors.lastname: Yilmaz
authors.affiliation: Department of Pediatrics, Yiiziincii Yil University, Faculty of Medicine, Van, Turkey.
authors.forename: A
authors.initials: A
authors.lastname: Bay
mesh_terms: D000469:Alkaline Phosphatase / Q000097:blood; D002118:Calcium / Q000097:blood; D002675:Child, Preschool; D005260:Female; D006801:Humans; D006996:Hypocalcemia / Q000097:blood / Q000209:etiology*; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D010281:Parathyroid Hormone / Q000097:blood; D010758:Phosphorus / Q000097:blood; D012189:Retrospective Studies; D012279:Rickets / Q000097:blood / Q000150:complications*; D012640:Seizures / Q000097:blood / Q000209:etiology*; D014807:Vitamin D / Q000031:analogs & derivatives / Q000097:blood; D014808:Vitamin D Deficiency / Q000097:blood / Q000150:complications
chemical_list: D010281:Parathyroid Hormone; D014807:Vitamin D; D010758:Phosphorus; C104450:25-hydroxyvitamin D; D000469:Alkaline Phosphatase; D002118:Calcium