title: Neurodevelopmental Outcome of Children with Congenital Hypothyroidism Diagnosed in a National Screening Program in Turkey.
abstract: OBJECTIVE
  To study the factors affecting a neurodevelopmental status of children with congenital hypothyroidism, diagnosed on national screening program.
  
  
  METHODS
  The study was performed in the Pediatric Endocrinology Department of Dr. Behcet Uz Children's Hospital between May 2012 and May 2013. Children with congenital hypothyroidism, aged between 24 and 36 months, diagnosed by national screening program were included in the study group. Healthy subjects at the same age group consisted of the control group. For the neurodevelopmental evaluation, Bayley Scale of Infant Development- II (BSID-II) was used. Factors possibly effective on neurodevelopment were evaluated.
  
  
  RESULTS
  42 patients and 40 healthy children (mean (SD) age, 29.4 (3.7) and 29.2 (3.5), respectively were included in the study. The mean MDI score [92.6 (7.07) vs 97.1 (9.69), P=0.14)] and the mean PDI score [97.8 (15.68) vs 99.1 (10.57), P=0.66)] in the study group and control group were not significantly different. Among the patient, 4.6% and 4.7% children were moderately retarded as per the MDI scores and PPI scores, respectively. The sex, socioeconomic status, birth weight, screening levels of TSH, severity of the congenital hypothyroidism, initiation time and the dosage of thyroid hormone replacement, length of the normalization period of TSH, and adherence to treatment were not found to affect the MDI and PDI scores of the patients.
  
  
  CONCLUSIONS
  Some children with congenital hypothyrodism may have mild to moderate neurodevelopmental retardation, despite the early diagnosis and treatment, and thus need to be under regular follow-up for neurodevelopmental status.
authors.affiliation: Departments of Pediatrics and Pediatric Endocrinology, Dr. Behcet Uz Children's Hospital; and Departments of Neonatology and Pediatric Endocrinology, Dokuz Eylul University, School of Medicine Izmir, Turkey. Correspondence to: Dr Bahar Toklu Baysal, Department of Pediatrics, Dr. Behcet Uz Children's Hospital, Izmir, Turkey. bahartoklu@hotmail.com.
authors.forename: Bahar Toklu
authors.initials: BT
authors.lastname: Baysal
authors.forename: Bora
authors.initials: B
authors.lastname: Baysal
authors.forename: Ferah
authors.initials: F
authors.lastname: Genel
authors.forename: Baris
authors.initials: B
authors.lastname: Erdur
authors.forename: Erhan
authors.initials: E
authors.lastname: Ozbek
authors.forename: Korcan
authors.initials: K
authors.lastname: Demir
authors.forename: Behzat
authors.initials: B
authors.lastname: Ozkan
mesh_terms: D016022:Case-Control Studies; D002648:Child; D002657:Child Development; D003409:Congenital Hypothyroidism / Q000150:complications / Q000175:diagnosis / Q000453:epidemiology / Q000503:physiopathology; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D015997:Neonatal Screening; D065886:Neurodevelopmental Disorders / Q000453:epidemiology / Q000209:etiology; D011379:Prognosis; D012307:Risk Factors