title: Potocki-Lupski syndrome: a microduplication syndrome associated with oropharyngeal dysphagia and failure to thrive.
abstract: OBJECTIVE
  Failure to thrive (FTT) is a feature of children with Potocki-Lupski syndrome (PTLS) [duplication 17p11.2]. This study was designed to describe the growth characteristics of 24 subjects with PTLS from birth through age 5 years in conjunction with relevant physical features and swallow function studies.
  
  
  METHODS
  We evaluated 24 individuals with PTLS who were ascertained by chromosome analysis and/or array comparative genome hybridization. Clinical assessments included review of medical records, physical examination, otolaryngological examination, and swallow function studies. Measures of height and weight were converted to Z-scores.
  
  
  RESULTS
  The mean weight-for-age and weight-for-length Z-scores at birth were lower (P < .01) than the reference standard and did not change with age. A history of poor feeding, hypotonia, and FTT were reported in 92%, 88%, and 71%, respectively. Individuals with hypotonia had lower weight-for-age and body mass index-for-age Z-scores (P = .01). Swallow function studies demonstrated at least one abnormality in all subjects.
  
  
  CONCLUSIONS
  FTT is common in children with PTLS. We hypothesize that oropharyngeal dysphagia and hypotonia likely contribute to FTT in patients with PTLS and recommend that once a diagnosis is established, the individual be assessed for feeding and growth issues and be availed of oromotor therapy and nutritional services.
authors.affiliation: Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA.
authors.forename: Claudia
authors.initials: C
authors.lastname: Soler-Alfonso
authors.forename: Kathleen J
authors.initials: KJ
authors.lastname: Motil
authors.forename: Catherine L
authors.initials: CL
authors.lastname: Turk
authors.forename: Patricia
authors.initials: P
authors.lastname: Robbins-Furman
authors.forename: Ellen M
authors.initials: EM
authors.lastname: Friedman
authors.forename: Feng
authors.initials: F
authors.lastname: Zhang
authors.forename: James R
authors.initials: JR
authors.lastname: Lupski
authors.forename: J Kennard
authors.initials: JK
authors.lastname: Fraley
authors.forename: Lorraine
authors.initials: L
authors.lastname: Potocki
mesh_terms: D000015:Abnormalities, Multiple; D002675:Child, Preschool; D025063:Chromosome Disorders; D058674:Chromosome Duplication; D055028:Comparative Genomic Hybridization; D003680:Deglutition Disorders / Q000209:etiology*; D004750:Enteral Nutrition; D005183:Failure to Thrive / Q000209:etiology*; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D058496:Smith-Magenis Syndrome / Q000150:complications / Q000175:diagnosis / Q000235:genetics / Q000628:therapy