title: Primary ciliary dyskinesia: age at diagnosis and symptom history.
abstract: Age at diagnosis and the symptom history of children with primary ciliary dyskinesia (PCD) are described by reviewing the case notes in the paediatric PCD clinic. Mean age at diagnosis was 4.4 y despite a history of neonatal respiratory distress in 37/55 cases, situs inversus in 38/55 cases and early onset troublesome rhinitis in 42/55.
  
  
  CONCLUSIONS
  Diagnosis of PCD is often delayed despite the presence of typical symptoms early in life. The key clinical features of unexplained neonatal respiratory distress, early onset rhinitis, situs inversus and a productive cough are highlighted, which, especially when occurring in combination, makes early referral for specific testing for PCD mandatory.
authors.affiliation: Department of Paediatric Respiratory Medicine, Royal Brompton Hospital, London, UK.
authors.forename: M E
authors.initials: ME
authors.lastname: Coren
authors.forename: M
authors.initials: M
authors.lastname: Meeks
authors.forename: I
authors.initials: I
authors.lastname: Morrison
authors.forename: R M
authors.initials: RM
authors.lastname: Buchdahl
authors.forename: A
authors.initials: A
authors.lastname: Bush
mesh_terms: D000293:Adolescent; D017677:Age Distribution; D017668:Age of Onset; D002648:Child; D002675:Child, Preschool; D002925:Ciliary Motility Disorders / Q000175:diagnosis* / Q000453:epidemiology* / Q000503:physiopathology; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D015995:Prevalence; D011379:Prognosis; D012189:Retrospective Studies; D012307:Risk Factors; D012720:Severity of Illness Index; D017678:Sex Distribution; D013997:Time Factors; D006113:United Kingdom / Q000453:epidemiology