title: Silent aspiration in Parkinson's disease patients with diurnal sialorrhea.
abstract: OBJECTIVE
  We studied the frequency of silent laryngeal penetration or silent aspiration (SLP/SA) in Parkinson's disease (PD) patients with diurnal sialorrhea.
  
  
  METHODS
  In 19 consecutive PD patients with diurnal sialorrhea, swallow was evaluated using the videofluoroscopy analysis. Data were analysed to determine the frequency of aspiration and its relationship with the severity of sialorrhea.
  
  
  RESULTS
  All patients were classified in the Hoehn and Yahr stages between 2 and 5. SLP/SA was observed in 21% of patients and the score of sialorrhea in the group with SLP/SA was 8.0+/-0.81, while in the group with no SLP/SA was 6.46+/-1.06 (p=0.02).
  
  
  CONCLUSIONS
  SLP/SA is a frequent morbidity in PD patients, its risk is higher in later stages of disease and in those patients with severe sialorrhea. However, prospective and controlled studies of follow up will be necessary to determine the prognosis and management in this group of patients.
authors.affiliation: Division of Neurology and Epidemiology, Federal University of Bahia, Brazil.
authors.forename: Ana Caline
authors.initials: AC
authors.lastname: Nóbrega
authors.forename: Bernardo
authors.initials: B
authors.lastname: Rodrigues
authors.forename: Ailton
authors.initials: A
authors.lastname: Melo
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D002940:Circadian Rhythm; D015331:Cohort Studies; D003679:Deglutition / Q000502:physiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010300:Parkinson Disease / Q000150:complications* / Q000503:physiopathology; D053120:Respiratory Aspiration / Q000453:epidemiology* / Q000503:physiopathology; D012307:Risk Factors; D012720:Severity of Illness Index; D012798:Sialorrhea / Q000150:complications* / Q000503:physiopathology