title: Correlation of obstructive sleep apnoea and laryngopharyngeal reflux: phmetry study.
abstract: OBJECTIVE
  To study the correlation of obstructive sleep apnoea (OSA) and laryngopharyngeal reflux (LPR).
  
  
  METHODS
  A descriptive study.
  
  
  METHODS
  Suez Canal University Hospital, Ismailia, Egypt.
  
  
  METHODS
  62 patients with polysomnography confirmed OSA.
  
  
  METHODS
  Patients were evaluated with ambulatory 24-h double channel pH monitoring.
  
  
  RESULTS
  Mean reflux symptom index in the study group was 9 ± 5.5, and it was > 13 in all patients with severe OSA. Signs of LPR reflux were present in 34 (55%) patients. Abnormal reflux was detected in the distal oesophagus in 41 patients (66%) and in the proximal oesophagus in 21 patients (34%). Patients with severe OSA had significantly higher nocturnal LPR reflux episodes compared to patients with mild disease (P < .05). Number of reflux episodes and total duration of reflux during sleep are significantly correlated to degree of OSA (P < .05). No difference was found in relation to age or sex. Daytime reflux was not related to the degree of obstructive sleep apnoea (P > .05).
  
  
  CONCLUSIONS
  LPR is common in patients with OSA. Patients with severe OSA have significantly higher nocturnal LPR. This should be considered when treating this group of patients.
authors.affiliation: Department of Otorhinolaryngology, Faculty of medicine, Suez Canal University, Ismailia, Egypt.
authors.forename: D M
authors.initials: DM
authors.lastname: Elhennawi
authors.affiliation: Department of Otorhinolaryngology, Faculty of medicine, Suez Canal University, Ismailia, Egypt.
authors.forename: M R
authors.initials: MR
authors.lastname: Ahmed
authors.affiliation: Department of Otorhinolaryngology, Faculty of medicine, Suez Canal University, Ismailia, Egypt.
authors.forename: A S
authors.initials: AS
authors.lastname: Abou-Halawa
mesh_terms: D000328:Adult; D000368:Aged; D015331:Cohort Studies; D050782:Esophageal pH Monitoring; D005260:Female; D006801:Humans; D006863:Hydrogen-Ion Concentration; D057045:Laryngopharyngeal Reflux / Q000150:complications* / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D017286:Polysomnography; D012720:Severity of Illness Index; D020181:Sleep Apnea, Obstructive / Q000150:complications* / Q000503:physiopathology*