title: Correlations between Apnea/Hypopnea Index and selected morphological and clinical parameters in patients with unilateral or bilateral impairment of nasal patency.
abstract: BACKGROUND
  The aim of this work was to evaluate the correlation between Apnea/Hypopnea Index (AHI) and selected parameters of morphological and clinical character in the patients with a unilateral or bilateral impairment of nasal patency.
  
  
  METHODS
  The study covered 60 adults, including 37 male and 23 female subjects, 19-69 years of age. In the Department, these subjects were divided into 3 groups: I - 20 patients with unilateral impairment of nasal patency, II - 20 patients with bilateral impairment of nasal patency, III - controls with normal nasal patency.
  
  
  METHODS
  A subjective examination (questionnaire with a sleepiness scale), an objective examination (general examination of the neck and waist diameter, body weight, height, length of the uvula), otorhinolaryngological examination (Pirquet test of the palatine tonsils), X-ray and CT of the head and paranasal sinuses) to determine the cause and location of the obturation of air passages, physiological tests and polysomnography. The correlations between the neck circumferenceheight ratio (NHR) and AHI, waist-hip ratio (WHR) and AHI. The statistical analysis of the study results was conducted in Stata®/Special Edition Program, 14.1 version (StataCorp LP, College Station, Texas, USA).
  
  
  RESULTS
  Clinically, the study group revealed: shallow breathing in 47.5% and apnea in 52.5% of the studied patients whereas the control group did not show any sleep disorders. Statistical fluctuations between controls and the study groups were noticed (p<0.001).
  
  
  CONCLUSIONS
  By the Epworth scale, moderate and severe sleepiness was found in merely 12.5% of the patients. The differences in the length of the uvula and the size of the pharyngeal tonsils between the studied groups were not statistically significant. No statistical significance was found between NHR and AHI, BMI and AHI, WHR and AHI in the studied group.
authors.affiliation: Medical University of Lodz.
authors.forename: Joanna
authors.initials: J
authors.lastname: Michalska
authors.affiliation: Medical University of Lodz.
authors.forename: Jurek
authors.initials: J
authors.lastname: Olszewski
authors.affiliation: Medical University of Lodz.
authors.forename: Marzena
authors.initials: M
authors.lastname: Mielczarek
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009666:Nose / Q000002:abnormalities* / Q000033:anatomy & histology*; D014066:Palatine Tonsil / Q000002:abnormalities* / Q000033:anatomy & histology*; D020181:Sleep Apnea, Obstructive / Q000209:etiology*; D011795:Surveys and Questionnaires; D055815:Young Adult