title: Effect of aromatics on lung mucociliary clearance in patients with chronic airways obstruction.
abstract: BACKGROUND
  Complementary and alternative medicine have become an increasingly topical theme in respiratory medicine. Aromatics are a commonly used ingredient in a number of proprietary medicines. It is well established that lung mucus clearance is impaired in patients with chronic airways obstruction. This study investigated whether aromatics delivered by inunction could be objectively shown to enhance lung clearance.
  
  
  METHODS
  We studied 12 patients with chronic bronchitic with a mean standard error (SE) age of 67 (2) years (mean [SE] tobacco consumption history of 64 [12] pack-years). We used a randomized, single-blinded, placebo-controlled crossover trial within patient design assessing the effect of 7.5 g of aromatics inunction (compared to a "no-treatment baseline" and to a petrolatum "placebo") on lung mucus clearance measured by a standard radioaerosol technique.
  
  
  RESULTS
  Aromatic treatment significantly enhanced clearance at two time points 30 (p < 0.05) and 60 (p < 0.02) minutes postradioaerosol inhalation but had no demonstrable further effect over the following 5 hours despite further application of the inunction. The clearance improvement (relative to a baseline) observed during the first hour of testing was significantly correlated (p < 0.01) with the concentration level of aromatics.
  
  
  CONCLUSIONS
  Our data, thus, provide objective evidence of a positive effect of aromatics inunction on mucus clearance in chronic airways obstruction.
authors.affiliation: Department of Thoracic Medicine, Royal Free Hospital and University College Medical School, London, UK. amer.alhasani@royalfree.nhs.uk
authors.forename: Amir
authors.initials: A
authors.lastname: Hasani
authors.forename: Demetri
authors.initials: D
authors.lastname: Pavia
authors.forename: Nathan
authors.initials: N
authors.lastname: Toms
authors.forename: Paul
authors.initials: P
authors.lastname: Dilworth
authors.forename: John E
authors.initials: JE
authors.lastname: Agnew
mesh_terms: D000368:Aged; D019341:Aromatherapy / Q000379:methods*; D029481:Bronchitis, Chronic / Q000150:complications / Q000188:drug therapy*; D002164:Camphor / Q000627:therapeutic use; D003371:Cough / Q000188:drug therapy / Q000209:etiology; D018592:Cross-Over Studies; D003511:Cyclohexanols / Q000627:therapeutic use; D000077591:Eucalyptol; D005260:Female; D005541:Forced Expiratory Volume / Q000187:drug effects; D006801:Humans; D008168:Lung / Q000187:drug effects / Q000503:physiopathology; D008297:Male; D008610:Menthol / Q000627:therapeutic use; D008875:Middle Aged; D039821:Monoterpenes; D009079:Mucociliary Clearance / Q000187:drug effects*; D012636:Secretory Rate / Q000187:drug effects; D016037:Single-Blind Method; D013729:Terpenes / Q000627:therapeutic use; D013997:Time Factors; D016896:Treatment Outcome; D014425:Turpentine / Q000627:therapeutic use
chemical_list: D003511:Cyclohexanols; D039821:Monoterpenes; D013729:Terpenes; D008610:Menthol; D002164:Camphor; D000077591:Eucalyptol; D014425:Turpentine