title: [Rectal ozone therapy for patients with pulmonary emphysema].
abstract: BACKGROUND
  Ozone therapy may stimulate antioxidant systems and protect against free radicals. It has not been used formerly in patients with pulmonary emphysema.
  
  
  OBJECTIVE
  To assess the effects of rectal ozone therapy in patients with pulmonary emphysema.
  
  
  METHODS
  Sixty four patients with pulmonary emphysema, aged between 40 and 69 years, were randomly assigned to receive rectal ozone in 20 daily sessions, rectal medicinal oxygen or no treatment. Treatments were repeated three months later in the first two groups. At baseline and at the end of the study, spirometry and a clinical assessment were performed.
  
  
  RESULTS
  fifty patients completed the protocol, 20 receiving ozone therapy, 20 receiving rectal oxygen and 10 not receiving any therapy. At baseline, patients on ozone therapy had significantly lower values of forced expiratory volume in the first second (fEV1) and fEV1/forced vital capacity. At the end of the treatment period, these parameters were similar in the three treatment groups, therefore they only improved significantly in the group on ozone therapy. No differences were observed in other spirometric parameters.
  
  
  CONCLUSIONS
  Rectal ozone therapy may be useful in patients with pulmonary emphysema.
authors: Centro de Investigaciones del Ozono, La Habana, Cuba.
authors: José Luis
authors: JL
authors: Calunga
authors: Yuleidys
authors: Y
authors: Paz
authors: Silvia
authors: S
authors: Menéndez
authors: Alfredo
authors: A
authors: Martínez
authors: Aparicio
authors: A
authors: Hernández
mesh_terms: D000285:Administration, Rectal; D000328:Adult; D000368:Aged; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010083:Oxidants, Photochemical / Q000008:administration & dosage*; D010100:Oxygen / Q000008:administration & dosage*; D010126:Ozone / Q000008:administration & dosage*; D011656:Pulmonary Emphysema / Q000503:physiopathology / Q000628:therapy*; D012129:Respiratory Function Tests; D012720:Severity of Illness Index; D016896:Treatment Outcome
chemical_list: D010083:Oxidants, Photochemical; D010126:Ozone; D010100:Oxygen