title: Oxidative stress after lung resection therapy: A pilot study.
abstract: OBJECTIVE
  To investigate whether oxidative stress occurs following lobectomy and pneumonectomy and to evaluate whether markers of oxidative stress might be of value in the assessment of the diagnosis, course, and prognosis of postoperative complications.
  
  
  METHODS
  A prospective study.
  
  
  METHODS
  A specialized thoracic surgical unit in a large referral hospital.
  
  
  METHODS
  Twenty-eight patients with lung carcinoma undergoing thoracotomy.
  
  
  METHODS
  Exhaled H(2)O(2) concentrations in breath condensate were measured by spectrophotometry, while malondialdehyde (MDA) levels in urine samples collected every 24 h were measured by reversed-phase, ion-pair high-performance liquid chromatography using ultraviolet detection.
  
  
  RESULTS
  Our results show increased H(2)O(2) and MDA levels in lobectomy patients compared with pneumonectomy patients. A strong correlation was found between the levels of H(2)O(2) and MDA.
  
  
  CONCLUSIONS
  The present data support the hypothesis that oxidative stress may occur following pulmonary resection.
authors.affiliation: Department of Clinical Chemistry, St. Antonius Hospital, Nieuwegein, The Netherlands.
authors.forename: E C
authors.initials: EC
authors.lastname: Lases
authors.forename: V A
authors.initials: VA
authors.lastname: Duurkens
authors.forename: W B
authors.initials: WB
authors.lastname: Gerritsen
authors.forename: F J
authors.initials: FJ
authors.lastname: Haas
mesh_terms: D000368:Aged; D015415:Biomarkers; D001944:Breath Tests; D002851:Chromatography, High Pressure Liquid; D005260:Female; D006801:Humans; D006861:Hydrogen Peroxide / Q000378:metabolism*; D008175:Lung Neoplasms / Q000378:metabolism* / Q000601:surgery; D008297:Male; D008315:Malondialdehyde / Q000652:urine*; D008875:Middle Aged; D018384:Oxidative Stress; D010865:Pilot Projects; D011013:Pneumonectomy / Q000009:adverse effects*; D011379:Prognosis; D011446:Prospective Studies; D011654:Pulmonary Edema / Q000378:metabolism* / Q000601:surgery; D013053:Spectrophotometry
chemical_list: D015415:Biomarkers; D008315:Malondialdehyde; D006861:Hydrogen Peroxide