title: [Treatment of ASS-Associated Polyposis (ASSAP) with a cysteinyl leukotriene receptor antagonist - a prospective drug study on its antiinflammatory effects].
abstract: BACKGROUND
  In a high rate of cases with recurrent polyposis an association with ASS-intolerance is detectable despite missing pulmonary symptoms. New examinations of a disturbed arachidonic acid metabolism lead to the development of new therapeutical options. Treatment with leukotriene-receptor antogonists (LTA) showed primarily good results in therapy of ASS-associated asthma.
  
  
  METHODS
  18 patients with ASS-intolerance trias - diagnosed by oral provocation - were treated with the LTA Montelukast, after undergoing sinus surgery. Patients underwent a diagnostic pathway of provocation including four groups: recurrent chronic sinusitis, excessive polyposis, polyposis associated with asthma and anaphylactic symptoms after oral ASS-intake. Clinically we examined the following parameters periodically after sinus surgery: nasal and pulmonal symptoms by scoring levels, recurrency of polypoid hyperplasia by endoscopic follow-ups and serum ECP-levels. To evaluate antiinflammatory tissue effects of LTA EG1/EG2 labelled cells and cytokine levels of Interleukin 5 in mucosa samples of the lower turbinate were analysed under LTA-therapy.
  
  
  RESULTS
  Under therapy with LTA we saw a beneficial effect on nasal and pulmonary symptoms and a significant reduction of recurrent polyposis in endoscopic examinations in relation to the untreated group. Results were proven by a permanent reduction of serum ECP-level. A reduction of the rate of EG2-positive cells according to decreased Interleukin 5 levels in the nasal mucosa unter LTA-treatment assumed antiinflammatory effects on ASS-associated polyposis.
  
  
  CONCLUSIONS
  We could demonstrate antiinflammatory effects of Leukotriene-Receptor-Antagonists primarily during postoperative treatment of patients with ASS-associated nasal polyps.
authors.affiliation: Universitäts-Hals-Nasen-Ohrenklinik Hamburg-Eppendorf. grundman@uke.uni-hamburg.de
authors.forename: T
authors.initials: T
authors.lastname: Grundmann
authors.forename: M
authors.initials: M
authors.lastname: Töpfner
mesh_terms: D000085:Acetates / Q000627:therapeutic use*; D000328:Adult; D018927:Anti-Asthmatic Agents / Q000627:therapeutic use*; D001241:Aspirin / Q000009:adverse effects*; D001249:Asthma / Q000188:drug therapy / Q000209:etiology; D003521:Cyclopropanes; D005260:Female; D006801:Humans; D020024:Leukotriene Antagonists / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D009298:Nasal Polyps / Q000188:drug therapy* / Q000209:etiology; D011804:Quinolines / Q000627:therapeutic use*; D012008:Recurrence; D013440:Sulfides
chemical_list: D000085:Acetates; D018927:Anti-Asthmatic Agents; D003521:Cyclopropanes; D020024:Leukotriene Antagonists; D011804:Quinolines; D013440:Sulfides; C093875:montelukast; D001241:Aspirin
vernacular_title: Leukotrienrezeptorantagonisten zur Rezidivprophylaxe bei der ASS-assoziierten Polyposis - Erste klinische Ergebnisse zur Wirkung auf entzündliche Gewebeprozesse1.