title: Endoscopic sinus surgery in individuals with facial pain due to chronic maxillary sinusitis - a functional controlled study.
abstract: OBJECTIVE
  To measure the intra-sinus pressure and the maxillary sinus functional efficiency (MSFE) in individuals with chronic facial pain after conservative or conventional endoscopic maxillary surgery, as well as in controls.
  
  
  METHODS
  Sinus manometry was performed 5 times during inhalation.
  
  
  RESULTS
  The resemblance of pressure values comparing those treated with minimally invasive surgery and controls was remarkable, while traditional surgery significantly decreased intrasinusal pressures. The MSFE was 100% in the three tested times for controls, close to that in those submitted to minimally invasive surgery (98.3%, 98.8%, and 98.0%) and significantly impaired after conventional surgery (48.8%, 52.1%, 48.5 %, p<0.01). All patients submitted to minimally invasive surgery remained pain-free after three months of surgery, relative to 46.7% of the submitted to conventional surgery (p<0.05).
  
  
  CONCLUSIONS
  Minimally invasive sinus surgery is associated with functionality of the chambers that resemble what is found in normal individuals.
authors.affiliation: Headache and Cervico-Facial Pain Service, A.S.L. NA 3, Naples, Italy.
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Sanges
authors.affiliation: Surgery Department, ?S. Leonardo Hospital?, A.S.L. NA 3, Castellammare di Stabia, Naples, Italy.
authors.forename: Mario
authors.initials: M
authors.lastname: Gamerra
authors.affiliation: Surgery Department, ?S. Leonardo Hospital?, A.S.L. NA 3, Castellammare di Stabia, Naples, Italy.
authors.forename: Gerardo
authors.initials: G
authors.lastname: Sorrentino
authors.affiliation: Department of Physics ?E. R. Caianiello?, University of Salerno, Italy.
authors.forename: Roberto
authors.initials: R
authors.lastname: De  Luca
authors.affiliation: ?Lyceum Cosenza?, Castellammare di Stabia, Naples, Italy.
authors.forename: Maddalena
authors.initials: M
authors.lastname: Merone
authors.affiliation: Department of Neurology, Hospital ?G. Rummo?, Benevento, Italy.
authors.forename: Michele
authors.initials: M
authors.lastname: Feleppa
authors.affiliation: Labrys Biologics Inc, San Mateo, CA, USA.
authors.forename: Marcelo Eduardo
authors.initials: ME
authors.lastname: Bigal
mesh_terms: D000328:Adult; D002908:Chronic Disease; D004724:Endoscopy / Q000379:methods*; D005157:Facial Pain / Q000209:etiology / Q000503:physiopathology / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008365:Manometry; D008443:Maxillary Sinus / Q000503:physiopathology / Q000601:surgery*; D015523:Maxillary Sinusitis / Q000150:complications / Q000503:physiopathology / Q000601:surgery*; D013517:Otorhinolaryngologic Surgical Procedures / Q000379:methods*; D016896:Treatment Outcome