title: Validation of methodology for assessment of pulmonary function in patients who undergo total laryngectomy.
abstract: In patients submitted to laryngectomy, pulmonary complications may lead to death. A simple method with a standardized extratracheal device for the pulmonary assessment of laryngectomized patients would be very useful. The purpose of this study was to validate the methodology for pulmonary assessment in these patients through the application of an adhesive extratracheal device.
  
  
  
  This transversal study included 50 patients who had been submitted to total laryngectomy. Pulmonary tests were used to characterize the presence of respiratory functional limitation. Aiming at evaluating the reproducibility of the performed tests, parameters were used for the acceptance of the tests. A comparison of these parameters was made with 50 tests performed in nonlaryngectomized patients.
  
  
  
  The total of rejected tests was greater in the control group when compared to the laryngectomized group.
  
  
  
  The methodology for the assessment of the pulmonary function by using the extratracheal proposed device is reliable, accurate, and reproducible. © 2016 Wiley Periodicals, Inc. Head Neck 38: E2030-E2034, 2016.
authors.affiliation: Department of Head and Neck Surgery, São Paulo Medical School, University of São Paulo, São Paulo, Brazil.
authors.forename: Mario A
authors.initials: MA
authors.lastname: Castro
authors.affiliation: Department of Head and Neck Surgery, São Paulo Medical School, University of São Paulo, São Paulo, Brazil.
authors.forename: Rogério Aparecido
authors.initials: RA
authors.lastname: Dedivitis
authors.affiliation: Department of Pneumology, INCOR, University of Sao Paulo Medical School, São Paulo, Brazil.
authors.forename: João M
authors.initials: JM
authors.lastname: Salge
authors.affiliation: University of Sao Paulo Medical School, São Paulo, Brazil.
authors.forename: Leonardo K
authors.initials: LK
authors.lastname: Koyama
authors.affiliation: Department of Head and Neck Surgery, São Paulo Medical School, University of São Paulo, São Paulo, Brazil.
authors.forename: Claudio Roberto
authors.initials: CR
authors.lastname: Cernea
authors.affiliation: Department of Head and Neck Surgery, São Paulo Medical School, University of São Paulo, São Paulo, Brazil.
authors.forename: Lenine Garcia
authors.initials: LG
authors.lastname: Brandão
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D007822:Laryngeal Neoplasms / Q000601:surgery*; D007825:Laryngectomy; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D012129:Respiratory Function Tests / Q000295:instrumentation / Q000379:methods*
keywords: laryngeal neoplasias; laryngectomy; plethysmography; respiratory function tests; spirometry