title: [Effect of subglottic air insufflation on subglottic pressure during swallowing].
abstract: OBJECTIVE
  To determine whether there are differences between subglottic pressure during swallowing with and without air insufflation via a subglottic catheter in tracheostomized patients.
  
  
  METHODS
  A prospective, randomized cross-over study was made.
  
  
  METHODS
  Adult Intensive Care Units.
  
  
  METHODS
  Patients requiring mechanical ventilation and tracheostomy with a subglottic catheter, and with tolerance to deflation of the balloon and a speaking valve placed over the opening of the tracheostomy tube.
  
  
  METHODS
  Subglottic pressure was measured during swallowing of a thickened solution with and without the delivery of airflow through the subglottic catheter.
  Subglottic pressure during swallowing.
  
  
  RESULTS
  Twelve out of 14 patients showed higher subglottic pressure values during swallowing with air insufflation. Two patients showed no differences between both conditions. Median (Med) values of subglottic pressure for the first, second and third swallow were 5, 4 and 4.5 cmH2O (Med 4.5 cmH2O) without air insufflation, and 8, 5.5 and 7.5 cmH2O (Med 5.5 cmH2O) with air insufflation, respectively (Wilcoxon, Z=-3.078; p=.002).
  
  
  CONCLUSIONS
  In a group of tracheostomized patients, air insufflation via a subglottic catheter increased subglottic pressure levels measured during swallowing.
authors.affiliation: Unidad de Kinesiología, Departamento de Diagnóstico y Tratamiento, Hospital de Agudos Donación Francisco Santojanni, Buenos Aires, Argentina. Electronic address: martinclarett@yahoo.com.ar.
authors.forename: M
authors.initials: M
authors.lastname: Clarett
authors.affiliation: Unidad de Kinesiología, Departamento de Diagnóstico y Tratamiento, Hospital de Agudos Donación Francisco Santojanni, Buenos Aires, Argentina.
authors.forename: M F
authors.initials: MF
authors.lastname: Andreu
authors.affiliation: Unidad de Kinesiología, Departamento de Diagnóstico y Tratamiento, Hospital de Agudos Donación Francisco Santojanni, Buenos Aires, Argentina.
authors.forename: I G
authors.initials: IG
authors.lastname: Salvati
authors.affiliation: Unidad de Kinesiología, Departamento de Diagnóstico y Tratamiento, Hospital de Agudos Donación Francisco Santojanni, Buenos Aires, Argentina.
authors.forename: M C
authors.initials: MC
authors.lastname: Donnianni
authors.affiliation: Unidad de Kinesiología, Departamento de Diagnóstico y Tratamiento, Hospital de Agudos Donación Francisco Santojanni, Buenos Aires, Argentina.
authors.forename: G S
authors.initials: GS
authors.lastname: Montes
authors.affiliation: Unidad de Kinesiología, Departamento de Diagnóstico y Tratamiento, Hospital de Agudos Donación Francisco Santojanni, Buenos Aires, Argentina.
authors.forename: M G
authors.initials: MG
authors.lastname: Rodríguez
mesh_terms: D000328:Adult; D000368:Aged; D000388:Air; D002404:Catheterization; D018592:Cross-Over Studies; D003679:Deglutition / Q000502:physiology*; D003680:Deglutition Disorders / Q000209:etiology / Q000503:physiopathology; D004750:Enteral Nutrition; D005260:Female; D006801:Humans; D007327:Insufflation; D008297:Male; D008875:Middle Aged; D011312:Pressure; D011446:Prospective Studies; D012119:Respiration; D012121:Respiration, Artificial; D012212:Rheology; D012996:Solutions; D014139:Tracheostomy; D014783:Viscosity; D055815:Young Adult
chemical_list: D012996:Solutions
keywords: Deglución; Presión subglótica; Speaking valve; Subglottic pressure; Swallowing; Tracheostomy; Traqueostomía; Válvula fonatoria