Abstract
Objective: To determine the incidence of posttracheostomy tracheal stenosis and to investigate variables related to the patient, hospitalization, or operation that may affect stenosis rates. Study Design: A combined retrospective cohort and case-control study. Setting: Tertiary care academic medical center. Subjects and Methods: A total of 1656 patients who underwent tracheostomy at a tertiary care medical center from January 2011 to November 2016 were reviewed for evidence of subsequent tracheal stenosis on airway endoscopy or computed tomography. Forty-three confirmed cases of posttracheostomy tracheal stenosis (PTTS) were compared with a subgroup of 319 controls. Factors including medical comorbidity, type and setting of tracheostomy, and hospitalization details were analyzed. Results: Five-year incidence of PTTS was 2.6%. Obesity was the sole demographic factor associated with stenosis. Hospitalization-related variables associated with stenosis included tracheostomy after 10 days of orotracheal intubation and endotracheal tube cuff pressure ≥30 mm H2O. The surgical variables associated with higher rates of stenosis included percutaneous technique and insertion of an initial tracheostomy tube size >6. Bjork flap creation was negatively associated with stenosis. In multivariable analysis, obesity and insertion of tracheostomy tube size >6 were identified as risk factors. Conclusion: Greater than 10 days of orotracheal intubation prior to tracheostomy and endotracheal tube cuff pressure ≥30 mm H2O were associated with greater rates of subsequent tracheal stenosis. The only patient-related factor associated with tracheal stenosis was obesity. Surgical variables associated with increased rates of subsequent stenosis included placement of a tracheostomy tube size >6, use of percutaneous technique, and failure to create a Bjork flap.
Original language | English (US) |
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Pages (from-to) | 698-704 |
Number of pages | 7 |
Journal | Otolaryngology - Head and Neck Surgery (United States) |
Volume | 159 |
Issue number | 4 |
DOIs | |
State | Published - Oct 1 2018 |
Keywords
- open tracheostomy
- percutaneous tracheostomy
- predictors of prolonged intubation
- prolonged intubation
- prolonged ventilation
- risks of tracheostomy
- subglottic stenosis
- tracheal stenosis
- tracheostomy
ASJC Scopus subject areas
- Surgery
- Otorhinolaryngology