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Updated: Feb 6, 2026
08:26
Design of a Biocompatible Drug-Eluting Tracheal Stent in Mice with Laryngotracheal Stenosis
Published on: January 21, 2020
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Risk Factors for Posttracheostomy Tracheal Stenosis.
Michael Li1, Yin Yiu1, Tyler Merrill2
11 Department of Otolaryngology, The Ohio State University, Columbus, Ohio, USA.
Summary
Post-tracheostomy tracheal stenosis (PTTS) affects 2.6% of patients. Risk factors include obesity, prolonged intubation, high cuff pressure, and larger tracheostomy tube size.
Area of Science:
- Medical research
- Surgical outcomes
- Pulmonology
Background:
- Tracheostomy is a common procedure.
- Posttracheostomy tracheal stenosis (PTTS) is a potential complication.
- Identifying risk factors is crucial for prevention.
Purpose of the Study:
- To determine the incidence of PTTS.
- To investigate patient, hospitalization, and operative variables associated with PTTS.
Main Methods:
- Combined retrospective cohort and case-control study.
- 1656 patients undergoing tracheostomy reviewed.
- 43 PTTS cases compared with 319 controls.
Main Results:
- Five-year PTTS incidence was 2.6%.
- Obesity, >10 days orotracheal intubation, cuff pressure ≥30 mm H2O, percutaneous technique, and initial tracheostomy tube size >6 were associated with PTTS.
- Bjork flap creation was protective.
Conclusions:
- Prolonged intubation and high cuff pressure increase PTTS risk.
- Obesity is a key patient-related risk factor.
- Surgical technique and tracheostomy tube size significantly impact stenosis rates.
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