Objective
To determine the patterns of tracheostomy cuff pressure changes with various air inflation amounts in different types of tracheostomy tubes to obtain basic data for appropriately managing longterm tracheostomy.
Methods
We performed tracheostomy on a 46-year-old male cadaver. Three types of tracheostomy tubes (single-cuffed, double-cuffed, and adjustable flange), divided into 8 different subtypes based on internal tube diameters and cuff diameters, were inserted into the cadaver. Air was inflated into the cuff, and starting with 1 mL air, the cuff pressure was subsequently measured using a manometer.
Results
For the 7.5 mm/14 mm tracheostomy tube, cuff inflation with 3 mL of air yielded a cuff pressure within the recommended range of 20–30 cmH₂O. The 7.5 mm/24 mm tracheostomy tube showed adequate cuff pressure at 5 mL of air inflation. Similar values were observed for the 8.0 mm/16 mm and 8.0 mm/27 mm tubes. Double-cuffed tracheostomy cuff pressures (7.5 mm/20 mm and 8.0 mm/20 mm tubes) at 3 mL air inflation had cuff pressures of 18–20 cmH₂O at both the proximal and distal sites. For the adjustable flange tracheostomy tube, cuff pressure at 6 mL of cuff air inflation was within the recommended range. Maximal cuff pressure was achieved at inflation with almost 14 mL of air, unlike other tube types.
Conclusion
Various types of tracheostomy tubes showed different cuff pressures after inflation. These values might aid in developing guidelines For patients who undergo tracheostomy and are discharged home without cuff pressure manometers, this standard might be helpful to develop guidelines.

Citations

• Tracheotomy
  Daniel Gorelik, Yixuan James Zheng, Franklin Wu, Ran A. Wang
  Medical Clinics of North America.2026; 110(1): 103.     CrossRef
• Fluid-Filled Tracheal Tube Cuffs: Implications for Speech, Sealing, and Safety
  Thomas C. Blakeman
  Respiratory Care.2025; 70(7): 930.     CrossRef
• Impact of Low‐Volume, Low‐Pressure Tracheostomy Cuffs on Acute Mucosal Injury in Swine
  Alexandra J. Berges, Ioan A. Lina, Rafael Ospino, Hsiu‐Wen Tsai, Dacheng Ding, Jessica M. Izzi, Alexander T. Hillel
  Otolaryngology–Head and Neck Surgery.2022; 167(4): 716.     CrossRef