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Updated: Jun 3, 2026

Endotracheal Intubation via Tracheotomy and Subsequent Thoracotomy in Rats for Non-Survival Applications
Published on: March 15, 2024
External light guidance for percutaneous dilatational tracheotomy.
Ivan H El-Sayed1, James E Ho, David W Eisele
1Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, San Francisco, California, USA. ielsayed@ohns.ucsf.edu
External white light guidance improves percutaneous dilatational tracheotomy (PDT) safety and accuracy. This technique aids in precise endotracheal tube and needle placement, reducing surgeon anxiety during the procedure.
Area of Science:
- Medical procedures
- Surgical techniques
- Respiratory care
Background:
- Percutaneous dilatational tracheotomy (PDT) is a widely used procedure.
- While generally safe, opportunities exist to enhance its precision and reduce complications.
- This study introduces a novel external white light guidance system for PDT.
Purpose of the Study:
- To evaluate the efficacy of an external white light guide in percutaneous dilatational tracheotomy.
- To assess the system's ability to facilitate accurate endotracheal tube and needle placement.
- To determine if the light guidance system reduces procedural difficulty and surgeon anxiety.
Main Methods:
- A retrospective review of 15 consecutive patients undergoing PDT with external light guidance.
- A white light source was applied externally to the trachea.
- Transmitted light visualized through bronchoscopy guided needle entry point prediction.
Main Results:
- The external light was successfully identified in the tracheal lumen in all 15 patients.
- Endotracheal tube tip placement in the subglottis was expedited (approx. 10 seconds) in 13 patients.
- Needle entry point prediction was accurate within 1-2 mm of the external light in all cases.
Conclusions:
- External light guidance offers a rapid and accurate method for needle insertion during PDT.
- This technique can enhance procedural safety and reduce surgeon anxiety, particularly in educational settings.
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