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Updated: Apr 27, 2026

Role of Diffusion MRI Tractography in Endoscopic Endonasal Skull Base Surgery
Published on: July 5, 2021
Specific stressors in endonasal skull base surgery with and without navigation
K Stelter1, M N Theodoraki, S Becker
1Department of Otorhinolaryngology, Ludwig Maximilians University, Munich, Germany, klaus.stelter@med.uni-muenchen.de.
This study objectively measured surgeon stress during transnasal surgery. Navigation systems did not significantly alter stress levels, though other OR factors greatly impacted surgeon mental demand.
Area of Science:
- Organizational Psychology
- Surgical Innovation
- Medical Device Technology
Background:
- Modern organizational psychology aims to identify and mitigate workplace stress.
- Transnasal surgeries present unique mental and physical demands for surgeons.
- Navigation systems are increasingly used in endoscopic sinus surgery.
Purpose of the Study:
- To objectively measure mental and physical demands during transnasal surgery.
- To compare stress levels with and without the use of a navigation system.
- To identify key stressors and calming factors in the operating room environment.
Main Methods:
- Biometric parameters (heart rate, heart rate variability, respiratory frequency, masseter tone) were monitored in surgeons during 40 endonasal surgeries.
- Surgeries were divided into two groups: 20 with navigation and 20 without.
- Experienced rhinosurgeons (>250 FESS procedures) performed the surgeries.
Main Results:
- Stress was identified by increased heart rate and decreased heart rate variability.
- No significant difference in stress levels was observed between surgeries with and without navigation.
- Other stressors included time pressure, OR distractions, equipment failure, bleeding, and complex procedures.
Conclusions:
- Navigation systems did not significantly reduce surgeon stress in this study.
- OR environment, team dynamics, and equipment reliability are crucial factors influencing surgeon stress.
- Effective training and motivated OR personnel are essential for minimizing stress and improving surgical outcomes.
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