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A new device for frontal sinus endoscopy: first clinical report.
1Department of Otorhinolaryngology, Head and Neck Surgery, University of Erlangen-Nuremberg, Waldstrasse 1, D-91054 Erlangen, Germany. heinrich.iro@hno.imed.uni-erlangen.de
Summary
A new curved endoscope improves visualization of the frontal sinus during surgery. This device aids in diagnosing conditions like tumors and fractures, offering better surgical control.
Area of Science:
- Otolaryngology
- Medical Device Technology
Background:
- Current endoscopic and microscopic techniques for paranasal sinus surgery face challenges visualizing the frontal sinus due to anatomical limitations.
- Flexible endoscopes often lack sufficient light and maneuverability for adequate frontal sinus inspection.
Purpose of the Study:
- To evaluate the clinical usefulness and indications of a newly developed, specially curved rigid endoscope designed for frontal sinus access.
- To overcome the limitations of existing endoscopic tools in visualizing the frontal sinus anatomy.
Main Methods:
- A 1.5 mm working channel, specially curved rigid endoscope was developed.
- The device was used in 15 patients undergoing paranasal sinus surgery to assess its efficacy.
Main Results:
- The endoscope successfully accessed the frontal sinus in all patients post-ethmoidectomy.
- Adequate visualization with sufficient light intensity was achieved in 14 patients.
- Distinguished between mucosal polyps and secretions causing frontal sinus shadowing on CT scans.
- Identified specific indications: intraoperative/postoperative control, tumor evaluation, biopsies, and fracture assessment.
Conclusions:
- The novel curved endoscope offers enhanced visualization within the frontal sinus.
- This device expands the capabilities of endoscopic sinus surgery.