About this trial
This research is being done to better characterize the part of the nose that helps us smell. Currently, the only ways to study smell loss mostly rely on how people report it, rather than being able to see the underlying structures directly. In this study, we will use a special microscope (Confocal Laser Endomicroscopy (CLE)), originally developed for brain tissue, to look at the part of the nose that helps to detects smell. We hope to identify the tiny structures in that area and see how they might be different in people who have smell loss compared to those who do not.
Eligibility criteria
Qualifiers
Adults aged ≥18 years
Undergoing endoscopic sinus or endonasal skull base surgery while under - general anesthesia where the nasal turbinate is accessible
Able to complete study questionnaires and psychophysical smell testing
Able to provide informed consent.
Disqualifiers
Known allergy or hypersensitivity to fluorescein
Pregnancy
Medical instability precluding participation
Severe anatomic obstruction preventing safe access to the olfactory cleft and nasal turbinate
Trial design
Treatments tested in this trial
- CONVIVO system
- Conventional histologic evaluation
- Fluorescein injection, USP 10%
Treatment groups
Sponsors and collaborators
Dartmouth-Hitchcock Medical Center
Lead sponsor
National Center for Advancing Translational Sciences (NCATS)
Collaborator