ArticleORL; journal for oto-rhino-laryngology and its related specialties2023
Surgical Approaches for Possible Positions of an Olfactory Implant to Stimulate the Olfactory Bulb.
Article in ORL; journal for oto-rhino-laryngology and its related specialties, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 10 citations in OpenAlex.
- The Supraorbital Keyhole Craniotomy Approach for Olfactory Implantation: A Radiological Feasibility Study.Journal of neurological surgery. Part B, Skull base · 2026Article
- Comparison between olfactory bulb and olfactory tract implantations through an endoscopic supraorbital keyhole approach: a cadaveric study.Acta neurochirurgica · 2025Article
- Substitution of human olfaction by the trigeminal system.Science advances · 2025Article
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10 authors at 3 institutions in 3 countries.
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Abstract
introductionCurrent scientific developments seem to allow for an "olfactory implant" in analogy to cochlear implants. However, the position and surgical approaches for electrical stimulation of the olfactory system are unclear.
methodsIn a human anatomic cadaver study, we investigated different endoscopic approaches to electrically stimulate the olfactory bulb (OB) based on the following considerations: (1) the stimulating electrode should be close to the OB. (2) The surgical procedure should be as non-invasive and safe as possible and (3) as easy as possible for an experienced ENT surgeon.
resultsIn summary, the endoscopic intracranial positioning of the electrode via a widened ostium of the fila olfactoria or a frontal sinus surgery like a Draf IIb procedure is a good option in terms of patients' risk, degree of difficulty for ENT surgeons, and position to the OB. Endoscopic intranasal positioning appeared to be the best option in terms of patient risk and the degree of difficulty for ENT surgeons. Although a bigger approach to the OB using a drill and the combined intranasal endoscopic and external approach enabled a close placement of the electrode to the OB, they do not seem relevant in practice due to their higher invasiveness.
conclusionThe study suggested that an intranasal positioning of a stimulating electrode is possible, with placements beneath the cribriform plate, extra- or intracranially, applying elegant surgical techniques with low or medium risk to the patient and a close placement to OB.
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