Version 1
: Received: 4 July 2022 / Approved: 5 July 2022 / Online: 5 July 2022 (08:33:30 CEST)
How to cite:
Lechien, J.R.; Saussez, S. Injection of Platelet Rich Plasma in the Olfactory Cleft for COVID-19 Patients with Persistent Olfactory Dysfunction: Description of the Technique. Preprints2022, 2022070069. https://doi.org/10.20944/preprints202207.0069.v1
Lechien, J.R.; Saussez, S. Injection of Platelet Rich Plasma in the Olfactory Cleft for COVID-19 Patients with Persistent Olfactory Dysfunction: Description of the Technique. Preprints 2022, 2022070069. https://doi.org/10.20944/preprints202207.0069.v1
Lechien, J.R.; Saussez, S. Injection of Platelet Rich Plasma in the Olfactory Cleft for COVID-19 Patients with Persistent Olfactory Dysfunction: Description of the Technique. Preprints2022, 2022070069. https://doi.org/10.20944/preprints202207.0069.v1
APA Style
Lechien, J.R., & Saussez, S. (2022). Injection of Platelet Rich Plasma in the Olfactory Cleft for COVID-19 Patients with Persistent Olfactory Dysfunction: Description of the Technique. Preprints. https://doi.org/10.20944/preprints202207.0069.v1
Chicago/Turabian Style
Lechien, J.R. and Sven Saussez. 2022 "Injection of Platelet Rich Plasma in the Olfactory Cleft for COVID-19 Patients with Persistent Olfactory Dysfunction: Description of the Technique" Preprints. https://doi.org/10.20944/preprints202207.0069.v1
Abstract
Objective: To describe technique of platelet rich plasma injection into the olfactory cleft in patients with long-term COVID-19 olfactory dysfunction. Methods: The technique starts with the blood extraction and the isolation of PRP through a 10-min centrifugation (4,200 rpm). The supernatant was injected in nasal regions with a 27-G needle after a local anesthesia with Xylocain 10% spray. The injection was performed through a 0° rigid optic. Precisely, several points of 0.2–0.5 mL were performed in the nasal septum in regard of the head of the middle turbine, and in the head of the middle turbine in both sides. Clinical, psychophysical and pain outcomes were evaluated pre- to post-injection. Results: A 22-year-old female with 24-month post-COVID-19 anosmia was recruited for the injection of PRP. The olfactory cleft endoscopic scale score was 0 and the threshold, discrimination and identification scores were 1, 8 and 0, respectively. The Olfactory Disorder Questionnaire score was 51. The patient benefited from the injection of 2.2 mL of PRP in nasal regions, which was done without complication. The procedure pain level was 2/10, while the local anesthesia with xylocaine 10% was judged as the most annoyance step with a score of 3/10. At 2-month post-injection, the TDI scores reached 16, 16, and 16 (48), while the Olfactory Disorder Questionnaire was 73. The patient described its recovery as very rapid, lasting 3-4 days, and occurring 3-week post-injection. Conclusion: The injection of PRP into the olfactory cleft is a safe and easiness new approach that may improve the recovery of smell sense.
Medicine and Pharmacology, Medicine and Pharmacology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
