1. Effect of olfactory bulb atrophy on the success of olfactory training
- Author
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Jeong Hyun Lee, Woo Ri Choi, Ji Heui Kim, Min Kyoung Lee, and Ja Yoon Ku
- Subjects
Olfactory system ,medicine.medical_specialty ,Gastroenterology ,Olfaction Disorders ,03 medical and health sciences ,0302 clinical medicine ,Atrophy ,Internal medicine ,medicine ,Humans ,Risk factor ,030223 otorhinolaryngology ,medicine.diagnostic_test ,business.industry ,Magnetic resonance imaging ,General Medicine ,medicine.disease ,Magnetic Resonance Imaging ,Olfactory Bulb ,Olfactory bulb ,Smell ,Otorhinolaryngology ,030220 oncology & carcinogenesis ,Etiology ,Neurosurgery ,business - Abstract
To evaluate the success of olfactory training in patients with olfactory loss and olfactory bulb (OB) atrophy detected on magnetic resonance imaging (MRI) and other characteristics. This study included 48 patients with olfactory loss who underwent a nasal endoscopic examination and MRI before olfactory training. The Korean Version of the Sniffin’ Sticks Test was performed before and after training. The olfactory training success was defined as an improvement of more than 6 points in the Threshold-Discrimination-Identification (TDI) score. Patient characteristics and OB atrophy pre-training were compared between successful and unsuccessful groups. The etiology of olfactory loss included respiratory viral infection in 30 (62.5%), trauma in 10 (20.8%), and idiopathic loss in 8 (16.7%) patients. Twenty-three (47.9%) of 48 patients exhibited successful olfactory training. Etiology, age, gender, and symptom duration were not different between unsuccessful and successful groups. Pre-training discrimination, identification, and TDI scores were significantly different between unsuccessful and successful groups (P
- Published
- 2021