期刊
NEUROLOGICAL SCIENCES
卷 43, 期 12, 页码 6901-6907出版社
SPRINGER-VERLAG ITALIA SRL
DOI: 10.1007/s10072-022-06376-2
关键词
Olfactory training; Epilepsy; Sense of smell; Olfactory dysfunction
The study found that olfactory training can reduce the frequency and duration of seizures, improve the quality of life, and enhance olfactory function in patients with drug-resistant epilepsy. Olfactory training is considered a successful complementary therapy with no adverse reactions in this population.
Objective Epilepsy is a chronic condition characterized by recurrent seizures. Despite miscellaneous antiseizure medications, resistance to treatment is still approximately 30%. This resistance brings forward the multidisciplinary approach and complementary treatments. In this study, we aimed to investigate the effect of olfactory training on epileptic seizures with special aromas having antiseizure effects in patients diagnosed with drug-resistant epilepsy. Methods A total of 24 patients (14 pediatric and 10 adults) with drug-resistant epilepsy were recruited for the study. Participants were asked to inhale the standardized bottle filled with lavender aroma (Lavandula Angustifolia) twice a day (morning and evening) for 30-45 s (2 cm in front of nose; 10-15 s to right and left nostril and 10-15 s to both nostrils) for 3 months. The type, frequency, duration of seizures, the quality of life (SF-36 and PedsQL 4.0), and olfactory functions (Sniffin' Sticks Test and Pediatric Smell Wheel) were re-assessed. Results Statistical analysis showed that olfactory training decreased the seizure frequency (p < 0.001) and the seizure duration (p = 0.02). A global 50% seizure reduction was seen among patients. Moreover, olfactory training increased the quality of life (p = 0.003) and improved the olfactory function in both the pediatric and adult groups (p = 0.017, p = 0.05, respectively). There was no adverse reaction and no increase in seizure frequency. Significance The observations of the present investigation suggest that olfactory training is a successful complementary therapy with no adverse reaction in patients with drug-resistant epilepsy. Large cohort studies and longer follow-up periods are needed for providing olfactory training as a therapy modality in patients with epilepsy.
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