Journal
GERIATRIC NURSING
Volume 42, Issue 5, Pages 1210-1217Publisher
MOSBY-ELSEVIER
DOI: 10.1016/j.gerinurse.2021.07.003
Keywords
Dementia; Smell; Inhalation; Aromatherapy; Systematic review
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Funding
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education [2018R1D1A02043480]
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The aim of this study was to examine the effects of olfactory stimulation on both cognitive and behavioral symptoms in neurodegenerative diseases. Seven original articles were selected, indicating that although olfactory stimulation has reported various effects on behavioral and psychological symptoms, standardization and more attention are still needed.
The aim of this study was to examine the effects of olfactory stimulation on both cognitive and behavioral symptoms in neurodegenerative diseases. The criteria for selection of participants in the study included neurodegenerative disease, interventions using olfactory stimulation, and measured cognitive or psychological symptoms. 5301 articles were identified, excluding duplicate papers. Seven original articles were selected according to the full article review and eligibility criteria. The final selected studies were all quasi-experimental studies and were published between 2002 and 2015. To assess the risk of bias, we used Cochrane Collaboration's tool, Non-randomized Studies-of Interventions (ROBINS-I). Although olfactory stimulation reported various effects on behavioral and psychological symptoms, it is still in its infancy. We propose standardization of olfactory stimulation and olfactory training. In patients with neurodegenerative diseases, it is necessary to consider the symptoms and severity of olfactory stimulation. (C) 2021 Elsevier Inc. All rights reserved.
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