Effects of Aromatherapy on Agitation in Patients with Dementia: A Systematic Literature Review and Meta-analysis
Article information
Abstract
Purpose
The purpose of this study is to identify the effects of aromatherapy on agitation in patients with dementia using a meta-analysis and systemic literature review.
Methods
The EMBASE, CINAHL, MEDLINE, and other databases were searched up to November 2017.
Results
Of 419 publications identified, 12 met inclusion criteria, and 9 studies were used to estimate the effect size of aromatherapy. A total of 837 participants across all studies were included. The commonly applied methods were massage (50%), type of oil lavender (75%), and instrument Cohen-Mansfield Agitation Inventory (75%). A medium effect size of aromatherapy on agitation was identified (d=−0.56, I2=65.0%, p=.001). The massage group has lower effect size than the other group (d=−0.98, I2=0.0%, p=.001).
Conclusion
Aromatherapy appears to be effective in improving agitation in patients with dementia. However, further studies for home-dwelling patients with dementia and with different types of aroma oil should be conducted in the future. In addition, research with well-designed are needed to assess the effects or aromatherapy on agitation.
Notes
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by Ministry of Education (No. 2017R1D1A3B03032896).
Appendices
Appendix 1
List of Studies Included in a Systemic Review
1. Akhondzadeh S, Noroozian M, Mohammadi M, Ohadinia S, Jamshidi AH, Khani M. Melissa officinalis extract in the treatment of patients with mild to moderate Alzheimer's disease: A double blind, randomised, placebo controlled trial. Journal of Neurology, Neurosurgery, and Psychiatry. 2003;74(7):863–866. https://doi.org/10.1136/jnnp.74.7.863
2. Ballard CG, O'Brien JT, Reichelt K, Perry EK. Aromatherapy as a safe and effective treatment for the management of agitation in severe dementia: The results of a double-blind, placebo-controlled trial with Melissa. The Journal of Clinical Psychiatry. 2002;63(7):553–558. https://doi.org/10.4088/JCP.v63n0703
3. Burns A, Perry E, Holmes C, Francis P, Morris J, Howes MJ, et al. A double-blind placebo-controlled randomized trial of Melissa officinalis oil and donepezil for the treatment of agitation in Alzheimer's disease. Dementia and Geriatric Cognitive Disorders. 2011;31(2):158–164. https://doi.org/10.1159/000324438
4. Fu CY, Moyle W, Cooke M. A randomised controlled trial of the use of aromatherapy and hand massage to reduce disruptive behaviour in people with dementia. BioMed Central Complementary & Alternative Medicine. 2013;13(1):165–173. https://doi.org/10.1186/1472-6882-13-165
5. Holmes C, Hopkins V, Hensford C, MacLaughlin V, Wilkinson D, Rosenvinge H. Lavender oil as a treatment for agitated behaviour in severe dementia: A placebo controlled study. International Journal of Geriatric Psychiatry. 2002;17(4):305–308. https://doi.org/10.1002/gps.593
6. Lin PW, Chan W, Ng BF, Lam LC. Efficacy of aromatherapy (Lavandula angustifolia) as an intervention for agitated behaviours in Chinese older persons with dementia: A crossover randomized trial. International Journal of Geriatric Psychiatry. 2007;22(5):405–410. https://doi.org/10.1002/gps.1688
7. O'Connor DW, Eppingstall B, Taffe J, Van Der Ploeg ES. A randomized, controlled cross-over trial of dermally-applied lavender (Lavandula angustifolia) oil as a treatment of agitated behaviour in dementia. BioMed Central Complementary & Alternative Medicine. 2013;13(1):315. https://doi.org/10.1186/1472-6882-13-315
8. Snow LA, Hovanec L, Brandt J. A controlled trial of aromatherapy for agitation in nursing home patients with dementia. Journal of Alternative & Complementary Medicine (New York, NY). 2004;10(3):431–437. https://doi.org/10.1089/1075553041323696
9. Yang MH, Lin LC, Wu SC, Chiu JH, Wang PN, Lin JG. Comparison of the efficacy of aroma-acupressure and aromatherapy for the treatment of dementia-associated agitation. BioMed Central Complementary & Alternative Medicine. 2015;15(1):93. https://doi.org/10.1186/s12906-015-0612-9
10. Yang YP, Lee FP, Chao HC, Hsu FY, Wang JJ. Comparing the effects of cognitive simulation, reminiscence, and aroma-massage on agitation and depressive mood in people with dementia. Journal of the American Medical Directors Association. 2016;17 (8):719–724. https://doi.org/10.1016/j.jamda.2016.03.021
11. Yang YP, Wang CJ, Wang JJ. Effect of aromatherapy massage on agitation and depressive mood in individuals with dementia. Journal of Gerontological Nursing. 2016;42(9):38–46. https://doi.org/10.3928/00989134-20160615-03
12. Yoshiyama K, Arita H, Suzuki J. The effect of aroma hand massage therapy for people with dementia. Journal of Alternative & Complementary Medicine (New York, NY). 2015;21(12):759–765. https://doi.org/10.1089/acm.2015.0158
