한국간호과학회

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  • ANR (Asian Nursing Research)

ANR (Asian Nursing Research)

년도별 ‘권’과 ‘호’를 선택해 주세요 (ISSN 1598-2874(38권 4호까지), ISSN 2005-3673(38권 5호부터)

본문
제목 How Strong is the Evidence for the Anxiolytic Efficacy of Lavender?: Systematic Review and Metaanalysis of Randomized Controlled Trials
저자 : Hyun-Ju Kang , Eun Sook Nam , Yongmi Lee , Myoungsuk Kim 게시일 : 2019년 12월 페이지 : p295~p305
저자 Hyun-Ju Kang , Eun Sook Nam , Yongmi Lee , Myoungsuk Kim 게시일 2019년 12월 페이지 p295~p305 인쇄
파일
키워드 anxiety; aromatherapy; lavandula; meta-analysis; systematic review
Purpose
Although lavender is purported to possess anxiolytic and sedative properties and is often recommended for relieving anxiety, the efficacy of lavender has not been well established. Thus, this review aimed to evaluate the anxiolytic effects of lavender aromatherapy.

Methods
Ten data bases were searched for studies published between 2000 and 2018. Randomized controlled trials investigating the anxiolytic effects of lavender aromatherapy with any type of application for persons with or without clinical anxiety were included. The outcome variables included self-rated anxiety, vital signs, and salivary cortisol and chromogranin A (CgA) levels. In the meta-analysis, standardized mean difference and 95% confidence interval were calculated as effect measures by applying the random effect model and inverse variance method.

Results
Twenty-two trials met our inclusion criteria. Lavender aromatherapy was found to have favorable effects in relieving anxiety (Hedges’ ĝ = −0.65; 95% CI, −0.84 to −0.46) and decreasing systolic blood pressure (ĝ = −0.22; 95% CI, −0.43 to −0.02), heart rate (ĝ = −0.53; 95% CI, −0.74 to −0.32), and salivary cortisol (ĝ = −1.29; 95% CI, −2.23 to −0.35) and CgA (ĝ = −2.29; 95% CI, −3.24 to −1.34) levels. However, the meta-analysis did not reveal any significant effects of lavender on diastolic blood pressure (effect size: −0.17; 95% CI, −0.37–0.04).

Conclusion
Aromatherapy using lavender oil might have favorable effects on anxiety and its physiological manifestations. Future studies are recommended with an emphasis on methodological quality. In nursing practice, it is suggested that lavender aromatherapy be included in programs intended to manage anxiety in patients across diverse healthcare settings.