Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/154113
Title: EFFECTIVENESS OF AROMATHERAPY ON PREOPERATIVE ANXIETY, MEAN ARTERIAL PRESSURE AND HEART RATE AMONG PATIENTS BEFORE SURGERIES: A SYSTEMATIC REVIEW AND META-ANALYSIS
Authors: TAN YEE KIT, CORLISS
Keywords: Aromatherapy
Essential oil
Preoperative period
Surgery
Anxiety
Issue Date: 25-May-2019
Citation: TAN YEE KIT, CORLISS (2019-05-25). EFFECTIVENESS OF AROMATHERAPY ON PREOPERATIVE ANXIETY, MEAN ARTERIAL PRESSURE AND HEART RATE AMONG PATIENTS BEFORE SURGERIES: A SYSTEMATIC REVIEW AND META-ANALYSIS. ScholarBank@NUS Repository.
Abstract: Background: The high incidences of preoperative anxiety and the potentially detrimental effects associated with it is a major cause for concern. Existing interventions like the use of anxiolytic medications are adopted, however they may bring about several side-effects. Aromatherapy is an alternative complementary medicine that has the potential to effectively decrease preoperative anxiety. No prior systematic reviews have been conducted on the use of aromatherapy to alleviate anxiety among preoperative patients specifically. Aims: This review aimed to evaluate the effectiveness of inhalation aromatherapy on alleviating preoperative anxiety and reducing mean arterial pressure (MAP) and heart rate (HR) readings. It also aimed to explore the influencing factors affecting the efficacy of aromatherapy on the aforementioned outcomes: anxiety. Methods: A comprehensive search strategy was developed to source for relevant studies across 6 databases. This review included mostly RCTs with the exception of 2 quasi-experimental studies. Eligible studies were assessed for risk of bias and outcomes were appraised for their overall quality of evidence. Results: Eight studies (nine arms) with a total of 685 participants were included in this review. Seven out of eight studies presented with low risk of bias. Aromatherapy significantly alleviated anxiety experienced among preoperative patients [d = 0.56; 95% confidence interval (CI):-0.92 to -0.20; p = 0.002] and significantly reduced MAP (p < 0.05) and HR (p <0.05). Conclusion/Implications: This review concluded that aromatherapy is effective in alleviating preoperative anxiety in most social settings, with citrus and lavender having the most anxiolytic effect. However, due to limitations like considerable heterogeneity and small sample sizes in most studies, findings should be interpreted with caution. The review also determined aromatherapy is effective in reducing MAP and HR. However, in view of the limited studies on MAP and HR, future research is recommended.
URI: https://scholarbank.nus.edu.sg/handle/10635/154113
Appears in Collections:Bachelor's Theses

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