Seifi Zahra, Beikmoradi Ali, Oshvandi Khodayar, Poorolajal Jalal, Araghchian Malihe, Safiaryan Reza
Master of Science Critical Care Nursing, Larestan School of Medical Science, Larestan, Iran.
Chronic Diseases (Home Care) Research Center Hamadan University of Medical Sciences, Hamadan, Iran.
Iran J Nurs Midwifery Res. 2014 Nov;19(6):574-80.
Open heart surgery can cause high levels of anxiety in patients. Nowadays, lavender essential oil is widely used in medical research. This study was conducted with an aim to investigate the effects of lavender essential oil to reduce the anxiety of patients after coronary artery bypass surgery.
This research is double-blinded randomized controlled trial on 60 patients who had undergone coronary artery bypass surgery in a 2-day intervention targeting reduction of anxiety. This study was conducted in Ekbatan Therapeutic and Educational Center, Hamadan city, Iran, in 2013. The patients in the inhalation aromatherapy group inhaled two drops of 2% lavender essential oil and those in the control group inhaled two drops of distilled water as placebo for 20 min on the 2(nd) and 3(rd) days after surgery. The level of anxiety was evaluated by Spielberger's State Anxiety questionnaire before and after intervention and the vital signs were documented as well. Data were analyzed using Stata 11 (Stata Corp., College Station, TX, USA) by independent t-test for continuous variables and Chi-square test for categorical variables.
The mean score of anxiety in the aromatherapy group was 48.73 ± 5.08 and in the control group was 48 ± 6.98 before the intervention (P = 0.64), which reduced after the intervention to 42.6 ± 5.44 and 42.73 ± 7.30, respectively. On the 3(rd) day after surgery, the mean score of anxiety in the aromatherapy group was 46.76 ± 4.07 and in the control group was 46.53 ± 7.05 before the intervention, which reduced to 41.33 ± 3.65 and 41.56 ± 6.18, respectively, after the intervention. However, there was no statistically significant difference in the mean scores of anxiety between the aromatherapy and control groups.
Lavender essential oil has no significant effect on anxiety in patients after coronary artery bypass surgery, although it decreased the level of anxiety in the patients.
心脏直视手术可使患者产生高度焦虑。如今，薰衣草精油在医学研究中被广泛应用。本研究旨在探讨薰衣草精油对降低冠状动脉搭桥术后患者焦虑的作用。
本研究为双盲随机对照试验，对60例接受冠状动脉搭桥手术的患者进行了为期2天的干预，旨在减轻焦虑。本研究于2013年在伊朗哈马丹市的埃克巴坦治疗与教育中心开展。吸入芳香疗法组的患者在术后第2天和第3天吸入两滴2%的薰衣草精油，对照组患者吸入两滴蒸馏水作为安慰剂，持续20分钟。干预前后采用斯皮尔伯格状态焦虑问卷评估焦虑水平，并记录生命体征。使用Stata 11（美国德克萨斯州大学站的Stata公司）对连续变量进行独立t检验，对分类变量进行卡方检验来分析数据。
干预前，芳香疗法组的焦虑平均评分为48.73±5.08，对照组为48±6.98（P = 0.64），干预后分别降至42.6±5.44和42.73±7.30。术后第3天，干预前芳香疗法组的焦虑平均评分为46.76±4.07，对照组为46.53±7.05，干预后分别降至41.33±3.65和41.56±6.18。然而，芳香疗法组和对照组的焦虑平均评分之间无统计学显著差异。
薰衣草精油对冠状动脉搭桥术后患者的焦虑无显著影响，尽管它降低了患者的焦虑水平。
