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Background   Conscious patients admitted to intensive care units (ICU) suffer from anxiety and agitation for various reasons, which can affect their recovery processes.Aims   To compare the effects of lavender and Citrus aurantium essential oils on anxiety and agitation of conscious patients admitted to ICUs.Design   A randomized parallel placebo-controlled trial.Methods   One hundred and fifty conscious patients admitted to ICUs were selected by convenience sampling and were randomly divided into three groups, groups of lavender aromatherapy and Citrus aurantium aromatherapy, in addition to the routine care and inhalation of five drops of lavender or Citrus aurantium essential oils for 30 minutes. The placebo group, in addition to routine care, was provided with 5 drops of normal saline for 30 minutes. Anxiety was assessed with the state subscale of State-Trait Anxiety Inventory, and agitation was examined with Richmond Agitation-Sedation Scale before, immediately, one hour, and three hours after the intervention.Results   All three groups suffered from relatively severe state anxiety before the intervention. The level of anxiety in the lavender and Citrus aurantium groups was significantly lower than that of the placebo group immediately and three hours after the intervention ( P  < 0.05). No significant difference was observed between the two groups of lavender and Citrus aurantium. The majority of the samples in all three groups were agitated before the intervention, but agitation of all three groups decreased after the intervention. Restless/agitation reduced significantly in all three groups. Although restless/agitation of the lavender and Citrus aurantium groups reduced more than that of the placebo, no significant difference was found between the three groups.Conclusion   The results of the present study showed the positive effects of lavender aromatherapy and Citrus aurantium aromatherapy on reducing the anxiety of patients admitted to ICUs.  Relevance to Clinical Practice . Aromatherapy can be used as an effective and safe intervention to reduce anxiety in ICUs.

biomed research international

The Effects of Lavender and Citrus aurantium on Anxiety and Agitation of the Conscious Patients in Intensive Care Units: A Parallel Randomized Placebo-Controlled Trial