Psychological effects of aromatherapy on chronic hemodialysis patients

Effects of aromatherapy (odorless condition, lavender, and hiba oil) on moo d and anxiety were investigated in 14 female patients who were being treate d with chronic hemodialysis. A control period consisting of natural hospita l smells was established before each test session, and then aromatic test c onditions were systematically evaluated for odorless conditions as well as aromatic conditions containing lavender and hiba oil aromas. The effects of aromatherapy were measured using the Hamilton rating scale for depression (HAMD) and the Hamilton rating scale for anxiety (HAMA). Hiba oil aroma sig nificantly decreased the mean scores of HAMD and HAMA, and lavender aroma s ignificantly decreased the mean scores of HAMA. The mean scores of HAMD and HAMA in an odorless condition were not significantly different from those of the control conditions. These results indicate that in chronic hemodialy sis patients hiba oil is an effective, non-invasive means for the treatment of depression and anxiety, and that lavender alleviates anxiety.