The Effect of Aromatherapy on Delirium in Critically Elderly Patients Undergoing Fracture Surgery

The American Nurses Association has defined delirium as "acute, serious, and often preventable conditions that are usually accompanied by confusion, dehydration, or attacks on some system followed by confusion and a distressing course of life". The incidence of delirium in the postoperative period is quite high and delirium has been associated with longer intensive care unit or hospital stays, higher hospital costs, and increased mortality. Delirium is especially risky in elderly and critically ill patients. Although postoperative delirium is tried to be treated using medication, nonpharmacological prevention methods are considered the most important part of the treatment. One of these methods is aromatherapy and has recently been widely used in nursing research. The smell of waste caused by patients' sweating, urinary and fecal incontinence, bleeding, and antiseptics such as povidone iodide, chlorhexidine, alcohol, and other drugs used during the treatment process creates a hospital-specific odor. Hospital odor is also associated with poor perception of treatment and care. It is thought that it would be beneficial to put an aromatic essential oil such as lavender oil in the environment. The positive effects of aromatherapy with lavender oil on anxiety, stress, pain, sleep quality, nausea and vomiting, as well as its sedative, emotionally calming, antiseptic, analgesic and antispasmodic properties have been demonstrated by studies. Essential oils are considered safe to use because they have minimal side effects. Postoperative delirium is a common complication following hip fracture surgery in the elderly. It has been observed that studies on the development of delirium in the intensive care unit were mostly conducted with patients who underwent cardiovascular surgery. This study will be carried out to determine how lavender oil aromatherapy left in the environment to prevent delirium, which can have serious consequences in the elderly with postoperative fractures, affects delirium scores.