Virtual Reality Intervention on Anxiety and Pain Among Adult Patients Ubdergoing an Awake Minor Suture: A Pilot Randomized Controlled Trial

Suturing is one of the most common procedure in the emergency department, however, it often provokes anxiety and pain. 1-2 Failure to manage patients' anxiety and pain during wound closure can cause difficulties for health care providers to complete the procedures and reduce the success rates. 3 Experience of anxiety and pain may also increase the need for medication, reduce patients' satisfaction rate and cause negative physiological parameters such as increased blood pressure and heart rate. 4-5.

Traditionally, nonpharmacological intervention such as listening to music, chatting, and guided imagery is applied to reduce patient's anxiety and pain. However these measures fail to provide patients with significant distraction because patients would inevitably see the procedure that causes considerable distress during the procedure. Thus, the development of further strategies to provide a significant distraction to alleviate patients' anxiety and pain during suturing is warranted.

With advanced technologies, virtual reality (VR) provides significant distraction. Clinical trials indicate that use of VR achieved a statistically significant decrease in anxiety and pain in different operations such as hand 6, lipoma incision 7, Gynecology 8, and debridement 9. However, only a handful of studies conducted among adult patient with ambulatory laceration repairing examined the effectiveness of VR in anxiety and pain. To the best of our knowledge, no study specifically focus on the effects of VR on anxiety and pain in Chinese adult patients undergoing an awake suture in emergency room in Hong Kong. Eighty participants will be assigned to the experimental group or to the control group by randomization.

After written informed consent will be obtained from patients, the baseline data (T0) will be obtained from the participants including sociodemographic, anxiety, blood pressure, and pulse rate. Subsequently, randomization is conducted. Throughout the procedure (T1), the additional medication requirements and physiological parameters will be recorded. The anxiety, pain and satisfaction and physiological parameters will also be recorded after the procedure. Data will be analyzed using IBM SPSS 23.0. Descriptive statistics, including frequency, percentage, mean and standard deviation will be used to describe the data. Chi-square tests compare categorical variables, and independent t-tests compare continuous variables. Generalized Estimation Equation will be used to examine the effectiveness of the VR intervention versus the control group will be evaluated by comparing the study outcomes. Two-tailed tests will be used with a significant level of 0.05.