IMPORTANCE: Preoperative anxiety is common among adult patients undergoing elective surgery and is associated with negative outcomes. Virtual reality (VR)–based interventions have been considered simpler, safer, and more effective for reducing anxiety in patients undergoing surgery than conventional care.OBJECTIVE: To examine the effectiveness of a VR-based intervention with preoperative education in reducing preoperative anxiety among adult patients undergoing elective surgery.DESIGN, SETTING, AND PARTICIPANTS: An assessor-blinded prospective randomized clinical trial was conducted to recruit adult patients aged 18 years or older who were scheduled for their first elective surgery procedure under general anesthesia within the next 2 to 4 weeks at a preanesthesia assessment clinic in Hong Kong from July to December 2022.INTERVENTIONS: Participants were randomly assigned to either an intervention group (an 8-minute immersive 360° VR video tour in the operating theater via a head-mounted display console) or a control group (standard care).MAIN OUTCOMES AND MEASURES: The primary outcome of preoperative anxiety was measured using the Amsterdam Preoperative Anxiety and Information Scale (range, 6-30; higher scores indicate greater anxiety), and the secondary outcomes (ie, stress, preparedness, and pain) were assessed by Visual Analog Scale at 3 time points: baseline at beginning of clinical session (T0), at the end of the clinical session immediately after the intervention (T1), and before the surgery (T2). Pain, satisfaction levels, and postoperative length of stay were evaluated after the surgery (T3). Simulation sickness was assessed after the intervention by use of the Simulation Sickness Questionnaire. A generalized estimating equations model was applied to compare changes in outcomes over time.RESULTS: A total of 74 participants (mean [SD] age, 46.34 [14.52] years; 38 men [51.4%] and 36 women [48.6%]) were recruited and randomized to the control group (37 participants) and intervention group (37 participants). Compared with the control group, the VR-based intervention group showed significantly decreased preoperative anxiety at T1 (β, −5.46; 95% CI, −7.60 to −3.32; P < .001) and T2 (β, −5.57; 95% CI, −7.73 to −3.41; P < .001), lower stress at T1 (β, −10.68; 95% CI, −16.00 to −5.36; P < .001) and T2 (β, −5.16; 95% CI, −9.87 to −0.45; P = .03), and higher preparedness at T1 (β, 6.60; 95% CI, 0.97 to 12.19; P = .02). Satisfaction levels were significantly increased in the intervention group vs the control group (mean [SD] score, 81.35 [9.24] vs 65.28 [8.16]; difference, 16.07; 95% CI, 12.00 to 20.15; P < .001). No significant differences in pain and postoperative length of stay were found.CONCLUSIONS AND RELEVANCE: The findings of this study suggest that a VR-based intervention is a feasible and effective way to reduce preoperative anxiety in adult patients undergoing elective surgery. Given the promising results of this study, further study in the form of large-scale, multicenter, randomized clinical trials with broader implementation is warranted.TRIAL REGISTRATION: Chinese Clinical Trial Registry Identifier: ChiCTR2100051690

Importance: Venipuncture is one of the most painful and distressing procedures experienced by pediatric patients. Emerging evidence suggests that providing procedural information and distraction using immersive virtual reality (IVR) may reduce pain and anxiety among children undergoing needle-related procedures.Objectives: To examine the effects of IVR on reducing the pain, anxiety, and stress experienced by pediatric patients undergoing venipuncture.Design, Setting, and Participants: This 2-group randomized clinical trial recruited pediatric patients aged 4 to 12 years undergoing venipuncture from a public hospital in Hong Kong between January 2019 and January 2020. Data were analyzed from March to May 2022.Interventions: Participants were randomly allocated to an intervention (an age-appropriate IVR intervention offering distraction and procedural information) or a control (standard care only) group.Main Outcomes and Measures: The primary outcome was child-reported pain. Secondary outcomes included child-reported anxiety, heart rate, salivary cortisol, length of procedure, and satisfaction of health care professionals with the procedure (rated on a 40 point scale, with higher scores indicating greater satisfaction). Outcomes were assessed 10 minutes before, during, immediately after, and 30 minutes after the procedure.Results: A total of 149 pediatric patients were recruited, with 86 female patients (57.7%) and 66 patients (44.3%) diagnosed with fever. Compared with the 74 participants in the control group (mean [SD] age, 7.21 [2.49] years), the 75 participants in the IVR group (mean [SD] age, 7.21 [2.43] years) reported significantly less pain (β = −0.78; 95% CI, −1.21 to −0.35; P < .001) and anxiety (β = −0.41; 95% CI, −0.76 to −0.05; P = .03) immediately after the intervention. Health care professional satisfaction in the IVR group (mean [SD] score, 34.5 [4.5]) was significantly higher than that in the control group (mean [SD] score, 32.9 [4.0]; P = .03). Moreover, the length of venipuncture procedure in the IVR group (mean [SD] duration, 4.43 [3.47] minutes) was significantly shorter than that in the control group (mean [SD] duration, 6.56 [7.39] minutes; P = .03).Conclusions and Relevance: In this randomized clinical trial, integrating procedural information and distraction in an IVR intervention for pediatric patients undergoing venipuncture significantly improved pain and anxiety in the IVR group compared with the control group. The results shed light on the global trends of research on IVR and its clinical development as an intervention for other painful and stressful medical procedures.Trial Registration: Chinese Clinical Trial Registry identifier: ChiCTR1800018817

Venipuncture is one of the most painful and distressing procedure experienced by pediatric patients. Evidence suggests that distraction combined with age-appropriate procedural information can effectively decrease procedural pain and anxiety in pediatric patients. Immersive virtual reality (IVR) can simultaneously provide complete distraction and procedural information to patients. Guided by the gate control theory and Lazarus and Folkman’s theory, this study aims to examine the effects of IVR intervention on reducing the pain, anxiety and stress, the duration of venipuncture, and the satisfaction of healthcare providers for the procedure. A randomized controlled trial with repeated assessments will be conducted. A total of 200 pediatric patients aged 4–12 years will be recruited from a regional public hospital and randomly assigned to either the intervention or control group. The study will use two age-appropriate IVR modules that consist of procedural information. The intervention group will receive IVR intervention, whereas the control group will receive standard care only. The cost-effectiveness of IVR intervention will be compared with that of standard care. Outcome evaluation will be conducted at four time points: 10 min before, during, immediately after, and 30 min after the procedure. Intention to treat and generalized estimating equation model will be used to analyze the data. This study is the first of its kind to adopt IVR intervention with age-appropriate procedural information for pediatric patients undergoing venipuncture. Findings of the proposed study may: (1) provide a novel, facile, and cost-effective intervention that can be used virtually at any time and place to manage pain and anxiety; and (2) shed light on the global trends of research and clinical development of IVR as an intervention for other painful and stressful medical procedures. Chinese Clinical Trial Registry, ChiCTR1800018817 . Registered on 11 October 2018.

Primary dysmenorrhoea is common in girls who have begun menstruating. However, few studies have examined its effect on the quality of life of a young population. The study aimed to evaluate the quality of life of adolescent girls with dysmenorrhoea in Hong Kong. The study adopted a cross-sectional descriptive approach. A convenience sample of 653 girls aged 13 to 19 years old was recruited from three secondary schools in Hong Kong. The 36-item Short-Form Health Survey was used to examine the health-related quality of life of the participants. The severity of dysmenorrhoea was assessed using a 10-point visual analog scale. Girls suffering from dysmenorrhoea reported high pain prevalence and intensity. However, the majority of girls with dysmenorrhoea did not seek medical advice (93.2%) or self-medicate (82%). The role-physical, bodily pain, general health and social functioning domain scores of girls with dysmenorrhoea were significantly lower than those without dysmenorrhoea. Moreover, girls with severe dysmenorrhoea had a significantly lower quality of life in the bodily pain domain than those with mild and moderate forms of condition. Findings suggest that dysmenorrhoea is highly prevalent among adolescent girls in Hong Kong. Girls may suffer severe pain, which degrades their quality of life.