This study evaluates the effect of virtual reality technology alleviates the acute pain of scar treatment with fractional laser under local anesthesia

Fractional laser surgery under local anesthesia will accompany by the pain and anxiety. It's a bad experience for the patients. The effect of Virtual Reality (virtual reality, VR) to alleviate pain and anxiety of fractional laser treatment of scar is still not studied. Virtual reality technology is an important direction of simulation technology. Including the computer graphics technology, human-computer interface technology, multimedia technology, sensor technology, network technology and other collection technology. Usually generated by a real-time 3D animation of the computer system, a location tracker data. The handle and the head mounted display technology is commonly used in a variety of clinical invasive procedures, such as debridement and burn patients physical therapy, dental pain, injection pain, chronic itching. Previous study shows that VR as a distraction therapy, compared to the traditional methods ,for example watching video and listening to music, has stronger individual initiative and human-computer interaction, it shows a stronger analgesic effect.

HTC Vive is a VR headset, jointly developed by HTC company and Valve company. This equipment could improve the virtual reality experience and bring obvious analgesic effect. There are reasons to believe that HTC Vive could bring the best immersion experience and could be obviously decrease pain and anxiety of scar treatment with fractional laser under local anesthesia.

This study was conducted at department of burn, Changhai hospital, and all operations completed by experienced surgeons (researcher).

This study is a prospective randomized controlled study. A group of patients wear a blindfold and the other group treated with VR equipment (HTC Vive) after localized anesthesia with standard lidocaine cream. Finally, the differences of pain score,anxiety score, physiological indicators and satisfaction between two groups are compared. This study could provide a safe and non-drug intervention measure for patients receive fractional laser treatment under local anesthesia.

Inclusion Criteria:

1. Male or non-pregnant women between the ages of 18 and 60；
2. The scar site to be treated is located outside the head and face, scar area ≥ 0.5% total body surface area (TBSA)；
3. All patients should be sign information.

Exclusion Criteria:

1. Poor physical condition before operative, it is estimated that can't tolerate local anesthesia surgery；
2. Associated with malignant tumors, all kinds of heart disease history, hypertensive patients;
3. Patients with mental illness, alcohol-dependent patients, post-traumatic stress disorder, drug abuse history, and drug addicts; patients with pregnancy; lidocaine cream allergies;
4. Patients can't tolerate VR experience or participate in other clinical trials；
5. Unable or unwilling to comply with research programs.

Open Label