Virtual Reality and Olfactory Stimuli Multimodal Intervention to Reduce Post-Operative Pain and Anxiety in Patients Undergoing Cardiothoracic Surgery

Summary

Patients who undergo cardiothoracic surgery often experience pain and anxiety around the time of surgery. Currently, treatments for pain and anxiety around the time of surgery include opioids and benzodiazepines, which can have severe side effects and can be ineffective. Interventions combining virtual reality with olfactory stimuli are a promising alternative to opioids and benzodiazepines in the treatment of pain and anxiety around the time of surgery.

The aim of this study is to evaluate the feasibility of a virtual reality and olfactory stimuli multimodal intervention in patients undergoing cardiothoracic surgery. In addition, the investigators will evaluate the preliminary effects of the VR/OS intervention on patient pain and anxiety before and after cardiothoracic surgery. Patients who meet study inclusion criteria and are undergoing cardiothoracic surgery may participate in this study. Patients have an equal being assigned to undergo the virtual reality and olfactory stimuli intervention or continue getting usual medical care with their doctor. If the patient is assigned to receive the virtual reality and olfactory stimuli intervention, the first therapy session will take place approximately two to four weeks before surgery. This will involve wearing a virtual reality headset and scented necklace for approximately 10 minutes. The second session will occur 90 minutes before the surgery. Additionally, for each day the patient recovers in the hospital after surgery, the patient will receive one session in the afternoon. During the patient's in-hospital recovery at night, they will receive lavender scented therapy.

Conditions

• Postoperative Pain
• Anxiety Postoperative
• Opioid Use

Interventions

DEVICE

Virtual Realty using a Microsoft Hololens, Empatica HR wristband, and EEG

The investigators will use a DeepReality VR with biofeedback using a Microsoft Hololens, Empatica HR wristband and EEG. The Empatica HR wristband will measure HR and the EEG will measure alpha and theta brain waves. To monitor the physiologic data in real-time, data from the EEG and heart rate monitor will be streamed and processed in an Android Application that the investigators previously developed. During data collection, the Android app sends data via OSC to a specific IP and port, which is then collected in the game engine, Unity 3D and processed to adapt the virtual environment. Importantly, each device is inexpensive and can be sanitized and reused by multiple patients.

DEVICE

Essence Olfactory Necklace

The Essence Olfactory Necklace holds a small, lightweight 7 ml capsule that contains an essential oil. Within the capsule is a piezo electric transducer which allows us to control the release of scent via Bluetooth using a smartphone app. Each Essence Necklace will be paired with a google phone that the investigators will use to control the frequency and intensity of scent for each patient. The investigators will limit the frequency to one burst of scent every 20 seconds to avoid habituation. For the scent, the investigators will use diluted lavender essential oil (10% essential oil: 90% water). The investigators chose lavender because in our previous studies, \>97% of users enjoyed the lavender scent. The Essence Necklace is powered with a 3.7V Lithium Battery and has a battery lifetime of approximately 6 hours. The RC can easily recharge the Essence Necklace through a USB micro connector. Additionally, the Essence Necklace can be easily sanitized and reused by multiple patients.

DEVICE

Bedside Olfaction Device

The bedside olfaction device can be clipped on to the side of the patient's bed or beside table. The RC will turn on the night-time olfactory device at 7 pm and will turn off the device at 7 am. When turned on, the device releases scent once every 60 seconds. However, the frequency and intensity of the scent will be adjusted to the patient's preferences. For the scent, the investigators will use diluted lavender essential oil (10% essential oil: 90% water).

Sponsors & Collaborators

• Massachusetts General Hospital

  lead OTHER

Study Design

Allocation

RANDOMIZED

Purpose

SUPPORTIVE_CARE

Masking

NONE

Model

PARALLEL

Eligibility

Min Age

18 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2022-10-01

Primary Completion

2028-05-31

Completion

2028-06-30

FDA Device

Yes

Countries

• United States

Study Locations