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Virtual Reality Technology for Vasectomy Pain Modulation

Modulating Intraoperative Vasectomy Pain Using the SmileyScope Virtual Reality Interface

Status
Terminated
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05591274
Enrollment
120
Registered
2022-10-24
Start date
2022-11-17
Completion date
2024-03-28
Last updated
2024-12-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Anxiety Postoperative, Pain, Postoperative, Vasectomy

Brief summary

This study will evaluate whether or not wearing a virtual reality (VR) headset reduces pain and anxiety in patients undergoing vasectomy. The headset being used is the SmileyScope virtual reality interface, a device already undergoing study for approval by the U.S. Food and Drug Administration (FDA) to reduce pain and anxiety in patients aged 4 years and older undergoing needle blood draw or injection procedures. In this study, the SmileyScope virtual reality interface is considered an investigational device because it is not yet approved for use in adult males undergoing vasectomy.

Detailed description

Vasectomy is a safe and effective procedure for permanent sterilization in males. More than 500,000 vasectomies are performed annually in the United States, and that number is expected to grow rapidly in the coming years. The procedure is safe and can be quickly performed in an outpatient setting. Complications of vasectomy are rare, and can include hematoma and infection, spermatic granulomas, and post-vasectomy pain syndrome in rare cases. Like all outpatient surgical procedures where the patient is not under general anesthesia, vasectomies involve intraoperative and immediate post-operative pain. While use of the no-scalpel technique and local anesthetic reduces intraoperative pain, expected operative pain is still one of the main reasons patients cite for not undergoing the procedure. In our current study, the investigators aim to further modulate intraoperative pain using virtual reality goggles. In clinical trials, the SmileyScope device has been shown to reduce procedural pain in the pediatric population during venipuncture or intravenous cannulation. Results from those studies showed a statistically significant reduction in pain during intravenous procedures in the emergency department. This VR headset is undergoing study for approval by the U.S. Food and Drug Administration (FDA) to reduce pain and anxiety in patients aged 4 years and older undergoing needle blood draw or injection procedures. Currently, this device has been granted entrance to the FDA Safer Technologies Program. In this study, the SmileyScope virtual reality interface is considered an investigational device because it is not yet approved for use in adult males undergoing vasectomy. The aim of this study is to investigate whether this same virtual reality modality can be utilized to reduce pain during vasectomies.

Interventions

DEVICESmileyScope Virtual Reality Headset

The SmileyScope Virtual Reality Headset is a VR headset undergoing study for approval by the U.S. Food and Drug Administration (FDA) to reduce pain and anxiety in patients aged 4 years and older undergoing needle blood draw or injection procedures. Currently, this device has been granted entrance to the FDA Safer Technologies Program. The device comes pre-loaded with either an interactive or static virtual reality scenario.

Sponsors

University of Miami
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Masking description

Patients will be randomized into one of three groups (interactive virtual reality, static virtual reality, and no virtual reality). Randomization sequence will be generated using a validated random number generator, and allocation concealment will be achieved via opaque envelope. Treatment (vasectomy with interactive VR, vasectomy with static VR, or vasectomy with no VR) will be known to patient and care provider only once the vasectomy procedure begins.

Intervention model description

Patients will be randomized into one of three groups (interactive virtual reality, static virtual reality, and no virtual reality).

Eligibility

Sex/Gender
MALE
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Adult males 18 years or older who are undergoing elective vasectomy

Exclusion criteria

* Have a serious comorbid illness or condition that, in the opinion of the investigator, may compromise the safety or compliance of the subject or preclude successful completion of the study * History of chronic pain disorder or chronic narcotic use * Significant refractive error, unilateral blindness, epilepsy, or other conditions such as skin infections, cancer, etc. which could compromise the physical function of the headset.

Design outcomes

Primary

MeasureTime frameDescription
Pre-operative Anxietyup to 1 dayAnxiety will be measured via the State-Trait Anxiety Inventory (STAI) anxiety score \[Range 20-80; 20 = low anxiety, 80 = high anxiety\]
Post-operative Anxietyup to 1 dayAnxiety will be measured via the State-Trait Anxiety Inventory (STAI) anxiety score \[Range 20-80; 20 = low anxiety, 80 = high anxiety\]
Subjective Pre-operative Painup to 1 dayPain will be measured via numeric Likert pain scale \[0-10; 0 = no pain, 10 = highest pain\]
Subjective Post-operative Painup to 1 dayPain will be measured via numeric Likert pain scale; compared to baseline pain scale in pre-operative period \[0-10; 0 = no pain, 10 = highest pain\]
Post-procedure Satisfactionup to 1 daySatisfaction will be measured via a questionnaire scored by Likert scale. Questionnaire will ask: How satisfied were you with today's procedure, with 0 being not satisfied at all, and 10 being the most satisfied? How helpful was VR in managing your vasectomy today (0 is least helpful, 10 is most helpful)

Secondary

MeasureTime frameDescription
Physiological Intra-operative Heart Rateup to 1 dayHeart rate will be measured intra-operatively using a FitBit Versa 3 device worn on the patient's wrist.
Physiological Post-operative Skin Temperatureup to 1 daySkin temperature will be measured post-operatively using a FitBit Versa 3 device worn on the patient's wrist.
Physiological Intra-operative Oxygen Saturationup to 1 dayOxygen saturation will be measured intra-operatively using a FitBit Versa 3 device worn on the patient's wrist.
Physiological Intra-operative Skin Temperatureup to 1 daySkin temperature will be measured intra-operatively using a FitBit Versa 3 device worn on the patient's wrist.
Physiological Post-operative Heart Rateup to 1 dayHeart rate will be measured post-operatively using a FitBit Versa 3 device worn on the patient's wrist.
Physiological Post-operative Oxygen Saturationup to 1 dayOxygen saturation will be measured post-operatively using a FitBit Versa 3 device worn on the patient's wrist.

Countries

United States

Participant flow

Participants by arm

ArmCount
Interactive VR
Patients will be wearing a virtual reality headset preloaded with an interactive VR scenario. SmileyScope Virtual Reality Headset: The SmileyScope Virtual Reality Headset is a VR headset undergoing study for approval by the U.S. Food and Drug Administration (FDA) to reduce pain and anxiety in patients aged 4 years and older undergoing needle blood draw or injection procedures. Currently, this device has been granted entrance to the FDA Safer Technologies Program. The device comes pre-loaded with either an interactive or static virtual reality scenario.
40
Static VR
Patients will be wearing a virtual reality headset preloaded with a static, non-interactive VR scenario. SmileyScope Virtual Reality Headset: The SmileyScope Virtual Reality Headset is a VR headset undergoing study for approval by the U.S. Food and Drug Administration (FDA) to reduce pain and anxiety in patients aged 4 years and older undergoing needle blood draw or injection procedures. Currently, this device has been granted entrance to the FDA Safer Technologies Program. The device comes pre-loaded with either an interactive or static virtual reality scenario.
40
Control
Patients will not be wearing any virtual reality headset.
40
Total120

Baseline characteristics

CharacteristicInteractive VRStatic VRControlTotal
Age, Continuous39.33 years
STANDARD_DEVIATION 7.32
40.58 years
STANDARD_DEVIATION 4.92
40.13 years
STANDARD_DEVIATION 4.72
40.01 years
STANDARD_DEVIATION 5.75
Ethnicity (NIH/OMB)
Hispanic or Latino
28 Participants25 Participants23 Participants76 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
10 Participants15 Participants16 Participants41 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
2 Participants0 Participants1 Participants3 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants1 Participants1 Participants2 Participants
Race (NIH/OMB)
Black or African American
2 Participants4 Participants5 Participants11 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants3 Participants3 Participants8 Participants
Race (NIH/OMB)
White
36 Participants32 Participants31 Participants99 Participants
Sex: Female, Male
Female
0 Participants0 Participants0 Participants0 Participants
Sex: Female, Male
Male
40 Participants40 Participants40 Participants120 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 400 / 400 / 40
other
Total, other adverse events
0 / 401 / 400 / 40
serious
Total, serious adverse events
0 / 400 / 400 / 40

Outcome results

Primary

Post-operative Anxiety

Anxiety will be measured via the State-Trait Anxiety Inventory (STAI) anxiety score \[Range 20-80; 20 = low anxiety, 80 = high anxiety\]

Time frame: up to 1 day

ArmMeasureValue (MEDIAN)
Interactive VRPost-operative Anxiety14.5 score on a scale
Static VRPost-operative Anxiety14 score on a scale
ControlPost-operative Anxiety15 score on a scale
Primary

Post-procedure Satisfaction

Satisfaction will be measured via a questionnaire scored by Likert scale. Questionnaire will ask: How satisfied were you with today's procedure, with 0 being not satisfied at all, and 10 being the most satisfied? How helpful was VR in managing your vasectomy today (0 is least helpful, 10 is most helpful)

Time frame: up to 1 day

Population: Only Participants randomized to one of the two VR arms were asked to complete the post procedure satisfaction survey

ArmMeasureGroupValue (MEAN)Dispersion
Interactive VRPost-procedure SatisfactionHow satisfied were you with today's procedure? (0 not satisfied at all; 10 most satisfied)4.86 score on a scaleStandard Deviation 0.42
Interactive VRPost-procedure SatisfactionHow helpful was VR in managing your vasectomy today? (0 least helpful, 10 most helpful)3.92 score on a scaleStandard Deviation 1.3
Static VRPost-procedure SatisfactionHow satisfied were you with today's procedure? (0 not satisfied at all; 10 most satisfied)4.92 score on a scaleStandard Deviation 0.28
Static VRPost-procedure SatisfactionHow helpful was VR in managing your vasectomy today? (0 least helpful, 10 most helpful)4.06 score on a scaleStandard Deviation 1.04
ControlPost-procedure SatisfactionHow satisfied were you with today's procedure? (0 not satisfied at all; 10 most satisfied)4.61 score on a scaleStandard Deviation 1.02
Primary

Pre-operative Anxiety

Anxiety will be measured via the State-Trait Anxiety Inventory (STAI) anxiety score \[Range 20-80; 20 = low anxiety, 80 = high anxiety\]

Time frame: up to 1 day

ArmMeasureValue (MEDIAN)
Interactive VRPre-operative Anxiety14 score on a scale
Static VRPre-operative Anxiety13.5 score on a scale
ControlPre-operative Anxiety14 score on a scale
Primary

Subjective Post-operative Pain

Pain will be measured via numeric Likert pain scale; compared to baseline pain scale in pre-operative period \[0-10; 0 = no pain, 10 = highest pain\]

Time frame: up to 1 day

ArmMeasureValue (MEAN)Dispersion
Interactive VRSubjective Post-operative Pain2.875 score on a scaleStandard Deviation 1.571
Static VRSubjective Post-operative Pain2.447 score on a scaleStandard Deviation 1.554
ControlSubjective Post-operative Pain2.325 score on a scaleStandard Deviation 1.623
Primary

Subjective Pre-operative Pain

Pain will be measured via numeric Likert pain scale \[0-10; 0 = no pain, 10 = highest pain\]

Time frame: up to 1 day

ArmMeasureValue (MEAN)Dispersion
Interactive VRSubjective Pre-operative Pain0.05 score on a scaleStandard Deviation 0.32
Static VRSubjective Pre-operative Pain0 score on a scaleStandard Deviation 0
ControlSubjective Pre-operative Pain0.05 score on a scaleStandard Deviation 0.316
Secondary

Physiological Intra-operative Heart Rate

Heart rate will be measured intra-operatively using a FitBit Versa 3 device worn on the patient's wrist.

Time frame: up to 1 day

ArmMeasureValue (MEAN)Dispersion
Interactive VRPhysiological Intra-operative Heart Rate77.8 beats per minute (BPM)Standard Deviation 13.5
Static VRPhysiological Intra-operative Heart Rate75.2 beats per minute (BPM)Standard Deviation 10.9
ControlPhysiological Intra-operative Heart Rate77.2 beats per minute (BPM)Standard Deviation 12.1
Secondary

Physiological Intra-operative Oxygen Saturation

Oxygen saturation will be measured intra-operatively using a FitBit Versa 3 device worn on the patient's wrist.

Time frame: up to 1 day

Population: Data was not collected due to an oversight in the study design. All vital sign parameters were planned to be collected via FitBit Versa 8. However, once the research team realized it was not possible to capture oxygen saturation and temperature with this device, the protocol should have been amended. A Note-to-File was created to document this protocol deviation.

Secondary

Physiological Intra-operative Skin Temperature

Skin temperature will be measured intra-operatively using a FitBit Versa 3 device worn on the patient's wrist.

Time frame: up to 1 day

Population: Data was not collected due to an oversight in the study design. All vital sign parameters were planned to be collected via FitBit Versa 8. However, once the research team realized it was not possible to capture oxygen saturation and temperature with this device, the protocol should have been amended. A Note-to-File was created to document this protocol deviation.

Secondary

Physiological Post-operative Heart Rate

Heart rate will be measured post-operatively using a FitBit Versa 3 device worn on the patient's wrist.

Time frame: up to 1 day

ArmMeasureValue (MEAN)Dispersion
Interactive VRPhysiological Post-operative Heart Rate75.9 beats per minute (BPM)Standard Deviation 12.2
Static VRPhysiological Post-operative Heart Rate75.9 beats per minute (BPM)Standard Deviation 12.2
ControlPhysiological Post-operative Heart Rate75.1 beats per minute (BPM)Standard Deviation 13.9
Secondary

Physiological Post-operative Oxygen Saturation

Oxygen saturation will be measured post-operatively using a FitBit Versa 3 device worn on the patient's wrist.

Time frame: up to 1 day

Population: Data was not collected due to an oversight in the study design. All vital sign parameters were planned to be collected via FitBit Versa 8. However, once the research team realized it was not possible to capture oxygen saturation and temperature with this device, the protocol should have been amended. A Note-to-File was created to document this protocol deviation.

Secondary

Physiological Post-operative Skin Temperature

Skin temperature will be measured post-operatively using a FitBit Versa 3 device worn on the patient's wrist.

Time frame: up to 1 day

Population: Data was not collected due to an oversight in the study design. All vital sign parameters were planned to be collected via FitBit Versa 8. However, once the research team realized it was not possible to capture oxygen saturation and temperature with this device, the protocol should have been amended. A Note-to-File was created to document this protocol deviation.

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026