This is a plain English summary of an original research article
Virtual reality shows promise in helping to distract children from self-reported pain and anxiety during medical procedures. Younger children in particular may benefit from the intervention.
This review of seventeen trials looked at virtual reality interventions tested in trials with children receiving treatment for burns, dental and tumour related health needs, and during needle insertion for intravenous access. Results suggested a marked impact on pain and anxiety of children from these immersive distractions, but research was of mixed quality and individual trials were small.
Fear of medical interventions is a commonly recognised problem in children and can be very acute in younger children. Virtual reality as a distraction may offer a safe solution in counteracting this.
Why was this study needed?
Medical procedures commonly evoke pain and feelings of anxiety. The experience of pain can be further exacerbated by the fear of it. In children these feelings are often elevated leading to resistive behaviours towards healthcare. Poor engagement can result in less favourable health outcomes, and interventions to improve this are needed.
Distractions such as music, games and TV have been shown to reduce pain and anxiety in children effectively during medical procedures. Virtual reality can however offer a more immersive experience resulting in greater levels of distraction.
A number of individual studies have been published, but this is the first systematic review to bring the evidence on anxiety in children together. This study aimed to improve the evidence-base for children undergoing medical procedures.
What did this study do?
The review included seventeen recently conducted randomised controlled trials, with 859 participants who were age 21 years or younger.
The studies evaluated pain and anxiety levels whilst using virtual reality with children as a form of distraction during medical procedures. These were mostly in burns care but also included venous, dental, and tumour related care. All studies considered virtual reality in comparison with usual care although in many cases “usual” was not well described. This could include other distractions such as watching television or playing music to none at all.
Most trials were small and of mixed quality. Some aspects of this are unavoidable – it is impossible for children and staff to be unaware of whether they are using virtual reality devices or not. Differences in health conditions, medical procedures and virtual reality software limited the review to some extent due to the difficulty in combining results across such varied contexts.
What did it find?
- Virtual reality reduced patient-reported pain with a large effect compared with treatment as usual during medical procedures (standardised mean difference [SMD] 1.30, 95% confidence interval [CI] 0.68 to 1.91; 749 participants, 14 trials).
- Patient-reported anxiety was also likely to be reduced to a large extent by virtual reality, though reliability of this result is lower (SMD 1.32, 95% CI 0.21 to 2.44; 460 participants, 7 trials).
- The positive effect of virtual reality on reducing pain was also observed by caregivers (SMD 2.08, 95% CI 0.55 to 3.61) and health professionals (SMD 3.02, 95% CI 0.79 to 2.25).
- Virtual reality is potentially more effective in younger children than older children.
What does current guidance say on this issue?
Virtual reality is a relatively new development in healthcare and there are no national guidelines that focus on its use in distracting children from pain and anxiety during medical procedures. A general set of recommendations for best practice in the clinical implementation of virtual reality has recently been developed in the US, but at present there is nothing comparable in the UK.
The Royal College of Paediatrics and Child Health acknowledge virtual reality in some of its guidelines but not in the context of distraction. This may be a consideration for future guideline development.
What are the implications?
Interventions to divert a child’s attention away from stressful procedures can reduce levels of pain and anxiety. Virtual reality can distract the child more entirely than other methods by total immersion in another world, and is safe and simple to administer.
Virtual reality may, however, carry greater cost implications than other interventions and with adequate pain management distractions might not be necessary. Nevertheless, virtual reality provides a promising option that could reduce reliance on pain relieving drugs and improve the experience of difficult medical procedures, particularly for younger children.
The findings will be useful to paediatric healthcare practitioners and may also be helpful to parents and caregivers.
Citation and Funding
Eijlers R, Utens E, Staals LM et al. Systematic review and meta-analysis of virtual reality in pediatrics: effects on pain and anxiety. Anesth Analg. 2019; May 29. doi: 10.1213/ane.0000000000004165. [Epub ahead of print].
This research was funded by the Zilveren Kruis Foundation (a Dutch health insurance company) and the Coolsingel Foundation (a Rotterdam-based research grant funding body). The authors declare no conflicts of interest.
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