Children undergoing cancer treatment face repeated, prolonged hospitalisations carrying substantial risks of psychological distress, social isolation, and impaired development. Volunteers offering structured non-medical activities are widely employed to complement professional psychosocial care in paediatric oncology settings, yet empirical evidence examining their role specifically—as distinct from professionally delivered psychosocial interventions—remains sparse. This narrative review, conducted in accordance with SANRA criteria and drawing on a structured search of PubMed, PsycINFO, and Google Scholar (2000–2025), supplemented by a targeted verification search in July 2026, synthesises the theoretical and preliminary empirical basis for volunteer involvement, critically evaluates associated clinical risks, and proposes evidence-informed recommendations for paediatric oncology clinical practice. Three theoretical frameworks provide the conceptual grounding for volunteer activities: developmental psychological models (Piaget; Erikson), stress and coping theory (Lazarus and Folkman), and the biopsychosocial model (Engel). Indirect empirical evidence—derived predominantly from professionally delivered interventions—supports short-term benefits of structured distraction, play, and social activities on procedural anxiety, pain experience, and sense of social inclusion; the sole study examining volunteer-facilitated activities specifically in paediatric oncology reported meaningful reductions in distress and high family satisfaction. Eight categories of clinical risk are identified, including physical and psychological overload, erosion of child autonomy, suppression of authentic emotional expression, and inadequate coordination with healthcare staff. Six practice recommendations are proposed, centred on a working definition of the volunteer role, mandatory pre-access training, genuine individualisation including cultural adaptation, multidisciplinary-team-led coordination, and structured programme evaluation. Volunteer involvement can meaningfully complement professional psychosocial care when delivered within a structured, supervised, and multidisciplinary-team-coordinated framework. The paediatric oncology team occupies a pivotal role in realising the potential benefits while safeguarding children from associated risks. Prospective research employing standardised volunteer programme definitions and validated child-reported outcome measures is urgently needed to build an evidence base commensurate with the clinical importance of this practice.
Hausmeister et al. (Wed,) studied this question.