Wartime Stress, Pollution and Care Disruption May Destabilize Childhood Asthma

Children with asthma who live through armed conflict face a convergence of pressures that may act together to worsen their disease control, according to a narrative review published in Allergy, Asthma & Clinical Immunology. The review, led by Oksana Boyarchuk and colleagues, synthesizes existing evidence on the psychological, environmental and healthcare-related mechanisms that could contribute to loss of asthma control in children exposed to war, and outlines what this might mean for clinical management in humanitarian settings.

The authors searched PubMed/MEDLINE, Scopus, Web of Science, Google Scholar and the Vernadsky National Library of Ukraine, integrating conflict-related asthma studies with mechanistic research on psychoneuroimmunology, environmental health and pediatric asthma, alongside current international clinical guidelines. Because this is a targeted narrative review rather than a prospective study, it does not measure how often asthma control is lost during wartime or quantify the contribution of any single factor; instead, it assembles plausible interacting mechanisms that the authors argue warrant further investigation.

The synthesis suggests that asthma destabilization during armed conflict is multifactorial. Chronic psychological stress may alter signaling along the brain–lung axis, contributing to neuroimmune dysregulation and reduced glucocorticoid responsiveness, a change that could blunt the effectiveness of the corticosteroids on which asthma therapy depends. At the same time, exposure to particulate air pollution, combustion products, indoor dampness and shelter-associated allergens may amplify airway inflammation. These exposures are not independent: families displaced into crowded shelters may face higher allergen and irritant loads precisely when stress biology is most disturbed, creating what the authors describe as synergistic effects on susceptible children.

Beyond biology and environment, the review highlights disruptions to care itself. Healthcare system breakdown, forced displacement and family disorganization may reduce treatment adherence and interrupt continuity of care, so that children who would otherwise be stable on controller medication lose access to it. The combination of heightened inflammatory triggers and weakened treatment continuity may together contribute to poorer asthma control and increased exacerbation risk, although the review emphasizes that the relative weight of each mechanism remains unclear.

On the management side, the authors conclude that current evidence supports a multidimensional model in which psychological, environmental and healthcare-related factors interact to influence asthma outcomes during armed conflicts. They recommend that asthma care in humanitarian settings prioritize continuity of inhaled corticosteroid-containing therapy in line with contemporary international guidelines, individualized asthma action plans, objective monitoring whenever feasible, and integration of psychological support into comprehensive pediatric asthma care. These recommendations are framed as implications drawn from the synthesized evidence rather than as findings from a controlled trial of interventions in conflict zones.

The authors are explicit about the limits of the evidence base. Because the underlying studies were investigated largely individually, the integrated pathophysiological interactions among stress, pollution and care disruption had not previously been comprehensively synthesized, and the review itself calls for further prospective studies to clarify the relative contribution of each mechanism and to strengthen the evidence for clinical recommendations. Until such studies are available, the review’s main contribution is a framework: wartime asthma risk in children should be understood as the product of interacting triggers rather than any single exposure, a perspective the authors argue should shape both research design and frontline pediatric practice in conflict-affected regions.

Subject of Research: Mechanisms that may contribute to loss of asthma control in children exposed to armed conflict

Article Title: Synergism of triggers for loss of asthma control in children during wartime

Article References: Boyarchuk, O., Chornomydz, I., Uska, V., & Chornomydz, A. (2026). Synergism of triggers for loss of asthma control in children during wartime. Allergy, Asthma & Clinical Immunology. https://doi.org/10.1186/s13223-026-01060-y

Image Credits: AI Generated

DOI: 10.1186/s13223-026-01060-y

Keywords: pediatric asthma, armed conflict, psychoneuroimmunology, air pollution, healthcare disruption, narrative review, asthma control, inhaled corticosteroids, humanitarian settings, brain-lung axis, Synergism, triggers