The study is one of several to highlight the occurrence of atopy and allergy following solid organ transplantation in children, Helen M. Evans, MBChB, wrote in an editorial accompanying the report by Marcus et al.
This report differed because it studied the differences in rates of atopy and allergy between transplanted solid organ groups. These occurred in 41% and 40% of liver and heart recipients, respectively, but in only 4% of kidney recipients. Atopy or allergy developed in 57% of multivisceral transplant patients, but the number of patients was very small (n = 7). The majority of the conditions developed within 1 year of transplantation.
The recent spike in these reports could signify better recognition of the problem or “the widespread switch of primary immunosuppression from cyclosporine to tacrolimus over the last few decades,” wrote Dr. Evans.
Most of these reports have been single-center retrospective studies, which are subject to inconsistent case definitions and recall bias, she noted. “The time is right for well-conducted multicenter prospective studies to better inform the true extent of these conditions after solid organ transplantation.”
In the meantime, transplantation centers should routinely track de novo eczema, allergy, and eosinophilic gastrointestinal disease in children being assessed for solid organ transplantation, and should take “rigorous” personal and family histories, said Dr. Evans. Ultimately, this work will help “minimize the risk of children developing these conditions” and “effectively treat them in the setting of immunosuppression after transplantation.”
Dr. Evans is a pediatric gastroenterologist at Starship Child Health in Aukland, New Zealand. She reported having no conflicts of interest. These comments summarize her editorial ( J Pediatr. 2018;196:10-11 ).
