The impact of cognitive delay on pediatric heart transplant outcomes.

The presence of CD may be viewed as a relative contraindication to transplantation; however, its impact on pediatric HTx outcomes is poorly characterized. The aim of this study was to assess the impact of CD on pediatric HTx outcomes using academic progress as a surrogate measure of cognitive performance. The OPTN database was queried for all pediatric HTx recipients (2004-2014) with reported academic progress. Multivariable analysis assessed the impact of DGL and the need for SE on post-HTx graft survival. A total of 2245 children were included: 1707 (76%) within grade level, 269 (12%) with DGL, and 269 (12%) who required SE. The need for SE was not a risk factor for post-HTx mortality; however, DGL was an independent risk factor for worse post-HTx outcomes (AHR 1.4, 95% CI 1.02, 1.79, P=.03). Patients who require SE have similar outcomes compared to those without CD, likely secondary to significant parental involvement. Children with DGL demonstrate inferior post-HTx survival, which could result from less parental oversight in children perceived to maintain compliance. Ensuring adequate social support for patients with evidence of CD may help to improve outcomes.