Parvovirus is associated with myocarditis in a small percentage of children and may be a potential contributor to cardiac transplant rejection. PCR may provide a rapid and sensitive method of diagnosis.
Group I patients did not require significantly oversized donors, restricted donor locations or longer intensive care unit stays or have higher infection rates; however, arrhythmias were more frequent. Pulmonary resistance index normalized early after transplantation. Pulmonary vascular reactivity may be more important for survival than absolute resistance index.
Children with end-stage cardiac failure are at risk of HA and PG. The effects of these factors on post-transplant outcome are not well defined. Using the PHTS database, albumin and growth data from pediatric heart transplant patients from 12/1999 to 12/2009 were analyzed for effect on mortality. Covariables were examined to determine whether HA and PG were risk factors for mortality at listing and transplant. HA patients had higher waitlist mortality (15.81% vs. 10.59%, p = 0.015) with an OR of 1.59 (95% CI 1.09-2.30). Survival was worse for patients with HA at listing and transplant (p ≤ 0.01 and p = 0.026). Infants and patients with congenital heart disease did worse if they were HA at time of transplant (p = 0.020 and p = 0.028). Growth was poor while waiting with PG as risk factor for mortality in multivariate analysis (p = 0.008). HA and PG are risk factors for mortality. Survival was worse in infants and patients with congenital heart disease. PG was a risk factor for mortality in multivariate analysis. These results suggest that an opportunity may exist to improve outcomes for these patients by employing strategies to mitigate these risk factors.
Measurement of the expression of the early activation marker CD69 in peripheral blood lymphocytes by flow cytometry may provide a noninvasive means of assessing immune activation and possible rejection in cardiac transplant recipients.
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