Biomedical researchers headed by a team at the Lampe Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill/North Carolina State University, have developed an injectable microgel to help reduce bleeding in infants who require surgical care. Tests in an animal model showed that the hemostatic microgels, known as B-knob-triggered microgels (BK-TriGs), reduced bleeding by at least 50%. Research lead Ashley Brown, PhD, who is the Lampe Distinguished Professor of Biomedical Engineering, is co-corresponding author of the team’s published paper in Science Advances, titled “Hemostatic B-knob-triggered microgels (BK-TriGs) to address bleeding in neonates.” In their paper the team concluded “This study highlights the potential of BK-TriGs, designed for neonatal-specific clotting mechanisms, to address the heightened bleeding and thrombosis risks in neonates, who face 4.4 times higher postsurgery mortality … Our findings support BK-TriGs as a promising approach for improving hemostasis in neonates, offering a tailored, effective solution for this vulnerable patient population.” When adults cut themselves, a multi-step process called hemostasis stops the bleeding from the injured blood vessel. But hemostasis in infants is different from hemostasis in adults. This difference can be problematic if infants require surgery to address significant medical problems. In surgeries, neonatal patients normally receive blood from adult donors to compensate for blood lost during the operation. “Current treatments rely on transfusing adult blood products, which may cause complications resulting from structural and functional differences between neonatal and adult fibrinogen,” the authors wrote. “… these transfusions pose serious safety concerns by increasing morbidity, prolonging…
