{Reference Type}: Journal Article {Title}: An In-Depth Look at Nutrition Support and Adequacy for Critically Ill Children with Organ Dysfunction. {Author}: Knebusch N;Hong-Zhu P;Mansour M;Daughtry JN;Fogarty TP;Stein F;Coss-Bu JA; {Journal}: Children (Basel) {Volume}: 11 {Issue}: 6 {Year}: 2024 Jun 8 {Factor}: 2.835 {DOI}: 10.3390/children11060709 {Abstract}: Patients admitted to a pediatric intensive care unit (PICU) need individualized nutrition support that is tailored to their particular disease severity, nutritional status, and therapeutic interventions. We aim to evaluate how calories and proteins are provided during the first seven days of hospitalization for children in critical condition with organ dysfunction (OD). A single-center retrospective cohort study of children aged 2-18 years, mechanically ventilated > 48 h, and admitted > 7 days to a PICU from 2016 to 2017 was carried out. Nutrition support included enteral and parenteral nutrition. We calculated scores for the Pediatric Sequential Organ Failure Assessment (pSOFA) on days 1 and 3 of admission, with OD defined as a score > 5. Of 4199 patient admissions, 164 children were included. The prevalence of OD for days 1 and 3 was 79.3% and 78.7%, respectively. On day 3, when pSOFA scores trended upward, decreased, or remained unchanged, median (IQR) caloric intake was 0 (0-15), 9.2 (0-25), and 22 (1-43) kcal/kg/day, respectively (p = 0.0032); when pSOFA scores trended upward, decreased, or remained unchanged, protein intake was 0 (0-0.64), 0.44 (0-1.25), and 0.66 (0.04-1.67) g/kg/day, respectively (p = 0.0023). Organ dysfunction was prevalent through the first 72 h of a PICU stay. When the pSOFA scores trended downward or remained unchanged, caloric and protein intakes were higher than those that trended upward.