Feeding Tolerance, Intestinal Motility, and Superior Mesenteric Artery Blood Flow in Infants with Gastroschisis.

OBJECTIVE: The aim of this study was to determine the relationship of superior mesenteric artery (SMA) blood flow and intestinal motility with feeding tolerance in infants with gastroschisis. STUDY DESIGN: This was a prospective observational cohort study of 23 infants with gastroschisis. Magnetic resonance images were obtained at abdominal wall closure, initiation of feeds, and full feeds. Motility and SMA flow data were correlated with feeding tolerance. RESULT: All infants had abnormal motility, and most continued with abnormal motility despite achieving full feeds. Increased SMA flow at the time of abdominal wall closure was found to be significantly related to the earlier achievement of full feeds (ρ = -0.45, p = 0.05) and trended towards earlier initiation of feeds (ρ = -0.36, p = 0.13), shorter parenteral nutrition days (ρ = -0.42, p = 0.07), and earlier discharge (ρ = -0.41, p = 0.08). CONCLUSION: Increased SMA blood flow at the time of abdominal wall closure is positively correlated with feeding tolerance, suggesting the importance of initial intestinal perfusion in the pathophysiology for feeding intolerance and intestinal dysmotility in gastroschisis.

Tube feeding outcomes of infants in a Level IV NICU.

BACKGROUND: NICU patients are commonly discharged home with nasogastric (NG) or gastrostomy (G-tube) feeding, but wide practice variation exists. The objective of this study was to evaluate feeding and growth outcomes and complications in NICU patients discharged home with NG or G-tube feeding. STUDY DESIGN: Retrospective cohort study of infants discharged from a Level IV NICU with an NG or G-tube who had follow up to 1 year. Clinical characteristics and outcomes were compared between groups. RESULTS: The study sample included 264 infants: 140 with NG and 124 with G-tube. More infants in the G-tube group (65%) still required tube feedings 12 months post-discharge than infants in the NG group (24%). Infants in the G-tube group had more tube-related ER visits than infants in the NG group. Growth outcomes did not differ. CONCLUSION: Home NG feeding may be a safe alternative to a surgically placed G-tube in select NICU patients.

Evaluation of Early Onset Sepsis, Complete Blood Count, and Antibiotic Use in Gastroschisis.

OBJECTIVE: Gastroschisis is a congenital defect in which the abdominal viscera herniate through the abdominal wall. In this population, antibiotics are often initiated immediately following delivery; however, this may be unnecessary as infections typically develop as a consequence of chronic issues in gastroschisis. The objective of this study was to evaluate the incidence of culture positive early onset sepsis, the reliability of the immature to mature neutrophil count (I:T) ratio as an infectious biomarker, and antibiotic use in infants with gastroschisis. STUDY DESIGN: This retrospective chart review analyzed clinical data from 103 infants with gastroschisis and 103 weight-matched controls that were evaluated for early onset infection. RESULTS: Compared with the control group, there was a significantly increased percentage of infants with an I:T ratio > 0.2 in the gastroschisis group (43% vs. 12%, p < 0.001) and an increased percentage of infants exposed to greater than 5 days of antibiotics regardless of their I:T ratio (75% vs. 6%, p < 0.001). There were no episodes of culture positive early onset sepsis in either group. CONCLUSION: Our results indicate that I:T ratio is not a reliable marker of infection in gastroschisis, and suggest that empiric septic evaluation and antibiotic use, immediately following delivery in gastroschisis infants, may be unnecessary.