Gravitas Feeding Tube System Placement Validation in Neonates

Inclusion Criteria:

• Infants in the Newborn Intensive Care Unit or on the general medical floor requiring a 5-8 Fr NG tube. The desired size of the feeding tube should be determined clinically,and the Gravitas 5-8 Fr Feeding Tube should only be placed if that size isappropriate.
• Age at enrollment: 0 to 18 weeks post-partum. Can be up to 12 weeks preterm (gestational age ≥ 28 weeks).
• Suitable to start enteral (gastric but not post-pyloric) feeding
• Anticipated to receive enteral feeding (either bolus or continuous feeds) for morethan 6 hours. If enteral nutrition has already been initiated, indicated forreplacement of an orogastric/nasogastric feeding tube.
• Ability to have a legally authorized representative provide informed consent Bothneonates on a ventilator (non-invasive or invasive ventilation) or not requiring aventilator are eligible for this study.

Exclusion Criteria:

• Known major upper airway malformation (e.g. tracheoesophageal fistula)
• Known major GI malformation (e.g. malrotation)
• NPO status - neonate expected to remain NPO/NPG for the following 72 hours
• Has a medical condition that drastically affects gastric acid-secretion (e.g.Zollinger-Ellison Syndrome, congenital achlorhydria, gastrointestinalperforation/leak/obstruction);
• Has had removal of part of the stomach
• Critically ill, facing imminent death
• Neonate on ECMO
• Deemed unsuitable for enrollment in study by the site principal investigator based onthe patients' medical history
• Infant needs an MRI in the immediate future (e.g. 6-12h)
• Infant needs post-pyloric feeds (distal to stomach)
• Infant has a basilar skull fracture