Division NEO-NEC: Necrotising enterocolitis

• Histopathological evidence of necrotising enterocolitis

OR

• at least one characteristic radiographic abnormality (pneumoperitoneum, pneumatosis intestinalis, unchanging ‘rigid’ loops of small bowel) plus at least two of the following without other explanation: vomiting, abdominal distension, prefeeding residuals, persistent microscopic or gross blood in stools