| NEC | Necrotising Enterocolitis |
| S-NEC | Surgical Necrotising Enterocolitis |
| VLBW | Very Low Birth Weight |
| NICU | Neonatal Intensive Unit |
| TANEC | Transfusion-Associated NEC |
| FIP/SIP | Focal Intestinal Perforation |
| FPIES | Food-Protein-Induced Enterocolitis |
| ELBW | Extremely Low Birth Weight |
| TLR4 | Toll-Like Receptor-4 |
| IUGR | Intrauterine Growth Restriction |
| ICP | Intrahepatic Cholestasis of Pregnancy |
| MSAF | Meconium-stained Amniotic Fluid |
| PDA | Patent Ductus Arteriosus |
| SGA | Small for Gestational Age |
| IVH | Intraventricular Haemorrhage |
| NSAIDs | Non-Steroidal Anti-Inflammatory Drugs |
| AUC | Arterial Umbilical Catheter |
| VUC | Venous Umbilical Catheter |
| AI | Artificial Intelligence |
| DL/ML | Deep Learning/Machine Learning |
| MPV | Mean Platelet Volume |
| PDW | Platelet Distribution Width |
| PLR | Platelet-to-Lymphocyte Ratio |
| I-FABP | Intestinal Fatty Acid Binding Protein |
| MD7 | Metabolic Derangement 7 score |
| PPD/PD | Primary Peritoneal Drainage/Peritoneal Drain |
| GA | Gestational Age |
| BW | Body Weight |
| LOS | Length of Hospital Stay |
| AKI | Acute Kidney Injury |
| PN/TPN | Parenteral Nutrition/Total Parenteral Nutrition |
| CLABSI | Central-Line-Associated Bloodstream Infections |
| HM | Human Milk |
| ACS | Abdominal Compartment Syndrome |
| BPD | Bronchopulmonary Dysplasia |
| RCTs | Randomised Controlled Trials |
| ICG | Indocyanine Green |
| DCS | Damage-Control Surgery |
| PICU | Paediatric Intensive Care Unit |
| PVL | Periventricular Leukomalacia |
| CP | Cerebral Palsy |
| ROP | Retinopathy of Prematurity |
| VEGF | Vascular Endothelial Growth Factor |
| IGF-1 | Insulin Growth Factor-1 |
| IFALD | Intestinal-Failure-Associated Liver Disease |
| IF | Intestinal Failure |
| ICV | Ileocecal Valve |
| SBS | Small Bowel Syndrome |
| NDI | Neurodevelopmental Impairment |
| WMBI | White Matter Brain Injury |
| RIC | Remote Ischemic Conditioning |
| FMT | Faecal Microbiota Transplantation |
| FFT | Faecal Filtrate Transplantation |
| MSCs | Mesenchymal Stem Cells |
| AFSCs | Amniotic Fluid Stem Cells |