| Red Flag | Clinical Significance / Action |
| Failure to thrive 📉 |
Consider complications, nutritional support, escalate to paediatric gastroenterology. |
| Haematemesis / melaena 🩸 |
Investigate for oesophagitis, bleeding ulcers; urgent endoscopy if severe. |
| Apnoea / ALTE episodes 😮💨 |
Monitor closely; consider cardiorespiratory assessment and reflux therapy escalation. |
| Severe respiratory complications 🫁 |
Frequent aspiration, recurrent pneumonia → consider investigation, PPI therapy, specialist input. |
| Persistent symptoms >6–9 months ⏱️ |
Reassess diagnosis, consider endoscopy or pharmacological therapy, referral if unresolved. |
| Neurological or anatomical abnormalities 🧠🧬 |
May affect oesophageal motility → multidisciplinary review required. |