Gastro-oesophageal reflux and reflux disease — clinical case

Case summary

This thriving infant has effortless posseting with crying and back-arching but no red flags — a textbook picture of physiologic gastro-oesophageal reflux rather than disease. The clinical skill on display is restraint: resisting the request for a proton-pump inhibitor, confirming that this is physiologic reflux, excluding cow's milk protein allergy, and managing conservatively while supporting an exhausted family. [1]

Assessment and reasoning

The first step is to confirm physiology against disease. The infant is tracking the 50th centile, feeding well, has a soft abdomen, and never vomits bile or blood — there are no red flags of faltering growth, haematemesis, forceful or bilious vomiting, or recurrent aspiration. By the NASPGHAN and ESPGHAN definitions this is physiologic reflux that needs reassurance rather than investigation or acid suppression. [1]

The crying and back-arching are the features driving the family's distress and the request for a drug, but they are non-specific and are not reliably caused by acid reflux. Cow's milk protein allergy is the important mimic to consider in a formula-fed, unsettled infant, particularly if there is eczema or blood or mucus in the stool, and it is excluded by a trial of an extensively hydrolysed formula rather than by an acid-suppressing drug. [1]

Management

Begin with reassurance and conservative measures, which are the evidence-based foundation of care for physiologic reflux. Explain to the family that reflux is normal, expected, and self-limiting, that around half of infants regurgitate at this age, and that the great majority settle by the first birthday, so over-treatment causes more harm than the reflux itself. [3]

The practical measures for this infant are smaller and more frequent feeds, avoiding overfeeding, upright positioning after feeds, and careful winding, and a systematic review supports these non-pharmacological interventions as safe and effective first-line care. Given the crying and arching in a formula-fed infant, I would trial an extensively hydrolysed formula for two to four weeks to exclude cow's milk protein allergy. If troublesome symptoms persisted a short alginate trial is the pharmacological option with the best short-term evidence. [3] [1]

A proton-pump inhibitor is not indicated. A large placebo-controlled trial of lansoprazole in symptomatic infants found no benefit over placebo for crying and reflux symptoms and more lower respiratory tract infections in the treated group, so acid suppression here would expose the infant to harm for no gain. [2]

Disposition and counselling

Counsel the family that physiologic reflux resolves in the vast majority of infants by twelve to eighteen months as upright posture and solid foods take over, and that this infant's growth and absence of red flags predict an excellent outcome. Most infants with reflux are managed entirely in primary care and never need a specialist. [1]

Provide a clear safety-net of the red flags that should prompt review — bile-stained vomit, forceful or projectile vomiting, faltering growth, haematemesis, or respiratory distress — and confirm that no acid suppressant is being started, so there is nothing to wean. The intervention that most helps this family is the confident explanation that the reflux is normal and that the safest treatment is watchful, conservative care with cow's milk protein allergy excluded. [3]