Journal Club | SALT-ED Trial

Welcome to Overheard Journal Club. In this new short-form series, ED physician Dr Adrian Cois takes a single paper that's changed how he practises and breaks it down conversationally — PICO, results, critical appraisal, and the practical "so what do I do with this on my next shift" synthesis.First up: SALT-ED. Self and colleagues, NEJM 2018. A pragmatic crossover trial in 13,347 noncritically ill adults asking whether balanced crystalloids beat normal saline as the default IV fluid in the emergency department. The answer reshaped Adrian's reflex — and gave him his favourite pharmacology joke.In this episode: why "normal" saline carries a supraphysiologic chloride load, how the pragmatic crossover design hit 88% adherence without blinding, what the MAKE30 composite outcome actually means, and the short list of hard indications for which saline still earns its place on the IV pole.Key takeaways•  In noncritically ill adults receiving IV fluids in theED, balanced crystalloids reduce major adverse kidney events at 30 dayscompared with saline (NNT 111).•  The mechanism is the supraphysiologic chloride load insaline, which causes hyperchloremic metabolic acidosis.•  Default to lactated Ringer's. Reserve saline for hyperkalemia, traumatic brain injury, hyponatremia, and drug compatibility issues — and even then, keep volumes modest.DisclaimerEducational content only. Not medical advice. Does not establish a physician-patient relationship. Always discuss management decisions with a qualified clinician.