The challenge of establishing a correct serum potassium cutoff for inhospital triage after avalanche-induced cardiac arrest

Hypothermia outcome prediction after extracorporeal life support for hypothermic cardiac arrest patients: The HOPE score

“…This decreases to 59% with a potassium of 4 mmol/L and to 30% with a potassium of 6 mmol/L, all other parameters remaining equal. Thus, our score is in accordance with studies where normal or even low serum potassium levels are observed at the onset of hypothermia [39]. A normal or low potassium level may be a marker of a short duration of CA indicative of better prognosis, even if it is still associated with a 30% risk of death in our example.…”