Wilderness Medicine Updates Ep. 4 - HOPE Score for Severe Hypothermia
Feb 23, 2023
Discover the critical HOPE score, a lifesaving tool that helps identify severely hypothermic patients who may benefit from advanced rewarming techniques. Listen as a gripping case of a young man's near-fatal encounter with hypothermia is shared, highlighting the intense emergency response. The discussion also focuses on the HOPE score's significance, its practical applications, and essential considerations for managing both adult and pediatric patients. Engage with the complexities of hypothermia management while learning about recent studies that validate this crucial scoring system.
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Don't Rely Solely On Potassium
- Avoid using potassium alone as the sole prognostic cutoff for ECLS candidate selection.
- Recognize prior practice used K+ >12 mmol/L (non-avalanche) or >8 (avalanche) but this had limited evidence.
Multivariable Basis Of HOPE
- HOPE integrates mechanism, witness status, core temp, CPR duration, potassium, age, and rhythm for outcome prediction.
- The model aimed to outperform potassium-alone prognostication by combining key clinical variables.
Derivation Study Performance
- The derivation cohort (n=286) showed a 37% survival and HOPE AUC ≈0.895 (optimism-adjusted ≈0.83).
- HOPE outperformed potassium alone and reduced false positives without increasing false negatives.