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MONITORING BODY TEMPERATURE WHEN EXPOSED TO THERMAL STRESS

Physiotraq logo – continuous core temperature monitoring

Physiotraq introduces Coretraqer®: its unique solution specifically designed for athletes, workers and personnel exposed to severe thermal stress.

Coretraqer®’s founding principle:
Accurate core temperature measurement is essential for on-site diagnosis and treatment of hyperthermia and hypothermia

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Climate change is causing a constant increase in global temperature and heat exposure, so is the risk of classic and exertional heat stroke

Heat Stroke: a life-threatening medical emergency:

   ✔ Core body temperature above 40°C

   ✔ Central nervous system dysfunction

   ✔ Rapid deterioration without immediate cooling

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Accurate core temperature measurement is key:

   ✔ Surface or skin temperature measurement are unreliable to diagnose heat stroke

   ✔ Only core temperature provides reliable clinical information

Consequences of poorly-managed heat strokes

Deaths:

   ✔ 24,400 deaths attributed in 2025 to heat across 854 European cities

   ✔ Cities with the highest standardized mortality rates: Rome (835 deaths), Athens (630), Paris (409).

 

Costs and Liability:

   ✔ 1 Poorly managed heat‑stroke costs € 50,000–€100,000 in a public system (France):

          ✔ Two weeks in Intensive Care Unit: Multi-Organ Failure: Ventilation, Organs Support

   ✔ 1 post Heat Stroke Liver Failure and Transplant: Lifetime burden: €200,000 – €500,000 / patient

 

   ✔ Liability of Employers & Sports organizations

   ✔ Inflated health costs for insurers (public and private)

Guglielmi G. (2025) Summer 2025 is roasting hot: charts show why it matters – Nature News in Focus, Vol 644, pp 586-588.

Climate change is causing rapidly changing extreme weather conditions, increasing the risk of exposure to hypothermia, especially in remote environments.

   Hypothermia is also a life-threatening medical emergency:

      ✔ Core body temperature below 35°C

      ✔ Altered mental status

      ✔ Fatal outcome without rapid diagnosis and controlled rewarming

Monitoring core body temperature during hypothermia

   Accurate core temperature measurement is key:

      ✔ Surface or skin temperature measurement are unreliable to diagnose hypothermia

      ✔ Only core temperature provides reliable clinical information

Consequences of poorly-managed hypothermia

Incidence & Risk Context (Outdoor, Mountain, Remote Environments):

   ✔ Accidental hypothermia occurs in a wide range of outdoor sports and remote activities such as ultra-endurance events, mountaineering, trekking, hiking, off-piste skiing, and wilderness recreation. It results from prolonged exposure to cold air, wind, water immersion, or exhaustion in remote settings.

   ✔ In recreational mountain environments, hypothermia risk increases markedly:

  • When physical exhaustion, injury, or trauma impairs thermoregulation

  • At high altitudes with wind chill effects

  • During off-trail or backcountry events where exposure duration is longer and shelter is limited

 

Costs and Liability:

   ✔ Hospital treatment of severe accidental hypothermia (including rewarming procedures, intensive care) is resource-intensive: a European case series reported ≈ €12,000 per case in total hospital cost when advanced therapies (like CEC/ECMO rewarming + ICU care) were used. https://pubmed.ncbi.nlm.nih.gov/30203539/

Employer & Event Liability:

   ✔ Employers and event organizers exposed to cold environments (remote worksites, outdoor events, competitive races) face:

  • Regulatory compliance costs (OHS measures, worker monitoring systems, training)

  • Potential liability for inadequate protection against cold stress

  • Insurance premium impacts when cold injuries or hypothermia necessitate claims

  • This mirrors recognized obligations in heat stress but adapted to cold hazard profiles. (European/OSHA frameworks apply acute protections for cold workplaces similar to heat, though specific economic quantification is sparse in literature.)

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