Summer tournament, 34 °C: cramps or heat stroke?
A 17-year-old midfielder (78 kg) is playing his third match in four days at a summer tournament in Malta. Kick-off is at 12:30, air temperature is 34 °C, relative humidity 65% and there is little shade. In the 68th minute he complains of a throbbing headache, nausea and calf cramps. He looks pale, is sweating heavily, and his speech is slurred. He tries to push away the physiotherapist and asks to go back on. Rectal temperature is 40.1 °C, heart rate 152 beats·min−1, blood pressure 100/60 mmHg and he cannot answer simple questions about the score. The coach wants to give salt tablets, sit him in the shade for ten minutes and send him back on because the team has no substitutes. A parent offers to drive him home. The tournament rules allow unlimited substitutions.
1. Classify the likely condition and justify your classification using the specific findings. Explain why 'heat exhaustion' and 'cramps' are unsafe labels here.
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The likely diagnosis is exertional heat stroke (EHS). The decisive feature is central nervous system dysfunction in a person performing strenuous exercise in the heat: slurred speech, aggression (pushing the physiotherapist away), inability to answer simple questions, and confusion. Rectal temperature 40.1 °C supports the diagnosis; EHS is conventionally defined by hyperthermia, often above 40 °C, plus CNS dysfunction.
Heat exhaustion can also cause headache, nausea, dizziness and cramps, but core temperature is usually below 40 °C and there is no persistent confusion or aggression. Cramps alone would not explain the neurological signs. Heavy sweating does not exclude EHS: exertional heat stroke often occurs in sweating athletes, unlike classic heat stroke in older adults. The combination of hot, humid conditions, repeated matches in four days and inadequate recovery increases risk.
Treating this as cramps and giving salt tablets would delay cooling during the period when rapid reduction of core temperature matters most. The label matters because EHS is a medical emergency requiring immediate cold-water immersion and emergency transfer, not a return to play.
2. Set out the immediate management priorities for the next 30 minutes. For each action, state what it is intended to achieve and identify the coach’s two proposed actions that are dangerous.
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Priorities:
- Call emergency services immediately, stating suspected exertional heat stroke, the athlete’s age and that he is confused. This starts definitive care and transport.
- Begin cold-water immersion or, if unavailable, apply ice towels to the neck, axillae and groin with fanning. The aim is to lower rectal temperature rapidly, ideally below 39 °C within 30 minutes, to limit organ damage.
- Do not give salt tablets or oral fluids while he is confused: there is aspiration risk, vomiting and delay in cooling. Salt tablets do not treat EHS and may worsen hypernatraemia.
- Do not send him home by car: he needs continuous monitoring for seizures, airway compromise and cardiovascular instability, and ambulance transport allows cooling to continue.
- Remove excess clothing, monitor breathing and circulation, and be ready for CPR.
The coach’s two dangerous actions are salt tablets and returning him to play after ten minutes in the shade. A parent driving him home is also unsafe because it delays definitive care and monitoring. Same-day return to sport is contraindicated.
3. Design prevention and return-to-play guidance for the rest of the tournament.
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Prevention: reschedule matches away from 12:30; use a heat-index or WBGT policy with cooling breaks, unlimited substitutions, shaded recovery and cold water. Acclimatise players over 7–14 days, especially before consecutive matches. Enforce sleep, hydration and recovery between matches, with at least 24–48 hours between matches where possible. Medical staff should screen for illness, medication and previous heat illness. The emergency plan needs ice baths, a rectal thermometer, radios and ambulance access.
Return to play: no same-day return. After EHS, require physician assessment, normal blood tests and no neurological symptoms. Begin a graded return over at least 1–2 weeks, starting with light indoor exercise in cool conditions, then increasing duration and heat exposure. Monitor for recurring symptoms.
Tournament rules must not force an athlete back because there are no substitutes; player welfare overrides the result.