Most of us know the risk of dehydration during endurance exercise under extreme heat. We report a case that occurred in cool weather and when there was an abundant supply of fluid – the so-called exercise-associated hyponatremia. It is a potentially life-threatening condition and has led to at least seven fatal outcomes reported in the literature.
NoakesT.D.Fluid replacement during exercise. Exerc Sport Sci Rev1993; 21: 297–330.
2.
NoakesT.D., GoodwinN., RaynerB.L., BrankenT., TaylorR.K.Water intoxication: a possible complication during endurance exercise. Med Sci Sports Exerc1985; 17(3): 370–5.
3.
Hew-ButlerT., AlmondC., AyusJ.C., DugasJ., MeeuwisseW., NoakesT.Exercise-Associated Hyponatremia (EAH) Consensus Panel. Consensus statement of the 1st International Exercise-Associated Hyponatremia Consensus Development Conference, Cape Town, South Africa 2005. Clin J Sport Med2005; 15(4): 208–13.
4.
Hew-ButlerT., AyusJ.C., KippsC., MaughanR.J., MettlerS., MeeuwisseW.H.Statement of the Second International Exercise-Associated Hyponatremia Consensus Development Conference, New Zealand 2007. Clin J Sport Med2008; 18(2): 111–21.
5.
HewT.D., ChorleyJ.N., CiancaJ.C., DivineJ.G.The incidence, risk factors, and clinical manifestations of hyponatremia in marathon runners. Clin J Sport Med2003; 13(1): 41–7.
6.
KratzA., SiegelA.J., VerbalisJ.G., AdnerM.M., ShireyT., Lee-LewandrowskiE.Sodium status of collapsed marathon runners. Arch Pathol Lab Med2005; 129(2): 227–30.
7.
AlmondC.S., ShinA.Y., FortescueE.B., MannixR.C., WypijD., BinstadtB.A.Hyponatremia among runners in the Boston Marathon. N Engl J Med2005; 352(15): 1550–6.
8.
ReidS.A., SpeedyD.B., ThompsonJ.M., NoakesT.D., MulliganG., PageT.Study of hematological and biochemical parameters in runners completing a standard marathon. Clin J Sport Med2004; 14(6): 344–53.
9.
MettlerS., RuschC., FreyW.O., BestmannL., WenkC., ColombaniP.C.Hyponatremia among runners in the Zurich Marathon. Clin J Sport Med2008; 18(4): 344–9.
10.
AyusJ.C., VaronJ.Arieff AI. Hyponatraemia, cerebral edema, and noncardiogenic pulmonary edema in marathon runners. Ann Int Med2000; 132(9): 711–4.
