Chimeric Antigen Receptor–Modified T Cells in Chronic Lymphoid Leukemia; Chimeric Antigen Receptor–Modified T Cells for Acute Lymphoid Leukemia; Chimeric Antigen Receptor T Cells for Sustained Remissions in Leukemia

race.The first cases of hyponatremia appeared in the cluster of participants who finished in the 9th hour of the race; cases of critical hyponatremia occurred in the clusters of participants who finished in the 12th and 14th hours of the race.A previous study involving marathon runners showed that 12 to 13% of participants had hyponatremia and that the incidence of critical hyponatremia was 0.5 to 1%. 1 In contrast, the observed incidence of hyponatremia in longdistance triathlons was 10.6%.The incidence of critical hyponatremia was 0.3% (approximately half the incidence seen among marathoners).Our data show that exercise-associated hyponatremia occurs in a considerable percentage of long-distance triathletes.Female triathletes with a racing time of 9 hours or more appear to be the most susceptible to hyponatremia.