Hyponatremia among runners in the Boston Marathon.

@article{Almond2005HyponatremiaAR,
  title={Hyponatremia among runners in the Boston Marathon.},
  author={Christopher S. D. Almond and Andrew Young Shin and Elizabeth B. Fortescue and Rebekah Mannix and David Wypij and Bryce A. Binstadt and Christine N. Duncan and David P. Olson and Annalisa Salerno and Jane W. Newburger and David S. Greenes},
  journal={The New England journal of medicine},
  year={2005},
  volume={352 15},
  pages={
          1550-6
        }
}
BACKGROUND Hyponatremia has emerged as an important cause of race-related death and life-threatening illness among marathon runners. [...] Key Method Subjects completed a survey describing demographic information and training history. After the race, runners provided a blood sample and completed a questionnaire detailing their fluid consumption and urine output during the race. Prerace and postrace weights were recorded.Expand
Hyponatremia Among Runners in the Zurich Marathon
TLDR
A relatively low incidence of EAH was observed in subjects running the marathon in around 2.5 to 5 hours and in a cool environment and there was a direct correlation between fluid intake and plasma sodium change during the race and postrace sodium levels correlated with body mass change. Expand
A Study of Serum Sodium Level Among Hong Kong Runners
TLDR
Hypernatremia was seen in runners who were better trained before the race, those who performed better, and those who drank less water after the race; this is the largest prospective observational cohort study of dysNatremia conducted on athletes completing a standard marathon in Asia. Expand
Incidence of Hyponatremia During a Continuous 246-km Ultramarathon Running Race
TLDR
The incidence of EAH of 52 and 65%, when excluding or including these individuals with pre-race hyponatremia, was the highest reported in current literature. Expand
The incidence of exercise-associated hyponatraemia in the London marathon
TLDR
Four of the 11 hyponatraemic runners lost weight over the course of the marathon, strengthening the case for an additional factor, such as inappropriate antidiuretic hormone release during exercise, in the development of EAH. Expand
Exercise-Associated Hyponatremia during the Olympus Marathon Ultra-Endurance Trail Run
Research on hyponatremia during mountain marathons is scarce. The present study aimed to investigate the prevalence of exercise-associated hyponatremia during a 44-km trail running race that reachedExpand
Hyponatremia in Marathon Runners due to Inappropriate
TLDR
Cases of EAH fulfill the essential diagnostic criteria for the syndrome of inappropriate antidiuretic hormone secretion (SIADH), and release of muscle-derived interleukin-6 may play a role in the nonosmotic secretion of arginine vasopressin, thereby linking rhabdomyolysis to the pathogenesis of E AH. Expand
Dysnatremia among runners in a half marathon performed under warm and humid conditions
TLDR
Hyponatremia has been associated with high fluid intake in races performed under cool weather, such as the Boston Marathon during spring, and hypernatremia was found in a half marathon in warm and humid weather, which was associated with lower volume and frequency of fluid intake. Expand
Prevalence of Hyponatremia, Renal Dysfunction, and Other Electrolyte Abnormalities Among Runners Before and After Completing a Marathon or Half Marathon
TLDR
Metabolic abnormalities are common among endurance racers, and they may be present prerace, including hyponatremia, which is unclear which runners are at risk for developing clinically important metabolic derangements. Expand
Exertional dysnatremia in collapsed marathon runners: a critical role for point-of-care testing to guide appropriate therapy.
TLDR
On-site sodium testing and treatment in collapsed runners at the finish-line medical tent at the Boston marathons from 2001 through 2008 was reviewed, finding dysnatremic runners treated with appropriate intravenous fluids according to validated standards of care. Expand
Hyponatremia in marathon runners due to inappropriate arginine vasopressin secretion.
TLDR
Cases of EAH fulfill the essential diagnostic criteria for the syndrome of inappropriate antidiuretic hormone secretion (SIADH), and runners with hypotonic encephalopathy at subsequent races were treated with intravenous hypertonic saline on the basis of this paradigm, which resulted in rapid clinical improvement without adverse effects. Expand
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