ABSTRACT
BACKGROUND: Dysnatremia has been associated with sports activity, especially long-distance running and endurance sports. High fluid intake is associated with hyponatremia. This study aims to evaluate dysnatremia and risk factors in half-marathon runners under warm and humid environmental conditions. METHODS: A cross-sectional study was performed among randomly selected runners in the 2017 Cali half marathon. Runners on diuretic therapy or with a known history of kidney disease were excluded. Participants went through a 2-day assessment. Previous medical history, training history, body mass index and running history were determined in the first assessment. Symptoms of dysnatremia and level of fluid consumption during the race were registered during the second assessment and post-run blood sampling for serum [Na+] was also undertaken. RESULTS: 130 runners were included in the study. The complete 2-day assessment was performed on 81 participants (62%) that were included in the final analysis. No cases of hyponatremia were found; instead, there were six cases of asymptomatic hypernatremia (7.4%). This hypernatremia had a statistically significant association with lower frequency (p=0.01) and volume of fluid intake during the race (water: p=0.02, Gatorade: p=0.04). CONCLUSION: Hyponatremia has been associated with high fluid intake in races performed under cool weather, such as the Boston Marathon during spring. In contrast, hypernatremia was found in a half marathon in warm and humid weather, which was associated with lower volume and frequency of fluid intake, suggesting that under warm and humid conditions, a median fluid intake of 900 mL during the race could prevent this event.
ABSTRACT
Resumen ANTECEDENTES: Durante el embarazo suceden cambios adaptativos, secundarios a las variaciones hormonales, como las alteraciones en la concentración de lípidos plasmáticos necesarias para garantizar la adecuada nutrición al feto. Algunas veces la concentración de triglicéridos sobrepasa los límites de tolerancia y ello pone en riesgo la salud de la madre. CASO CLÍNICO: Paciente con antecedente de un embarazo, hipertrigliceridemia familiar que se exacerbó por los procesos fisiológicos del embarazo. Se hospitalizó para tratarla y los especialistas en Nutrición y Endocrinología le indicaron fármacos y plasmaféresis. CONCLUSIONES: La plasmaféresis es un método efectivo después de seis sesiones de tratamiento con el que se logran reducir 70% las concentraciones séricas triglicéridos, aunque no fue una medida definitiva y se requirió finalizar el embarazo.
Abstract BACKGROUND: Adaptive changes occur in pregnancy, secondary to hormonal variations, one of which is alterations in the level of plasma lipids that aims to ensure adequate nutrition to the fetus. However, sometimes triglycerides reach such high levels that they could compromise maternal health. CLINICAL CASE: The case of a female patient with a history of familial hypertriglyceridemia, exacerbated by the physiological processes of pregnancy, is presented. It was managed intrahospitalary, followed by nutrition and endocrinology, in addition to the use of pharmacological treatment and plasmapheresis. CONCLUSIONS: The use of plasmapheresis was evaluated as a therapeutic measure, where it was found to be an equally effective method after 6 sessions of treatment, achieving a 70% reduction in serum levels of triglycerides, however it was not a definitive measure and it was necessary to end the pregnancy.
