在这两项研究中，服用托伐普坦的病人在第四天及第三十天的血清钠浓度比服用安慰剂的病人高。
In both studies, patients assigned to tolvaptan had higher serum sodium concentrations at day 4 and day 30 than those in the placebo group.
低钠血症也被称为水中毒，当血液中的血清钠浓度降低到危险水平时，会引起机体的细胞停止分泌水分。
Known as "water intoxication," the condition occurs when serum sodium concentration in the blood falls to dangerously low levels causing cells in the body to stop excreting water.
方法收集首次发病的急性大面积脑梗死患者81例，测定其血清钠浓度，对发生低钠血症患者的预后进行分析。
Methods Serum sodium levels were measured in 81 patients with initial massive cerebral infarction. The prognosis of the patients with hyponatremia was analyzed.
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