动脉瘤性蛛网膜下腔出血(subarachnoid hemor-rhage,SAH)发生低血钠症通常认为是由于抗利尿激素分泌过多症(syndrome of inappropriate antidiu-retic hormone,SIADH),引起血液稀释和细胞外容积扩大所致,故常采用限制补液治疗。新近 Nelson等提出疑问,认为限制补液治疗可导致低血容量,并由于血管痉挛而继发脑缺血。为此,作者对134例于 Hyponatremia in subarachnoid hemor-rhage (SAH) is commonly thought to be due to the syndrome of inappropriate antidiu-retic hormone (SIADH) that causes hemodilution and extracellular Due to the volume expansion, it is often used to limit rehydration therapy. Recently, Nelson et al. Raised the question that limitation of rehydration therapy may lead to hypovolemia and secondary to cerebral ischemia due to vasospasm. To this end, the author of 134 cases