本文测定了１２例蛛网膜下腔出血患者的血浆内皮素水平并与正常人对照，结果表明，蛛网膜下腔出血患者血浆内皮素水平较正常人明显升高。蛛网膜下腔出血后，血浆内皮素水平急剧升高，在发病后３天有轻度下降，随后持续上升至发病２周达到高峰，同时观察到蛛网膜下腔出血后出现迟发性脑血管痉挛的患者，其血浆内皮素水平高于未发生迟发性脑血管痉挛者 This paper measured the plasma endothelin level in 12 patients with subarachnoid hemorrhage and compared with normal people, the results showed that patients with subarachnoid hemorrhage plasma endothelin levels were significantly higher than normal. Subarachnoid hemorrhage, plasma endothelin levels increased dramatically, 3 days after the onset of a slight decline, and then continued to rise to the peak of 2 weeks of onset, while the observed after subarachnoid hemorrhage delayed cerebral blood vessels Patients with spasticity have higher plasma endothelin levels than those without delayed cerebral vasospasm