高血压急症不经治疗预后极差,一年生存率为 10% 至 20%。但现有抗高血压治疗已极大改善预后,接受妥善治疗的患者,五年生存率约为 70%。诊断高血压急症时出现肾衰可增加死亡率。[44]Lip GY, Beevers M, Beevers DG. Complications and survival of 315 patients with malignant-phase hypertension. J Hypertens. 1995;13:915-924.http://www.ncbi.nlm.nih.gov/pubmed/8557970?tool=bestpractice.com[45]Webster J, Petrie JC, Jeffers TA, et al. Accelerated hypertension patterns or mortality and clinical factors affecting outcome in treated patients. Q J Med. 1993;86:485-493.http://www.ncbi.nlm.nih.gov/pubmed/8210306?tool=bestpractice.com