美国的神经病学家制定了预知梗塞病人病情恶化的准则。科学家对759名脑局部缺血性梗塞病人进行了试验研究。其中116人(15.3％)在脑血管意外发生后21天内病情恶化。48名病人在恶化前4天病情稳定或有所改善。在脑血管意外发生后30天,梗塞病人中63人死亡,28人病情恶化。与病情恶化有关的其它因素和相对危险性是:卒中突发的因素为低血压,占4.8％;初查时无共济失调,占3.4％;24小时中恶化者, American neurologists have developed guidelines for predicting the worsening of an infarcted patient’s condition. Scientists tested 759 cerebral ischemic infarction patients. Of these, 116 (15.3%) had their condition deteriorated within 21 days of the cerebrovascular accident. Forty-eight patients had stable or improved condition 4 days prior to worsening. Thirty days after the onset of the cerebrovascular accident, 63 of the infarcted patients died and 28 were exacerbated. Other factors associated with the worsening of the disease and the relative risk are: Sudden stroke factors for hypotension, accounting for 4.8%; initial check no ataxia, accounting for 3.4%; 24 hours of worsening,