Results : the prognosis of isolated systolic hypertension is good but there ' s great possibility for the patients who had isolated systolic blood pressure and systolic blood pressure intercurrent diastolic blood pressure to have cardio - cerebrovascular 结果:单纯舒张期高血压预后良好,而单纯收缩期高血压及收缩压合并舒张压升高者有较大的发生心脑血管病的危险性。