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高血压的心血管系统合并症,有来自脑出血、肾功能不良以及恶性高血压等称之为高血压性者;也有由于高血压持续进展,动脉粥样硬化和微细动脉硬化引起的脑梗塞和缺血性心脏病等。降压疗法的目的就在于预防这些心血管系统合并症,其效果已为流行病学调查所证明。而降压疗法对预防脑血管障碍复发的效果,对脑出血是肯定的;而脑血栓,特别是65岁以上的患者,尚不能肯定其预防效果。脑梗塞病例中,高血压仍为一种危险因素,为了预防其复发以及预防其他心血管系统合并症,降压疗法是必要的。但在临床实践中还宜根据阻塞部位以及侧枝循环等具体情况,不能一律滥用降压疗法。本文就高血压和脑梗塞病例的脑循环调节障碍,尤其是脑血流和血压的关系加以叙述。
Hypertensive cardiovascular complications, from cerebral hemorrhage, renal dysfunction and malignant hypertension called hypertensive persons; there are also due to the continued progress of hypertension, atherosclerosis and arteriosclerosis caused by cerebral infarction and Ischemic heart disease. The goal of antihypertensive therapy is to prevent these cardiovascular complications, the results of which have been proven by epidemiological investigations. The antihypertensive therapy to prevent the recurrence of cerebrovascular disease, the effect of cerebral hemorrhage is affirmative; and cerebral thrombosis, especially in patients over the age of 65, is still not sure its preventive effect. Hypertension is still a risk factor in cases of cerebral infarction, and antihypertensive therapy is necessary to prevent its recurrence and prevent other cardiovascular complications. But in clinical practice should also be based on the blocking site and collateral circulation and other specific circumstances, can not be abused antihypertensive therapy. This article describes the relationship between hypertension and cerebral infarction in the regulation of cerebral circulation, especially the relationship between cerebral blood flow and blood pressure.