Wednesday, March 26, 2008

What is the area of cerebral infarction?

Large cerebral infarction is caused by cerebral artery occlusion, CT showed a low density shadow Flake, and most cerebral lobes of the brain or cross-distribution of the larger brain tissue damage, clinical performance, in addition to the general symptoms of cerebral infarction, but also disturbance of consciousness and with increased intracranial pressure. Large cerebral infarction disturbance of consciousness and symptoms of increased intracranial pressure more prominent, and cerebral hemorrhage like to diagnosis difficult. Cranial CT scan is a necessary condition for the diagnosis, but for the unconditional CT, the following can be used as the basis for the differential diagnosis: (1) large cerebral infarction often cerebral thrombosis history, in the few days prior to the onset of a few weeks or limbs often side weakness, numbness, dizziness, and other symptoms of pre-footer. (2) onset in labor, defecation, drinking and excitement, the possibility of cerebral hemorrhage, cerebral infarction traditional values that often in a quiet state of incidence. (3) cerebral hemorrhage more than 70% of patients have a history of hypertension, and the vast majority of that early in the disease have significantly higher blood pressure; massive cerebral infarction have no similar phenomenon. (4) cerebral hemorrhage patients onset, then headache, vomiting, and other symptoms of increased intracranial pressure; massive cerebral infarction increased intracranial pressure appeared relatively late, the conduct of a sustained increase. (5) meningeal irritation, brain hemorrhage Most of the earlier but there is also a large area of cerebral infarction generally difficult to detect, or there late.

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