In roughly one-third of SAH victims, the blood vessels suddenly constrict, slowing the flow of oxygen-rich blood to the brain and causing a condition known as delayed ischemia.

Conclusion Concentration of LPA and AP made warning function as cerebral ischemia stroke and was a standard for judging ischemia brain damage.

RESULTS: All the 148 cases of hypoxia-ischemia brain injury were involved in the result analysis.