Blood pressures immediately following ischemic strokes are associated with cerebral perfusion and neurologic function.

Abstract

The optimal range of blood pressure levels in the early phase of ischemic stroke with hypertension is still controversial. Based on our stroke registry database, we explored the relationship between blood pressure levels and cerebral perfusion in the early phase of ischemic stroke with hypertension and neurofunctional recovery at 3months after stroke. Total 732 stroke patients with hypertension were finally analyzed. Patients were divided into quintiles according to systolic blood pressure (SBP) and diastolic blood pressure (DBP) to perform multivariable logistic regression to analyze their relation with neurofunctional recovery, respectively. The cerebral perfusion levels displayed a reverse "U" shape curve with the change of blood pressure levels. Sufficient estimated cerebral blood flow (ECBF) in the early phase of ischemic stroke was associated with good neurofunctional recovery at 3months after stroke. The best neurofunctional recovery was observed in the middle quintiles with SBP at 161 to 177mmHg and DBP at 103 to 114mmHg, respectively. So maintaining appropriate blood pressure levels in the early phase of ischemic stroke might be beneficial to cerebral perfusion and neurofunctional recovery.