Application of laser speckle flowgraphy to evaluate cerebral perfusion after carotid endarterectomy

Cerebral hyperperfusion syndrome (CHS) after carotid endarterectomy (CEA) is devastating, and postoperative monitoring of cerebral perfusion is essential to prevent CHS. We report two cases of successful measurement of ocular blood flow using laser speckle flowgraphy (LSFG) for bedside assessment of the changes in cerebral perfusion after CEA. An 18.7% (case 1) and 47.7% (case 2) increase in ocular blood flow were measured postoperatively using LSFG compared with the baseline. LSFG might be applicable to evaluate cerebral perfusion after CEA.

Automated summary

We report two cases where laser speckle flowgraphy (LSFG) was successfully used to measure ocular blood flow for assessing changes in cerebral perfusion after carotid endarterectomy (CEA). Postoperatively, an increase of 18.7% (case 1) and 47.7% (case 2) in ocular blood flow was measured using LSFG compared to baseline. LSFG may be a useful tool for evaluating cerebral perfusion after CEA.