Abstract T P371: Utility of Cerebral Oximetry with Cerebral Blood Volume Index (CBVI) in Detecting Pediatric Strokes

Pediatric Strokes are increasing with recognition and imaging delays. Limited pediatric stroke knowledge, vague signs & symptoms and no reliable stroke detection tools is the cause. Improving recognition improves outcomes. Objective: To assess utility of Left & Right Cerebral rcSO2 and cerebral blood volume index (CBVI) in Pediatric Stroke Alert and Altered Mental Status (AMS) patients. Methods: Observational study of Stroke Alert & AMS patient’s Cerebral rcSO2 and CBVI. Stroke rcSO2 and CBVI values in stroke patients were compared to controls & AMS (no cerebral pathology) patients. Results: Controls (N=133), Stroke alert (N=25) & AMS stroke (N=52)'s rcSO2, CBVI means were consistent 0-60 minutes. Lower rcSO2 with or without CBVI readings correlated with stroke (Left rcSO2, CBVI (P<0.0001), Right rcSO2 (P=0.0038), CBVI (p=0.0006)). A 19.1% rcSO2 side difference had 100% PPV for stroke. Across 0-60 minutes, rcSO2, CBVI were consistent for stroke & type (Hemorrhagic or Ischemic) (P<0.0001). Left Stroke’s rcSO2, CBVI were lower than Right Strokes (P<0.0001). Hemorrhagic ipsilateral stroke and contralateral side had lower rcSO2, CBVI (P<0.001) then Ischemic. Conclusion: The rcSO2, CBVI difference between sidess objectively and consistently detected stroke, location, and stroke types (Hemorrhagic or Ischemic). A 19.1% rcSO2 differencehad had 100% PPV for detecting strokes demonstrating cerebral oximetry’s utility. Cerebral Oximetry with CBVI has shown its’ potential as an objective screening tool for identify pediatric strokes and types. Cerebral Oximetry with CBVI has potential for expediting stroke recognition and decreasing imaging time.