MỐI LIÊN QUAN GIỮA KẾT QUẢ ĐO OXY NÃO VÙNG VỚI MỘT SỐ ĐẶC ĐIỂM LÂM SÀNG VÀ HÌNH ẢNH HỌC Ở BỆNH NHÂN ĐỘT QUỊ NÃO CẤP

Abstract

Near Infra Red Spectroscopy NIRS is a noninvasive technique to measure the oxygen sarturation in the brain surface. The primary device only monitor the change of sarturation, then the advanced technique can monitor the absoluted value of brain oxygenation (Sarturation cerebral oxygenation-ScO2). The normal range of ScO2 from 58-82%, can be reduced to 10% depended on the lesion or pathology. We conducted the study to apply this technique on middle cerebral artery MCA) occlusion patient at the emergency center at Bachmai hospital. The result showed: the lesion side of MCA ischemic had the lower value of rSO2 than the normal side of the brain significantly statitic, (p < 0,05). In the patient who had artery resolution (recanal): rSO2 at 24h greater than on admission, while the value had no change in the unresolved group. With the cutoff point at rSO greater than 62%, 100% patient had artery resolution, otherwise 27,3% unresolved. The group who underwent thrombobectomy had recanalization on 24h, rSO₂ ≥ 62% if NIHSS < 10 compare to NIHSS >10; OR=0,057 (95% CI:0,006-0,588), p < 0,05. Conclusion: Regional oxygen sarturation value has been proved to be a predict factor to the lesion side and the restoration in MCA stroke patient.