TỐC ĐỘ DÒNG CHẢY ĐỘNG MẠCH NÃO GIỮA TRÊN SIÊU ÂM DOPPLER XUYÊN SỌ SAU LẤY HUYẾT KHỐI Ở BỆNH NHÂN NHỒI MÁU NÃO CẤP

Abstract

Objective: To evaluate the middle cerebral artery (MCA) velocity using transcranial Doppler ultrasonography (TCD) within 72 hours after mechanical thrombectomy (MT) and analyze factors related to MCA velocity index. Method: A retrospective study, crosssectional description with revascularization TICI 2b-2c-3 (Thrombolysis in Cerebral Infarction) post- thrombectomy after acute ischemic stroke, patients underwent brain MRI 24 hours post-MT and TCD within 72 hours post-MT. Result: 26 patients participated in the study (mean age 63 ± 18 years, 47% female). Eight patients had a MCA velocity index ≥1.3 and 18 patients had a MCA velocity index <1.3. Four hemorrhagic transformation patients exhibited a MCA velocity index ≥1.3, while 10 hemorrhagic transformation patients had an MCA velocity index <1.3, showing no significant difference (P = 0.8). NIHSS scores at discharge between the two MCA velocity index groups did not significantly difference (5.5 [3.75-13.2] vs. 3.5 [1.00-7.00], p=0.13). However, there was a correlation between MCA velocity index and thrombectomy time (P < 0.01). Conclusion: Our study did not demonstrate a relationship between MCA velocity index and hemorrhagic transformation, as well as patient outcomes post-discharge.