Background
Intracranial hemorrhage (ICH) is a serious potential complication of stroke mechanical thrombectomy (MT). We evaluated the predictors of symptomatic ICH (sICH) after MT for patients with acute ischemic stroke (AIS).
Methods
This retrospective study analyzed 170 consecutive patients with anterior circulation large vessel occlusion (LVO) undergoing MT. Outcomes were stratified as no hemorrhagic transformation (HT), asymptomatic ICH (aICH) and sICH. RAPID-processed perfusion parameters included ischemic core volume (rCBF<30 %), hypoperfusion volume (Tmax>6 s), mismatch volume, and hypoperfusion intensity ratio (HIR). Multivariable logistic regression with backward stepwise selection identified independent sICH predictors from ten candidate variables spanning clinical, laboratory, imaging and procedural domains.
Results
Among 170 patients, any ICH occurred in 67 (39.4 %), of whom 22 met sICH criteria. Platelet counts, balloon dilatation, ischemic core volume, Tmax> 6 s volume and HIR differed significantly across groups (all p < 0.05). Door-to-puncture time was longer for aICH group than no HT group (159.82 ± 64.05 vs. 131.99 ± 68.47; p < 0.05). Compared with the aICH group, the sICH group had lower platelet counts (141.82 ± 43.56 vs. 176.98 ± 72.36; p < 0.05), a larger ischemic core volume (77.50 ± 61.71 vs. 31.88 ± 34.87; p < 0.05) and higher HIR (0.64(0.45, 0.80) vs. 0.40(0.15, 0.57); p < 0.05). Multivariable analysis identified ischemic core volume (OR 3.62, 95 %CI 2.16–6.67, p < 0.001) and thrombocytopenia (OR 6.53, 95 %CI 2.03–25.41, p = 0.003) as independent sICH predictors. The integrated model achieved robust discrimination (AUC 0.874, accuracy 85.6 %).
Conclusions
Ischemic core volume and thrombocytopenia independently predict sICH following MT.
扫码关注我们
求助内容:
应助结果提醒方式:
