目的分析静脉溶栓治疗首发急性缺血性脑卒中(Acute ischemic stroke,AIS)患者的预后影响因素及预测价值。方法选择2019年4月-2022年4月在溧阳市人民医院神经内科进行静脉溶栓治疗的首发AIS患者120例,根据改良Rankin量表(Modified rankin...目的分析静脉溶栓治疗首发急性缺血性脑卒中(Acute ischemic stroke,AIS)患者的预后影响因素及预测价值。方法选择2019年4月-2022年4月在溧阳市人民医院神经内科进行静脉溶栓治疗的首发AIS患者120例,根据改良Rankin量表(Modified rankin scale,mRS)分为预后良好组(n=61,<2分)和预后不良组(n=59,≥2分)。比较两组临床资料,从中筛选出首发AIS患者应用静脉溶栓治疗的预后危险因素,评估其对首发AIS患者应用静脉溶栓治疗的预测价值。结果预后不良组既往存在糖尿病史、大动脉粥样硬化分型占比大于预后良好组,发病至溶栓开始时间滞后于预后良好组,入院时美国国立卫生研究院卒中量表(National institute of health stroke scale,NIHSS)评分及血糖、纤维蛋白原水平高于预后良好组(P<0.05)。多因素Logistic回归分析发现,存在糖尿病史、发病至溶栓开始时间长、入院时NIHSS评分高、大动脉粥样硬化分型、高血糖、高纤维蛋白原为首发AIS患者应用静脉溶栓治疗后预后不良的独立危险因素(OR=4.627、4.831、5.124、5.043、4.669、4.821,P<0.05)。首发AIS患者应用静脉溶栓治疗后预后不良的曲线下面积(Area under curve,AUC)为0.812(95%CI:0.753~0.834),敏感度为0.67,特异度为0.86。结论既往存在糖尿病史、发病至溶栓开始时间长、入院时NIHSS评分高、大动脉粥样硬化分型、高血糖、高纤维蛋白原对预测首发AIS患者具有较高的敏感性和特异性。展开更多
This letter reports inlet flow disturbance effects on direct numerical simulation of incompressible round jet at Reynolds number 2500.The simulation employs an accurate projection method in which a sixth order biased ...This letter reports inlet flow disturbance effects on direct numerical simulation of incompressible round jet at Reynolds number 2500.The simulation employs an accurate projection method in which a sixth order biased upwind difference scheme is used for spatial discretization of nonlinear convective terms,with a fourth order central difference scheme used in the discretization of the divergence of intermediate velocity.Carefully identifying reveals that the inlet flow disturbance has some influences on the distribution pattern of mean factor of swirling strength intermittency.With the increase of inlet disturbance magnitude jet core cone slightly shortens,observable differences occur in the centerline velocity and its fluctuations,despite the negligible impacts on the least square fitted centerline velocity decay constant(B_u)and distribution parameter(K_u)for velocity profile in self-similar region.展开更多
文摘目的分析静脉溶栓治疗首发急性缺血性脑卒中(Acute ischemic stroke,AIS)患者的预后影响因素及预测价值。方法选择2019年4月-2022年4月在溧阳市人民医院神经内科进行静脉溶栓治疗的首发AIS患者120例,根据改良Rankin量表(Modified rankin scale,mRS)分为预后良好组(n=61,<2分)和预后不良组(n=59,≥2分)。比较两组临床资料,从中筛选出首发AIS患者应用静脉溶栓治疗的预后危险因素,评估其对首发AIS患者应用静脉溶栓治疗的预测价值。结果预后不良组既往存在糖尿病史、大动脉粥样硬化分型占比大于预后良好组,发病至溶栓开始时间滞后于预后良好组,入院时美国国立卫生研究院卒中量表(National institute of health stroke scale,NIHSS)评分及血糖、纤维蛋白原水平高于预后良好组(P<0.05)。多因素Logistic回归分析发现,存在糖尿病史、发病至溶栓开始时间长、入院时NIHSS评分高、大动脉粥样硬化分型、高血糖、高纤维蛋白原为首发AIS患者应用静脉溶栓治疗后预后不良的独立危险因素(OR=4.627、4.831、5.124、5.043、4.669、4.821,P<0.05)。首发AIS患者应用静脉溶栓治疗后预后不良的曲线下面积(Area under curve,AUC)为0.812(95%CI:0.753~0.834),敏感度为0.67,特异度为0.86。结论既往存在糖尿病史、发病至溶栓开始时间长、入院时NIHSS评分高、大动脉粥样硬化分型、高血糖、高纤维蛋白原对预测首发AIS患者具有较高的敏感性和特异性。
基金the financial support of the National Natural Science Foundation of China (11372303)
文摘This letter reports inlet flow disturbance effects on direct numerical simulation of incompressible round jet at Reynolds number 2500.The simulation employs an accurate projection method in which a sixth order biased upwind difference scheme is used for spatial discretization of nonlinear convective terms,with a fourth order central difference scheme used in the discretization of the divergence of intermediate velocity.Carefully identifying reveals that the inlet flow disturbance has some influences on the distribution pattern of mean factor of swirling strength intermittency.With the increase of inlet disturbance magnitude jet core cone slightly shortens,observable differences occur in the centerline velocity and its fluctuations,despite the negligible impacts on the least square fitted centerline velocity decay constant(B_u)and distribution parameter(K_u)for velocity profile in self-similar region.
