新型输送型球囊扩张导管在颅内动脉狭窄治疗中的临床应用研究

目的：探讨新型输送型球囊扩张导管(Fastunnel)在颅内动脉粥样硬化狭窄介入治疗中的应用效果。方法：2021年11月至2022年2月,我们使用新型输送型球囊扩张导管对10例颅内动脉粥样硬化狭窄的患者进行了球囊扩张+支架成形术。收集并分析了患者的基线情况、影像学特点、治疗情况及围手术期情况。结果：男6例,女性4例,平均年龄(62.7±6.7)岁。10例患者均成功接受手术治疗,手术时长为16~65(37.3±18.2)min,治疗过程所受辐射剂量为1381~4901(2643.7±1131.7)mGy,剂量面积乘积(DAP)值为5707~38112(17526.8±10809.5)μGym₂^。围手术期无出血及缺血相关并发症。结论：输送型球囊扩张导管具有较好的安全性,能有效地简化手术步骤、缩短手术时间,对减少患者及医生所受射线剂量。     

Clinical and laboratory features of severe and complicated falciparum malaria the experience from Gonder Hospital

Over a period of 6 months in 1988, 104 patients with severe and complicated falciparum malaria were admitted to the Gonder College Hospital (GCH), Gonder, Ethiopia; 85 male (81.7%) and 19 female (18.3%). The age ranged between 14 and 70 years with a mean age of 31 years. Eighty-one patients (78.3%) had moved from a nonendemic to a malariaendemic area shortly before their illness. Altered state of consciousness, hyperparasitaemia and severe anaemia were the most frequent complications found. Fifty-three patients (51.0%) died. Non-immune status and unknown duration of symptoms were significantly associated with mortality. Among those who died, comatose state on admission, hyperparasitaemia and acute renal failure were more frequently seen. Forty-six (86.8%) had developed two or more complications and 15 (28.3%) had superimposed bacterial infections. Inadequate preventive measures and treatment facilities may be two important factors accounting for the high mortality.     

川续断中皂甙Ⅸ和Ⅹ的结构研究

从川续断(Dipsacus asper Wall.)根的乙醇提取物中得到二个新三萜皂甙(Ⅸ和Ⅹ),根据光谱分析和化学反应,其结构分别确定为3-O-[β-D-吡喃木糖(1→4)-β-D-吡喃葡萄糖(1→4)][α-L-吡喃鼠李糖(1→3)]-β-D-吡喃葡萄糖(1→3)-α-L-吡喃鼠李糖(1→2)-α-L-吡喃阿拉伯糖-常春藤皂甙元(Ⅸ)及其28-O-β-D-吡喃葡萄糖(1→6)-β-D-吡喃葡萄糖酯甙(Ⅹ)。     

锁骨三维有限元模型的全程数字化构建

目的:采用有限元分析的方法构建锁骨三维模型,以期为锁骨骨折、骨不连的治疗,内固定的选择提供生物力学理论依据。方法:实验于2005-02在上海长海医院骨科完成。采用西门子SOMATOM Volume Zoom CT机对一健康成年男性自愿者(26岁)的锁骨进行CT断层成像,得到锁骨横截面图,将所得CT扫描图象以DICOM格式存入DELL个人计算机并按扫描顺序逐张扫描图片中骨骼周围的软组织,利用大型有限元分析软件ANSYS 7.0建立锁骨三维模型,采用三维十结点四面体实体单元对模型进行网络划分及计算。结果:获得了精确的锁骨多排螺旋CT扫描数据,断层间距为1mm。利用数据建立了58111个结点,26930个单元的锁骨三维有限元模型,实现了整个建模过程的全数字化。结论:全程数字化构建锁骨三维有限元模型,客观反映了锁骨真实解剖形态及生物力学行为。