Complications of brain tissue pressure monitoring with a fiberoptic device

Seventy-five patients with intracranial hypertension whose Glasgow Coma Score (GCS) was 8 or below and in whom intracranial pressure (ICP) was monitored were examined for complications of this procedure. In 20 of the 75 patients we used only an intraparenchymal fiberoptic ICP monitoring transducer, while, in the remaining 55 patients, who required CSF drainage, a ventricular drainage set (VDS) was used in addition to ICP monitoring. The duration of monitoring with the ICP transducer alone was approximately 5.1 ± 2.6 das (min. 1, max. 13) and that of ICP monitoring with VDS was 6.2 ± 3.1 days (min. 1, max. 13). In 8 cases a total of 9 complications were experienced (12 %). These complications were infection in 3 cases (4 %), epidural hematoma in 2 cases (2.7 %), disconnection in 2 cases (2.7 %) and contusion in 2 cases (2.7 %). Although none of the 44 patients who were monitored for less than 5 days experienced infection, 3 of the 31 patients monitored for longer than 5 days did experience infection (9.7 %) (p < 0.05). None of the 20 patients who underwent ICP monitoring only experienced infection. However, 3 of the 55 patients in whom the ventricular drainage set was implanted in addition to the transducer for ICP monitoring experienced infection (p < 0.05).Owing to its minimally invasive nature, low complication rate, and accuracy in monitoring the parenchyma pressure, the Camino fiberoptic intraparenchymal monitor has become the system of choice in our clinic.     

丙型肝炎患者血液、体液中HCVRNA检测及其传染性研究

通过对１６例（男７例，女９例）血清丙型肝炎病毒ＲＮＡ（ＨＣＶＲＮＡ）阳性的输血后丙型肝炎患者唾液、精液、阴道分泌物的ＨＣＶＲＮＡ检测及其配偶和子女的ＨＣＶ感染状况的调查，对丙型肝炎的血液外传播途径进行了研究。丙型肝炎患者唾液、精液、阴道分泌物中ＨＣＶＲＮＡ均有较高的检出率，其中以精液最高，达５７．１４％（４／７），唾液次之，为３１．２５％（５／１６），阴道分泌物最低，为２２．２２％（２／９）。家庭成员中，２例（１２．５０％）配偶感染ＨＣＶ，１６个家庭的子女无１例感染ＨＣＶ。２例引起家庭内传播者均为慢性丙型肝炎患者。结果显示：家庭内密切接触（包括性接触）存在传播ＨＣＶ感染的潜在危险性。     

大鼠骨髓间充质干细胞体外培养条件的优化及生物学特性

目的建立一种新的高效体外骨髓间充质干细胞纯化培养方法,并对所获得细胞进行生物学行为研究。方法采用全骨髓培养获得原代骨髓间充质干细胞,经体外成脂、成骨诱导分化并检测细胞表面分子表达对所获得干细胞进行鉴定,传代后低密度接种(3×103/cm2)结合机械擦除对所培养细胞进行纯化,并对未纯化及纯化细胞分别进行集落形成单位实验、生长曲线及细胞周期分析来研究其生物学特性。结果全骨髓贴壁法可以成功培养出骨髓间充质干细胞,细胞呈现干细胞特性生长;可在体外成功地进行成脂、成骨分化;阴性表面标记分子CD34、CD45表达率均小于2%,阳性表面标记CD73、CD90表达率均高于95%。经纯化后的细胞具有更优的生物学行为,表现在:克隆形成率达到(28.80±5.00)%(P<0.01);培养12d后细胞数量增加(26.18±4.80)倍(P<0.05);处于S+G2/M期的细胞比例达到(45.98±1.60)%(P<0.01)。结论低密度接种结合机械擦除方法可以获得高纯度骨髓间充质干细胞,且该细胞具有更佳的生物学特性。     

莫沙比利联合苁蓉通便口服液治疗老年性便秘疗效和安全性观察

目的观察莫沙比利联合苁蓉通便口服液治疗老年性便秘疗效和安全性。方法老年性便秘患者60例,随机分为三组,每组20例。A组给予口服莫沙比利5mg／次,3次/d,苁蓉通便口服液10mL／次,2次／d;B组单用莫沙比利;C组单用苁蓉通便口服液,疗程均为2周。记录患者服药前后大便间隔天数、大便性状的改变、排便困难程度改变及副反应。结果治疗2周后,三组总有效率分别为95％、50％和85％。结论莫沙比利联合苁蓉通便口服液治疗老年性便秘疗效优于两药单用,且不良反应小,安全性好。