颅面部螺旋CT扫描技术及图像的质控

颅面部的 CT扫描检查主要包括颅脑面部上、下颌骨、中耳、内耳、鼻窦、眼眍、眼球及颞骨茎突等部位的扫描检查 ,上述部位的扫描检查的位置的摆法 ,层面的厚度、间距 ,扫描时间及螺距等参数的选择及扫描后图像的后处理工作对检查结果的诊断至关重要。上述参数任意一个选择不当及     

小剂量米非司酮用于紧急避孕临床观察

目的 观察一次性小剂量米非司酮用于紧急避孕的效果。方法征集无保护性交或避孕失败后72小时内就诊并符合条件的健康妇女100例，单次口服米非司酮10mg。结果失败1例，按照Dixon方法计算，避孕有效率为89．55％；受试的月经周期无明显改变且未出现明显副作用。结论小剂量米非司酮单次口服用于紧急避孕简单、有效、安全。     

拉米夫定阻断乙型肝炎病毒宫内传播的临床探讨

【目的】研究拉米夫定对HBsAg阳性孕妇的乙肝病毒 (HBV)宫内阻断作用。【方法】拉米夫定组 43例 ,孕 2 8周起口服拉米夫定 ,每天 10 0mg至产后 30d。对照组 5 2例 ,未予用药。两组孕妇均于孕 2 8周、分娩前 ,其新生儿于生后 2 4h内免疫接种前抽静脉血检测HBsAg、HBeAg及HBV的定量。【结果】拉米夫定组孕妇HBV的DNA水平显著下降 (P <0 0 5 ) ,其新生儿宫内感染率 (16 3% )明显低于对照组 (32 7% ) ,P <0 0 5。两组孕妇及其新生儿未发现有不良反应。【结论】携带HBV孕妇产前服用拉米夫定可有效减少HBV宫内感染发生率。     

云南省边境地区疟疾防治资源分配分析

目的 分析云南省边境地区疟疾资源分配状况与疟疾传播的关系，为合理分配疟疾资源提供依据。方法 收集中老、中缅、中越边境地区有关疟疾统计资料，研究导致疟疾流行的危险因素。结果 结果表明来自国外和国内的波及效应数值和强度效应综合反映了这些边境县所面临的潜在疟疾传播危险因素。结论 该地区的疟疾防治资源分配不合理，有待进一步改善。     

The parenting-crime connection

This paper examines delinquency as it relates to family influences.     

Cardiac rehabilitation and return to work after coronary artery bypass surgery

The work situation of 66 male patients who underwent elective coronary artery bypass surgery (CABS) and who had been randomly allocated to receive cardiac rehabilitation (group R) was compared with the work situation of 59 similar patients allocated to receive only standard care (group H). The follow-up time was one year. The proportions of subjects working in groups R and H were 26% and 20% (p=ns) before the CABS, 45% and 34% (p=ns) 6 months and 56% and 38% (p=ns) 12 months after the CABS, repectively. The increase in proportion of subjects who worked was significant in both groups at both 6 and 12 months after the CABS (p<0.05 for all changes). The increases were not significantly different between the whole groups, but in patients younger than 55 years of age, return to work was more frequent in group R than in group H (at 12 months 60% vs. 35%, p for the difference in change=0.02). Stepwise logistic regression analysis of the factors influencing return to work showed that a patient's judgement of his own working capacity as good 6 months after CABS (odds ratio (OR) 8.5, confidence interval (CI) 2.3–32.0), functional class 16 months after the CABS (OR 6.7, CI 1.8–24.5), his desire to work (OR 6.4, CI 1.6–26.0) and absence from work of less than 3 months before the CABS (OR 4.9, CI 1.2–20.2) were significant positive predictors of return to work 1 year after the CABS.     

陕西省2000～2002年麻疹流行病学分析及控制策略探讨

为了解陕西省麻疹流行状况 ,以加速控制麻疹 ,对陕西省 2 0 0 0～ 2 0 0 2年麻疹发病资料进行流行病学分析。结果显示 :陕西省 2 0 0 0～ 2 0 0 2年麻疹年平均发病率比 1997～ 1999年上升了 6 5 7%。病例分布广泛 ,流行模式为爆发和散发并存 ,局部麻疹爆发影响着全省的麻疹发病水平。 3～ 6月为麻疹高发季节 ,0～ 2岁和 6～ 8岁为麻疹高发年龄组。对麻疹病例的免疫史分析表明 ,2 5 %的麻疹病例未接种麻疹疫苗 (MV) ,2 4 %的病例免疫史不详。报告病例的年龄和免疫史状况说明 ,MV的初种和复种需加强 ,同时要在全省范围开展一定年龄组儿童的MV强化免疫 ,调整现行MV的免疫程序 ,健全麻疹监测系统。     

Leukemia clusters around nuclear facilities in Britain

He bas been retained for the defense by British Nuclear Fuelsplc in two suits in which leukemia and non-Hodgkin's lymphoma have been alleged to result from radiation exposures due to the operation of the nuclear reprocessing plant at Sellafield. This paper has been sent to the senior authors of the papers reporting clusters of leukemia or other malignancy in the vicinity of nuclear facilities in Britain and their comments invited. Subject to considerations of space and CCC style, these comments will be published as submited.