EB病毒VCA-IgA抗体水平与鼻咽癌病人远期疗效关系

目的：分析ＥＢ病毒血清学ＶＣＡ－ＩｇＡ抗体与鼻咽癌病人远期疗效关系，为临床治疗提供参考依据。方法：１９８５年本院病理确诊的５２２例鼻咽癌病人，按治疗前、后ＶＣＡ－ＩｇＡ抗体滴度分为三组：低滴度组（１：５～１：２０）、中滴度组（１：４０～１：８０）和高滴度组（１：１６０以上），随访１０年，比较生存率的异同。结果：治疗前鼻咽癌病人高滴度组１０年生存率低于低滴度组（Ｐ＜０．０５），但和中滴度组差别无显著性（Ｐ＞０．０５）。治疗后三组病人１０年生存率比较，高、中滴度二组差别无显著性（Ｐ＞０．０５），但低于低滴度组。结论：ＥＢ病毒ＶＣＡ－ＩｇＡ抗体水平可以作为估计预后的重要参考依据，与远期疗效有密切关系。     

Mortality: What Are the Roles of Risk Factor Prevalence,Screening, and Use of Recommended Treatment?

CONTEXT: Despite advances in early detection and prevention of cervical cancer, women living in rural areas, and particularly in Appalachia, the rural South, the Texas/Mexico border, and the central valley of California, have had consistently higher rates of cervical cancer mortality than their counterparts in other areas during the past several decades. METHODS: This paper reviews the published literature from 1966 to July 2002 to assess three potential pathways underlying this excess mortality--high human papilloma virus (HPV) prevalence, lack of or infrequent screening and advanced disease at diagnosis, and under-use of recommended treatment and shorter survival. FINDINGS: Living in rural areas may impose barriers to cervical cancer control, including lack of transportation and medical care infrastructures. Population characteristics that place women at greater risk for developing and dying from cervical cancer, such as low income, lack of health insurance, and physician availability, are concentrated in rural areas. Published data, however, are insufficient to identify the key reasons for the observed mortality patterns. CONCLUSIONS: At this time, given the lack of definitive evidence in the published literature, decisions about priorities in areas with high rates of cervical cancer mortality will depend on knowledge of current levels of screening, incidence, and stage distribution; and service delivery infrastructures, resources, and acceptability of interventions to the target population.     

流媒体技术在中医药教学中的应用

进入21世纪,我校的在校学生已达1万多人,繁重的教学任务迫切需要我们利用现代教育技术来提高教学水平.     

角膜塑型术矫正近视二年后的临床观察

目的 :探讨角膜塑型术 (Orthokeratology ,简称Or tho K镜 )矫正近视的远期疗效 ,了解其对近视的矫正及控制近视进展的效果。并观察其安全程度。方法 :配戴Ortho K镜二年以上的青少年近视眼患者 ,共 86例 16 6眼 ,平均年龄(15 .5± 2 .6 )岁 ( 10～ 2 5岁 ) ,平均屈光度 ( - 4 .0 2± 1.78)D( -1.5～ - 7.0D)。对配戴前、后的角膜曲率、角膜地形图、角膜厚度、眼轴、眼压进行检测 ,平均观察期为 ( 2 8.2 5± 3.74 )个月。结果 :配戴前后平均裸眼视力分别为 0 .2 1± 0 .10和0 .99± 0 .2 3,差异有非常显著性 (P <0 .0 1) ;配戴前后角膜水平曲率均值分别为 ( 4 3.0 5± 1.10 )D和 ( 4 0 .84± 1.38)D ;配戴前后眼轴 (眼球前后径 )均值分别为 ( 2 4 .93± 0 .82 )mm和( 2 5 .16± 0 .82 )mm ,每年眼轴增长均值为 ( 0 .12± 0 .4 1)mm ;配戴前后角膜厚度均值分别为 ( 0 .5 6 5± 0 .0 30 )mm和 ( 0 .5 5 7±0 .0 34)mm ,配戴后角膜厚度平均变薄 0 .0 0 9mm ,差异有显著性 (P <0 .0 1) ;配戴前后眼压均值分别为 ( 15 .95± 2 .92 )mmHg和 ( 15 .35± 2 .6 0 )mmHg ,配戴后眼压平均下降 0 .6 0mmHg,差异有显著性 (P <0 .0 1)。配戴Ortho K镜期间有 79眼发生过角膜点状浸润 ,占配戴眼数的 4 7.31%。结论 :Or t     

62例咽旁间隙肿瘤临床分析

目的：探讨咽旁间隙肿瘤的诊断和治疗方法及熟悉咽旁间隙解剖与肿瘤关系。方法：回顾性分析62例咽旁间隙肿瘤的临床资料。结果：咽旁间隙肿瘤中病理类型较多,但以神经鞘膜肿瘤比例较大,占41.9%,混合瘤22.6%,畸胎瘤、错构瘤、脊索瘤、恶性淋巴瘤及脑膜瘤等共占35.5%。进行以颈侧入路为主的4种手术入路,2例肿瘤复发（1例神经鞘膜瘤,1例转移癌）,再次手术治愈,其余均一次性手术治愈。结论：咽旁间隙肿瘤临床表现复杂,病理类型多样,肿瘤预后较好。其诊断较难,除症状体征外,CT、MRI及B超对咽旁间隙肿瘤的诊断有重要价值。手术径路是根据患者体征、影像学特征结合肿瘤位置、大小及性质而最终确定。颈侧入路为主要手术途径,气管切开为预防窒息措施。     

Novel Amdoparvovirus Infecting Farmed Raccoon Dogs and Arctic Foxes

A new amdoparvovirus, named raccoon dog and fox amdoparvovirus (RFAV), was identified in farmed sick raccoon dogs and arctic foxes. Phylogenetic analyses showed that RFAV belongs to a new species within the genus Amdoparvovirus of the family Parvoviridae. An RFAV strain was isolated in Crandell feline kidney cell culture.