血钙水平与肾癌肿瘤大小、分期的相关性分析

目的分析肾细胞癌患者血钙水平和肿瘤大小与分期的相关性，从而进一步发现与病情相关的规律和了解病情。方法按照血钙水平将肿瘤大小／分期相应地分3组，即降低、正常和升高各3组。利用SPSS10．0软件，对3组不同的肿瘤大小／分期病例进行差异性分析和相关性研究。结果3组不同的肿瘤大小差异性分析（Kruskal-wallisH）显示，X^2=4．768，df=2，P=0．092；Spearman相关分析显示相关系数为．0．166，P=0．029。3组不同的肿瘤分期差异性分析（Kruskal-Wallis H）显示，X^2=4、277，df=2，P=0．118；Spearman相关系数为．0．157，P=-0．039。结论3组不同的肿瘤大小之间差异性无统计学意义，血钙水平与肿瘤大小间存在负相关；3组不同的肿瘤分期之间差异性无统计学意义，血钙水平与肿瘤分期间存在负相关。     

Safety and efficacy of oral nemonoxacin versus levofloxacin in treatment of community-acquired pneumonia: A phase 3, multicenter,randomized, double-blind,double-dummy,active-controlled,non-inferiority trial

Background/Purpose

Nemonoxacin is a novel nonfluorinated quinolone with excellent in vitro activity against most pathogens in community-acquired pneumonia (CAP), especially Gram-positive isolates. The purpose of this study was to assess the efficacy and safety of nemonoxacin compared with levofloxacin in patients with CAP.

人体肠道生物力学特性的研究

为探讨人体肠道的生物力学特性，采用电子拉伸机对人体肠道进行一维拉伸试验。结果表明，人体肠道应力-应变关系为指数函数关系。人体肠道各段的指数系数a值接近，但材料常数C有一定的差异，说明肠道各段应力-应变趋势是一致的。在一定应力下，肠道各段轴向与环向的相对伸长率是不同的，表明人体肠道具有各向异性的特性。在一定应变下，肠道各段的增量弹性模量不同，结肠增量弹性模量相对较小，因而更容易发生变形。本研究为肠道内窥镜机器人的研制提供了理论基础。     

巨大肺大疱伴胃食管反流1例

肺大疱在临床工作中常见,但是巨大肺大疱伴胃食管反流症状的患者较少见.巨大肺大疱易被误诊为气胸,如果伴有胃食管反流症状,易误诊为胃食管反流性哮喘,本例患者经过正确诊断和手术治疗痊愈,对我们拓宽胃食管反流症状病因的思考非常重要.     

Optimal freezing and thawing for the survival of periphheral nerves in severed rabbit limbs

This study aimed to investigate the optimal freezing and thawing procedures for the survival of peripheral nerves in severed rabbit limbs. Twenty New Zealand White rabbits were randomized into four groups: normal control, slow-freezing fast-thawing, slow-freezing slow-thawing, fast-freezing fast-thawing, with five animals in each group. The hind limbs of the rabbits were severed at 1 cm above the knee joint. The severed limbs were cryopreserved with various freezing and thawing procedures. The sciatic nerves were harvested and trypsinized into single nerve fibers for morphological evaluation. The cell viability of the nerve fibers was examined by staining with Calcein-AM and propidium iodide. The fluorescent intensity of the nerve fibers was measured with a laser scanning confocal microscope. The morphology of the nerve fibers in the slow-freezing fast-thawing group was very similar with that of the normal control group, with only mild demyelination. The slow-freezing fast-thawing group and slow-freezing slow-thawing group showed severely damaged nerve fibers. The fluorescent intensities of the nerve fibers was significantly different among the four groups, with a decreasing order of normal control, slow-freezing fast-thawing, slow-freezing slow-thawing, and fast-freezing fast-thawing (P < 0.05). Of the various cryopreservative procedures, slow-freezing fast thawing has the minimal effects on the survival of nerve fibers in severed rabbit limbs.     

尺神经前移在肱骨髁间骨折手术治疗中的应用

目的初步探讨尺神经前移在肱骨远端髁间骨折治疗中的手术方法及效果。方法 29例C型肱骨髁间骨折患者切开复位内固定后全部进行尺神经预见性前移。结果 29例随访患者中追踪8~38个月,平均18个月,术后2~4个月骨折全部愈合。按照Mayo肘关节功能评分标准,优良率79.3%,尺神经功能情况根据Asami评价标准,优19例（65.5%）,良7例（24.1%）,一般2例（6.9%）,差1例（3.4%）,其中3例功能不满意者均为术前既有尺神经损伤症状。结论尺神经前移可作为肱骨远端髁间型骨折手术治疗中的常规治疗方法,可有效避免尺神经麻痹现象发生。     

5%咪喹莫特乳膏治疗外阴鳞状上皮内瘤样病变的疗效及安全性分析

目的探讨5%咪喹莫特乳膏治疗外阴鳞状上皮内瘤样病变（VIN）的疗效和安全性。方法对42例门诊就诊的VIN患者给予5%咪喹莫特乳膏治疗,逐渐增加用药量至每周外用4次,疗程16周,期间每2周复诊1次,观察皮损变化及不良反应情况。疗程结束后再次行组织病理检查。结果实际完成疗程者36例,其中痊愈21例,好转10例,总有效率为86.1%。VINⅠ、VINⅡ的治愈率明显高于VINⅢ,VINⅠ的有效率也高于VINⅢ。好转患者皮损面积平均缩小57.2%。在治疗过程中,没有患者疾病进展或被诊断为鳞癌。20例患者出现不同程度的不良反应,主要表现为轻、中度的局部刺激症状,无一例患者出现系统症状,减量或暂时停药2周后均恢复正常治疗。结论外用5%咪喹莫特乳膏治疗VIN安全有效,患者耐受性好。     

面罩机械通气治疗急性Ⅱ型呼吸衰竭18例临床分析

目的　分析面罩机械通气 (MMV)治疗急性Ⅱ型呼吸衰竭的疗效。方法　对 18例急性Ⅱ型呼吸衰竭患者采用同步间歇性指令通气 (SIMV) +压力支持通气 (PSV ) +呼气末正压通气(PEEP)或PSV +PEEP通气方式进行面罩机械通气 ,并观测通气前后动脉血气变化。结果　通气治疗前后动脉血气比较 ,通气后pH、PO2 和SaO2 明显回升 (P <0 .0 5～P <0 .0 1) ,PCO2 明显回降(P <0 .0 1)。 18例患者中 ,12例好转出院 ,6例因通气失败死亡。结论　面罩机械通气是治疗急性Ⅱ型呼吸衰竭的重要手段之一。