前列腺素E_1治疗重型肝炎241例临床分析

目的;前列腺素E_1(PGE_1)治疗重型肝炎的疗效观察。方法:465例重型肝炎患者随机分为治疗组241例和对照组228例,在综合疗法的基础上治疗组加用前列腺素E_1注射液40μg/d。结果:前列腺素E_1治疗组存活155例(64.3％),较对照组存活51例(22.3％)为高(P<0.01)。结论:前列腺素E_1可提高重型肝炎存活率。     

蛛网膜下腔-硬膜外联合阻滞麻醉用于分娩镇痛的临床探讨

目的:探讨分娩镇痛的效果及对产妇、母婴的影响。方法:在全程胎心监护下,对108例产妇采用蛛网膜下腔-硬膜外阻滞麻醉分娩镇痛(观察组),与同期108例未干预产妇(对照组)比较镇痛效果、产程进展、分娩方式及新生儿窒息情况。结果:观察组分娩镇痛效果非常显著(P<0.01),而产程进展、分娩方式、产后出血量及新生儿窒息情况两组比较均无显著性差异(P>0.05)。结论:罗哌卡因、芬太尼蛛网膜下腔-硬膜外联合阻滞麻醉用于分娩镇痛效果显著,对母婴无不良影响。     

枝化状聚乙二醇交联改善猪去细胞主动脉瓣的力学性能比较

Objective Branched polyethylene glycols (PEG) with different molecular weight were cross-linked to the porcine decellularized aortic valve (DAV) and the effects of PEG cross-linking on the mechanical properties were investigated. Methods A total of 25 porcine DAVs were randomly assigned into 5 groups: PEG3400, PEG8000, PEG12000, PEG20000 and control. The reactive time was 4 h at room temperature. The efficiency of crosslinking was calculated by measuring the residual thiol group. The mechanical properties were obtained by static tensile test. Results The efficiency of crosslinking was 92. 40% , 89. 88% , 87. 87% and 87. 46% in PEG3400, PEG8000, PEG12000, PEG20000 groups, respectively. As compared with other groups, the PEG3400 group had significantly greater increase in the crosslinking degree (P ＜ 0. 05). Tensile test showed the tensile strength of PEG12000 and PEG20000 groups was (3. 22 ±0.41) and (3. 19 ±0. 15) MPa, respectively, and significantly different from that in control group (P ＜ 0. 05). The tensile strength and young' s modulus had a positive correlation with the molecular weight of PEG. Conclusion Branched PEG with the molecular weight of 12 000 Da and 20 000 Dacan effectively crosslink to the porcine decellularized aortic valves and improve their mechanical behaviors, and has the potential to be used as the material of fabricating new hybrid scaffold of tissue engineering heart valves.     

多层螺旋CT血管造影在急性肠系膜血管栓塞中的应用

目的：探讨多层螺旋CT血管造影（CTA）在急性肠系膜血管栓塞（AMI）中的应用价值,以提高该病的,陆床诊断率。方法：回顾性分析13例AMI的多层螺旋CT血管造影表现及VR、MIP、MPR后处理图像。结果：8例可见栓塞的直接征象,表现为血管内完全或不完全充盈缺损;间接征象11例可见肠壁增厚水肿,肠腔扩张积液7例,薄纸样肠壁改变4例,血管“缆绳”样改变2例,肠系膜水肿10,腹腔积液8例,增强后肠壁密度异常10例。结论：CTA22．其后处理技术值得在AMI诊断中推广应用。     

小脑大面积梗死手术治疗效果探讨

<正>小脑大面积梗死可造成第四脑室受压,影响脑脊液循环,引起急性颅内压增高,严重者可发生脑疝,危及生命。以往报道小脑大面积梗死非手术治疗的病死率高达80%[1]。我科2000年1月至2010年12月收治小脑梗死患者34例,其中采用手术治疗小脑大面积梗死20例,病死率仅为15%,总结如下。1资料与方法1.1临床资料:34例患者中,男性23例,女性11例,年龄     

乙型肝炎患者胃十二指肠粘膜病变分析

本文分析了１６３例乙型肝炎患者胃镜结果，发现其粘膜病变发生率明显高于正常人群。且其病变程度与临床各型肝炎存在一定相关性，尤其是肝硬化伴门脉主患者胃十二指肠粘膜病变发生率更高。其发病机理可能与肝功能严重变损，内毒素血症，高胃泌素血症等因素有关。     

多排螺旋CT对卵巢囊性畸胎瘤的诊断价值

目的：探讨多排螺旋CT对卵巢囊性畸胎瘤的诊断价值.材料与方法：分析我院2012年至2013年的16例经手术、病理证实的卵巢脐胎瘤的CT表现.结果：16例病例中共有畸胎瘤18个,其中肿瘤内有脂肪密度的15例（出现脂液平3例、浮球征1例）,肿瘤内出现钙化或骨化11例,瘤壁钙化3例.结论：卵巢囊性畸胎瘤在CT检查中大都具有特征性表现,多排螺旋CT对大多数囊性畸胎瘤都能作出正确诊断.     

纤维结肠镜摘除息肉583枚分析

目的探讨结肠息肉的病变及电凝切息肉术一次适当增加摘除枚数及随访的必要性。方法应用高频电凝切、热活检钳一次钳除息肉１６枚～４５枚，电凝切摘除２１枚～６５枚，术后观察３ｄ～５ｄ，定期随访１ａ～３ａ。结果发现１例直径０．８ｃｍ绒毛状腺瘤恶变与腺瘤共存，２例管状腺瘤恶变，１４次摘除息肉２６７枚无大出血穿孔等并发症，第１年随访发现４例息肉１５枚，第２年随访发现３例息肉８枚，第３年随访阴性。结论纤结镜摘除息肉每次适当增加摘除枚数是安全可行的，息肉不管大小应争取早期摘除及全瘤病检，定期随访是必要的，以防止遗漏及再发。