脊髓损伤的康复治疗体会

我院自1997年6月～2004年9月共收治脊髓损伤病人32例，现就其康复治疗体会报道如下。     

崇文区健身器材卫生状况调查

目的：了解健身场所健身器材的卫生状况,为制定卫生标准提供依据。方法：随机抽取14家健身场所的健身器材为调查对象,选择营业高峰期间对其健身器材进行检测。结果：健身俱乐部的健身器材微生物污染程度高于健身附属场所,大型健身场所微生物污染程度明显高于中型、小型场所,操厅的微生物污染相对于有氧区、力量区严重,健身器材中以扶杆、健身球、形体垫子及力量机的微生物污染最为严重。结论：健身器材的微生物污染严重,从业人员缺乏卫生消毒知识,应尽早将健身场所纳入《公共场所卫生管理条例》管理范畴,并制定相应的国家卫生标准,加强对从业人员的卫生宣教,从而有效改善健身器材卫生状况。     

~(60)钴辐射降低海产食品中亚硝胺及前体物的研究

~(60)钻辐照能有效地降低食品中亚硝胺及亚硝酸盐含量。虾皮含54.6ppb NDMA,经~(60)钻照射10和20 kGy后,NDMA分别减少83.9％和96.6％。其作用在水溶液中优于食品样。亚硝胺的主要降解产物是相应的胺和亚硝酸,降解后无重合成现象。水分可以影响辐射破坏亚硝胺。~(60)钻辐射对硝酸盐无分解作用。     

腹腔内疝的CT表现

腹腔内脏器穿过腹膜或膜突入另一腹腔内间隙称为腹腔内疝（internal abdominal hernias）。最常表现为一段小肠嵌入正常或异常的腹腔内孔道，引起急性小肠梗阻。作为疝口的结构可以是腹腔内的正常解剖结构，如裂孔、隐窝、陷窝等，     

肱骨髁上骨折35例报告

肱骨髁上骨折是肘部常见的一种损伤，因解剖和结构因素多发生于10岁以下儿童，常合并神经、血管损伤，若损伤太重或处理不当容易致残。我院自1999年以来对35例不同方式的治疗，除1例并发缺血性肌挛缩外，其余34例均恢复良好，现报告如下：     

兔动静脉短路环法诱导组织工程骨支架材料血管生成的初步研究

Objective To compare the effects of 2 vascular carriers, arteriovenous loop and arteri-ovenous bundle, on inducing angiogenesis in coral scaffold of vascularized tissue-engineered bone in animal models.Methods Thirty-six adult male New Zealand rabbits were randomized into 2 even groups.In group A, an arteriovenous loop (AVL) was formed by microsurgical anastomosis at the proximal ends between the femoral poptiteal artery and vein, and placed in the circular side groove of the coral block (6 mm × 8 mm × 10 mm) .In group B, flow-through vessels bundles of both femoral artery and vein were placed in the side grooves of the coral block.All the implants in 2 groups were wrapped by a micro-porous expand-ed-polytetrafluoroethylene (ePTFE) membrane, and fixed subcutaneously by suturing.Evaluation methods included gross morphological observations, histological examinations, India ink perfusion and vascular casting after 2, 4, 6 weeks.The density of blood vessels was analyzed by the statistical software SPSS 10.0.Results All the corals were encased by newly formed fibrovascular tissues in 2 groups.Ink-stained vessels distributed the surfaces and side grooves, and invaded the interspaces of corals.The degree of vascularization increased over the course of experiment.Blood vessel density demonstrated a significant continuous increase between 2 and 6 weeks after implantation in group A.The mean value of blood vessel density in group A (2 weeks 276.60±4.67, 4 weeks 517.20±10.66, 6 weeks 707.00 ±11.87) was significantly higher than in group B (2 weeks 153.60 ±7.16, 4 weeks 269.40±6.80, 6 weeks 279.20±6.53) (P <0.01).Vascular casting showed that in group A, significant blood vessels sprouted from all areas of the loop, espe-cially at the entrance of the arteriovenous pediele where the small tubes were densely interconnected.In group B, however, no blood vessels sprouted from the arteriovenous bundles and only some small vessels grew from the entrance and exit.Conclusions A vascularized coral model can be constructed by inserting an ar-teriovenous loop or an arteriovenous bundle, useful in vascular bone tissue engineering.The former, however, have stronger abilities to induce angiogenesis than the latter.     

Hunt综合征血酯酶标记T细胞动态观察

成人带状疱疹偶而侵犯面神经膝状节,引起以面神经瘫痪为主的一组症状,名为Hunt综合征。本文报告12例,并作了外周血酯酶标记T细胞的动态观察。 一般资料 12例中男8例,女4例。平均年龄为40.9(16～70)岁。病前患有感冒发烧史者5例,另7例伴有其它慢性躯体疾病。临床表现:耳部疱疹12例(右侧8例,左侧4例);耳部剧痛11例,轻度发烧2例,患侧头痛1例;眩晕9例(其是1例不能站立、2例伴有恶     

实时三维超声心动图定量评价左心室容量-时间曲线的可行性与准确性研究

目的:探讨实时三维超声心动图(RT-3DE)定量评价左心室容量-时间曲线的可行性及准确性。材料和方法:以心脏磁共振(CMR I)为“参考标准”,应用RT-3DE评价31例健康志愿者左心室容量-时间曲线,获得峰值排空率(PER)、峰值充盈率(PFR)等左心室功能指标。结果:30例健康志愿者获得了内膜边界清晰的三维图像和左心室容量-时间曲线;RT-3DE图像采集及分析时间明显短于CMR I;PER,PFR测值RT-3DE与CMR I间无统计学差异(P>0.05),具有良好的相关性(r分别为0.913,0.786)。结论:RT-3DE是一种定量评价左心室容量-时间曲线的可行、准确的新方法。     

肝脏磁共振造影剂的种类及临床应用

肝脏MR造影剂分为 4大类:(1)分布于细胞外间降或间质间隙的,如Gd DTPA;(2)分布于网状内皮细胞系统或巨噬细胞 单核细胞吞噬细胞系统的,如SPIO;(3)肝细胞选择性的,如Mn-DPDP,Gd—BOPTA,Gd-EOB-DTPA;(4)血管内或血池性MR造影剂,如USPIO,AMI-227。本文详细介绍了上述4类肝脏MR造影剂的构成、作用机制、临床应用及影像特点,并介绍了肝脏MR造影剂今后发展的方向。     

以零价铜为催化剂的“活性”可控自由基聚合反应

研究了零价铜为催化剂,以ＣＣｌ４为引发剂,在２,２’－邻二吡啶（ｂｐｙ）或１,１０－邻二氮菲（ｐｈｅｎ）存在下的苯乙烯或甲基丙烯酸甲酯的“活性”／可控自由基聚合反应。研究结果表明：聚合过程中ｌｎ（［Ｍ］ｏ／［Ｍ］）与反应时间成线性增长关系,同时生成的聚合物的数均分子量与单体转化率也成线性增长关系,聚合过程呈现“活性”特征。