皮质发育障碍模型的建立及其致痫敏感性的研究

目的:建立皮质发育障碍模型,探讨皮质发育障碍模型的敏感性。方法:在SD大鼠孕17d腹腔注入1,3-二氯乙烯-亚硝基脲(BCNU)制作皮质发育障碍模型;Nissl染色观察P60d仔鼠病理变化;选取P60d雄性仔鼠,腹腔注射氯化锂-毛果芸香碱,分别比较两组大鼠癫发生的潜伏期、持续状态时间和死亡率。结果:同龄仔鼠脑组织湿重实验组比对照组显著减轻(P<0.01);Nissl染色显示皮质变薄、皮质层次紊乱、海马区域异位细胞异常聚集;有皮质发育障碍的仔鼠注射氯化锂-毛果芸香碱后,癫发生的潜伏期显著缩短(P<0.01),癫持续状态时间延长(P<0.01),死亡率显著升高(P<0.05)。结论:BCNU致皮质发育障碍模型具有癫易感性。     

外科护理学教学中培养学生临床思维能力的探索

较好的临床思维能力是高护生综合索质的一个重要体现，也是一名优秀的临床护士必须具备的能力。在外科护理学教学中，通过改革课堂教学方法，注重实验教学，加强临床见习，变革考试形式，以培养和提高学生的临床思维能力。     

AO钢板内固定治疗跟骨骨折

目的 探讨复杂跟骨骨折治疗方法及AO钢板内固定价值.方法 应用AO钢板治疗累及距下关节的跟骨骨折24例,术中注意关节面复位和Bohler角的恢复.结果 24例病人经12～24个月随访,按照Fernandez评定标准:24例跟骨SandersⅡ-Ⅳ型骨折病人有18足评为优良.结论 距下关节面的复位和Bohler角的恢复,牢固的内固定和术后足够长时间的负重限制是成功的关键.     

人胚雪旺细胞组织工程神经修复坐骨神经缺损的实验研究

目的：探索人胚雪旺细胞作为组织工程的种子细胞修复周围神经缺损的可行性。方法：通过组织工程方法用PLGA导管和polyglactin 910纤维负载人胚雪旺细胞预先构置好人工神经，然后用于修复大鼠20mm的坐骨神经缺损，并与神经切断后原位缝合以及用单纯的PLGA导管进行修复的实验组进行对照。通过活体肢体功能观察、靶器官肌肉测量、电生理检测、辣根过氧化物酶示踪、连续组织切片图像分析以及透射电镜等检查神经再生情况。结果：人工神经修复组神经再生良好，效果接近于神经原位缝合组，明显优于单纯的PLGA导管修复组。结论：人胚雪旺细胞构建的人工神经可以修复20mm的周围神经缺损。     

Prediction and Detection of Secondary Hemorrhages after Thrombolytic Therapy in Ischemic Stroke

Abstract It is well established that thrombolytic therapy increases the risk of secondary intracerebral hemorrhage in ischemic stroke patients. However, the term “intracerebral hemorrhage” (ICH) covers a wide spectrum from tiny spots of blood to massive space-occupying hematoma. We will review the etiology and clinical consequences of secondary hemorrhage after thrombolysis in ischemic stroke patients and discuss the ability of magnetic resonance imaging (MRI) to predict this phenomenon. MRI is a highly sensitive tool for detection of hemorrhagic transformation after ischemic stroke. The definitions of a so-called symptomatic hemorrhage after ischemic infarction differ considerably and will also be described. Attributing a causal relationship of a clinical deterioration to a secondary hemorrhage is not easy and should be only addressed when it exceeds at least 30% of the infarct volume. In other patients, secondary hemorrhage might be regarded as side effect of reperfusion within the region with the most severe perfusion deficit. Cerebral microbleeds (CMBs) are a frequent finding in patients with leukoaraiosis and appear to be a general marker of various types of bleeding- prone small vessel disease and a predictor of recurrent vascular events. Current data do not support the hypothesis that the detection of CMBs is a useful diagnostic criterion for the exclusion of patients with CMBs from thrombolytic therapy. However, an increased risk for the rare patients with numerous CMBs can not be ruled out.      

Not enough there, too many here: understanding geographical imbalances in the distribution of the health workforce

Access to good-quality health services is crucial for the improvement of many health outcomes, such as those targeted by the Millennium Development Goals (MDGs) adopted by the international community in 2000. The health-related MDGs cannot be achieved if vulnerable populations do not have access to skilled personnel and to other necessary inputs. This paper focuses on the geographical dimension of access and on one of its critical determinants: the availability of qualified personnel. The objective of this paper is to offer a better understanding of the determinants of geographical imbalances in the distribution of health personnel, and to identify and assess the strategies developed to correct them. It reviews the recent literature on determinants, barriers and the effects of strategies that attempted to correct geographical imbalances, with a focus on empirical studies from developing and developed countries. An analysis of determinants of success and failures of strategies implemented, and a summary of lessons learnt, is included.     

肿胀法超声抽吸术治疗腋臭83例疗效观察

目的观察肿胀法超声抽吸术治疗液臭的效果,寻找一种治疗腋臭的新方法。方法在腋窝毛发区皮下注入肿胀液80~100ml,经5mm大小切口将超声探头在腋部皮下组织快速移动,直到皮肤发红发热为止,再用负压抽吸被乳化的皮下组织加压包扎。结果83例受术者,术后6~12个月随访,效果良好者76例(91.5%),有效5例(6.25%),无效2例(2.25%)。结论肿胀法超声抽吸术治疗腋臭,操作简单,不留瘢痕,安全有效,是目前治疗腋臭较为理想的方法。     

超高龄老年人脑损伤致伤因素分析及护理对策

目的 探讨老年人颅脑损伤的发病因素和护理措施.方法 对1999～2003年在解放军总医院定点就医的一组老年人群(年均18 492人)共210例颅脑损伤患者发病时的身体状况,发病率及受伤特点,病程及治疗和护理等临床资料进行回顾性总结.该组老年人在建档案时已被分为2个亚组:超高龄组年龄限(平均年龄79.75岁,1 978例)和老年组年龄限(平均年龄69.42岁,16514例).以同期其他人群的脑损伤187例作为对照组,并进行2组回顾资料的比较.结果 按意向处理分析397例均进入结果分析.发病率及受伤特点:超高龄组发病率明显高于老年组,多为摔伤;老年组和对照组均为交通伤占主要伤因.治疗及病程:对照组和老年组中均有超过80%患者接受手术治疗,而超高龄组仅有53.40%的患者接受手术治疗.预后:各组的死亡率和重残比率均无明显差别.结论 老年人群的脑损伤致伤原因主要是摔伤,同时多患有单器官或多器官的疾病;老年人脑损伤占用医疗资源多,但经积极治疗和采取有效的护理措施,仍可获得较好的疗效;回顾性资料记载超高龄组是能够检索到的国内外老年人脑损伤平均年龄最高的一组,对超高龄脑损伤的相关分析是有临床借鉴意义的.     

肱骨骨不连的手术治疗

目的探讨肱骨骨不连的手术治疗方法及疗效。方法1998年12月～2005年5月共收治肱骨骨不连患者25例,均为肱骨骨折内固定术后发生骨不连,其中3例并发骨髓炎,6例合并不同程度肱骨骨缺损,骨缺损长度为3～6cm。骨不连病程8个月～5年。15例行吻合血管游离腓骨移植,10例采用加压交锁髓内针进行肱骨固定并辅以自体骨植骨。结果术后25例均得到随访,时间6个月～6年2个月。吻合血管游离腓骨移植组中移植的腓骨段均与肱骨干形成骨性愈合,平均骨性愈合时间为3．1个月；交锁髓内针组平均骨愈合时间为3．8个月。按Crates和Whittle肩肘关节功能评价标准,腓骨移植组：优9例,良4例,差2例；交锁髓内针组：优5例,良3例,差2例。结论应用加压交锁髓内针辅以自体骨移植对硬化性肱骨骨不连是一种有效的外科治疗方法；对合并骨髓炎、大段骨缺损及严重骨质疏松的肱骨骨不连,采用吻合血管游离腓骨移植可一期进行修复与重建。