血液透析滤过治疗高钠血症的临床分析

目的　探讨血液透析滤过 (HDF)治疗高钠血症的临床效果。方法　对 16例高钠血症患者行HDF治疗 ,动态观察血清钠以调整置换液成分。结果　 16例患者经 2～ 8h连续性静脉 -静脉血液滤过后血钠开始下降 ,6～ 2 8h可降至正常。结论　血液滤过透析治疗高钠血症效果确切 ,安全性好     

Information Fusing Recognition of Traditional Chinese Medicine （TCM） Pulse State Based on Stochastic Fuzzy Neural Network

Based on the fuzzy characteristic of the pulse state and syndromes differentiation thinking mode of TCM, an information fusing recognition method of pulse states based on SFNN （Stochastic Fuzzy Neural Network） is presented in this paper. With the learning ability in parameters and structure, SFNN fuses the measurement information of three pulse-state sensors distributed in Cun, Guan, and Chi location of body for the pulse state recognition. The experimental results show that the percentage of correct recognition with new method is higher than that by single-data recognition one, with fewer off-line train numbers.     

大黄提取液对脱矿釉质中钙溶出量的影响

目的 观察大黄提取液对脱矿釉质中钙溶出量的影响.方法 用不同浓度的大黄提取液和去离子水处理牙面后进行脱矿,ASCA生化分析仪对釉质脱矿后的脱矿液进行钙离子浓度的检测.结果 2 mg/ml和4 mg/ml大黄提取液处理后釉质钙溶出量<去离了水(P<0.01)、<1 mg/ml大黄提取液组(P<0.05),>2%氟化钠组但差异无统计学意义(P>0.05).1 mg/ml大黄提取液处理后釉质钙溶出量>2%氟化钠组(P<0.01),<去离子水组但差异无统计学意义(P>0.05).结论 2mg/ ml和4 mg/ml大黄提取液具有抑制脱矿釉质中钙溶出作用:2mg/ml大黄提取液为抑制钙溶出的起始有效浓度.     

内镜黏膜下剥离术治疗直肠类癌

目的探讨内镜黏膜下剥离术（ESD）治疗直肠类癌的应用价值。方法肠镜发现直肠黏膜下肿块后进行微探头超声检查，对诊断为类癌者应用头端弯曲的针形切开刀进行内镜黏膜下剥离术治疗：（1）黏膜下注射生理盐水抬高病灶，使病灶与肌层分离；（2）预切开病灶周围黏膜；（3）剥离病变下方黏膜下层结缔组织，完整切除病灶。结果5例直肠类癌患者，肿瘤直径0.4～1.2（平均1．1）cm，均成功完成ESD治疗。ESD手术时间（自黏膜下注射至完整剥离病变）20-45（平均35）min；术中创面少量出血，均经电凝、氩离子血浆凝固和止血夹成功止血。不需再次肠镜下止血。1例剥离深至肌层，出现皮下气肿，保守治疗好转。术后全部经病理确诊。基底和切缘未见病变累及。1个月后肠镜复查，创面基本愈合。结论ESD是治疗直肠类癌的新方法．以往需要外科手术切除的肿瘤通过ESD可以达到同样的治疗效果。     

因果告警相关方法在入侵检测系统中的应用与实现

针对某公司入侵检测系统产品误警率高,将因果告警相关方法融入到原系统中,对告警信息进行相关分析.利用DARPA 2000入侵检测场景数据集LLDOS1.0对新系统进行实验验证,结果表明,通过新系统可有效降低误警率,并可用图形的形式显示告警信息之间的因果相关关系,形象揭示出攻击者的攻击过程与攻击策略.     

老年及儿童外科病人输血治疗的特殊问题

严格掌握输血适应证已成为临床所共识。为提高临床用血的安全性，老年及儿童外科病人作为特殊群体，在输血治疗中的特殊性也应引起重视。     

大龄腭裂患者的手术治疗方法与语音治疗效果的对比研究

目的对单纯行裂隙关闭术和同期行咽后壁咽成形术的大龄腭裂患者,术前、术后发音效果进行检测分析和对比研究,评定手术的治疗效果.方法对24例同期行腭裂关闭术及咽后壁组织瓣咽成形术治疗和12例单纯行裂隙关闭术的大龄腭裂患者,术前、术后用鼻咽纤维镜检测其腭咽闭合情况,应用通用音频谱分析系统,对本组术后患者腭裂语音进行声学分析.结果所有腭裂修复术后,创口均达到临床Ⅰ期愈合,语音也有不同程度改善.大龄腭裂患者采用腭裂关闭及同期咽成形术的修复组,术后发音明显优于单纯行裂隙关闭组.结论大龄腭裂患者,采用腭裂关闭及同期咽成形术,是提高腭咽闭合和改善发音较好的手术方法.     

泌尿外科手助腹腔镜手术的进展

外科手术发展至今可分为三代:第一代为开放手术(open surgery);第二代为腹腔镜手术(laparoscop-ic surgery),其又可分为三个技术平台,包括标准腹腔镜手术(purelaparoscopic surgery或standardlap-aroscopic surgery)、手助腹腔镜手术(hand-assistedlaparoscopic surgery)和针式     

Anti-inflammatory effect of erythropoietin pretreatment on cardiomyocytes with hypoxia/reoxygenation injury and the possible mechanism

Objective： To investigate the anti-inflammatory effect of erythropoietin （EPO） pretreatment on cardiomyocytes exposed to hypoxialreoxygenation injury （H/R） and explore the possible mechanism.
Methods： The cultured neonatal rats＇ ventricular cardiomyocytes were divided randomly into 4 groups, control group （C group）, EPO pretreatment group （E group）, EPO and pyrrolidine dithiocarbamate （PDTC） pretreatment group （EP group） and PDTC pretreatment group （P group）. After 24 hours＇ pretreatment, the cardiomyocytes were exposed to H/R. After pretreatment and H/R, the expression of tumor necrosis factor- α （TNF- α ） gene in all the groups was detected by RT-PCR and Western blot. The nuclear factor- κ B （NF- κB） activity was detected by electrophoretic mobility shift assay （EMSA） and the inhibitor- κB α （Ⅰ- κB α） protein level was detected by Western blot.
Results： The decrement of Ⅰ- κB a protein and the increasing NF- KB activity were found in cardiomyocytes pretreated with EPO before H/R compared to other groups （t=3.321, 4.183, P〈0.01）. However, after H/R, NF- κB activity and expression of TNF- α gene were significantly reduced, Ⅰ- κB a protein expression was increased in cardiomyocytes of E group compared to other groups （t=-3.425, 3.687, 3.454, P〈0.01）. All theses changes caused by EPO pretreatment were eliminated by the intervention of PDTC （an antagonist to NF- κB） during pretreatment.
Conclusions： EPO pretreatment can inhibit the activation of NF- κB and upregulation of TNF- α gene in cardiomyocytes exposed to H/R through a negative feedback of NF- κB signaling pathway, and thus produces the anti-inflammatory effect. This might be one of the ways EPO produces the anti-inflammatory effect.     

放射性核素阴囊血池显像技术诊断精索静脉曲张的临床研究

目的:探讨放射性核素阴囊血池显像(RSI)技术诊断精索静脉曲张(VC)的价值。方法:本组126例有男性不育1年以上病史、精液分析异常的患者分别接受临床体格检查(PE);RSI技术检查,计算两侧阴囊血池指数值(SBPI),并观察是否有精索静脉血液返流;以及彩色双功能多普勒显像(CDFI)检查,对VC进行分型、定度。将PE,RSI结果分别与CDFI结果对比。结果:PE、RSI诊断VC的灵敏度分别为:71.7%、96.5%,特异度分别为:69.1%、97.1%。RSI诊断VC的灵敏度、特异度均高于PE。结论:RSI技术是诊断临床型、亚临床型VC的简单、安全、有效的无创诊断方法,也是一种非侵袭性,更加客观、准确地诊断VC的有效方法。