目的 探讨生物电抗无创心排监测（bioreactance noninvasive cardiac output monitoring,NICOM）心指数（cardiac index,CI）和总外周阻力指数（total peripheral resistance index TPRI）对呼吸困难病因诊断的临床价值。方法 采用前瞻性观察性研究的方法 ,纳入急性呼吸困难或慢性呼吸困难急性加重的患者共113例,临床医师根据2010年中华医学会心血管病学分会编委会组织编写的《急性心力衰竭诊断和治疗指南》为金标准分为心力衰竭组（n=55）和非心力衰竭组（n=58）,通过NICOM监测CI、TPRI,构建受试者工作特征曲线（receiver operating characteristic curve,ROC曲线）,分析CI和TPRI对心力衰竭的诊断价值。结果 心力衰竭组患者的CI低于非心力衰竭组（P<0.001）;心力衰竭组患者TPRI高于非心力衰竭组（P<0.001）;利用ROC曲线进行分析,CI曲线下面积（area under the curve,AUC）为0.792（95%CI：0.708~0.875,P=0.000）,当CI截断值取2.65L/（min·m²）时,诊断心力衰竭的敏感度为63.6%,特异度为87.9%;TPRI的AUC为0.733（95%CI：0.641~0.825,P=0.000）,当TPRI截断值取2 353dynes.sec/（cm⁵·m²）时,诊断心力衰竭的敏感度为72.7%,特异度为67.2%;CI联合TPRI诊断心力衰竭的敏感度为80%,特异度为65.5%。结论 NICOM监测CI对心力衰竭所致的呼吸困难特异度高,联合TPRI监测可提高敏感度。

Objective To investigate the clinical values of etiological diagnosis by testing cardiac index CI and total peripheral resistance index TPRI using bioreactance noninvasive cardiac output monitoring NICOM in patients with dyspnea. Methods Prospective,observational study was taken in 113 adult patients admitted with dyspnea or acute exacerbation of dyspnea in stable disease. The patients were divided into two groups namely heart failure group （n=55）and non-heart failure group（n=58） according to the guidelines on the diagnosis and treatment of acute heart failure（2010） as the standard criterion. All patients underwent CI and TPRI test by using NICOM. Receiver operating characteristic curve（ROC curve） was plotted to evaluate the diagnostic value of CI and TPRI. Results Compared with non-heart failure group,the CI was worse（P<0.001）,and the TPRI was elevated（P<0.001）. ROC curve showed that the area under the curve（AUC） of CI was 0.792（95%CI：0.708~0.875,P=0.000）. The cut-off of CI was 2.65L/min/m²,the sensitivity was 63.6%,and specificity was 87.9%. The AUC of TPRI was 0.733（95%CI：0.641~0.825,P=0.000）. The cut-off of CI was 2 353dynes.sec/cm⁵/m²,the sensitivity was 72.7%,and specificity was 67.2%. The sensitivity of CI combined TPRI was 80%,and specificity was 65.5%. Conclusion NICOM monitoring CI have high specificity,and combined TPRI monitored may improve sensitivity for dyspnea caused by heart failure.

代谢综合征(MS)是临床上多个症候群构成的代谢紊乱聚合体。近几十年来,MS的发病率和患病率一直呈上升趋势。笔者整理近5年关于老年代谢综合征研究的相关文献,分析老年人群代谢综合征患病情况、特点及影响因素等,并对老年代谢综合征的防治提出一些建议。

目的 探究血清外泌体对小鼠烫伤伤口愈合的促进作用及机制。方法 选取我院60只NIH小鼠作为研究对象,对其血清中的外泌体进行提取和分离,建立起皮肤烫伤模型。采用血清外泌体进行治疗,评估治疗的效果,观察皮肤组织的病理变化,检测小鼠成纤维细胞增殖和表皮HaCat细胞迁移使用血清外泌体受到的影响。结果 空白对照组和血清外泌体小鼠烫伤创口愈合时间比较,差异有统计学意义(P＜0.05);血清外泌体作用24 h后,不同剂量OD值差异有统计学意义(P＜0.05);10 μL Exo组和PBS组内部不同时间点OD值差异均有统计学意义(P＜0.05);外泌体组和PBS组24 h的HaCat细胞迁移率相比较,差异有统计学意义(P＜0.05)。结论 血清外泌体可以促进小鼠烫伤伤口的愈合,对成纤维细胞的增殖和表皮HaCat细胞的迁移作用也比较显著,可能成为临床治疗烫伤的新手段。

目的 了解医院感染及抗菌药物使用现状,进一步制定有效的预防控制措施。方法 采用横断面调查方法,应用SPSS 17.0行统计分析。结果 3次调查实查率100%。其中社区感染255例,现患率31.14%;高发科室为儿科;感染部位以下呼吸道为主(62.75%);感染病原以革兰氏阳性菌(G⁺)为主。医院内感染6例、现患率0.73%;高发科室为妇产科、外科;感染部位以浅表切口为主(50%);感染病原以革兰氏阴性菌(G^-)为主(66.6%)。三年内医院抗菌药物平均使用率32.23%。结论 调查结果反映了医院感染及抗菌药物使用现状。依此制定干预措施,防控多重耐药菌感染,减少医院感染发生。

Objective To investigate the trends of nosocomial infections and use of antimicrobial agents,in order to effectively prevent and control program of hospital infection. Methods Cross-sectional survey method was adopted,the SPSS17.0 were used to statistical analysis. Results The check real rate was 100％.Among them 255 cases were community infection, the infection rate was 31.14%; the high frequent incidence was in the pediatric department; lower respiratory tract infection was the primary infection sites(62.75%);gram-positive bacteria (G +) was the main pathogenic bacteria. 6 cases were nosocomial infection, the infection rate was 0.73%; the obstetrics and gynecology /surgery were the primary incidence; superficial incisional wound infection was the primary infection sites(50%);gram-negative bacteria (G-) was the main pathogenic bacteria(66.6%).The antimicrobial drug utilization rate averaged 32.23% in the three years. Conclusion The investigation reflects the nosocomial infection rates and the present situation of the use of antibacterial drugs. intervention measures were formulated based on the results of the survey. multiple drug-resistant bacteria infection should be prevented and controlled to reduce the incidence of hospital infection.

目的 分析本科医学生对临床技能学培训课程的满意度,探索可提高临床技能学课程的改进措施。方法 抽取2015级不同专业医学生参加临床技能学课程的学生,通过问卷调查学生对培训课程的满意度。结果 临床技能学体系改革后,学生对临床技能学课程设置和老师的满意度都很高,对课程设置非常满意有18.31%,满意有58.03%,基本满意有21.69%,不满意的只有1.41%;对老师非常满意有36.9%,满意有49.86%,基本满意有12.68%,不太满意只有0.56%。结论 临床技能学可提高学生的临床综合能力和思维能力,可以持续的开展。

Objective To Through the analysis of the satisfaction surveys of clinical skills course, we aimed to make improvements on the teaching of clinical skills course. Methods With the method of stratified sampling, we chose medical students of different majors in the grade 2015 who attended the clinical skills course, and carried out the surveys of their satisfaction on the course. Results Students were satisfied with the design and the teaching of clinical skills course after the reform of clinical skills teaching. With the design of clinical skills course, 18.31% students were very satisfied, 58.03% were satisfied, 21.69% were basically satisfied, and just 1.41% were unsatisfied; With the teachers of clinical skills, 36.9% students were very satisfied, 49.83% were satisfied, 12.68% were basically satisfied, and just 0.56% were unsatisfied. Conclusion Clinical skills course may improve students' clinical comprehensive abilities and clinical thinking. It should be carried out continuously.

瘦素(leptin)是由控制各种生理过程的脂肪组织合成和分泌的一类激素,通过作用于靶细胞膜上的瘦素受体并经信号传导在各器官和系统中发挥一系列生物学效应。肾脏是高血压常见的靶器官之一。相关研究表明,瘦素在高血压肾损害中发挥作用,其机制可能与氧化应激及其炎症反应有关。本文以瘦素对高血压肾损害及其相关机制作一综述,并探讨瘦素对高血压肾损害发病机制研究进展。

Leptin which is a kind of synthesis and secretion of hormone that participates in various physiological processes is the role of the leptin receptor on the target cell membrane and the signal transduction through a series of biological effects in different organs and systems. Kidney is one of the common target organs of hypertension, and related research shows that leptin plays a role in hypertensive kidney damage, whose mechanism may be related to oxidative stress and its inflammatory reaction. The paper reviewed leptin on renal damage in hypertension and its related mechanisms, to explore the leptin on renal pathogenesis of hypertension research progress.

目的 探讨降低院前病情识别风险的护理研究。方法 对106例患者进行院前急救护理,53例患者使用简单临床评分(SCS)作为对照组,53例患者采用改良早期预警评分(MEWS)模式作为观察组,并按照院前危重患者救治护理模式实施院前急救护理。比较救治结果。结果 观察组患者院前急救总耗时间缩短,转运成活率和满意度提高,转运并发症发生率低于对照组,差异有统计学意义(P<0.05)。MEWS评分评估28 d生存率的AUC为0.861(P＜0. 001),临界值为6.98分,敏感度87.2%,特异度91.6%,优于SCS。结论 早期预警评分模式可以降低院前病情识别风险,提高救治成功率和护理质量,对患者预后有较好的敏感性和准确性。

Objective To explore the nursing in reducing risk of patients' pre-hospital condition recognition. Methods 106 patients were treated by emergency care in pre-hospital period. Among all patients a simple clinical scoring condition assessment(SCS) were given to 53 patients, who were in control group, and other 53 cases were treated by modified early warning score model (MEWS), who were in observation group. Emergency care was given to all critical patients in pre-hospital period. Then we compared the effects. Results The pre-hospital consumed time was significantly less, transportation survival rate and satisfaction rate of patients were both higher, complication rate was lower in observation group than control group(P＜0.05). The AUC was 0.861(P＜0. 001) of MEWS for evaluating survival rate after 28 days by the ROC curve analysis. The score of cutoff value was 6.98, sensitivity was 87.2%, specificity was 91.6%, which were all better than SCS. Conclusion Early warning score model may decrease the risk of condition recognition in pre-hospital period, improve rescue success rate and nursing quality, providing a better sensitivity and accuracy for prognosis evaluation.

肝细胞肝癌(HCC)是世界上最常见的肿瘤之一,其病因及确切的分子机制尚不完全清楚,目前认为其发病是多因素、多步骤的复杂过程,且预后较差。miRNAs在调控细胞的周期变化中起到重要的作用,它具有较高的组织特异性,在肿瘤发生中起到关键作用,从而有潜力作为肝癌的诊断和分类的新生物标志物,以及预测患者预后的工具。本文就近年来miRNAs在肝细胞肝癌方面的研究进展做一综述。

目的 观察百草枯中毒后大鼠血液中炎症因子的变化,以及大承气汤结合氢化可的松在百草枯中毒治疗中的作用。方法 选用广东省实验动物所的160只SD大鼠,雌雄各半。其中随机抽取 120 只大鼠给予百草枯溶液按18 mg/kg的剂量一次性腹腔注射给药,制造百草枯中毒大鼠模型其余 40只大鼠不作处理,作为正常组。再将模型组分为大承气汤联合氢化可的松组、氢化可的松组及盐水对照组,观察大鼠中毒情况,观察并分析给药后1 d、3 d以及5 d大鼠的肺组织以及血清炎症因子TNF-α、IL-2、IL-6等的变化情况。结果 正常对照组在中毒后1 d、3 d未见大鼠死亡,在5 d有1只动物死亡;模型组大鼠TNF-α、IL-2、IL-6水平高于对照组,差异有统计学意义(P<0.05);正常对照组大鼠各因子水平,随着中毒时间的延长逐渐增加,均有差异(P<0.05);大承气汤联合氢化可的松组给药后各时间点TNF-α、IL-2、IL-6降低,与氢化可的松组、盐水对照组均有差异(P<0.05)。结论 大鼠百草枯中毒后,肺组织发生纤维化改变,且TNF-α、IL-2、IL-6因子的水平升高,随着时间的推移,呈现上升趋势;大承气汤对百草枯中毒大鼠肺组织具有保护作用,可能调控各炎症因子作用,减缓病情进展来实现。

目的 评估方体定向置管治疗创伤性非功能区硬膜外小血肿的疗效。方法 回顾分析65例创伤性非功能区硬膜外血肿患者,血肿量在15～30 mL。依据治疗方法分为2组,35例对照组患者采用传统药物治疗而30例观察组患者同时采用药物及方体定向置管治疗。对比分析2组患者住院期间血肿清除率及并发症发生率,术后3个月及6个月时再发头痛、焦虑及血肿清除的情况。结果 两组相比,观察组患者血肿清除率(66.7%),高于对照组(25.7%),两组差异有统计学意义,而并发症发生率,两组无统计学差异;3个月后再发头痛、焦虑及硬膜外血肿清除的情况存在显著差异;而6个月后上述情况无显著差异。结论 方体定向置管治疗在不增加患者并发症发生的同时,能在短时间内快速清除硬膜外血肿,降低患者伤后近期头痛、焦虑症状的发生,改善患者近期生活质量,具有一定临床应用的价值。

Objective To evaluate the clinic value the technique of Cuboid stereotactic catheter (TCSC) in the treatment of small-volume traumatic extradural hematoma in non-functional areas.Methods We performed a retrospectively analysis of 65 patients with small-volume(15-30 mL) traumatic extradural hematoma in non-functional areas. All of which were divided into two groups according to the different treatments. 35 cases treated with drugs were control group, while the rest of 30 cases with both drugs and TSCS were treatment group. The complication incidence and hematoma clearance rate in hospitalization time, recurrence rate of headache, anxiety,hematoma clearance rate at 3 and 6 months follow-up were compared between the two groups.Results The hematoma clearance rate in control group and treatment group were 25.7% and 66.7%,respectively. (P=0.001), while the complication rate was no obvious differences. The recurrence rate of headache, anxiety and hematoma clearance rate at 3 months follow-up were different between the two groups. These conditions were not happened at 6 months follow-up.Conclusion TCSC may eliminate the hematoma within a short hospitalization time by avoiding extra complication coincidence, improve the short-term life quality of patients such as relief the symptoms like headache and anxiety in the patients with small-volume(15~30 mL) traumatic extradural hematoma in non-functional areas. Above of results indicates the impact of this technique on neurosurgical practice.