急性缺血性脑卒中的诊治

急性缺血性脑卒中的分型有助于确定治疗原则。静脉溶栓治疗及血管取栓治疗是最有效的恢复脑再灌注的特异治疗方法。抗栓治疗、改善循环、降纤、扩容、神经保护、传统医药及对并发症的管理对预后有重要影响。康复治疗是促进卒中患者功能恢复、减少并发症、提高生活质量的重要措施。卒中后应尽早开始二级预防。     

浅谈医学留学生胃肠外科教学的体会及思考

随着我国综合国力的不断提升,到我国学习临床医学的外国留学生日益增多,留学生教育已成为高等医学教育的重要组成部分。为适应医学留学生胃肠外科教学需要,结合留学生教学实践,本文提出制订合适的教学内容与方法,编写专用英文教材,加强教师英语口语表达能力并加强师生沟通。在传授知识的同时,还应注重临床实践能力的培养和医德医风的教育。实践表明,上述措施对提高教学质量有一定帮助。     

Care,agency and criminality: Making sense of authorised extended distribution in the accounts of key stakeholders

IntroductionOne of the current harm reduction debates in Australia concerns the legalisation of the extended distribution of sterile needles and syringes, a practice that is currently unlawful in most Australian settings.MethodsWe used data from a unique pilot program of authorised extended distribution to document the opinions held by 22 key stakeholders -service staff, drug users and police - about the risks and benefits of authorisation, and to analyse the ways in which drug users were understood within these.ResultsOpinions were strongly in favour of authorising extended distribution, based on the belief that this would reduce the transmission of hepatitis C. However, stakeholders also identified that distributors risked attention from police and some noted that the consequences of this would be borne by distributors themselves and not the services that support them. These opinions rested on specific assumptions about people who inject, some of which reflect negative constructions of drug users as a source of danger to the public or as helpless ‘addicts’ with little control over their risk reduction. But there were other representations that positioned drug users more positively as responsible agents with a strong duty of care to themselves and others whose choices are often limited by inadequate service structures. Staff participants drew on these understandings in careful and strategic ways, arguing for the rationality and expertise of drug users, while also problematizing the individualised approach that any form of authorised extended distribution might take.ConclusionWe argue that localised and incremental changes such as those that took place to support this pilot project, and the extensive support for extended distribution among stakeholders in this study including police, creates meaningful opportunities to think about extended distribution differently, which can in turn support conditions for future discussions about legislative change.     

一株海绵共附生真菌Fusarium equiseti SCSIO 41019的次级代谢产物及其抑菌活性研究

目的 研究海绵共附生真菌Fusarium equiseti SCSIO 41019的次级代谢产物及抑菌活性。方法 采用中压硅胶柱色谱、中压反相ODS柱色谱及高效液相色谱等方法对发酵产物进行分离和纯化，运用核磁数据及文献对比的方法鉴定化合物结构。采用滤纸片琼脂扩散法、改良肉汤稀释法评价化合物的抑菌活性。结果 从其大米发酵产物中分离并鉴定了8个化合物，分别为equisetin(1)、5'-epiequisetin(2)、lumichrome(3)、N-乙酰基色胺(4)、亚油酸(5)、methyl (4-hydroxyphenyl) acetate(6)、methyl (2-hydroxyphenyl) acetate(7)和graminin B(8)。化合物1、2和5对金黄色葡萄球菌(Staphylococcus aureus)和耐甲氧西林金黄色葡萄球菌(methicillin-resistant Staphylococcus aureus, MRSA)分别具有不同程度的抑制作用，最小抑菌浓度(minimal inhibitory concentration, MIC)为2.0~125μg/mL，其中化合物1的抑菌活性最强(MIC值分别为2.0和3.9μg/mL)。结论 从菌株Fusarium equiseti SCSIO 41019分离得到两个具良好抑菌活性的化合物(1~2)，为将其开发为耐甲氧西林金黄色葡萄球菌的先导化合物提供一定参考。     

Risk factors for complications and in-hospital mortality: An analysis of 19,834 open pelvic ring fractures

BackgroundOpen pelvic fractures are rare injuries, associated with high patient morbidity and mortality. Few studies have investigated the impact of patient demographics, comorbidities, and injury related factors on complication and mortality rates. The purpose of this study was to: (1) identify the overall incidence of complications and mortality after open pelvic fractures, (2) compare patient factors between those who did and did not develop complications, (3) identify perioperative independent risk factors for complications and mortality.MethodsA query was performed for patients with open pelvic fractures between 2007 and 2017 using the American College of Surgeons National Trauma Data Bank. Patient and injury specific variables were collected and complications were identified using International Classification of Disease Ninth and Tenth edition Codes. Patient demographic and perioperative data was compared using Fisher’s exact test and chi-square test for categorical variables, and Welch’s t-test for continuous variables. Using pooled data from multiple imputations, logistic regressions were used to calculate odds ratios and confidence intervals of independent risk factors for complications.ResultsA total of 19,834 open pelvic fracture cases were identified, with 9622 patients (48.5%) developing at least one complication. Patients who developed complications were older (35.0 vs 38.1 years), and had higher Injury Severity Scores (17.7 vs 26.5), lower Glasgow Coma Scores (14.2 vs 11.7), and a larger proportion presenting with hypotension (21% vs 6.9%). After pooled regression involving 19 factors, these were the strongest independent predictors of inpatient complication and mortality.ConclusionWe report a mortality rate of 14%, with an inclusive complication rate of 48.5%. Evaluating risk factors for morbidity and mortality for this devastating orthopaedic injury provides knowledge of an inherently sparse population.Level of EvidenceLevel II, Retrospective study.     

胎膜早破孕妇血清炎性标志物变化､生殖道感染情况及羊膜腔感染危险因素分析

目的研究胎膜早破(PROM)孕妇血清炎症标志物水平变化?生殖道感染情况及引起羊膜腔感染的可能相关因素,并分析引起PROM的危险因素。方法将2017年6月至2020年6月台州市中心医院收治的113例PROM患者纳入观察组,同期正常妊娠并分娩的120例孕产妇纳入对照组。比较两组血清炎性标志物[血管细胞黏附分子-1(VCAM-1)?C反应蛋白(CRP)]及下生殖道感染情况,并行单因素及多因素Logistic回归分析影响PROM的独立危险因素;分析PROM孕产妇的羊膜腔感染情况,分析血清炎性标志物?生殖道感染与羊膜腔感染的关系。结果观察组血清炎性标志物VCAM-1?CRP水平及下生殖道感染率均显著高于对照组(P<0.05);多因素Logistic回归分析显示,下生殖道感染?血清VCAM-1水平?血清CRP水平及双胎妊娠均是影响PROM的独立危险因素;统计发现,PROM合并羊膜腔感染者共31例,其血清VCAM-1水平?血清CRP水平及下生殖道感染率均显著高于非羊膜腔感染者(P<0.05)。结论下生殖道感染?血清炎性标志物水平升高及双胎妊娠是PROM发生的独立危险因素,且下生殖道感染及炎性标志物水平升高还可能是影响羊膜腔感染发生的因素之一。     

改良胰管空肠黏膜端侧吻合胰十二指肠切除术临床效果研究

目的探讨改良胰管空肠黏膜端侧吻合的胰十二指肠切除术临床效果。方法回顾性分析2016年1月至2019年3月62例行胰十二指肠切除术(PD)患者临床资料,其中30例行改良胰管空肠黏膜端侧吻合术(改良组),32例行传统胰管空肠黏膜端侧吻合术(传统组)。选用SPSS 20.00统计学软件进行数据分析,围术期相关指标和术后第1、3、5、7、9 d的腹腔引流液淀粉酶水平用(±s)表示,采用独立t检验;并发症发生率采用χ^2检验,P<0.05差异有统计学意义。结果改良组出血量明显小于传统组(P<0.05),其余相关围术期指标差异均无统计学意义(P>0.05);改良组术后发生1例胰瘘明显小于传统组9例(P<0.05),其中改良组B级胰瘘发生率明显小于传统组(P<0.05),生化瘘、C级胰瘘发生率、淋巴瘘、胃排空发生率比较差异均无统计学意义(P>0.05);两组患者腹腔引流液淀粉酶含量在术后第1、3、5、7、9 d的检测期间内,传统组腹腔引流液淀粉酶含量小于改良组(P<0.05)。结论改良胰管空肠黏膜端侧吻合术相比于传统胰管空肠黏膜端侧吻合术在PD中能有效降低胰瘘的发生率,具有一定的临床推广价值。