A rapid advice guideline for the diagnosis and treatment of 2019 novel coronavirus(2019-nCoV) infected pneumonia(standard version)

In December 2019, a new type viral pneumonia cases occurred in Wuhan, Hubei Province;and then named "2019 novel coronavirus(2019-nCoV)" by the World Health Organization(WHO) on 12 January 2020. For it is a never been experienced respiratory disease before and with infection ability widely and quickly, it attracted the world’s attention but without treatment and control manual. For the request from frontline clinicians and public health professionals of 2019-nCoV infected pneumonia management, an evidence-based guideline urgently needs to be developed. Therefore, we drafted this guideline according to the rapid advice guidelines methodology and general rules of WHO guideline development;we also added the first-hand management data of Zhongnan Hospital of Wuhan University. This guideline includes the guideline methodology, epidemiological characteristics, disease screening and population prevention, diagnosis, treatment and control(including traditional Chinese Medicine), nosocomial infection prevention and control, and disease nursing of the 2019-nCoV. Moreover, we also provide a whole process of a successful treatment case of the severe 2019-nCoV infected pneumonia and experience and lessons of hospital rescue for 2019-nCoV infections. This rapid advice guideline is suitable for the first frontline doctors and nurses, managers of hospitals and healthcare sections, community residents, public health persons, relevant researchers, and all person who are interested in the 2019-nCoV.

Chemoprophylaxis, diagnosis, treatments, and discharge management of COVID-19: An evidence-based clinical practice guideline(updated version)

The novel severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)is the cause of a rapidly spreading illness,coronavirus disease 2019(COVID-19),affecting more than seventeen million people around the world.Diagnosis and treatment guidelines for clinicians caring for patients are needed.In the early stage,we have issued"A rapid advice guideline for the diagnosis and treatment of 2019 novel coronavirus(2019-nCoV)infected pneumonia(standard version)";now there are many direct evidences emerged and may change some of previous recommendations and it is ripe for develop an evidence-based guideline.We formed a working group of clinical experts and methodologists.The steering group members proposed 29 questions that are relevant to the management of COVID-19 covering the following areas:chemoprophylaxis,diagnosis,treatments,and discharge management.We searched the literature for direct evidence on the management of COVID-19,and assessed its certainty generated recommendations using the Grading of Recommendations,Assessment,Development and Evaluation(GRADE)approach.Recommendations were either strong or weak,or in the form of ungraded consensus-based statement.Finally,we issued 34 statements.Among them,6 were strong recommendations for,14 were weak recommendations for,3 were weak recommendations against and 11 were ungraded consensus-based statement.They covered topics of chemoprophylaxis(including agents and Traditional Chinese Medicine(TCM)agents),diagnosis(including clinical manifestations,reverse transcription-polymerase chain reaction(RT-PCR),respiratory tract specimens,IgM and IgG antibody tests,chest computed tomography,chest X-ray,and CT features of asymptomatic infections),treatments(including lopinavirritonavir,umifenovir,favipiravir,interferon,remdesivir,combination of antiviral drugs,hydroxychloroquine/chloroquine,interleukin-6 inhibitors,interleukin-1 inhibitors,glucocorticoid,qingfei paidu decoction,lianhua qingwen granules/capsules,convalescent plasma,lung transplantation,invasive or noninvasive ventilation,and extracorporeal membrane oxygenation(ECMO)),and discharge management(including discharge criteria and management plan in patients whose RT-PCR retesting shows SARS-CoV-2 positive after discharge).We also created two figures of these recommendations for the implementation purpose.We hope these recommendations can help support healthcare workers caring for COVID-19 patients.

Bibliometric analysis of randomized controlled trials of colorectal cancer over the last decade

BACKGROUND Colorectal cancer is one of the most common cancers globally.In China,its prevalence ranks fourth and fifth among females and males,respectively.Presently,treatment of rectal cancer follows a multidisciplinary comprehensive treatment approach involving surgery,radiotherapy,chemotherapy,and targeted therapy.With deepening theoretical and molecular research on colorectal cancer,randomized controlled trials(RCTs)on colorectal cancer have made significant progress.However,many RCTs have shortfalls.AIM To investigate the RCTs of global colorectal cancer spanning from 2008 to 2018.To provide suggestions for conducting Chinese RCTs of colorectal cancer.METHODS PubMed and Web of Science databases were searched to obtain RCTs of colorectal cancer carried out between January 1,2008,and January 1,2018.The bibliometric method was used for statistical analysis of the publication years,countries/regions,authors,institutions,source journals,quoted times,key words,and authors.RESULTS Colorectal cancer RCTs showed an upward trend between 2008 to 2018;the top 10 research institutions in the included literature were from the United States,the United Kingdom,and other countries with a high incidence of colorectal cancer.Most of the related research journals are sponsored by European and American countries.The 15 most cited studies involved international multicenter clinical research,having few participants from Chinese research institutions.Network visualization using key words showed that RCTs on colorectal cancer focus on screening,disease-free survival,drug treatment,surgical methods,clinical trials,quality of life,and prognosis.The result of the coauthorship network analysis showed that Chinese researchers are less involved in international exchanges compared to those from leading publication countries.CONCLUSION High-quality RCTs are increasingly favored by leading international journals.However,there is still a large gap in clinical research between China and leading countries.Researchers should implement standardized and accurate clinical trials,strengthen international multicenter cooperation,and emphasize quality control.

医学领域一次研究和二次研究的方法学质量(偏倚风险)评价工具

方法学质量(偏倚风险)评估是医学研究开始前的重要步骤。因此,准确判断研究类型是前提,选择合适的评价工具也很重要。本综述介绍了用于随机对照试验(包括个体和整群)、动物实验、非随机干预性研究(包括随访研究、有对照组的前后对照研究、前后对照研究、非对照纵向研究、间断时间序列研究)、队列研究、病例-对照研究、横断面研究(包括分析和描述性研究)、观察性病例系列和病例报告、比较效果研究、诊断性研究、卫生经济学评价、预测研究(包括预测变量研究、预测模型影响研究、预后预测模型研究)、质性研究、结果测量工具(包括患者-报告的结果测量发展、内容真实性、结构真实性、内部一致性、跨文化真实性/测量不变性、信度、测量误差、校标真实性、结构真实性假设检验、反应度)、系统评价与Meta分析,以及临床实践指南的方法学质量评价工具。通过本综述,读者可以区分医学研究的类型并选择适当的工具。全面掌握相关知识并多加练习是正确评估方法学质量的基本要求。

经尿道前列腺等离子双极电切术并发症类型及其发生率的系统评价和Meta分析

目的评估经尿道前列腺等离子双极电切术(TUPKP)治疗良性前列腺增生(BPH)的相关并发症类型及其发生率。方法计算机检索PubMed、Embase、Web of Science、The Cochrane Library、中国知网、维普、中国生物医学文献数据库及万方数据库,搜集有关TUPKP治疗BPH并发症发生率的横断面研究,检索时限均至2020年9月15日。由2名研究者独立筛选文献、提取资料并评价纳入研究的偏倚风险后,采用R软件meta程序包进行Meta分析。结果共纳入27项研究,包括5247例患者。文献中报告的并发症有尿道狭窄、暂时性尿失禁、排尿困难、需要输血等31种。Meta分析结果显示:发生率最高的并发症为术后6个月射精异常,其次是术后逆行性射精、术后尿路刺激症状,发生率分别为75.15%[95%CI(68.25%,81.47%)]、24.77%[95%CI(0.00%,73.81%)]和17.15%[95%CI(9.61%,26.22%)]。其他并发症发生率均低于10%,有21种并发症的发生率低于3%。15项研究报告了经尿道电切综合征,且发生率均为0。结论当前证据显示,TUPKP治疗BPH术后并发症种类较多,发生率差异较大。

Short-term efficacy of natural orifice specimen extraction surgery for low rectal cancer

BACKGROUND This case-control study compared the short-term clinical efficacy of natural orifice specimen extraction surgery(NOSES) using a prolapsing technique and the conventional laparoscopic-assisted approach for low rectal cancer.AIM To further explore the application value of the transanal placement of the anvil and to evaluate the short-term efficacy of NOSES for resecting specimens of low rectal cancer, as well as to provide a theoretical basis for its extensive clinical application.METHODS From June 2015 to June 2018, 108 consecutive laparoscopic-assisted low rectal cancer resections were performed at our center. Among them, 26 specimens were resected transanally using a prolapsing technique(NOSES), and 82 specimens were resected through a conventional abdominal wall small incision(LAP). A propensity score matching method was used to select 26 pairs of matched patients, and their perioperative data were analyzed.RESULTS The baseline data were comparable between the two matched groups. All 52 patients underwent the surgery successfully. The operative time, blood loss,number of harvested lymph nodes, postoperative complication rate,circumferential margin involvement, postoperative follow-up data, and postoperative anal function were not statistically significant. The NOSES group had shorter time to gastrointestinal function recovery(2.6 ± 1.0 d vs 3.4 ± 0.9 d, P= 0.006), shorter postoperative hospital stay(7.1 ± 1.7 d vs 8.3 ± 1.1 d, P = 0.003),lower pain score(day 1: 2.7 ± 1.8 vs 4.6 ± 1.9, day 3: 2.0 ± 1.1 vs 4.1 ± 1.2, day 5: 1.7± 0.9 vs 3.3 ± 1.0, P < 0.001), a lower rate of additional analgesic use(11.5% vs61.5%, P = 0.001), and a higher satisfaction rate in terms of the aesthetic appearance of the abdominal wall after surgery(100% vs 23.1%, P < 0.001).CONCLUSION NOSES for low rectal cancer can achieve satisfactory short-term efficacy and has advantages in reducing postoperative pain, shortening the length of postoperative hospital stay, and improving patients' satisfaction in terms of a more aesthetic appearance of the abdominal wall.

Perceived infection transmission routes, infection control practices, psychosocial changes, and management of COVID-19 infected healthcare workers in a tertiary acute care hospital in Wuhan: a cross-sectional survey

Background:Many healthcare workers were infected by coronavirus disease 2019(COVID-19)early in the epidemic posing a big challenge for epidemic control.Hence,this study aims to explore perceived infection routes,influencing factors,psychosocial changes,and management procedures for COVID-19 infected healthcare workers.Methods:This is a cross-sectional,single hospital-based study.We recruited all 105 confirmed COVID-19 healthcare workers in the Zhongnan Hospital of Wuhan University from February 15 to 29,2020.All participants completed a validated questionnaire.Electronic consent was obtained from all participants.Perceived causes of infection,infection prevention,control knowledge and behaviour,psychological changes,symptoms and treatment were measured.Results:Finally,103 professional staff with COVID-19 finished the questionnaire and was included(response rate:98.1%).Of them,87 cases(84.5%)thought they were infected in working environment in hospital,one(1.0%)thought their infection was due to the laboratory environment,and 5(4.9%)thought they were infected in daily life or community environment.Swab of throat collection and physical examination were the procedures perceived as most likely causing their infection by nurses and doctors respectively.Forty-three(41.8%)thought their infection was related to protective equipment,utilization of common equipment(masks and gloves).The top three first symptoms displayed before diagnosis were fever(41.8%),lethargy(33.0%)and muscle aches(30.1%).After diagnosis,88.3%staff experienced psychological stress or emotional changes during their isolation period,only 11.7%had almost no emotional changes.Arbidol(Umifenovir;an anti-influza drug;69.2%)was the drug most commonly used to target infection in mild and moderate symptoms.Conclusion:The main perceived mode of transmission was not maintaining protection when working at a close distance and having intimate contact with infected cases.Positive psychological intervention is necessary.

Oral microbiota in the oral-genitourinary axis:identifying periodontitis as a potential risk of genitourinary cancers

Periodontitis has been proposed as a novel risk factor of genitourinary cancers:although periodontitis and genitourinary cancers are two totally distinct types of disorders,epidemiological and clinical studies,have established associations between them.Dysbiosis of oral microbiota has already been established as a major factor contributing to periodontitis.Recent emerging epidemiological evidence and the detection of oral microbiota in genitourinary organs indicate the presence of an oral-genitourinary axis and oral microbiota may be involved in the pathogenesis of genitourinary cancers.Therefore,oral microbiota provides the bridge between periodontitis and genitourinary cancers.We have carried out this narrative review which summarizes epidemiological studies exploring the association between periodontitis and genitourinary cancers.We have also highlighted the current evidence demonstrating the capacity of oral microbiota to regulate almost all hallmarks of cancer,and proposed the potential mechanisms of oral microbiota in the development of genitourinary cancers.

Periodontal disease and risk of benign prostate hyperplasia: a cross-sectional study

Background:Both periodontal disease and benign prostatic hyperplasia are age-related diseases that affect millions of people worldwide.Hence,this study aimed to investigate the association between periodontal disease and the risk of benign prostatic hyperplasia.Methods:A total of 4930 participants were selected from an available health examination that was carried out in 2017,only males were considered for further analysis.All eligible males were divided into benign prostatic hyperplasia and normal groups,the benign prostatic hyperplasia group was then divided into prostate volume≤60 g and>60 g subgroups;all their periodontal status was extracted and then into normal(CPI score of 0),periodontal disease(CPI score between 1 and 4),and periodontitis(CPI score between 3 and 4)groups.The correlation between periodontal disease and benign prostatic hyperplasia was investigated using logistic regression analyses and greedy matching case-control analysis.Subgroup analysis based on prostate volume was also performed.All analyses were conducted with SAS 9.4 software.Results:A total of 2171 males were selected for this analysis.The presence of periodontal disease significantly increased the risk of benign prostatic hyperplasia by 1.68 times(OR=1.68,95%CI:1.26–2.24),and individuals with periodontitis showed a higher risk(OR=4.18,95%CI:2.75–6.35).In addition,among matched cases and controls,this association remained robust(periodontal disease:OR=1.85,95%CI:1.30–2.64;periodontitis:OR=4.83,95%CI:2.57–9.07).Subgroup analysis revealed that periodontal disease significantly increased benign prostate hyperplasia risk as well(for prostate volume≤60 g:OR=1.64,95%CI:1.22–2.20;for volume>60 g:OR=2.17,95%CI:1.04–4.53),and there was a higher risk in the group with a prostate volume greater than 60 g.Conclusions:Periodontal disease is significantly and positively associated with an increased risk of benign prostatic hyperplasia.Further validation studies should be performed to explore the relationship between periodontal treatment and benign prostate hyperplasia.

新型冠状病毒(2019-nCoV)感染的肺炎诊疗快速建议指南(完整版)

2019新型冠状病毒(2019 novel coronavirus,2019-nCoV)感染的肺炎,因2019年12月发生在武汉的不明原因病毒性肺炎病例而被发现,并于2020年1月12日被世界卫生组织(World Health Organization,WHO)命名。在之后的一个月时间内,2019-nCoV在湖北省内外甚至其他国家传播造成了数以千计的病例出现,同时也引起了民众一定程度的恐慌。本指南的制订希望能够从疾病流行病学、病因学、诊断、治疗、护理、医院感染控制等方面给临床医生、社区居民等提供医疗护理及居家照护相关指导。

新型冠状病毒肺炎药物预防、诊断、治疗与出院管理临床指南计划书

本计划书为《新型冠状病毒(2019-nCoV)感染的肺炎诊疗快速建议指南(标准版)》更新版的研究方案。计划书涵盖指南制定方法学、指南的目标用户、指南的目标人群、利益冲突调查与声明、临床问题和结局指标的遴选与确定、证据的检索、合成与评价、证据与推荐意见分级标准、推荐意见的形成、指南的更新,并附录指南临床问题清单、文献检索策略及利益冲突调查表。

新型冠状病毒院内感染调研与分析工具的开发与验证

目的制定2019-nCoV院内感染调研与分析工具,并行初步验证。方法研究小组基于前期循证制定的"新型冠状病毒医护感染过程及防控调研问卷",主要通过细化问卷调研目的、建立问卷条目池、评估问卷的效度三个步骤进行改编。结果形成了新型冠状病毒院内感染调研与分析工具,包括行政后勤感染组、医护对照组、行政后勤对照组3个问卷。问卷内容与研究目标具有较高的一致性。行政后勤感染组问卷包括"确诊前"、"确诊后"2个领域的调查,其中,"确诊前"涉及感染原因分析、确诊前防控方案、确诊前防控知识、确诊前心理上对疫情的应对状态4个部分,共计16个条目;"确诊后"包括确诊后症状、确诊后治疗、感染后对周围环境和人造成的影响、确诊后心理、感染后防护认识5个方面,共计21个条目。医护对照组问卷涉及与是否感染有关的工作或生活行为、防控相关行为、防控相关知识、心理上对疫情的应对状态4个方面,共计29个条目。行政后勤对照组问卷涉及的领域与医护对照组问卷相同,共计20个条目。结论本研究完成了2019-nCoV院内感染调研与分析工具的制定,共涉及2019-nCoV感染医院非医护工作人员感染过程及防控调研——行政、后勤人员专用,2019-nCoV感染医护感染对照组调研问卷——医护对照组,2019-nCoV感染医护感染对照组调研问卷——行政后勤对照组3个问卷,问卷的信度和效度均可靠、可行性良好。

河南省新型冠状病毒肺炎疫情特点分析

目的分析河南省新型冠状病毒肺炎(NCP)的流行病学特点,为河南省NCP的防控决策提供证据支持。方法收集河南省及省内各地市卫生健康委员会官方疫情信息、省内官方媒体及新媒体报道,整理、汇总省内各地区新型冠状病毒肺炎病例信息,采用描述性统计方法,分析我省新型冠状病毒肺炎疫情发生发展的流行病学特点和病例特点。结果截止至2020年2月7日,河南省累计确诊病例981例,累计密切接触者20928例,累计医学观察者10187例。患者年龄主要集中于19~60岁,约占81.75%;男性患者比例略高于女性(54.09%vs.44.58%);发热为新型冠状病毒肺炎的主要症状,近一半的患者在3天之内得到确诊;56.31%的患者有武汉旅居史,24.23%和8.63%的患者有接触确诊病例史和接触疑似病例史,仅14.93%的患者在发病前接受隔离观察;39.38%的患者在确诊前进行过0~1次的就诊,57.74%的患者居住地位于城区。结论河南省新型冠状病毒肺炎病例大多数为输入性病例,春运期间人员流动是影响疫情发展的主要因素。实施严格的隔离政策可有效控制疫情发展。

Lycopene exerts anti-inflammatory effect to inhibit prostate cancer progression

Lycopene is a natural compound that alleviates oxidative stress and inflammation,exerting therapeutic effects in a number of cancers.The aim of this study is to investigate the efficacy of lycopene in inhibiting prostate cancer.Cell viability assays indicated the dose-and time-dependent toxicity of lycopene in prostate cancer cells.Annexin V/propidium iodide double-staining assays revealed the strong apoptotic effects of lycopene.The levels of inflammatory factors,including interleukin-1 (ILl),IL6,ILS,and tumor necrosis factor-α(TNF-α),in lycopene-treated cells were also reduced by lycopene treatment.With the increasing dose of lycopene,the survival of mice bearing prostate cancer xenografts was significantly improved (P <0.01),and the tumor burden was significantly reduced (P <0.01).Our results indicate that lycopene is a promising chemotherapy drug,which inhibits prostate cancer progression by suppressing the inflammatory response.