Mass Screening

大规模筛查
  • 文章类型: Journal Article
    准确筛查有症状患者的COVID-19感染状况是一项关键的公共卫生任务。尽管目前存在针对COVID-19的分子和抗原测试,但在资源有限的环境中,筛查测试通常不可用。此外,在大流行的早期阶段,没有任何能力进行检测。我们利用自动机器学习(ML)方法在由常用临床和实验室数据组成的临床数据集上训练和评估数千个模型。以及患者的细胞因子谱(n=150)。然后在样本外二次数据集(n=120)上进一步测试这些模型的泛化性。我们能够使用三种方法开发一种ML模型,用于快速可靠地筛查COVID-19阳性或阴性的患者:常用的临床和实验室数据,细胞因子谱,以及共同数据和细胞因子谱的组合。在针对这三种方法自动测试的成千上万个模型中,所有三种方法均显示>92%的灵敏度和>88的特异性,而我们表现最高的模型获得了95.6%的灵敏度和98.1%的特异性.这些模型代表了在资源有限的环境中对有症状的患者进行COVID-19状态分类的潜在有效可部署解决方案,并为快速开发新型新兴传染病的筛查工具提供了概念证明。
    Accurate screening of COVID-19 infection status for symptomatic patients is a critical public health task. Although molecular and antigen tests now exist for COVID-19, in resource-limited settings, screening tests are often not available. Furthermore, during the early stages of the pandemic tests were not available in any capacity. We utilized an automated machine learning (ML) approach to train and evaluate thousands of models on a clinical dataset consisting of commonly available clinical and laboratory data, along with cytokine profiles for patients (n = 150). These models were then further tested for generalizability on an out-of-sample secondary dataset (n = 120). We were able to develop a ML model for rapid and reliable screening of patients as COVID-19 positive or negative using three approaches: commonly available clinical and laboratory data, a cytokine profile, and a combination of the common data and cytokine profile. Of the tens of thousands of models automatically tested for the three approaches, all three approaches demonstrated > 92% sensitivity and > 88 specificity while our highest performing model achieved 95.6% sensitivity and 98.1% specificity. These models represent a potential effective deployable solution for COVID-19 status classification for symptomatic patients in resource-limited settings and provide proof-of-concept for rapid development of screening tools for novel emerging infectious diseases.
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  • 文章类型: Journal Article
    背景:在幽门螺杆菌患病率较低的人群中,食管胃十二指肠镜检查(EGD)筛查的有效性尚不清楚。本研究旨在开发一种最佳有效的EGD筛查策略,用于检测幽门螺杆菌初治胃肿瘤(HpNGNs)。
    方法:对2016-2022年12家机构的EGD数据进行回顾性分析。年龄相关的HpNGN患病率,肿瘤生长速率,缺失率,并从数据库中计算检测阈值大小。随后,使用临床数据,开发了一种同时模拟人口变化和HpNGN检测的新型数学模型。还比较了使用不同起始年龄(40/45/50岁)和间隔(2/5/10岁)的筛选策略。测量虚拟队列中发生的所有肿瘤的检出率和需要测试的数量(NNT)作为结果。
    结果:519,368EGD和97HpNGNs(34例纯印戒细胞癌,26胃底腺型腺癌,30小窝胃腺瘤-覆盆子型,和7例未分化型癌症病例)进行了分析。使用具有70年时间范围的虚拟队列来模拟发生,增长,并检测到346,5836人。在检出率>50%的策略中,从45岁开始间隔5年的筛查策略的NNT最低.采取这种策略,大多数HpNGN检测到的尺寸<20毫米,深部粘膜下浸润率小于30%。
    结论:一个数学模拟模型显示,从45岁开始每5年进行一次筛查可以有效地帮助早期识别HpNGN。
    BACKGROUND: The effectiveness of esophagogastroduodenoscopy (EGD) screening in cohorts with low Helicobacter pylori prevalence is unknown. This study aimed to develop an optimally efficient EGD screening strategy for detecting H. pylori-naïve gastric neoplasms (HpNGNs).
    METHODS: EGD data of 12 institutions from 2016 to 2022 were retrospectively analyzed. Age-related HpNGN prevalence, tumor growth rate, missing rate, and detection threshold size were calculated from the databases. Subsequently, using clinical data, a novel mathematical model that simultaneously simulated demographic changes and HpNGN detection was developed. Screening strategies using different starting ages (40/45/50 years) and intervals (2/5/10 years) were also compared. The detection rates of all tumors occurring within the virtual cohort and number-needed-to-test (NNT) were measured as outcomes.
    RESULTS: Data of 519,368 EGDs and 97 HpNGNs (34 pure signet ring cell carcinomas, 26 gastric adenocarcinomas of the fundic gland type, 30 foveolar gastric adenoma-Raspberry type, and seven undifferentiated-type cancer cases) were analyzed. A virtual cohort with a 70-year time horizon was used to simulate the occurrence, growth, and detection of 346,5836 people. Among the strategies with detection rate > 50%, the screening strategy with a 5-year interval starting at 45 years of age had the lowest NNT. Adopting this strategy, most HpNGNs were detected at < 20 mm in size, and the deep submucosal invasion rate was less than 30%.
    CONCLUSIONS: A mathematical simulation model revealed that screening every 5 years starting at 45 years of age could efficiently assist in identifying HpNGNs at an early stage.
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  • 文章类型: Journal Article
    结核病负担较高的国家必须扭转COVID-19大流行的破坏性影响,以加快终结结核病的进程。越南的双X(2X)策略使用胸部X线摄影(CXR)和GeneXpert(Xpert)快速诊断测试来提高结核病的早期检测。家庭接触者和弱势群体(例如,60岁及以上的人,吸烟者,糖尿病患者,那些有酒精使用障碍的人,以及以前接受过结核病治疗的人)在社区活动中使用CXRs进行筛查,其次是Xpert对于那些有正面屏幕的人。在非结核病区的公共设施中,糖尿病患者,呼吸门诊病人,肺病住院患者,和其他弱势群体进行了2倍评估。在越南的COVID-19限制期间,2倍战略通过向乡镇卫生站下放权力,改善了获得结核病服务的机会,卫生系统的最低水平,并使用快速响应的移动应用程序实现自我筛选。对于所有2X模型,计算出使用CXR筛查(NNS)以诊断1名结核病患者所需的数量,并显示出自我筛查者中最高的产量(使用CXR的11NNS),社区(60NNS)和设施(19NNS)中弱势群体的高产量,以及社区运动中家庭接触者的中等高收益(154NNS)。CXR的计算机辅助诊断已纳入社区和设施实施,并改善了医生的CXR解释和Xpert转诊决策。结核病感染和结核病评估的整合提高了家庭接触者结核病预防治疗的资格。实施过程中的重大挑战。2X策略增加了Xpert的合理使用,采用全卫生系统的方法,在社区和设施中覆盖有和没有结核病症状的脆弱人群,以早期发现结核病。在COVID-19限制期间,该策略有效地适应了不同级别的卫生系统,并有助于越南大流行后结核病的恢复。
    Countries that are high burden for TB must reverse the COVID-19 pandemic\'s devastating effects to accelerate progress toward ending TB. Vietnam\'s Double X (2X) strategy uses chest radiography (CXR) and GeneXpert (Xpert) rapid diagnostic testing to improve early detection of TB disease. Household contacts and vulnerable populations (e.g., individuals aged 60 years and older, smokers, diabetics, those with alcohol use disorders, and those previously treated for TB) with and without TB symptoms were screened in community campaigns using CXRs, followed by Xpert for those with a positive screen. In public non-TB district facilities, diabetics, respiratory outpatients, inpatients with lung disease, and other vulnerable populations underwent 2X evaluation. During COVID-19 restrictions in Vietnam, the 2X strategy improved access to TB services by decentralization to commune health stations, the lowest level of the health system, and enabling self-screening using a quick response mobile application. The number needed to screen (NNS) with CXRs to diagnose 1 person with TB disease was calculated for all 2X models and showed the highest yield among self-screeners (11 NNS with CXR), high yield for vulnerable populations in communities (60 NNS) and facilities (19 NNS), and moderately high yield for household contacts in community campaigns (154 NNS). Computer-aided diagnosis for CXRs was incorporated into community and facility implementation and improved physicians\' CXR interpretations and Xpert referral decisions. Integration of TB infection and TB disease evaluation increased eligibility for TB preventive treatment among household contacts, a major challenge during implementation. The 2X strategy increased the rational use of Xpert, employing a health system-wide approach that reached vulnerable populations with and without TB symptoms in communities and facilities for early detection of TB disease. This strategy was effectively adapted to different levels of the health system during COVID-19 restrictions and contributed to post-pandemic TB recovery in Vietnam.
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  • 文章类型: Journal Article
    暂无摘要。
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  • 文章类型: Journal Article
    背景:老年人通常易患抑郁症,可能与自然衰老或其他疾病重叠的症状,因此错过了常规筛查问卷。尽管在老年人中使用的证据仍然有限,但被动感测数据已被推广为抑郁症状检测的工具。因此,本研究旨在回顾通过智能手机和智能手表使用被动感知数据在老年人抑郁症状筛查中的最新知识。
    方法:在PubMed,IEEEXplore数字图书馆,和PsycINFO。研究使用被动感测数据进行筛选的文献,监视器,和/或通过智能手机和/或腕部穿戴式可穿戴设备预测老年人(60岁及以上)的抑郁症状被纳入初始筛查.包括2012年1月至2022年9月发表的国际期刊的英文研究。通过叙事分析进一步分析了综述的研究。
    结果:21项纳入的研究大部分是在西方国家进行的,少数在亚洲和澳大利亚。大多数研究采用队列研究设计(n=12),其次是横截面设计(n=7)和病例对照设计(n=2)。最受欢迎的被动感测数据与使用活动描记术的睡眠和身体活动有关。睡眠特征,例如睡眠发作后长时间的觉醒,随着较低水平的体力活动,表现出与抑郁症的显著关联。然而,队列研究对来自不完整随访和潜在混杂效应的数据质量表示担忧.
    结论:被动传感数据,比如睡眠,和身体活动参数应促进抑郁症状的检测。然而,有效性,可靠性,可行性,和隐私问题仍需进一步探索。
    BACKGROUND: The elderly is commonly susceptible to depression, the symptoms for which may overlap with natural aging or other illnesses, and therefore miss being captured by routine screening questionnaires. Passive sensing data have been promoted as a tool for depressive symptoms detection though there is still limited evidence on its usage in the elderly. Therefore, this study aims to review current knowledge on the use of passive sensing data via smartphones and smartwatches in depressive symptom screening for the elderly.
    METHODS: The search of literature was performed in PubMed, IEEE Xplore digital library, and PsycINFO. Literature investigating the use of passive sensing data to screen, monitor, and/or predict depressive symptoms in the elderly (aged 60 and above) via smartphones and/or wrist-worn wearables was included for initial screening. Studies in English from international journals published between January 2012 to September 2022 were included. The reviewed studies were further analyzed by a narrative analysis.
    RESULTS: The majority of 21 included studies were conducted in Western countries with a few in Asia and Australia. Most studies adopted a cohort study design (n = 12), followed by cross-sectional design (n = 7) and a case-control design (n = 2). The most popular passive sensing data was related to sleep and physical activity using an actigraphy. Sleep characteristics, such as prolonged wakefulness after sleep onset, along with lower levels of physical activity, exhibited a significant association with depression. However, cohort studies expressed concerns regarding data quality stemming from incomplete follow-up and potential confounding effects.
    CONCLUSIONS: Passive sensing data, such as sleep, and physical activity parameters should be promoted for depressive symptoms detection. However, the validity, reliability, feasibility, and privacy concerns still need further exploration.
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  • 文章类型: Journal Article
    使用西方生物医学范式开发的筛查抑郁和焦虑的工具仍在全球第一民族人民中使用,尽管呼吁跨文化适应。该研究小组最近的工作发现,用于筛查抑郁和焦虑的工具不适用于居住在托雷斯海峡和澳大利亚北部半岛地区的澳大利亚原住民。本德尔菲研究的目的,更广泛的四期项目的第二阶段,是为了获得专家心理健康和/或社会和情感健康(SEWB)小组的共识,以告知开发适当的筛查工具。这项德尔福研究发生在2023年3月至5月之间。计划使用QualtricsTM进行三轮连续的匿名在线调查,虽然只有两个人需要达成75%的共识。第一轮寻求就是否需要开发新的筛选工具或是否可以使用现有工具达成共识。第二轮谈判达成共识。28位专家(47%的响应率)参加了两次Delphi回合。在第二轮中,83%的专家同意或强烈同意新的筛查工具,使用整体的第一民族社会和情感健康的概念,被开发。94%的人同意应该采取Yarning方法。这些发现使开发一种新的SEWB筛查工具成为可能,该工具采用了Yarning(叙事)方法,该方法旨在用于该地区的初级保健和老年环境。新工具有四个不同的Yarning领域:社区参与和行为;压力担忧;风险;和感觉强大。集成了工具使用指南以及摘要和建议部分。在宏观层面,该项目响应了以原住民世界观为基础的新筛查工具的需求。
    Tools screening depression and anxiety developed using the Western biomedical paradigm are still used with First Nations Peoples globally, despite calls for cross-cultural adaption. Recent work by this research team found that tools used to screen for depression and anxiety were inappropriate for use with Australian First Nations Peoples living in the Torres Strait and Northern Peninsula Area of Australia. The objective of this Delphi study, the second phase of a broader four-phase project, was to gain consensus from an expert mental health and/or social and emotional wellbeing (SEWB) panel to inform the development of an appropriate screening tool. This Delphi study took place between March and May 2023. Three sequential rounds of anonymous online surveys delivered using QualtricsTM were planned, although only two were needed to reach 75% consensus. The first round sought consensus on whether a new screening tool needed to be developed or whether existing tools could be used. The second round achieved consensus. Twenty-eight experts (47% response rate) participated across the two Delphi rounds. In the second round, 83% of these experts agreed or strongly agreed that a new screening tool, using the holistic First Nations concept of social and emotional wellbeing, be developed. Ninety-four percent of them agreed that it should take a Yarning approach. These findings enabled the development of a new SEWB screening tool that adopted a Yarning (narrative) approach designed for use in primary care and geriatric settings in the region. The new tool has four different Yarning areas: Community engagement and behaviour; Stress worries; Risk; and Feeling strong. Guidelines for tool use are integrated as well as Summary and Recommendation sections. At a macro-level this project responds to the need for new screening tools that are underpinned by First Nations worldviews.
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  • 文章类型: Journal Article
    背景:确定未确诊的晚期慢性肝病(ACLD)患者是一项公共卫生挑战。患有晚期纤维化或代偿性肝硬化的患者比失代偿性疾病的患者具有更好的结果,并且可能有资格进行干预以预防疾病进展。
    方法:开发了一种基于云的软件解决方案(“肝脏工具包”)来访问初级保健实践软件,以识别有ACLD风险的患者。提取临床病史和实验室检查结果,计算天冬氨酸转氨酶/血小板比值指数和纤维化4评分。确定的患者被召回进行评估,包括肝脏硬度测量(LSM)通过瞬时弹性成像。那些现有的肝硬化诊断被排除在外。
    结果:评估了9项一般实践中32,000多名成年人的现有实验室结果,以确定703名ACLD风险增加的患者(占队列的2.2%)。成功召回了一百七十九名患者(26%),和23/179(13%)被鉴定为患有ACLD(LSM≥10.0kPa)(10%处于不确定风险[LSM8.0-9.9kPa],77%处于纤维化低风险[LSM<8.0kPa]).在大多数情况下,肝病的诊断是新的,最常见的病因是代谢功能障碍相关的脂肪变性肝病(n=20,83%)。天冬氨酸转氨酶与血小板比值指数≥1.0和纤维化4≥3.25对检测ACLD的阳性预测值为19%和24%,分别。未参加召回的患者有更严重疾病的标志物,谷草转氨酶与血小板比率指数评分中位数较高(0.57vs.0.46,p=0.041)。
    结论:这个新的信息技术系统使用现有的实验室结果成功地筛选了一个大型初级保健队列,以确定风险增加的ACLD患者。召回的5例患者中有1例以上被发现患有肝病,需要专家随访。
    BACKGROUND: Identifying patients with undiagnosed advanced chronic liver disease (ACLD) is a public health challenge. Patients with advanced fibrosis or compensated cirrhosis have much better outcomes than those with decompensated disease and may be eligible for interventions to prevent disease progression.
    METHODS: A cloud-based software solution (\"the Liver Toolkit\") was developed to access primary care practice software to identify patients at risk of ACLD. Clinical history and laboratory results were extracted to calculate aspartate aminotransferase-to-platelet ratio index and fibrosis 4 scores. Patients identified were recalled for assessment, including Liver Stiffness Measurement (LSM) via transient elastography. Those with an existing diagnosis of cirrhosis were excluded.
    RESULTS: Existing laboratory results of more than 32,000 adults across nine general practices were assessed to identify 703 patients at increased risk of ACLD (2.2% of the cohort). One hundred seventy-nine patients (26%) were successfully recalled, and 23/179 (13%) were identified to have ACLD (LSM ≥10.0 kPa) (10% found at indeterminate risk [LSM 8.0-9.9 kPa] and 77% low risk of fibrosis [LSM <8.0 kPa]). In most cases, the diagnosis of liver disease was new, with the most common etiology being metabolic dysfunction-associated steatotic liver disease (n=20, 83%). Aspartate aminotransferase-to-platelet ratio index ≥1.0 and fibrosis 4 ≥3.25 had a positive predictive value for detecting ACLD of 19% and 24%, respectively. Patients who did not attend recall had markers of more severe disease with a higher median aspartate aminotransferase-to-platelet ratio index score (0.57 vs. 0.46, p=0.041).
    CONCLUSIONS: This novel information technology system successfully screened a large primary care cohort using existing laboratory results to identify patients at increased risk ACLD. More than 1 in 5 patients recalled were found to have liver disease requiring specialist follow-up.
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  • 文章类型: Journal Article
    为艾滋病毒阳性孕妇提供必要的孕前护理服务对于防止艾滋病毒传播给婴儿至关重要。这包括怀孕意向筛查服务,怀孕前充分的病毒载量监测和抑制,和必要的营养支持。在Nyeri县,艾滋病毒母婴传播(MTCT)的患病率为5.3%,高于5%的全球门槛。这项研究旨在评估Nyeri县的孕前护理服务对预防HIV传播给婴儿的影响。研究目标是评估艾滋病毒抗体阳性妇女的孕前护理服务的利用情况,特别关注妊娠意向筛查,病毒载量监测和抑制,怀孕前获得营养评估服务。此外,本研究旨在调查提供孕前护理服务与婴儿HIV结局之间的关系.
    这项横断面回顾性描述性研究采用分层抽样方法,选择了Nyeri县的8家4级和5级医院。目标人群包括在这些设施中寻求产后护理的感染艾滋病毒的妇女,样本为252名妇女,她们的艾滋病毒暴露婴儿年龄在两岁以下,并在各自的医院接受产后护理。社会人口统计学特征,包括年龄,婚姻状况,和教育水平,被收集。数据分析涉及描述性和推断性统计。
    我们的调查结果显示,寻求产后护理的HIV阳性妇女中,只有34.2%的人获得了与妊娠意向筛查有关的信息或服务,孕前护理的一个关键方面。参与这项研究的女性中几乎有一半(46.4%)在怀孕前进行了病毒载量测量,这是孕前保健的另一个关键组成部分。此外,这些妇女中有85.6%在怀孕期间从医疗保健提供者那里获得了营养服务。有趣的是,所有接受任何孕前护理服务的女性均报告其婴儿存活且HIV检测呈阴性.
    孕前护理对于预防艾滋病毒母婴传播至关重要。应努力确保所有计划怀孕的感染艾滋病毒的妇女都能获得孕前护理服务。
    UNASSIGNED: the provision of essential preconception care services for HIV-positive pregnant women is crucial to prevent HIV transmission to infants. This includes pregnancy intention screening services, adequate viral load monitoring and suppression before conception, and necessary nutritional support. In Nyeri County, the prevalence of Mother-to-Child Transmission (MTCT) of HIV is 5.3%, which is higher than the global threshold of 5%. This study aims to evaluate the impact of pre-conception care services in preventing HIV transmission to infants in Nyeri County. The study objectives are to assess the utilization of pre-conception care services among HIV-positive women, specifically focusing on pregnancy intention screening, viral load monitoring and suppression, and access to nutritional assessment services before pregnancy. Additionally, the study aims to investigate the relationship between the provision of pre-conception care services and infant HIV outcomes.
    UNASSIGNED: this cross-sectional retrospective descriptive study employed stratified sampling to select eight level 4 and level 5 hospitals in Nyeri County. The target population consisted of HIV-infected women seeking postnatal care in these facilities, with a sample size of 252 women who had HIV-exposed infants under two years old and were receiving post-natal care at the respective hospitals. Sociodemographic characteristics, including age, marital status, and education level, were collected. Data analysis involved both descriptive and inferential statistics.
    UNASSIGNED: our findings revealed that only 34.2% of HIV-positive women seeking postnatal care had received information or services related to pregnancy intention screening, a crucial aspect of pre-conception care. Almost half (46.4%) of the women who participated in the study had undergone viral load measurements before pregnancy, which is another critical component of preconception care. Additionally, 85.6% of these women had received nutritional services during pregnancy from their healthcare providers. Interestingly, all women who received any pre-conception care services reported that their infants were alive and tested HIV-negative.
    UNASSIGNED: preconception care is crucial in preventing mother-to-child transmission of HIV. Efforts should be made to ensure that all HIV-infected women planning to conceive have access to preconception care services.
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  • 文章类型: Journal Article
    增加检测是消除丙型肝炎的关键。这项回顾性研究旨在评估维多利亚州一家地区医院的患者检测级联,澳大利亚,注射毒品或患有丙型肝炎的人,确定错过的丙型肝炎护理机会。包括2018年至2021年的成人医院住院患者和急诊科(ED)参与者,他们的出院或ED总结有静脉用药(IDU)或丙型肝炎的适应症。数据来源:住院,病理学,医院药房,和门诊病人。我们通过测试级联评估进展,并对丙型肝炎护理的预测因子进行逻辑回归分析,包括测试和治疗。在79,923名成年人中,1345(1.7%)有IDU编码的分离,628(0.8%)有丙型肝炎编码的分离(N=1892)。研究结束时的丙型肝炎病毒(HCV)状态为1569(82.9%)未知。ED入院与不提供丙型肝炎护理的几率增加相关(比值比3.29,95%置信区间2.42-4.48)。我们医院超过2%的住院病人有检测指征,然而,尽管他们与医院有联系,但大多数人都没有接受检查。当我们在本地区努力消除HCV时,我们需要在感染风险较高的人群中纳入检测和联系策略。
    Increasing testing is key to achieving hepatitis C elimination. This retrospective study aimed to assess the testing cascade of patients at a regional hospital in Victoria, Australia, who inject drugs or are living with hepatitis C, to identify missed opportunities for hepatitis C care. Adult hospital inpatients and emergency department (ED) attendees from 2018 to 2021 with indications for intravenous drug use (IDU) or hepatitis C on their discharge or ED summary were included. Data sources: hospital admissions, pathology, hospital pharmacy, and outpatients. We assessed progression through the testing cascade and performed logistic regression analysis for predictors of hepatitis C care, including testing and treatment. Of 79,923 adults admitted, 1345 (1.7%) had IDU-coded separations and 628 (0.8%) had hepatitis C-coded separations (N = 1892). Hepatitis C virus (HCV) status at the end of the study was unknown for 1569 (82.9%). ED admissions were associated with increased odds of not providing hepatitis C care (odds ratio 3.29, 95% confidence interval 2.42-4.48). More than 2% of inpatients at our hospital have an indication for testing, however, most are not being tested despite their hospital contact. As we work toward HCV elimination in our region, we need to incorporate testing and linkage strategies within hospital departments with a higher prevalence of people at risk of infection.
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  • 文章类型: Journal Article
    乙型肝炎核心相关抗原(HBcrAg)反映肝内共价闭合环状DNA的活性。即使在血清HBVDNA或乙型肝炎表面抗原检测不到的慢性乙型肝炎患者中,也可以检测到HBcrAg。基于两个概念开发了HBcrAg测量系统。一种是全自动和高度敏感的HBcrAg测定(iTACT-HBcrAg),另一种是可以在资源有限的地区使用的即时检测(POCT)。iTACT-HBcrAg是HBVDNA的替代方法,用于监测HBV再激活和预测肝细胞癌的发展。这种经过验证的生物标志物在日本的常规临床实践中是可用的。目前,预防母婴传播的国际指南建议对病毒载量高的孕妇进行抗HBV预防。然而,超过95%的HBV感染者生活在HBVDNA定量普遍不可用的国家.鉴于这种情况,用于POCT的快速和简单的HBcrAg测定将是非常有效的。长期抗HBV治疗可能有潜在的副作用,适当的治疗应提供给符合条件的患者。因此,确定抗HBV治疗适应症的简单方法将是理想的。这篇评论提供了关于HBcrAg在HBV管理的临床价值的最新信息,基于ITACT-HBcrAg或POCT。
    Hepatitis B core-related antigen (HBcrAg) reflects the activity of intrahepatic covalently closed circular DNA. HBcrAg can be detected even in chronic hepatitis B patients in whom serum HBV DNA or hepatitis B surface antigen is undetectable. The HBcrAg measurement system was developed based on two concepts. One is a fully-automated and highly-sensitive HBcrAg assay (iTACT-HBcrAg) and the other is a point-of-care testing (POCT) that can be used in in resource-limited areas. iTACT-HBcrAg is an alternative to HBV DNA for monitoring HBV reactivation and predicting the development of hepatocellular carcinoma. This validated biomarker is available in routine clinical practice in Japan. Currently, international guidelines for the prevention of mother-to-child transmission recommend anti-HBV prophylaxis for pregnant women with high viral loads. However, over 95% of HBV-infected individuals live in countries where HBV DNA quantification is widely unavailable. Given this situation, a rapid and simple HBcrAg assay for POCT would be highly effective. Long-term anti-HBV therapy may have potential side effects and appropriate treatment should be provided to eligible patients. Therefore, a simple method of determining the indication for anti-HBV treatment would be ideal. This review provides up-to-date information regarding the clinical value of HBcrAg in HBV management, based on iTACT-HBcrAg or POCT.
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