Viral load monitoring

病毒载量监测
  • 文章类型: Journal Article
    乌克兰面临着COVID-19发病率和死亡率的大幅波动,伴随着不断升级的艾滋病毒流行病。这项混合方法研究,在2022年2月至8月间进行的,采用了序贯解释性设计,结合了国家数据的定量分析和定性访谈,以调查大流行对乌克兰艾滋病毒服务的影响。观察到的趋势证实,由于后勤挑战,大流行严重扰乱了基于设施的艾滋病毒检测,增加了医护人员的负担,和供应短缺。同时,基于社区的测试显示了韧性,主要归因于方案调整,而不是大流行本身。抗逆转录病毒疗法的开始下降,尤其是在最初的封锁期间,反映治疗能力下降。尽管面临这些挑战,远程医疗和家庭药物递送创新支持抗逆转录病毒治疗的依从性。此外,病毒载量测试和抑制率的改善显示了医疗保健弹性。这项研究强调了对适应性的关键需求,危机中的可持续医疗战略,在与俄罗斯的战争中强调。
    COVID-19如何改变乌克兰的艾滋病毒护理:挑战,适应,和创新在最近的时代,乌克兰,像许多其他国家一样,一直在处理两大健康问题:COVID-19大流行和持续的艾滋病毒流行。到2022年初,欧洲报告的COVID-19病例超过1.04亿例,乌克兰面临着冠状病毒和日益严重的艾滋病毒危机,尤其是在老年人中,并通过各种方式传播。这项研究,在2022年2月至8月间完成的工作,旨在了解COVID-19大流行如何影响乌克兰的艾滋病毒服务。通过使用数字和对卫生官员的深入采访,服务提供商,和社区成员,在这个充满挑战的时期,我们调查了艾滋病毒护理的状况。我们的研究结果表明,大流行对艾滋病毒服务的影响是混合的。尽管发生了变化,但社区中进行的艾滋病毒检测仍设法进行调整并继续进行,医疗机构的服务遇到了许多问题。封锁和限制使人们很难到达这些地方,导致艾滋病毒检测的大幅下降和抗逆转录病毒治疗的开始,管理艾滋病毒的关键治疗方法。尽管面临这些挑战,有了重要的变化和新的想法。远程医疗和提供药物等服务已开始,以确保患者可以继续进行抗逆转录病毒治疗而没有任何中断。病毒载量测试,这对于检查艾滋病毒治疗的效果很重要,慢慢上升,展示了一个能够适应大流行压力的系统。在COVID-19大流行期间,乌克兰的一些艾滋病毒服务机构表现出了调整和持续的能力,这凸显了对医疗保健提供方法的需求,这些方法可以根据需要进行更改,并随着时间的推移而持续。这项研究指出了持续努力支持艾滋病毒感染者的重要性,尤其是在面临重大挑战时,并为在与俄罗斯的冲突等困难时期管理医疗服务提供了宝贵的经验教训。
    Ukraine faced significant fluctuations in COVID-19 morbidity and mortality, alongside an escalating HIV epidemic. This mixed-methods study, conducted between February and August 2022, employed a sequential explanatory design combining a quantitative analysis of national data and qualitative interviews to investigate the pandemic\'s effects on HIV services in Ukraine. The observed trends confirmed that the pandemic significantly disrupted facility-based HIV testing due to logistical challenges, an increased burden on healthcare workers, and supply shortages. Meanwhile, community-based testing showed resilience, largely attributed to programmatic adjustments rather than the pandemic itself. The initiation of antiretroviral therapy declined, especially during initial lockdowns, reflecting diminished treatment capacities. Despite these challenges, telemedicine and home medication delivery innovations supported antiretroviral therapy adherence. Furthermore, improvements in viral load testing and suppression rates showed healthcare resilience. The study highlights the critical need for adaptable, sustainable healthcare strategies in crises, emphasized during the war with Russia.
    How COVID-19 Changed HIV Care in Ukraine: Challenges, Adaptations, and Innovations In recent times, Ukraine, like many other countries, has been dealing with two big health problems: the COVID-19 pandemic and the ongoing HIV epidemic. With over 104 million cases of COVID-19 reported in Europe by early 2022, Ukraine faced the coronavirus as well as an increasing HIV crisis, especially among older adults and through various ways of spreading. This study, done between February and August 2022, aimed to understand how the COVID-19 pandemic affected the HIV services in Ukraine. By using numbers and in-depth interviews with health officials, service providers, and community members, we looked into the state of HIV care during this challenging period. Our findings show that the effects of the pandemic on HIV services were mixed. While HIV testing done in the community managed to adjust and keep going despite the changes, services in healthcare facilities ran into many problems. Lockdowns and restrictions made it hard for people to get to these places, leading to a big drop in HIV testing and the start of antiretroviral therapy, a key treatment for managing HIV. Despite these challenges, there were important changes and new ideas. Services such as telemedicine and delivering medication were started to make sure patients could continue their antiretroviral therapy without any breaks. The testing for viral load, which is important for checking how well HIV treatment is working, slowly went up, showing a system that could adapt to the pressures of the pandemic. The ability to adjust and keep going shown by some HIV services in Ukraine during the COVID-19 pandemic highlights the need for healthcare delivery methods that can change as needed and last over time. This study points out the importance of ongoing efforts to support people living with HIV, especially when facing big challenges, and gives valuable lessons for managing healthcare services during difficult times like the conflict with Russia.
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  • 文章类型: Journal Article
    使用兴奋剂的患有HIV的男性(SMM)难以达到和维持无法检测到的病毒载量(VL)。基于家庭的VL监测可以通过支持临时,可检测VL的早期鉴定。我们描述了与使用兴奋剂的HIVSMM中基于实验室的VL测试的家庭收集设备相关的实施挑战。从2022年3月至5月,通过同意联系参与者注册表招募了患有HIV的cisgenderSMM报告中度至重度兴奋剂使用障碍和欠佳(<90%)过去一个月的抗逆转录病毒治疗(ART)依从性。符合条件的男性完成了基于电话会议的知情同意书,并邮寄了HemaSpot-HD采血设备(体积容量160µL;检测下限839份/mL),并提供了家庭自我采血和退货的详细说明。实施过程措施包括估计的血容量和VL定量。在24名参与者中,21(88%)返回标本,在向参与者发送设备和接收标本之间的中位持续时间为23天(范围:10-71天)。其中,13/21(62%)包括足够的血液(≥40µL),以确保可检测/不可检测结果的置信度;10/13(77%)具有可检测的VL,4/10(40%)在≥839拷贝/mL时可量化。其余8/21的血容量较低(<40微升),但3/8(38%)仍有可检测的VL,1/3(33%)可量化≥839拷贝/mL。在这些高优先级人群中,使用HemaSpot-HD进行≥40µL的家庭血液采集是可行的,其中>50%具有检测到的VL。然而,通过电话会议建立融洽的关系并提供详细的说明以达到足够的样本量,可以加强使用HemaSpot-HD对ART依从性有困难的患者进行临时VL监测。
    Sexually minoritized men (SMM) with HIV who use stimulants experience difficulties achieving and maintaining an undetectable viral load (VL). Home-based VL monitoring could augment HIV care by supporting interim, early identification of detectable VL. We describe implementation challenges associated with a home-collection device for laboratory-based VL testing among SMM with HIV who use stimulants. From March-May 2022, cisgender SMM with HIV reporting moderate-to-severe stimulant use disorder and suboptimal (< 90%) past-month antiretroviral therapy (ART) adherence were recruited via a consent-to-contact participant registry. Eligible men completed teleconference-based informed consent and were mailed a HemaSpot-HD blood collection device (volume capacity 160 µL; lower limit of detection 839 copies/mL) with detailed instructions for home blood self-collection and return shipment. Implementation process measures included estimated blood volume and VL quantification. Among 24 participants, 21 (88%) returned specimens with a median duration of 23 days (range: 10-71 days) between sending devices to participants and receiving specimens. Of these, 13/21 (62%) included enough blood (≥ 40 µL) for confidence in detectable/undetectable results; 10/13 (77%) had detectable VL, with 4/10 (40%) were quantifiable at ≥ 839 copies/mL. The remaining 8/21 had low blood volume (< 40 µL), but 3/8 (38%) still had detectable VL, with 1/3 (33%) quantifiable at ≥ 839 copies/mL. Home blood collection of ≥ 40 µL using HemaSpot-HD was feasible among this high-priority population, with > 50% having a VL detected. However, interim VL monitoring using HemaSpot-HD among those experiencing difficulties with ART adherence may be strengthened by building rapport via teleconferencing and providing detailed instructions to achieve adequate sample volume.
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  • 文章类型: Journal Article
    背景:世界卫生组织实施了多种艾滋病毒预防政策,并努力到2020年实现90-90-90目标,到2030年实现95-95-95目标,即95%的艾滋病毒感染者知道自己的艾滋病毒状况,95%的艾滋病毒感染者接受持续的护理和药物治疗,95%的HIV患者表现出病毒抑制。然而,如何测量病毒抑制的状态各不相同,很难指出艾滋病毒护理的质量。该研究旨在检查这些情况下的长期病毒载量抑制,并探索影响长期病毒载量控制的潜在因素。
    方法:这项研究分析了从通知到2019-2020年期间仍然存活的HIV患者的病毒载量检测数据。计算了三个指标,包括持久的病毒抑制,病毒血症复制年,病毒载量>1,500拷贝/毫升,评估它们之间的差异。
    结果:在纳入研究的27,706例中,持续病毒载量抑制的比例为87%,4%的病毒载量超过1,500拷贝/毫升。从通知到病毒载量抑制的平均持续时间为154天,病毒年复制的几何平均值为90拷贝*年/毫升。关于最后可用的病毒载量测量,96%的病例有检测不到的病毒载量。然而,我们观察到9.3%的病例,虽然他们最后一次测量有检测不到的病毒载量,没有显示一致的长期病毒载量抑制。与非持续性病毒载量抑制相关因素的分析显示,年轻年龄组的风险更高。具有高中或以下教育水平的个人,注射吸毒者,东部地区的病例,那些在地区医院寻求治疗的人,有耐药性数据的病例,医疗保健连续性较低的个人,以及在研究期间初始CD4计数低于350的患者。
    结论:建议将其与持续病毒载量抑制指标相结合,以更准确地评估感染社区内HIV传播的风险。
    The World Health Organisation has implemented multiple HIV prevention policies and strived to achieve the 90-90-90 goal by 2020, achieving the 95-95-95 goal by 2030, which refers to 95% of patients living with HIV knowing their HIV status, 95% of patients living with HIV receiving continual care and medication, and 95% of patients living with HIV exhibiting viral suppression. However, how to measure the status of viral suppression varies, and it is hard to indicate the quality of HIV care. The study aimed to examine the long-term viral load suppression in these cases and explore potential factors affecting the control of long-term viral load.
    This study analyzed viral load testing data from HIV patients who are still alive during the period from notification up to 2019-2020. Three indicators were calculated, including durable viral suppression, Viremia copy-years, and Viral load > 1,500 copies/ml, to assess the differences between them.
    Among the 27,706 cases included in the study, the proportion of persistent viral load suppression was 87%, with 4% having viral loads exceeding 1,500 copies/ml. The average duration from notification to viral load suppression was 154 days, and the geometric mean of annual viral replication was 90 copies*years/ml. Regarding the last available viral load measurement, 96% of cases had an undetectable viral load. However, we observed that 9.3% of cases, while having an undetectable viral load for their last measurement, did not show consistent long-term viral load suppression. An analysis of factors associated with non-persistent viral load suppression revealed higher risk in younger age groups, individuals with an educational level of high school or below, injection drug users, cases from the eastern region, those seeking care at regional hospitals, cases with drug resistance data, individuals with lower healthcare continuity, and those with an initial CD4 count below 350 during the study period.
    The recommendation is to combine it with the indicator of sustained viral load suppression for a more accurate assessment of the risk of HIV transmission within the infected community.
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  • 文章类型: Journal Article
    患有人类免疫缺陷病毒(HIV)的母亲所生的孩子有健康状况不佳的风险,但表征这些关联的数据有限。我们的目标是确定母体病毒抑制对HIV暴露但未感染(HEU)的婴儿的生长方式和营养不良的影响。
    我们对肯尼亚的HEU婴儿及其母亲(2015年9月至2019年3月)的临床数据进行了回顾性队列分析。根据母体病毒抑制状态(≥或<1000拷贝/mL)对婴儿进行分层;使用t检验比较组。生长指标用卡方法评价,费希尔的精确,和曲线下的面积。中度至重度体重不足状态,发育迟缓,消瘦是按年龄体重(WFA)定义的,年龄身高(HFA),和身高体重(WFH),z分数≤2,用于定义营养不良。进行了多变量逻辑回归分析,以评估WFH和HFA之间与营养不良指标的潜在关联。
    在674名HEU婴儿中,48.7%为男性,85.0%的母亲受到病毒抑制。第一次和最后一次就诊的平均年龄为1.5和16.4个月,分别。随着时间的推移,WFA和HFAz分数因性别而异,WFA和HFA根据母体病毒抑制而有所不同(P<0.05)。男性婴儿发育迟缓的调整几率较高,随着年龄的增长,他们变得体重不足或发育不良的几率略有增加。与预防垂直传播(PVT)相关的母亲病毒抑制和母亲抗逆转录病毒治疗的开始时间没有显着影响营养不良指标。
    母亲的病毒抑制状态与HEU患儿出现更严重营养不良指标的几率增加无关。然而,随着时间的推移,整体增长模式,以增长指标的z分数衡量,根据母体病毒抑制状况,确实有所不同,在较小的程度上,按性别。
    UNASSIGNED: Children born to mothers living with human immunodeficiency virus (HIV) are at risk for poor health outcomes but data characterizing these associations are limited. Our objective was to determine the impact of maternal viral suppression on growth patterns and malnutrition for infants who are HIV-exposed but uninfected (HEU).
    UNASSIGNED: We conducted a retrospective cohort analysis of clinical data for infants who were HEU and their mothers (September 2015 - March 2019) in Kenya. Infants were stratified based on maternal viral suppression status (≥ or <1000 copies/mL); t-tests were used to compare groups. Growth indicators were evaluated with Chi-square, Fisher\'s exact, and area under the curve. Moderate-to-severe underweight status, stunting, and wasting were defined by weight-for-age (WFA), height-for-age (HFA), and weight-for-height (WFH), z-scores ≤2, and were used to define malnutrition. Multivariate logistic regression analyses were performed to evaluate potential associations with malnutrition indicators between WFH and HFA.
    UNASSIGNED: Among 674 infants who were HEU, 48.7% were male and 85.0% had mothers who were virally suppressed. The median age at first and last clinic visits was 1.5 and 16.4 months, respectively. WFA and HFA z-scores over time differed by sex, and WFA and HFA differed based on maternal viral suppression (P < 0.05). Male infants had higher adjusted odds for stunted status, and as children aged, they had slightly increased odds of becoming underweight or stunted. Maternal viral suppression and timing of maternal antiretroviral therapy initiation in relation to the prevention of vertical transmission (PVT) enrollment did not significantly affect malnutrition indicators.
    UNASSIGNED: Maternal viral suppression status was not associated with increased odds of more severe malnutrition indicators in children who were HEU. However, overall growth patterns over time, measured by z-scores of growth indicators, did differ based on maternal viral suppression status, and to a lesser degree, by gender.
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  • 文章类型: Journal Article
    免疫受损个体中的BK病毒(BKV)感染或再激活可导致不良健康后果,包括肾移植患者中的BKV相关肾病(BKVAN)和异基因造血干细胞移植受者中的BKV相关出血性膀胱炎(BKV-HC)。监测BKV病毒载量在移植后患者护理中起着重要作用。本研究评估了AlinitymBKV仅研究使用(IUO)测定的性能。对于所有测试的小组成员(2.0-7.3LogIU/mL),AlinitymBKVIUO测定的线性相关系数为1.000,精密度为SD≤0.25LogIU/mL。在50IU/mL时的检出率为100%。在Abbottm2000平台上使用DNA或总核酸(TNA)的样本提取方案,将AlinitymBKVIUO与ELITechMGBAlertBKV实验室开发的测试(LDT)进行比较,测试的临床血浆样本的相关系数分别为0.900和0.963,和0.03和-0.54LogIU/mL的平均偏差,分别。AlinitymBKVIUO与AltonaRealStarBKV和RochecobasBKV测定的相关系数分别为0.941和0.980,平均偏差为-0.47和-0.31LogIU/mL,分别。使用TNA标本提取在AlintiymBKVIUO和ELITechBKVLDT上测试的尿液标本的相关系数为0.917,平均偏差为0.29LogIU/mL。AlinitymBKVIUO测定在动态范围内以高精度进行,并与其他可用的BKV测定良好关联。
    目的:移植患者体内的BK病毒(BKV)可导致不良健康后果。病毒载量监测在移植后患者护理中很重要。本研究用目前可用的测定法评估了AlinitymBKV测定法。
    BK virus (BKV) infection or reactivation in immunocompromised individuals can lead to adverse health consequences including BKV-associated nephropathy (BKVAN) in kidney transplant patients and BKV-associated hemorrhagic cystitis (BKV-HC) in allogeneic hematopoietic stem cell transplant recipients. Monitoring BKV viral load plays an important role in post-transplant patient care. This study evaluates the performance of the Alinity m BKV Investigational Use Only (IUO) assay. The linearity of the Alinity m BKV IUO assay had a correlation coefficient of 1.000 and precision of SD ≤ 0.25 Log IU/mL for all panel members tested (2.0-7.3 Log IU/mL). Detection rate at 50 IU/mL was 100%. Clinical plasma specimens tested comparing Alinity m BKV IUO to ELITech MGB Alert BKV lab-developed test (LDT) on the Abbott m2000 platform using specimen extraction protocols for DNA or total nucleic acid (TNA) resulted in coefficient of correlation of 0.900 and 0.963, respectively, and mean bias of 0.03 and -0.54 Log IU/mL, respectively. Alinity m BKV IUO compared with Altona RealStar BKV and Roche cobas BKV assays demonstrated coefficient of correlation of 0.941 and 0.980, respectively, and mean bias of -0.47 and -0.31 Log IU/mL, respectively. Urine specimens tested on Alintiy m BKV IUO and ELITech BKV LDT using TNA specimen extraction had a coefficient of correlation of 0.917 and mean bias of 0.29 Log IU/mL. The Alinity m BKV IUO assay was performed with high precision across the dynamic range and correlated well with other available BKV assays.
    OBJECTIVE: BK virus (BKV) in transplant patients can lead to adverse health consequences. Viral load monitoring is important in post-transplant patient care. This study evaluates the Alinity m BKV assay with currently available assays.
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  • 文章类型: Journal Article
    背景:我们分析了STREAM(简化HIV治疗和监测)研究,以确定在开始抗逆转录病毒治疗(ART)后18个月与HIV病毒血症和保留不良相关的危险因素。
    方法:STREAM研究是一项在德班的开放标签随机对照试验,南非,该研究招募了390名HIV感染者,他们在ART开始后约6个月进行首次HIV病毒载量测量。我们使用具有稳健标准误差的改良泊松回归来描述基线特征与ART开始后18个月的三种HIV结局之间的关联:HIV病毒血症(>50拷贝/mL),在艾滋病毒护理中的保留率差,以及护理保留不良和/或HIV病毒血症的复合结局。
    结果:开始ART后大约18个月,45名(11.5%)参与者不再接受护理,43名(11.8%)患有病毒血症。ART开始后6个月CD4计数<200的人和病毒血症的人在ART开始后18个月明显更有可能发生病毒血症(分别为校正相对危险度[aRR]4.0;95%置信区间[CI]2.1-7.5和aRR5.5;95%CI3.3-9.0)。在开始ART后未透露其HIV感染状况和病毒血症的患者在12个月后更有可能未被保留在治疗中(aRR2.6;95%CI1.1-6.1和aRR2.2;95%CI1.0-4.8)。CD4计数<200的人和病毒血症患者在ART开始18个月后更有可能无法达到复合结局。
    结论:ART开始后的病毒血症是后续病毒血症和护理保留不良的最强预测因子。了解早期指标可以帮助我们的干预措施,以更好地吸引更有可能经历持续性病毒血症或脱离艾滋病毒护理的人。
    BACKGROUND: We analyzed the STREAM (Simplifying HIV TREAtment and Monitoring) study to determine risk factors associated with HIV viraemia and poor retention 18 months after initiation of antiretroviral therapy (ART).
    METHODS: The STREAM study was an open-label randomized controlled trial in Durban, South Africa, that enrolled 390 people living with HIV presenting for their first HIV viral load measurement ~6 months after ART initiation. We used modified Poisson regression with robust standard errors to describe associations between baseline characteristics and three HIV outcomes 18 months after ART initiation: HIV viraemia (>50 copies/mL), poor retention in HIV care, and a composite outcome of poor retention in care and/or HIV viraemia.
    RESULTS: Approximately 18 months after ART initiation, 45 (11.5%) participants were no longer retained in care and 43 (11.8%) had viraemia. People with CD4 counts <200 and those with viraemia 6 months after ART initiation were significantly more likely to have viraemia 18 months after ART initiation (adjusted relative risk [aRR] 4.0; 95% confidence interval [CI] 2.1-7.5 and aRR 5.5; 95% CI 3.3-9.0, respectively). People who did not disclose their HIV status and had viraemia after ART initiation were more likely to not be retained in care 12 months later (aRR 2.6; 95% CI 1.1-6.1 and aRR 2.2; 95% CI 1.0-4.8). People with a CD4 count <200 and those with viraemia were more likely to not achieve the composite outcome 18 months after ART initiation.
    CONCLUSIONS: Viraemia after ART initiation was the strongest predictor of subsequent viraemia and poor care retention. Understanding early indicators can help target our interventions to better engage people who may be more likely to experience persistent viraemia or disengage from HIV care.
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  • 文章类型: Journal Article
    目标:为了应对COVID-19大流行,从2020年3月起限制HIV门诊就诊,导致临床稳定且病毒学上受到抑制的HIV感染者(PLWH)的HIV病毒载量(VL)监测频率降低(以前为6个月)。我们调查了在这一期间减少监测的病毒学结果,并与前一年进行了比较,在COVID-19大流行之前。
    方法:从2018年3月至2019年2月,确定了抗逆转录病毒治疗(ART)中检测不到VL(<200HIVRNA拷贝/mL)的HIV感染者。我们确定了COVD-19前期(2019年3月至2020年2月)和COVID-19期间(2020年3月至2021年2月)的VL结果,当时监测受到限制。评估每个周期VL测试之间的频率和最长持续时间,确定了可检测VL的病毒学后遗症。
    结果:在ART上被病毒学抑制的2677PLWH(2018年3月至2019年2月),在COVID前期和COVID期间,在2571例(96.0%)和2003年(77.9%)进行了VL的测量和检测,分别。VL测试的平均(SD)数量为2.3(1.08)和1.1(0.83),VL测试之间的平均最长持续时间为29.5周(SD8.25,3.1%≥12个月)和43.7周(12.64,28.4%≥12个月),在科维德前期和科维德时期,分别。在COVID-19期间有一个或多个可检测的VL的45名个体中,两个产生了新的耐药突变。
    结论:在大多数接受ART的稳定个体中,降低VL监测与较差的病毒学结果无关。在≥31个月后,每20人中就有1人没有返回进行VL测试,这些人的伤害风险未知。
    OBJECTIVE: In response to the COVID-19 pandemic, HIV outpatient attendances were restricted from March 2020, resulting in reduced frequency of HIV viral load (VL) monitoring (previously 6-monthly) in clinically stable and virologically suppressed people living with HIV (PLWH). We investigated virological outcomes during this period of reduced monitoring and compared with the previous year, prior to the COVID-19 pandemic.
    METHODS: People living with HIV with undetectable VL (<200 HIV RNA copies /mL) on antiretroviral therapy (ART) were identified from March 2018 to February 2019. We determined VL outcomes during the pre-COVD-19 period (March 2019-February 2020) and the COVID-19 period (March 2020-February 2021) when monitoring was restricted. Frequency and longest durations between VL tests in each period were evaluated, and virological sequelae in those with detectable VL were determined.
    RESULTS: Of 2677 PLWH virologically suppressed on ART (March 2018-February 2019), VLs were measured and undetectable in 2571 (96.0%) and 2003 (77.9%) in the pre-COVID and COVID periods, respectively. Mean (SD) numbers of VL tests were 2.3 (1.08) and 1.1 (0.83) and mean longest duration between VL tests was 29.5 weeks (SD 8.25, 3.1% were ≥12 months) and 43.7 weeks (12.64, 28.4% were ≥12 months), in the pre-COVID and COVID periods, respectively. Of 45 individuals with one or more detectable VL during the COVID-19 period, two developed new drug resistance mutations.
    CONCLUSIONS: Reduced VL monitoring was not associated with poorer virological outcomes in the majority of stable individuals receiving ART. One in 20 individuals had not returned for VL testing after ≥31 months and the risk of harm in these individuals is unknown.
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  • 文章类型: Journal Article
    2016年,我们进行了系统评价,以评估在低收入和中等收入国家(LMICs)接受抗逆转录病毒治疗(ART)的HIV感染者(PLHIV)治疗监测的可行性。符合90-90-90治疗目标。到2020年,全球估计表明90-90-90的目标,特别是最后90个,在许多低收入国家仍然无法实现。本研究旨在回顾进展并确定公共卫生干预措施的需求,以改善LMICs中PLHIV的病毒载量监测和病毒抑制。
    使用为2016年审查开发的初始搜索策略的更新进行了文献检索。搜索电子数据库(Medline和PubMed),以确定2015年12月至2021年8月以英文发表的相关文献。主要结果是初始病毒载量(VL)监测(接受VL测试的ART和符合VL监测的PLHIV比例)。次要结果包括随访VL监测(在最初的VL升高测试后接受随访VL的PLHIV比例),治疗失败的确认(VL结果连续两次升高的PLHIV的比例)和转换治疗方案的比例(确认治疗失败后转换治疗方案的PLHIV的比例).
    搜索策略确定了1984年的非重复记录,其中34项研究纳入综述.在研究设置/国家(范围:12-93%中位数:74%IQR:46-82%)和研究人群(成人(范围:25-96%,中位数:67%IQR:50-84%),孩子们,青少年/年轻人(范围:2-94%,中位数:72%IQR:47-85%),和孕妇(范围:32-82%,中位数:57%IQR:43-71%))。基于社区的模型报告了更高的VL监测(中位数:85%,IQR:82-88%)与初级医疗机构的分散护理相比(中位数:64%,IRQ:48-82%)。观察到随访VL监测的次优摄取和低方案转换率。
    研究环境和研究人群中的VL覆盖率存在明显差距,在撒哈拉以南非洲以外的地区,数据可用性有限。需要进一步的研究来填补数据空白。创新的发展和实施,需要基于社区的干预措施来改善VL监测,并解决未能实现病毒抑制的ART上PLHIV的“失败级联”问题.
    In 2016, we conducted a systematic review to assess the feasibility of treatment monitoring for people living with HIV (PLHIV) receiving antiretroviral therapy (ART) in low and middle-income countries (LMICs), in line with the 90-90-90 treatment target. By 2020, global estimates suggest the 90-90-90 target, particularly the last 90, remains unattainable in many LMICs. This study aims to review the progress and identify needs for public health interventions to improve viral load monitoring and viral suppression for PLHIV in LMICs.
    A literature search was conducted using an update of the initial search strategy developed for the 2016 review. Electronic databases (Medline and PubMed) were searched to identify relevant literature published in English between Dec 2015 and August 2021. The primary outcome was initial viral load (VL) monitoring (the proportion of PLHIV on ART and eligible for VL monitoring who received a VL test). Secondary outcomes included follow-up VL monitoring (the proportion of PLHIV who received a follow-up VL after an initial elevated VL test), confirmation of treatment failure (the proportion of PLHIV who had two consecutive elevated VL results) and switching treatment regimen rates (the proportion of PLHIV who switched treatment regimen after confirmation of treatment failure).
    The search strategy identified 1984 non-duplicate records, of which 34 studies were included in the review. Marked variations in initial VL monitoring coverage were reported across study settings/countries (range: 12-93% median: 74% IQR: 46-82%) and study populations (adults (range: 25-96%, median: 67% IQR: 50-84%), children, adolescents/young people (range: 2-94%, median: 72% IQR: 47-85%), and pregnant women (range: 32-82%, median: 57% IQR: 43-71%)). Community-based models reported higher VL monitoring (median: 85%, IQR: 82-88%) compared to decentralised care at primary health facility (median: 64%, IRQ: 48-82%). Suboptimal uptake of follow-up VL monitoring and low regimen switching rates were observed.
    Substantial gaps in VL coverage across study settings and study populations were evident, with limited data availability outside of sub-Saharan Africa. Further research is needed to fill the data gaps. Development and implementation of innovative, community-based interventions are required to improve VL monitoring and address the \"failure cascade\" in PLHIV on ART who fail to achieve viral suppression.
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  • 文章类型: Journal Article
    赞比亚最近实现了艾滋病规划署90-90-90艾滋病毒流行病控制的治疗目标;然而,住院设施继续面临着晚期HIV疾病患者和HIV相关死亡率的巨大负担.晚期艾滋病毒疾病的管理,遵循门诊设置的指导方针,在复杂的住院设置中可能更加困难。我们评估了住院期间对HIV指南的依从性,包括机会性感染(OI)筛查,治疗,和预防。
    我们审查了入住卢萨卡大学教学医院的艾滋病毒感染者(PLHIV)的住院病历,2018年12月1日至2019年4月30日之间的赞比亚。我们收集了病人的人口统计数据,抗逆转录病毒疗法(ART),HIV生物标志物,和OI筛查和治疗-包括结核病(TB),隐球菌,和复方新诺明(CTX)预防OI。筛查和治疗级联是根据2017年WHO高级HIV指南构建的。
    我们审查了200份晚期HIV病患者的档案;其中92%(184/200)以前曾接受过ART治疗;58.1%(107/184)超过12个月。HIV病毒载量(VL)测试并不常见,但一半的VL结果很高。39%(77/200)的患者有记录的CD4计数结果。在入院时未接受抗结核治疗(ATT)的172名患者中,105(61%)要求进行TB诊断测试(痰XpertMTB/RIFMTB/RIF或尿液TB-LAM),105人中有60人(57%)。结核病实验室结果为阳性的14名患者中有9名(64%)在结果可用之前死亡。隐球菌病的检测主要在有脑膜炎症状的患者中进行。尿液TB-LAM检测很少进行。
    在赞比亚的一家转诊医院,由于实验室挑战,CD4测试不一致,这降低了对AHD的认识和AHD指南的实施。HIV计划可以通过加强住院活动来降低死亡率,并确定具有保留和依从性问题的PLHIV。包括反射VL测试,住院期间TB-LAM和血清CrAg。
    Zambia recently achieved UNAIDS 90-90-90 treatment targets for HIV epidemic control; however, inpatient facilities continue to face a large burden of patients with advanced HIV disease and HIV-related mortality. Management of advanced HIV disease, following guidelines from outpatient settings, may be more difficult within complex inpatient settings. We evaluated adherence to HIV guidelines during hospitalization, including opportunistic infection (OI) screening, treatment, and prophylaxis.
    We reviewed inpatient medical records of people living with HIV (PLHIV) admitted to the University Teaching Hospital in Lusaka, Zambia between December 1, 2018 and April 30, 2019. We collected data on patient demographics, antiretroviral therapy (ART), HIV biomarkers, and OI screening and treatment-including tuberculosis (TB), Cryptococcus, and OI prophylaxis with co-trimoxazole (CTX). Screening and treatment cascades were constructed based on the 2017 WHO Advanced HIV Guidelines.
    We reviewed files from 200 charts of patients with advanced HIV disease; of these 92% (184/200) had been on ART previously; 58.1% (107/184) for more than 12 months. HIV viral load (VL) testing was uncommon but half of VL results were high. 39% (77/200) of patients had a documented CD4 count result. Of the 172 patients not on anti-TB treatment (ATT) on admission, TB diagnostic tests (either sputum Xpert MTB/RIF MTB/RIF or urine TB-LAM) were requested for 105 (61%) and resulted for 60 of the 105 (57%). Nine of the 14 patients (64%) with a positive lab result for TB died before results were available. Testing for Cryptococcosis was performed predominantly in patients with symptoms of meningitis. Urine TB-LAM testing was rarely performed.
    At a referral hospital in Zambia, CD4 testing was inconsistent due to laboratory challenges and this reduced recognition of AHD and implementation of AHD guidelines. HIV programs can potentially reduce mortality and identify PLHIV with retention and adherence issues through strengthening inpatient activities, including reflex VL testing, TB-LAM and serum CrAg during hospitalization.
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  • 文章类型: Clinical Trial Protocol
    BACKGROUND: There is poor viral load monitoring (VLM) and inadequate management of virological failure in HIV-positive individuals on antiretroviral therapy in rural KwaZulu-Natal, South Africa. This could be contributing to increasing HIV drug resistance in the setting. This study aims to investigate the clinical and process impediments in VLM within the health system and to evaluate a quality improvement package (QIP) to address the identified gaps. The QIP comprises (i) a designated viral load champion responsible for administrative management and triaging of viral load results (ii) technological enhancement of the routine clinic-based Three Interlinked Electronic Register (TIER.Net) to facilitate daily automatic import of viral load results from the National Health Service Laboratory to TIER.Net (iii) development of a dashboard system to support VLM.
    METHODS: The study will evaluate the effectiveness of the QIP compared to current care for improving VLM and virological suppression using an effectiveness implementation hybrid type 3 design. This will use a cluster-randomised design with the primary healthcare clinics as the unit of randomisation with ten clinics randomised in a 1:1 ratio to either the intervention or control arm. We will enrol 150 HIV-positive individuals who had been on ART for ≥ 12 months from each of the ten clinics (750 in 5 intervention clinics vs. 750 in 5 control clinics) and follow them up for a period of 12 months. The primary outcome is the proportion of all patients who have a viral load (VL) measurement and are virally suppressed (composite outcome) after 12 months of follow up. Secondary outcomes during follow up include proportion of all patients with at least one documented VL in TIER.Net, proportion with VL ≥ 50 copies/mL, proportion with VL ≥ 1000 copies/mL (virological failure) and subsequent switch to second-line ART.
    CONCLUSIONS: We aim to provide evidence that a staff-centred quality improvement package, designated viral load monitoring champion, and augmentation of TIER.Net with a dashboard system will improve viral load monitoring and lead to improved virological suppression.
    BACKGROUND: This trial is registered on ClinicalTrials.gov on 8 Oct 2021. Identifier: NCT05071573; https://clinicaltrials.gov/ct2/show/NCT05071573?term=NCT05071573&draw=2&rank=1.
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