Profilaxis preexposición

Profilaxis 预曝光
  • 文章类型: Journal Article
    背景:有关于暴露前预防(PrEP)使用者中STI筛查频率的讨论。这项研究的目的是分析性传播感染的发生率并评估不同的筛查模型,以优化随访。
    方法:在2017年至2023年之间进行了一项前瞻性研究,其中包括在STI诊所的138名PrEP使用者。每三个月对参与者进行性传播感染测试。对于有性传播感染相关症状的人或性伴侣通知性传播感染的人,进行了计划外的访问。我们对重复事件进行了生存分析,估计累积发病率(CI)和发病率(IR)。
    结果:每季度筛查的总CI为6年中每人8.3(95%CI:7.6-9.1)感染,呈下降趋势。最常诊断的病原体是淋病奈瑟菌,IR为0.76(95%CI:0.68-0.84)。如果筛查频率减少到每六个月一次,性传播感染的IR降低了(95%CI:0.5-0.66)每年每位用户的感染,12个月时为0.82(95%CI:0.73-0.89)。在没有咽部或尿道检查的情况下,IR降低了每人每年0.37(95%CI:0.32-0.42)感染,而35岁以上的人则降低了0.33(95%CI:0.25-0.4)。消除计划外的访问,IR的降低为0.33(95%CI:0.24-0.42)。
    结论:PrEP使用者的性传播感染发生率很高,尤其是在直肠,但它不会随着时间的推移而增加。可以优化STI筛查,减少咽部和尿道检查的频率,尤其是35岁以上的人群。必须为计划外的访问重新分配卫生资源,这已被证明是最具成本效益的筛查。
    BACKGROUND: There is discussion about the frequency of STI screening among pre-exposure prophylaxis (PrEP) users. The aim of this study was to analyse the incidence of STIs and to evaluate different screening models in order to optimise the follow-up.
    METHODS: A prospective study was conducted between 2017 and 2023, including 138 PrEP users in a STI clinic. Participants were tested for STIs every three months. Unscheduled visits were performed for those with STI-related symptoms or for people who were notified for an STI by a sexual partner. We performed a survival analysis of repeated events, estimating the cumulative incidence (CI) and incidence rate (IR).
    RESULTS: The overall CI by quarterly screening was 8.3 (95% CI: 7.6-9.1) infections per person over six years, with a decreasing trend. The most frequently diagnosed pathogen was Neisseria gonorrhoeae, with a IR of 0.76 (95% CI: 0.68-0.84). If the frequency of screening is reduced to every six months, the IR of STIs is reduced by (95% CI: 0.5-0.66) infections per user per year, and at 12 months by 0.82 (95% CI: 0.73-0.89). In the case of no pharyngeal or urethral screening, IR is reduced by 0.37 (95% CI: 0.32-0.42) infections per person per year and in those over 35 years of age by 0.33 (95% CI: 0.25-0.4). Eliminating unscheduled visits, the reduction in IR is 0.33 (95% CI: 0.24-0.42).
    CONCLUSIONS: The incidence of STIs among PrEP users is high, especially in the rectum, but it does not increase over time. STI screening could be optimised reducing the frequency of pharyngeal and urethral testing, particularly in those over 35 years of age. It is essential to redistribute health resources for unscheduled visits, which have been shown to be the most cost-effective screening.
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  • 文章类型: Observational Study
    背景:应对HIV感染仍然是西班牙国家卫生系统的主要目标。紧急服务在减少错过的诊断机会方面发挥着至关重要的作用。据估计,三分之一的这样的机会发生在这里。这项研究的目的是研究新诊断的艾滋病毒病例的地理分布,在马德里市中心的一家医院里。
    方法:这是一个观察性的,描述性,描述性回顾性研究评估马德里社区三级大学医院护理区新诊断HIV的地理分布。
    结果:分析了2018年至2020年间有新诊断为HIV感染的三百八十七个人,大多数是年轻人,平均年龄为36±9岁。86%是同性恋,双性恋和其他与男性发生性关系的男性和48.6%是移民。15.3%的CD4<200个细胞/mm3,9.5%的人患有AIDS定义的疾病。32.7%和5.1%的RNA-HIV-1>100,000拷贝/mL和>500,000拷贝/mL,分别,高达13.7%的受试者在诊断时出现抗性突变。地理上,51.4%的人来自4个健康中心,超过70%的新诊断包括在9个健康中心。
    结论:更好地了解健康地区新诊断的艾滋病毒的地理分布,使我们能够确定传播风险较高的地区,从而指导和实施预防,早期诊断,和治疗措施。
    BACKGROUND: Countering HIV infection remains a primary objective of the Spanish National Health System. Emergency services play a crucial role in reducing missed diagnostic opportunities, with estimates suggesting that one in 3 such opportunities occur here. The aim of the study is to examine the geographical dispersion of newly diagnosed HIV cases, within a downtown Madrid hospital.
    METHODS: This is an observational, descriptive, retrospective study evaluating the geographical distribution of new HIV diagnoses in the care area of a tertiary University Hospital in the Community of Madrid.
    RESULTS: Three hundred and eighty-seven individuals with a new diagnosis of HIV infection between 2018 and 2020 were analysed, the majority being young people with an average age of 36±9 years. 86% were gay, bisexual and other men who have sex with men and 48.6% were immigrants. 15.3% presented with CD4+<200cells/mm3 and 9.5% with an AIDS-defining illness. 32.7% and 5.1% had an RNA-HIV-1>100,000copies/mL and >500,000copies/mL, respectively, with up to 13.7% of subjects presenting resistance mutations at diagnosis. Geographically, 51.4% of individuals came from 4 Health Centres and more than 70% of the new diagnoses were included in nine Health Centres.
    CONCLUSIONS: Better understanding the geographical distribution of new HIV diagnoses by health areas allows us to identify areas of higher transmission risk, thereby directing and implementing prevention, early diagnosis, and treatment measures.
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  • 文章类型: Journal Article
    目的:我们的目标是在西班牙公共资金批准后6个月,估计每日HIV暴露前预防(PrEP)使用的流行率,并在全国同性恋样本中确定相关因素,双性恋和其他与男性发生性关系的男性(GBMSM)。
    方法:我们分析了2020年5月至7月通过同性恋联系应用程序和网站在全国范围内发布的在线问卷招募的4692名HIV未诊断的GBMSM男性。我们使用每日PrEP估计参与者的比例,并使用具有稳健方差的泊松回归确定相关因素。
    结果:每天使用PrEP的患者占所有参与者的2.8%(95%CI2.3-3.3)。每日PrEP的使用与被招募到社区计划中独立相关,年龄超过30岁,生活在大城市,和男人一起生活,与10多个性伴侣进行无公寓肛交,使用性药物,尤其是化学药物,被诊断患有性传播感染。
    结论:在西班牙批准PrEP六个月后,在GBMSM男性的全国样本中,日常使用的患病率很低。有必要促进获取,对PrEP的需求和兴趣,尤其是在年轻的GBMSM男性中,那些生活在中小城市的人,以及那些隐藏与其他男人关系的人。
    We aim to estimate the prevalence of daily HIV pre-exposure prophylaxis (PrEP) use 6 months after public funding approval in Spain and identify associated factors in a national sample of gay, bisexual and other men who have sex with men (GBMSM).
    We analysed 4692 HIV-undiagnosed GBMSM men recruited via an online questionnaire distributed nationally via gay contact apps and websites between May and July 2020. We estimated the proportion of participants using daily PrEP and identified associated factors using Poisson regression with robust variance.
    Daily PrEP use was reported by 2.8% (95% CI 2.3-3.3) of all participants. Daily PrEP use was independently associated with being recruited into community programmes, being older than 30 years, living in a large city, living with men, having condomless anal intercourse with more than 10 sexual partners, using drugs for sex, especially chemsex drugs, and being diagnosed with a sexually transmitted infection.
    Six months after PrEP was approved in Spain, the prevalence of daily use is low in a national sample of GBMSM men. There is a need to promote access, demand and interest in PrEP, especially among young GBMSM men, those living in small and medium-sized cities, and those who hide their relationships with other men.
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  • 文章类型: Journal Article
    背景:暴露前预防(PrEP)是一种生物医学干预措施,用于预防血清阴性人群感染艾滋病毒的高风险感染。该战略于2019年10月得到西班牙卫生部的认可。
    目的:介绍在巴塞罗那医院ClínicHIV部门的PrEP初步经验,特别注意队列中脆弱性因素的分析。
    方法:回顾性,描述性研究。流行病学,社会人口统计学,并分析第一年计划中包含的用户的临床特征,特别注意感染,冒险的做法,和物质使用。
    结果:纳入190人,177名男性和12名跨性别女性,平均年龄为35岁(8SD)。70%受过高等教育,一半有西班牙国籍.平均每三个月有10对夫妇和60%的人报告无保护的肛交。31%的人至少有一次性传播感染的PCR阳性,淋病奈瑟菌是最普遍的微生物(51%),直肠样本受影响最大(21%)。63%的人报告使用化学药物,19%的多药物使用,和8%的“猛烈抨击”。一半的人表示担心消费和/或性行为,25%的人表示需要帮助。
    结论:在我们医院部门参加的PrEP用户简介证明了多学科团队的建立是合理的,使我们能够全面关注这些人的性生活。
    Pre-Exposure Prophylaxis (PrEP) is a biomedical intervention to prevent HIV infection in seronegative people at high risk of becoming infected. This strategy was endorsed in October 2019 by the Spanish Ministry of Health.
    To present the PrEP initial experience in the HIV Unit of the Hospital Clínic of Barcelona, paying special attention to the analysis of the vulnerability factors in the cohort.
    Retrospective, descriptive study. The epidemiological, sociodemographic, and clinical characteristics of the users included in the program during the first year are analyzed, paying particular attention to Infections, risky practices, and substance use.
    190 individuals were included, 177 men and 12 trans women with a mean age of 35 years (8 SD). 70% had higher education, and half had Spanish nationality. An average of 10 couples per trimester and 60% reported unprotected anal sex. 31% had at least one positive PCR for STIs, with N. gonorrhoeae being the most prevalent microorganism (51%) and the rectal sample the most affected (21%). 63% reported chemsex use, 19% polydrug use, and 8% \"slamming\". Half expressed concern about consumption and/or sexual practices and 25% the need for help.
    The PrEP user profile attended in our Hospital Unit justifies the creation of multidisciplinary teams that allow us to provide holistic attention to the sexual life of these people.
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  • 文章类型: Journal Article
    背景:暴露前预防(PrEP)是一种生物医学干预措施,用于预防血清阴性人群感染艾滋病毒的高风险感染。该战略于2019年10月得到西班牙卫生部的认可。
    目的:介绍在巴塞罗那医院ClínicHIV部门的PrEP初步经验,特别注意队列中脆弱性因素的分析。
    方法:回顾性,描述性研究。流行病学,社会人口统计学,并分析第一年计划中包含的用户的临床特征,特别注意感染,冒险的做法,和物质使用。
    结果:纳入190人,177名男性和12名跨性别女性,平均年龄为35岁(8SD)。70%受过高等教育,一半有西班牙国籍.平均每三个月有10对夫妇和60%的人报告无保护的肛交。31%的人至少有一次性传播感染的PCR阳性,淋病奈瑟菌是最普遍的微生物(51%),直肠样本受影响最大(21%)。63%的人报告使用化学药物,19%的多药物使用,和8%的“猛烈抨击”。一半的人表示担心消费和/或性行为,25%的人表示需要帮助。
    结论:在我们医院部门参加的PrEP用户简介证明了多学科团队的建立是合理的,使我们能够全面关注这些人的性生活。
    BACKGROUND: Pre-Exposure Prophylaxis (PrEP) is a biomedical intervention to prevent HIV infection in seronegative people at high risk of becoming infected. This strategy was endorsed in October 2019 by the Spanish Ministry of Health.
    OBJECTIVE: To present the PrEP initial experience in the HIV Unit of the Hospital Clínic of Barcelona, paying special attention to the analysis of the vulnerability factors in the cohort.
    METHODS: Retrospective, descriptive study. The epidemiological, sociodemographic, and clinical characteristics of the users included in the program during the first year are analyzed, paying particular attention to Infections, risky practices, and substance use.
    RESULTS: 190 individuals were included, 177 men and 12 trans women with a mean age of 35 years (8 SD). 70% had higher education, and half had Spanish nationality. An average of 10 couples per trimester and 60% reported unprotected anal sex. 31% had at least one positive PCR for STIs, with N. gonorrhoeae being the most prevalent microorganism (51%) and the rectal sample the most affected (21%). 63% reported chemsex use, 19% polydrug use, and 8% \"slamming\". Half expressed concern about consumption and/or sexual practices and 25% the need for help.
    CONCLUSIONS: The PrEP user profile attended in our Hospital Unit justifies the creation of multidisciplinary teams that allow us to provide holistic attention to the sexual life of these people.
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  • 文章类型: Journal Article
    HIV infection remains an important public health problem worldwide. The traditional preventive measures, such as sexual education, screening, and early antiretroviral treatment initiation, despite having shown their effectiveness, are not enough to control new infections. In this context, Pre-Exposure Prophylaxis (PrEP) has been investigated as a preventive measure. Currently, it has been extensively documented that the administration of antiretroviral treatment in an HIV exposed, but not infected population, could reduce the risk of transmission without significant drawbacks. Despite its high efficacy for HIV prevention, the use of PrEP remains a controversial measure, particularly its cost-effectiveness. For this reason, the access to PrEP is not available for all the HIV risk groups. Therefore, and based on the evidence found, the current approach must be the repercussions of not to implement PrEP, more than its cost or its effectiveness.
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  • 文章类型: Journal Article
    To implement HIV pre-exposure prophylaxis (PrEP) in Spain, several possible models fitting the Spanish National Health System must be considered. The experience of other countries with a similar background let us foresee their benefits and their defects before implementing them. Possible implementation models for prescription-follow-up-dispensing circuits may involve hospitals, STI clinics or primary care centres and community pharmacies. On the one hand, a hospital-based circuit is the least effective of them all and it may not satisfy the potential demand, even though it could be deployed immediately. On the other hand, accessibility would increase with PrEP prescription in Primary care and dispensing by community pharmacists. Involvement of community-based STI clinics and publicly-funded STI clinics would be the best option to attract the population not frequenting the general health system, and co-management with Primary Care teams would ensure nation-wide access to PrEP.
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  • 文章类型: Journal Article
    背景:暴露前预防(PrEP)包括向从事高风险行为的HIV血清阴性个体施用抗逆转录病毒药物,目的是降低感染的可能性。尽管它的安全性和有效性,PrEP在西班牙的公共医疗系统中仍然不可用。这项研究的目的是评估在其他预防措施中添加PrEP的预防影响。我们估计了最初血清阴性的变性女性和与男性发生性关系的男性中可以预防的HIV血清转化的数量(如果有PrEP的话)。
    方法:我们在马德里的一个参考HIV/性传播感染诊所对2014-2016年期间最近的HIV血清转化者进行了一项描述性研究。我们分析了被指示为PrEP的个体,根据2016年艾滋病研究小组的指南。使用Stata14进行了统计分析,以估计可以预防的HIV感染(如果有PrEP)。
    结果:我们估计,在228名男男性行为者和变性女性中,有195名,有记录的艾滋病毒血清转化,指示为PrEP。考虑到欧洲研究报告的预防功效,我们估计可以预防168例HIV血清转化,占诊断感染的73.7%。
    结论:结果证实有必要促进针对艾滋病毒的综合预防计划,将所有可能的措施结合起来,包括PrEP。
    BACKGROUND: Pre-exposure prophylaxis (PrEP) consists of administering antiretroviral drugs to HIV-seronegative individuals who engage in high-risk practices, with the aim of reducing the probability of acquiring the infection. Despite its safety and efficacy, PrEP is still not available within Spain\'s public healthcare system. The aim of this study was to estimate the preventive impact of adding PrEP to the other preventive measures. We estimated the number of HIV seroconversions that could have been prevented (if PrEP had been available) among initially seronegative transsexual women and men who have sex with men.
    METHODS: We conducted a descriptive study of recent HIV seroconverters between 2014-2016 in a reference HIV/sexually transmitted infection clinic in Madrid. We analysed the individuals who were indicated PrEP, according to the guidelines of the 2016 AIDS Study Group. The statistical analysis to estimate the HIV infections that could have been prevented (if PrEP had been available) was conducted using Stata 14.
    RESULTS: We estimated that 195 of the 228 men who have sex with men and transsexual women, with documented HIV seroconversion, were indicated for PrEP. Considering the preventive efficacy reported in European studies, we estimated that 168 HIV seroconversions could have been prevented, which represents 73.7% of the diagnosed infections.
    CONCLUSIONS: The results confirm the need to promote combined preventive programs against HIV that integrate all possible measures, including PrEP.
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  • 文章类型: Journal Article
    HIV infection is still not controlled in Spain. New HIV infection prevention strategies are required, especially in populations of higher incidence, by means of combined interventions. Early diagnosis and treatment of HIV-infected individuals is the most cost-effective strategy to control the epidemic, including interventions designed to motivate behavioural changes. These types of campaigns must not only be directed to the general population through mass channels, but also to key populations through more specific channels and messages. Biomedical interventions like pre-exposure prophylaxis, uses a combination of biomedical tools to reduce the risk of HIV acquisition, and are usually accompanied of behavioural interventions. The influence of structural factors, social justice and defending the rights of people living with HIV have a significant impact on prevention strategies. Structural interventions are designed to influence these factors that make some individuals or populations more vulnerable to HIV infection.
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  • 文章类型: Journal Article
    This study focuses on actions at the political and administrative level in Spain in relation to the implementation of pre-exposure prophylaxis (PrEP). We analysed a whole range of different formal initiatives taken by the political and administrative actors involved. The information was obtained from official public data sources. As of February 2018, PrEP had not been implemented. The decision is dependent on both state and regional governments. The Ministry of Health and some Autonomous Regions are working on different interventions, but without providing an implementation timetable. The political parties have kept a very low profile in terms of initiatives related to the implementation of PrEP. From a legal point of view, proceedings are passing back and forth with the extension of the patent. The role of intergovernmental and interdepartmental institutions is very important for the implementation of PrEP in Spain.
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