在初级保健层面实施艾滋病毒感染的早期婴儿诊断:马拉维的经验和挑战。

Implementing early infant diagnosis of HIV infection at the primary care level: experiences and challenges in Malawi.

机构信息

Malawi-Liverpool-Wellcome Trust Clinical Research Programme, Queen Elizabeth Central Hospital, Blantyre, Malawi.

出版信息

Bull World Health Organ. 2012 Sep 1;90(9):699-704. doi: 10.2471/BLT.11.100776. Epub 2012 Jun 18.

Abstract

PROBLEM

Malawi's national guidelines recommend that infants exposed to the human immunodeficiency virus (HIV) be tested at 6 weeks of age. Rollout of services for early infant diagnosis has been limited and has resulted in the initiation of antiretroviral therapy (ART) in very few infants.

APPROACH

An early infant diagnosis programme was launched. It included education of pregnant women on infant testing, community sensitization, free infant testing at 6 weeks of age, active tracing of HIV-positive infants and referral for treatment and care.

LOCAL SETTING

The programme was established in two primary care facilities in Blantyre, Malawi.

RELEVANT CHANGES

Of 1214 HIV-exposed infants, 71.6% presented for early diagnosis, and 14.5% of those who presented tested positive for HIV. Further testing of 103 of these 126 apparently HIV-positive infants confirmed infection in 88; the other 15 results were false positives. The initial polymerase chain reaction testing of dried blood spots had a positive predictive value (PPV) of 85.4%. Despite active tracing, only 87.3% (110/126) of the mothers of infants who initially tested positive were told their infants' test results. ART was initiated in 58% of the infants with confirmed HIV infection.

LESSONS LEARNT

Early infant diagnosis of HIV infection at the primary care level in a resource-poor setting is challenging. Many children in the HIV diagnosis and treatment programme were lost to follow-up at various stages. Diagnostic tools with higher PPV and point-of-care capacity and better infrastructures for administering ART are needed to improve the management of HIV-exposed and HIV-infected infants.

摘要

问题

马拉维的国家指南建议,感染艾滋病毒(HIV)的婴儿应在 6 周龄时进行检测。但早期婴儿诊断服务的推出受到限制,导致只有极少数婴儿开始接受抗逆转录病毒治疗(ART)。

方法

推出了早期婴儿诊断方案。该方案包括对孕妇进行婴儿检测教育、社区宣传、6 周龄时免费婴儿检测、积极追踪 HIV 阳性婴儿并转介治疗和护理。

当地情况

该方案在马拉维布兰太尔的两个初级保健机构设立。

相关变化

在 1214 名 HIV 暴露婴儿中,71.6%接受了早期诊断,其中 14.5%的婴儿 HIV 检测呈阳性。对这 126 名似乎 HIV 阳性婴儿中的 103 名进行了进一步检测,确认 88 名婴儿感染了 HIV;其余 15 名结果为假阳性。对干血斑的初始聚合酶链反应检测的阳性预测值(PPV)为 85.4%。尽管积极追踪,但只有 87.3%(110/126)最初检测呈阳性的婴儿的母亲被告知其婴儿的检测结果。在确认感染 HIV 的婴儿中,有 58%开始接受 ART。

经验教训

在资源匮乏的环境下,在初级保健层面进行 HIV 感染的早期婴儿诊断具有挑战性。许多儿童在 HIV 诊断和治疗方案的各个阶段都失去了随访。需要具有更高 PPV 和即时检测能力以及更好的 ART 管理基础设施的诊断工具,以改善 HIV 暴露和 HIV 感染婴儿的管理。

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