(Press-News.org) CHICAGO -- Non-targeted HIV rapid test screening among emergency department patients in metropolitan Paris resulted in identifying only a few new HIV diagnoses, often at late stages and mostly among patients who are in a high-risk group, according to a study published Online First by the Archives of Internal Medicine.
"During the last 15 years, human immunodeficiency virus (HIV) screening combined with early treatment has effectively reduced HIV-related mortality, and some authors have postulated that this strategy plays a key role in controlling the epidemic," the authors write as background information in the article. Late diagnoses remains common even though there is free HIV testing in France. "To lower the number of undiagnosed infections and to improve early detection, nontargeted HIV rapid test (RT) screening in health care settings has been promoted by national health agencies in the United States, the United Kingdom, and, more recently, France." They add, "In France, because an estimated 25 percent of inhabitants (14 million) visit an ED [emergency department] annually, EDs appear to be an ideal setting to assess nontargeted HIV-RT screening of the general population.
Kayigan Wilson d'Almeida, M.D., and colleagues from the Emergency Department HIV-Screening Group in France, conducted an interventional study in 29 emergency departments from May 2009 through September 2010 that lasted for six consecutive weeks, which were randomly assigned. During that time at the participating emergency departments, 18- to 64-year-old patients who were able to provide consent for HIV testing were offered a fingerstick whole-blood HIV RT. "Main outcome measures were the number of patients tested for HIV and their characteristics vs those of the general metropolitan Paris population and the proportion of newly diagnosed HIV-positive patients among those tested and their characteristics vs those from the national HIV case surveillance."
"Among 138,691 visits, there were 78,411 eligible patients, 20,962 of whom (27 percent) were offered HIV RT; 13,229 (63.1 percent) accepted testing and 12,754 (16.3 percent) were tested," the authors report. "The ED patients' characteristics reflected the general population distribution. Eighteen patients received new HIV diagnoses (0.14 percent)." The authors note that the average age of the patients with the newly diagnosed infection was 32.9 years. Of these patients, "12 (66.7 percent) reported previous HIV testing (median [midpoint] time since the last HIV test, one year), seven (39 percent) were men who reported having sex with men, and 10 (55 percent) were heterosexuals from sub-Saharan Africa."
"In conclusion, ED-based HIV RT screening is feasible and can reach large numbers of patients. However, unexpectedly, nontargeted screening identified only a few new diagnoses, often already at late stages, and most newly diagnosed patients belonged to a high-risk group and had been tested previously. Therefore, our observations do not support the implementation of nontargeted HIV screening of the general population in Eds."
(Arch Intern Med. Published online October 24, 2011. doi:10.1001/archinternmed.2011.535. Available pre-embargo to the media at www.jamamedia.org.)
Editor's Note: This study was funded by grants from ANRS (Agence Nationale de Recherche sur le Sida et les Hepatites Virales) and Sidaction, Paris, France. Rapid tests were provided free of charge from Orasure Technologies, Inc, Bethlehem, Pennsylvania. Please see the article for additional information, including other authors, author contributions and affiliations, financial disclosures, funding and support, etc.
Commentary: The Ongoing Need for Targeted Strategies
In an invited commentary accompanying the article, Jason S. Haukoos, M.D., M.Sc., from Denver Health Medical Center, Denver, Colo., writes: "Early identification of human immunodeficiency (HIV) infection remains a critical public health priority. In the United States, approximately 240,000 individuals remain undiagnosed and 56,000 new infections occur annually."
Dr. Haukoos notes that the "Centers for Disease Control and Prevention (CDC) has recommended 'routine' (nontargeted) opt-out HIV screening in healthcare settings, including emergency departments (EDs) because EDs are considered the most common site of missed opportunities for diagnosing HIV infection."
"Rigorous, large-scale, comparative effectiveness research is needed to understand how best to identify patients with undiagnosed HIV infection. In the end, the use of targeted HIV screening strategies may still help prioritize HIV testing and prevention resources where the epidemic is concentrated."
(Arch Intern Med. Published online October 24, 2011. doi: 10/1001/archinternmed.2011.538. Available pre-embargo to the media at www.jamamedia.org.)
Editor's Note: This work was supported in part by an Independent Scientist Award from the Agency for Healthcare Research and Quality.
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To contact Anne-Claude Cremieux, M.D., Ph.D., email anne-claude.cremieux@rpc.aphp.fr. To contact commentary author Jason S. Haukoos, M.D., M.Sc., call Kalena Wilkinson at 303-436-3622 or email kalena.wilkinson@dhha.org.
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