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Detecting congenital malformations - Lessons learned from the Mpepu study, Botswana

Identifieur interne : 000643 ( Main/Exploration ); précédent : 000642; suivant : 000644

Detecting congenital malformations - Lessons learned from the Mpepu study, Botswana

Auteurs : Gbolahan Ajibola [Botswana] ; Rebecca Zash [Botswana, États-Unis] ; Roger L. Shapiro [Botswana, États-Unis] ; Oganne Batlang [Botswana] ; Kerapetse Botebele [Botswana] ; Kara Bennett [États-Unis] ; Florence Chilisa [Botswana] ; Erik Von Widenfelt [Botswana] ; Joseph Makhema [Botswana] ; Shahin Lockman [Botswana, États-Unis] ; Lewis B. Holmes [États-Unis] ; Kathleen M. Powis [Botswana, États-Unis]

Source :

RBID : PMC:5365099

Abstract

Introduction

A large and increasing number of HIV-infected women are conceiving on antiretroviral treatment (ART). While most antiretrovirals are considered safe in pregnancy, monitoring for rare pregnancy and infant adverse outcomes is warranted.

Methods

We conducted a retrospective secondary analysis nested within a clinical trial of infant cotrimoxazole vs. placebo prophylaxis in Botswana (the Mpepu Study). Infants were examined at birth, and at least every 3 months through 18 months of age. Abnormal physical findings and diagnostic testing revealing malformations were documented. Post hoc, a geneticist classified all reported malformations based on available documentation. Structural malformations with surgical, medical or cosmetic importance were classified as major malformations. We present a descriptive analysis of identified malformations.

Results

Between 2011 and 2014, 2,933 HIV-infected women who enrolled in the Mpepu study delivered 2,971 live-born infants. Study staff conducted 2,944 (99%) newborn exams. One thousand eighty-eight (38%) women were taking ART at conception; 1,147 (40%) started ART during pregnancy; 442 (15%) received zidovudine monotherapy; and 223 (7%) received no antiretroviral during pregnancy. Of 33 reported anomalies, 25 (76%) met congenital malformations criteria, 10 (30%) were classified as major malformations, 4 (40%) of which were identified after the birth exam.

Discussion

Our results highlight the importance of staff training on identification of congenital malformations, programmatic monitoring beyond the birth examination and the value of geneticist involvement in the malformations classification process in resource-limited settings. These elements will be important to fully define antiretroviral drug safety in pregnancy.

Significance

Surveillance systems for monitoring the safety of antiretroviral use during pregnancy among HIV-infected women in resource-limited setting are lacking. The World Health Organization’s published programmatic recommendations for such surveillance systems represents the gold standard. We employed data from a clinical trial in Botswana, a country with a generalized HIV epidemic and high antiretroviral uptake by HIV-infected women, to highlight practical opportunities to strengthen congenital malformation surveillance systems in these settings where over 1 million HIV infected pregnant women reside.

Trial registration

Clinical Trials.gov NCT01229761


Url:
DOI: 10.1371/journal.pone.0173800
PubMed: 28339500
PubMed Central: 5365099


Affiliations:


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<affiliation wicri:level="2">
<nlm:aff id="aff003">
<addr-line>Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America</addr-line>
</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, Massachusetts</wicri:regionArea>
<placeName>
<region type="state">Massachusetts</region>
</placeName>
</affiliation>
<affiliation wicri:level="2">
<nlm:aff id="aff007">
<addr-line>Department of Internal Medicine, Massachusetts General Hospital, Boston, Massachusetts, United States of America</addr-line>
</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>Department of Internal Medicine, Massachusetts General Hospital, Boston, Massachusetts</wicri:regionArea>
<placeName>
<region type="state">Massachusetts</region>
</placeName>
</affiliation>
<affiliation wicri:level="2">
<nlm:aff id="aff008">
<addr-line>Global Health, MassGeneral Hospital for Children, Boston, Massachusetts, United States of America</addr-line>
</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>Global Health, MassGeneral Hospital for Children, Boston, Massachusetts</wicri:regionArea>
<placeName>
<region type="state">Massachusetts</region>
</placeName>
</affiliation>
</author>
</analytic>
<series>
<title level="j">PLoS ONE</title>
<idno type="eISSN">1932-6203</idno>
<imprint>
<date when="2017">2017</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
</fileDesc>
<profileDesc>
<textClass></textClass>
</profileDesc>
</teiHeader>
<front>
<div type="abstract" xml:lang="en">
<sec id="sec001">
<title>Introduction</title>
<p>A large and increasing number of HIV-infected women are conceiving on antiretroviral treatment (ART). While most antiretrovirals are considered safe in pregnancy, monitoring for rare pregnancy and infant adverse outcomes is warranted.</p>
</sec>
<sec id="sec002">
<title>Methods</title>
<p>We conducted a retrospective secondary analysis nested within a clinical trial of infant cotrimoxazole vs. placebo prophylaxis in Botswana (the Mpepu Study). Infants were examined at birth, and at least every 3 months through 18 months of age. Abnormal physical findings and diagnostic testing revealing malformations were documented. Post hoc, a geneticist classified all reported malformations based on available documentation. Structural malformations with surgical, medical or cosmetic importance were classified as major malformations. We present a descriptive analysis of identified malformations.</p>
</sec>
<sec id="sec003">
<title>Results</title>
<p>Between 2011 and 2014, 2,933 HIV-infected women who enrolled in the Mpepu study delivered 2,971 live-born infants. Study staff conducted 2,944 (99%) newborn exams. One thousand eighty-eight (38%) women were taking ART at conception; 1,147 (40%) started ART during pregnancy; 442 (15%) received zidovudine monotherapy; and 223 (7%) received no antiretroviral during pregnancy. Of 33 reported anomalies, 25 (76%) met congenital malformations criteria, 10 (30%) were classified as major malformations, 4 (40%) of which were identified after the birth exam.</p>
</sec>
<sec id="sec004">
<title>Discussion</title>
<p>Our results highlight the importance of staff training on identification of congenital malformations, programmatic monitoring beyond the birth examination and the value of geneticist involvement in the malformations classification process in resource-limited settings. These elements will be important to fully define antiretroviral drug safety in pregnancy.</p>
</sec>
<sec id="sec005">
<title>Significance</title>
<p>Surveillance systems for monitoring the safety of antiretroviral use during pregnancy among HIV-infected women in resource-limited setting are lacking. The World Health Organization’s published programmatic recommendations for such surveillance systems represents the gold standard. We employed data from a clinical trial in Botswana, a country with a generalized HIV epidemic and high antiretroviral uptake by HIV-infected women, to highlight practical opportunities to strengthen congenital malformation surveillance systems in these settings where over 1 million HIV infected pregnant women reside.</p>
</sec>
<sec id="sec006">
<title>Trial registration</title>
<p>Clinical Trials.gov
<ext-link ext-link-type="uri" xlink:href="https://clinicaltrials.gov/ct2/show/NCT01229761">NCT01229761</ext-link>
</p>
</sec>
</div>
</front>
<back>
<div1 type="bibliography">
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</div1>
</back>
</TEI>
<affiliations>
<list>
<country>
<li>Botswana</li>
<li>États-Unis</li>
</country>
<region>
<li>Massachusetts</li>
<li>État de New York</li>
</region>
</list>
<tree>
<country name="Botswana">
<noRegion>
<name sortKey="Ajibola, Gbolahan" sort="Ajibola, Gbolahan" uniqKey="Ajibola G" first="Gbolahan" last="Ajibola">Gbolahan Ajibola</name>
</noRegion>
<name sortKey="Batlang, Oganne" sort="Batlang, Oganne" uniqKey="Batlang O" first="Oganne" last="Batlang">Oganne Batlang</name>
<name sortKey="Botebele, Kerapetse" sort="Botebele, Kerapetse" uniqKey="Botebele K" first="Kerapetse" last="Botebele">Kerapetse Botebele</name>
<name sortKey="Chilisa, Florence" sort="Chilisa, Florence" uniqKey="Chilisa F" first="Florence" last="Chilisa">Florence Chilisa</name>
<name sortKey="Lockman, Shahin" sort="Lockman, Shahin" uniqKey="Lockman S" first="Shahin" last="Lockman">Shahin Lockman</name>
<name sortKey="Makhema, Joseph" sort="Makhema, Joseph" uniqKey="Makhema J" first="Joseph" last="Makhema">Joseph Makhema</name>
<name sortKey="Powis, Kathleen M" sort="Powis, Kathleen M" uniqKey="Powis K" first="Kathleen M" last="Powis">Kathleen M. Powis</name>
<name sortKey="Shapiro, Roger L" sort="Shapiro, Roger L" uniqKey="Shapiro R" first="Roger L." last="Shapiro">Roger L. Shapiro</name>
<name sortKey="Von Widenfelt, Erik" sort="Von Widenfelt, Erik" uniqKey="Von Widenfelt E" first="Erik" last="Von Widenfelt">Erik Von Widenfelt</name>
<name sortKey="Zash, Rebecca" sort="Zash, Rebecca" uniqKey="Zash R" first="Rebecca" last="Zash">Rebecca Zash</name>
</country>
<country name="États-Unis">
<region name="Massachusetts">
<name sortKey="Zash, Rebecca" sort="Zash, Rebecca" uniqKey="Zash R" first="Rebecca" last="Zash">Rebecca Zash</name>
</region>
<name sortKey="Bennett, Kara" sort="Bennett, Kara" uniqKey="Bennett K" first="Kara" last="Bennett">Kara Bennett</name>
<name sortKey="Holmes, Lewis B" sort="Holmes, Lewis B" uniqKey="Holmes L" first="Lewis B." last="Holmes">Lewis B. Holmes</name>
<name sortKey="Lockman, Shahin" sort="Lockman, Shahin" uniqKey="Lockman S" first="Shahin" last="Lockman">Shahin Lockman</name>
<name sortKey="Lockman, Shahin" sort="Lockman, Shahin" uniqKey="Lockman S" first="Shahin" last="Lockman">Shahin Lockman</name>
<name sortKey="Powis, Kathleen M" sort="Powis, Kathleen M" uniqKey="Powis K" first="Kathleen M" last="Powis">Kathleen M. Powis</name>
<name sortKey="Powis, Kathleen M" sort="Powis, Kathleen M" uniqKey="Powis K" first="Kathleen M" last="Powis">Kathleen M. Powis</name>
<name sortKey="Powis, Kathleen M" sort="Powis, Kathleen M" uniqKey="Powis K" first="Kathleen M" last="Powis">Kathleen M. Powis</name>
<name sortKey="Shapiro, Roger L" sort="Shapiro, Roger L" uniqKey="Shapiro R" first="Roger L." last="Shapiro">Roger L. Shapiro</name>
<name sortKey="Zash, Rebecca" sort="Zash, Rebecca" uniqKey="Zash R" first="Rebecca" last="Zash">Rebecca Zash</name>
</country>
</tree>
</affiliations>
</record>

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