Intrapartum use of zidovudine in a large cohort of pregnant women living with HIV in Italy

Copyright © 2022. Published by Elsevier Ltd..

BACKGROUND: Intravenous administration of zidovudine (ZDV) during labour is a key step for vertical HIV transmission (VT) prevention, but there is no evidence of benefit when maternal HIV-RNA at delivery is <50 copies/mL. The aim of this study is evaluating the appropriateness of intrapartum ZDV use in Italy.

METHODS: Observational study including mother-infant pairs with perinatal HIV exposure during 2002-2019, enrolled in the Italian Register for HIV Infection in Children. Univariable and multivariable logistic regression were used to evaluate factors associated with VT.

RESULTS: A total of 3,861 infants, born from 3,791 pregnancies were included. The frequency of ZDV use was 79.9%, 92.1%, 93.7% and 92.8% when HIV-RNA was not available, ≥400 copies, between 50 and 399 copies, and <50 copies/mL. Thirty-three out of 3861 (0.85%) infants were subsequently diagnosed with HIV, 25/3861 (0.6%) of them born to mothers receiving intrapartum ZDV, and 31 (93.9%) to mothers with HIV-RNA ≥50 copies/mL or not available. In women with HIV-RNA < 50 copies/mL, ART discontinuation during pregnancy was the strongest risk factor for VT (odds ratio, OR, 23.1, 95%CI 2.4-219.3), while a higher gestational age (OR 0.6, 95%CI 0.4-0.8) and PEP administration to the newborn (aOR 0.004, 95%CI <0.0001-0.4) were protective factors. Intrapartum ZDV administration did not influence the final outcome in this group.

CONCLUSIONS: In ART era, more transmission events may occur in utero, limiting value of intrapartum ZDV, particularly for women with suppressed HIV-RNA load. More attention to the HIV-RNA testing of mothers before delivery may avoid unnecessary ZDV use.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:85

Enthalten in:

The Journal of infection - 85(2022), 5 vom: 01. Nov., Seite 565-572

Sprache:

Englisch

Beteiligte Personen:

Taramasso, Lucia [VerfasserIn]
Bovis, Francesca [VerfasserIn]
Di Biagio, Antonio [VerfasserIn]
Mignone, Federica [VerfasserIn]
Giaquinto, Carlo [VerfasserIn]
Tagliabue, Claudia [VerfasserIn]
Giacomet, Vania [VerfasserIn]
Genovese, Orazio [VerfasserIn]
Chiappini, Elena [VerfasserIn]
Salomè, Serena [VerfasserIn]
Badolato, Raffaele [VerfasserIn]
Carloni, Ines [VerfasserIn]
Cellini, Monica [VerfasserIn]
Dodi, Icilio [VerfasserIn]
Bossi, Grazia [VerfasserIn]
Allodi, Alessandra [VerfasserIn]
Bernardi, Stefania [VerfasserIn]
Consolini, Rita [VerfasserIn]
Dedoni, Maurizio [VerfasserIn]
Banderali, Giuseppe [VerfasserIn]
Mazza, Antonio [VerfasserIn]
Pruccoli, Giulia [VerfasserIn]
Rampon, Osvalda [VerfasserIn]
Erba, Paola [VerfasserIn]
Di Pietro, Giada [VerfasserIn]
Montagnani, Carlotta [VerfasserIn]
Capasso, Letizia [VerfasserIn]
Dotta, Laura [VerfasserIn]
Zallocco, Federica [VerfasserIn]
De Martino, Maurizio [VerfasserIn]
Lisi, Catiuscia [VerfasserIn]
Tovo, Pier Angelo [VerfasserIn]
Bassetti, Matteo [VerfasserIn]
Gabiano, Clara [VerfasserIn]
Galli, Luisa [VerfasserIn]
Italian Register for HIV Infection in Children [VerfasserIn]

Links:

Volltext

Themen:

4B9XT59T7S
Anti-HIV Agents
HIV
Journal Article
Observational Study
Peripartum
Research Support, Non-U.S. Gov't
U=U
Vertical transmission
Zidovudine

Anmerkungen:

Date Completed 18.10.2022

Date Revised 05.12.2022

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.jinf.2022.08.009

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM345059298