Full Text Journal Articles by
Author Gregory Petro

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Maternal characteristics and pregnancy outcomes of hospitalized pregnant women with SARS-CoV-2 infection in South Africa: An International Network of Obstetric Survey Systems-based cohort study.

Samantha Budhram, Valerie Vannevel, Tanita Botha, Lawrence Chauke, Shastra Bhoora, Gaynor M Balie, Natalie Odell, Hennie Lombaard, Amy Wise, Chrysanthi Georgiou, Nondumiso Ngxola, Emma Wynne, Unati Mbewu, Mfundo Mabenge, Sibusiso Phinzi, Nontsikelelo Gubu-Ntaba, Gareth Goldman, Kay Tunkyi, Sudhir Prithipal, Keshree Naidoo, Santhi Venkatachalam, Terence Moodley, Sean Mould, Mzuvele Hlabisa, Logie Govender, Charlene Maistry, John P Habineza, Priya Israel, Serantha Foolchand, Nomandla V Tsibiyane, Mala Panday, Priya Soma-Pillay, Sumaiya Adam, Felicia Molokoane, Matthew S Mojela, Elizabeth J van Rensburg, Tshililo Mashamba, Mushi Matjila, Sue Fawcus, Ayesha Osman, Mareli Venter, Gregory Petro, Ahminah Fakier, Eduard Langenegger, Catherine A Cluver, Adrie Bekker, Liesl de Waard, Chantal Stewart, Nnabuike C Ngene, Ongombe Lunda, Sylvia N Cebekhulu, Siva Moodley, Mama-Asu Koranteng-Peprah, Emmanuel M C Ati, Salome Maswime, Laura M Yates,

<h4>Objective</h4>To describe risk factors and outcomes of pregnant women infected with SARS-CoV-2 admitted to South African healthcare facilities.<h4>Methods</h4>A population-based cohort study was conducted utilizing an amended International Obstetric Surveillance System protocol. Data on pregnant women with SARS-CoV-2 infection, hospitalized between April 14, 2020, and November 24, 2020, were analyzed.<h4>Results</h4>A total ... Read more >>

Int J Gynaecol Obstet (International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics)
[2021, :]

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Association between food intake and obesity in pregnant women living with and without HIV in Cape Town, South Africa: a prospective cohort study.

Hlengiwe P Madlala, Nelia P Steyn, Emma Kalk, Mary-Anne Davies, Dorothy Nyemba, Thokozile R Malaba, Ushma Mehta, Gregory Petro, Andrew Boulle, Landon Myer,

<h4>Background</h4>Although global nutrition/dietary transition resulting from industrialisation and urbanisation has been identified as a major contributor to widespread trends of obesity, there is limited data in pregnant women, including those living with HIV in South Africa. We examined food-based dietary intake in pregnant women with and without HIV at first ... Read more >>

BMC Public Health (BMC public health)
[2021, 21(1):1504]

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Immediate versus delayed insertion of the copper intrauterine device after medical abortion at 17-20 gestational weeks: a randomised controlled trial.

Deborah Constant, Margit Endler, Daniel Grossman, Gregory Petro, Malika Patel,

<h4>Introduction</h4>This trial reports on use of the copper intrauterine device (IUD) after immediate compared with delayed insertion following medical abortion at 17-20 gestational weeks (GW).<h4>Methods</h4>This randomised controlled trial was conducted at one tertiary hospital and five community healthcare centres in Cape Town, South Africa. Eligible consenting women were randomised to ... Read more >>

BMJ Sex Reprod Health (BMJ sexual & reproductive health)
[2021, :]

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High blood pressure at entry into antenatal care and birth outcomes among a cohort of HIV-uninfected women and women living with HIV initiating antiretroviral therapy in South Africa.

Angela M Bengtson, Tamsin K Phillips, Stanzi M le Roux, Kirsty Brittain, Allison Zerbe, Hlengiwe P Madlala, Thokozile R Malaba, Gregory Petro, Elaine J Abrams, Landon Myer,

<h4>Objective</h4>To examine associations between high blood pressure (BP) when entering antenatal care (ANC) and birth outcomes in a cohort of pregnant HIV- and women living with HIV (WLHIV) initiating antiretroviral treatment (ART).<h4>Study design</h4>Prospective cohort study.<h4>Main outcome measures</h4>Cesarean delivery, preterm birth (<37 weeks' gestation), low birthweight (LBW, <2500 g), small-for-gestational age (SGA, <10th ... Read more >>

Pregnancy Hypertens (Pregnancy hypertension)
[2021, 23:79-86]

Cited: 1 time

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Safety and continued use of the levonorgestrel intrauterine system as compared with the copper intrauterine device among women living with HIV in South Africa: A randomized controlled trial.

Catherine S Todd, Heidi E Jones, Nontokozo Langwenya, Donald R Hoover, Pai-Lien Chen, Gregory Petro, Landon Myer,

BACKGROUND:Women living with HIV (WLHIV) have lower rates of contraceptive use than noninfected peers, yet concerns regarding contraceptive efficacy and interaction with antiretroviral therapy (ART) complicate counseling. Hormonal contraceptives may increase genital tract HIV viral load (gVL) and sexual transmission risk to male partners. We compared gVL, plasma VL (pVL), ... Read more >>

PLoS Med (PLoS medicine)
[2020, 17(5):e1003110]

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Does HIV infection modify the relationship between pre-pregnancy body mass index and adverse birth outcomes?

Angela M Bengtson, Tamsin K Phillips, Stanzi M le Roux, Kirsty Brittain, Allison Zerbe, Hlengiwe Madlala, Thokozile Malaba, Gregory Petro, Elaine J Abrams, Landon Myer,

<h4>Background</h4>South Africa faces dual epidemics of HIV and obesity; however, little research has explored whether HIV status influences associations between pre-pregnancy body mass index (BMI) and adverse birth outcomes.<h4>Objectives</h4>To examine associations between pre-pregnancy body mass index (BMI) and adverse birth outcomes, and if they differ by HIV status.<h4>Methods</h4>We followed HIV-uninfected ... Read more >>

Paediatr Perinat Epidemiol (Paediatric and perinatal epidemiology)
[2020, 34(6):713-723]

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Difficult etonogestrel implant removals in South Africa: A review of 74 referred cases.

Gregory Petro, Trevi Spence, Malika Patel, Alida M Gertz, Chelsea Morroni,

<h4>Objectives</h4>To assess etonogestrel contraceptive implant location and outcomes among women referred for "difficult" removal to a specialist clinic in South Africa.<h4>Study design</h4>We performed a retrospective review of cases referred to our clinic for removal of nonpalpable, deep, migrated, or damaged implants, or failed removals from March to August 2017.<h4>Results</h4>Most (n = 68, ... Read more >>

Contraception (Contraception)
[2020, 102(2):129-132]

Cited: 1 time

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Closing the Gap: Ensuring Access to and Quality of Contraceptive Implant Removal Services is Essential to Rights-based Contraceptive Care.

Rebecca Howett, Alida M Gertz, Tiroyaone Kgaswanyane, Gregory Petro, Lesego Mokganya, Sifelani Malima, Tshego Maotwe, Melanie Pleaner, Chelsea Morroni,

The use of the subdermal contraceptive implant is increasing globally, and particularly so in lower- and middle-income countries in sub-Saharan Africa. For initiation or discontinuation of the implant, users need to have access to services for insertion and removal by healthcare providers. Providing access to safe and effective contraceptive implant ... Read more >>

Afr J Reprod Health (African journal of reproductive health)
[2019, 23(4):19-26]

Cited: 2 times

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Case Report: Traumatic Incomplete Fracture of an Implanon NXT® Contraceptive Implant.

Rebecca Howett, Alida M Gertz, Tiroyaone Kgaswanyane, Gregory Petro, Chelsea Morroni,

The etonogestrel (ENG) subdermal contraceptive implant (Implanon NXT®) is a safe and highly effective method of contraception which is increasing in popularity globally. This case report describes a 26-year-old woman who requested removal of the Implanon NXT® contraceptive implant. She reported that her implant had bent following direct trauma. The ... Read more >>

Afr J Reprod Health (African journal of reproductive health)
[2019, 23(4):124-128]

Cited: 0 times

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A systematic review of contraceptive continuation among women living with HIV.

Catherine S Todd, Tracy C Anderman, Sarah Long, Landon Myer, Linda-Gail Bekker, Gregory A Petro, Heidi E Jones,

BACKGROUND:Women living with HIV (WLHIV) experience high rates of unmet contraceptive need and unintended pregnancy. Contraceptive method-specific continuation rates and associated factors are critical for guiding providers tasked with both reproductive health (RH) and HIV care. We conducted this systematic review to determine whether contraceptive continuation rates differ between WLHIV ... Read more >>

Contraception (Contraception)
[2018, 98(1):8-24]

Cited: 1 time

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Mid-upper arm circumference: A surrogate for body mass index in pregnant women.

Ahminah Fakier, Gregory Petro, S Fawcus,

<h4>Background</h4>Nutrition in pregnancy has implications for both mother and fetus, hence the importance of an accurate assessment at the booking visit during antenatal care. The body mass index (BMI, kg/m2) is currently the gold standard for measuring body fatness. However, pregnancy-associated weight gain and oedema, as well as late booking ... Read more >>

S Afr Med J (South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde)
[2017, 107(7):606-610]

Cited: 20 times

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Clinical Outcomes and Women's Experiences before and after the Introduction of Mifepristone into Second-Trimester Medical Abortion Services in South Africa.

Deborah Constant, Jane Harries, Thokozile Malaba, Landon Myer, Malika Patel, Gregory Petro, Daniel Grossman,

<h4>Objective</h4>To document clinical outcomes and women's experiences following the introduction of mifepristone into South African public sector second-trimester medical abortion services, and compare with historic cohorts receiving misoprostol-only.<h4>Methods</h4>Repeated cross-sectional observational studies documented service delivery and experiences of women undergoing second-trimester medical abortion in public sector hospitals in the Western Cape, ... Read more >>

PLoS One (PloS one)
[2016, 11(9):e0161843]

Cited: 4 times

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Plasma viraemia in HIV-positive pregnant women entering antenatal care in South Africa.

Landon Myer, Tamsin K Phillips, Nei-Yuan Hsiao, Allison Zerbe, Gregory Petro, Linda-Gail Bekker, James A McIntyre, Elaine J Abrams,

<h4>Introduction</h4>Plasma HIV viral load (VL) is the principle determinant of mother-to-child HIV transmission (MTCT), yet there are few data on VL in populations of pregnant women in sub-Saharan Africa. We examined the distribution and determinants of VL in HIV-positive women seeking antenatal care (ANC) in Cape Town, South Africa.<h4>Methods</h4>Consecutive HIV-positive ... Read more >>

J Int AIDS Soc (Journal of the International AIDS Society)
[2015, 18:20045]

Cited: 16 times

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