Obstetrics and Gynecology Commons^™

Tissue-Targeted Crispr-Cas9-Mediated Genome Editing Of Multiple Homeologs In F0 Generation Xenopus Laevis Embryos, Mark E Corkins, Bridget D Delay, Rachel K Miller

Faculty, Staff and Student Publications

Xenopus laevis frogs are a powerful developmental model that enables studies combining classical embryology and molecular manipulation. Because of the large embryo size, ease of microinjection, and ability to target tissues through established fate maps, X. laevis have become the predominant amphibian research model. Given that their allotetraploid genome has complicated the generation of gene knockouts, strategies need to be established for efficient mutagenesis of multiple homeologs to evaluate gene function. Here we describe a protocol to utilize CRISPR-Cas9-mediated genome editing to target either single alleles or multiple alloalleles in F0 X. laevis embryos. A single guide (sg) RNA is …

The Impact Of Response To Iron Therapy On Maternal And Neonatal Outcomes Among Pregnant Women With Anemia, Sarah E Detlefs, Michael D Jochum, Bahram Salmanian, Jennifer R Mckinney, Kjersti M Aagaard

Faculty, Staff and Students Publications

BACKGROUND: Anemia during pregnancy is associated with increased risks of preterm birth, preeclampsia, cesarean delivery, and maternal morbidity. The most prevalent modifiable cause of pregnancy-associated anemia is iron deficiency. However, it is still unclear whether iron therapy can reduce the risks of adverse outcomes in women with anemia.

OBJECTIVE: This study aimed to determine whether response to iron therapy among women with anemia is associated with a change in odds of adverse maternal and neonatal outcomes.

STUDY DESIGN: This was a population-based cohort study (2011-2019) using an institutional database composed of obstetrical patients from 2 delivery hospitals. Patients with adequate …

Clinical Opinion: The Diagnosis And Management Of Suspected Fetal Growth Restriction: An Evidence-Based Approach, Christoph C Lees, Roberto Romero, Tamara Stampalija, Andrea Dall'asta, Greggory A Devore, Federico Prefumo, Tiziana Frusca, Gerard H A Visser, John C Hobbins, Ahmet A Baschat, Caterina M Bilardo, Henry L Galan, Stuart Campbell, Dev Maulik, Francesc Figueras, Wesley Lee, Julia Unterscheider, Herbert Valensise, Fabricio Da Silva Costa, Laurent J Salomon, Liona C Poon, Enrico Ferrazzi, Giancarlo Mari, Giuseppe Rizzo, John C Kingdom, Torvid Kiserud, Kurt Hecher

Faculty, Staff and Students Publications

This study reviewed the literature about the diagnosis, antepartum surveillance, and time of delivery of fetuses suspected to be small for gestational age or growth restricted. Several guidelines have been issued by major professional organizations, including the International Society of Ultrasound in Obstetrics and Gynecology and the Society for Maternal-Fetal Medicine. The differences in recommendations, in particular about Doppler velocimetry of the ductus venosus and middle cerebral artery, have created confusion among clinicians, and this review has intended to clarify and highlight the available evidence that is pertinent to clinical management. A fetus who is small for gestational age is …

Characteristics And Birth Outcomes Of Pregnant Adolescents Compared To Older Women: An Analysis Of Individual Level Data From 140,000 Mothers From 20 Rcts, Nadia Akseer, Emily Catherine Keats, Pravheen Thurairajah, Simon Cousens, Ana Pilar Bétran, Brietta M. Oaks, David Osrin, Ellen Piwoz, Exnevia Gomo, Zulfiqar Ahmed Bhutta

Department of Paediatrics and Child Health

Background: Adolescence is a critical period of maturation when nutrient needs are high, especially among adolescents entering pregnancy. Using individual-level data from 140,000 participants, we examined socioeconomic, nutrition, and pregnancy and birth outcomes for adolescent mothers (10-19 years) compared to older mothers in low and middle-income countries.
Methods: This study was conducted between March 16, 2018 and May 25, 2021. Data were obtained from 20 randomised controlled trials of micronutrient supplementation in pregnancy. Stratified analyses were conducted by age (10-14 years, 15-17 years, 18-19 years, 20-29 years, 30-39 years, 40+ years) and geographical region (Africa, Asia). Crude and confounder-adjusted means, …

Subsequent Ultrasonographic Non-Visualization Of The Ovaries Is Hastened In Women With Only One Ovary Visualized Initially, Edward J. Pavlik, Hannah Fancher, Charles S. Dietrich, John R. Van Nagell Jr.

Obstetrics and Gynecology Faculty Publications

Because the effects of age, menopausal status, weight and body mass index (BMI) on ovarian detectability by transvaginal ultrasound (TVS) have not been established, we determined their contributions to TVS visualization of the ovaries when one or both ovaries are visualized on the first ultrasound exam. A total of 29,877 women that had both ovaries visualized on their first exam were followed over 202,639 prospective TVS exams and 9703 women that had only one ovary visualized on their first exam were followed over 63,702 ultrasonography exams. All images were reviewed by a physician. While non-visualization of both ovaries increased with …

Management Of Infective Endocarditis In Pregnancy By A Multidisciplinary Team: A Case Series, Kayle S. Shapero, Varidhi Nauriyal, Christina Megli, Kathryn Berlacher, Sami El-Dalati

Internal Medicine Faculty Publications

Introduction: The incidence of infective endocarditis (IE) in pregnancy is rare and has been increasing during the opioid epidemic. IE in pregnancy is associated with high rates of maternal and fetal morbidity and mortality. Multidisciplinary endocarditis teams for management of IE have been shown to reduce in-hospital and 1-year mortality. We present a single-center experience managing IE in pregnancy utilizing a multidisciplinary endocarditis team.

Methods: Patients diagnosed with IE while pregnant or within 30 days post-partum were identified. All patients discussed at the institution's weekly multidisciplinary endocarditis meeting were included. Demographic and clinical data and outcome-related variables were retrospectively reviewed …

Understanding The Needs Of A Mobile Phone-Based Telemonitoring Program For Pregnant Women At High Risk For Pre-Eclampsia: Interpretive Qualitative Description Study, Anam Shahil Feroz, Kristina De Vera, Nadia D. Bragagnolo, Sarah Saleem, Zulfiqar Ahmed Bhutta, Emily Seto

Community Health Sciences

Background: Lack of early risk detection, diagnosis, and treatment of pregnant women at high risk for pre-eclampsia can result in high maternal mortality and morbidity not only in Pakistan but also in other low- to middle-income countries (LMICs). A potential tool for supporting pregnant women at high risk for pre-eclampsia for early detection is telemonitoring (TM). However, there is a limited body of evidence on end-user needs and preferences to inform the design of the TM programs for pregnant women at high risk for pre-eclampsia, specifically in LMICs such as Pakistan.
Objective: This study aims to explore the needs of …

The Unspoken Grief Of Multiple Stillbirths In Rural Pakistan: An Interpretative Phenomenological Study, Muhammad Asim, Sehrish Karim, Hajra Khwaja, Waqas Hameed, Sarah Saleem

Community Health Sciences

Background: Pakistan has the highest rate of stillbirth (30.6 stillbirths per 1000 total births) as compared to other South Asian countries. The psychological impact of stillbirths on bereaved women is well documented; however, there is a dearth of literature on lived experiences of women with multiple stillbirths in Pakistan.
Objective: The purpose of this research is to understand the lived experiences of women who had multiple stillbirths in Thatta, Pakistan.
Methods: An interpretative phenomenological study was conducted in district Thatta with eight women who experienced more than one stillbirth. A semi-structured in-depth interview guide was used for data collection. The …

Developing A Sexual Health Consent Strategy For Refugees: A Qualitative Approach, Amita Tuteja, Elisha Riggs, Lena Sanci, Lester Mascarenhas, Anna Power, Di Vanvliet, Katrina Sangster, Kimberley Mcguinness, Meredith Temple-Smith

The Qualitative Report

We report the development of a strategy for obtaining a truly voluntary and informed consent for sexual and reproductive health (SRH) research with Burma-born refugees settled in Australia. Using a qualitative descriptive research design, we interviewed 29 providers of refugee services (PRS) including health care professionals (doctors, nurses, midwives), bilingual supporting staff (interpreters, social workers, settlement workers, community liaison officers) and administrative staff (practice managers, reception staff) who provide primary care services to refugees. Interviews were audio recorded, transcribed, and subjected to thematic analysis. Four themes emerged: (a) unique values of Burma-born people, (b) unfamiliarity with Western concepts of research, …

Knowledge, Attitude And Practices Of Pregnant Women Related To Covid-19 Infection: A Cross-Sectional Survey In Seven Countries From The Global Network For Women's And Children's Health, Farnaz Naqvi, Seemab Naqvi, Sk Masum Billah, Sarah Saleem, Elizabeth Fogleman, Nalini Peres Da-Silva, Lester Figueroa, Manolo Mazariegos, Ana L. Garces, Sana Yousaf

Community Health Sciences

Objective: We sought to understand knowledge, attitudes and practices (KAP) regarding COVID-19 in pregnant women in seven low and middle-income countries (LMIC).
Design: Population-based prospective, observational study.
Settings: Study sites in DRC, Kenya, Zambia, Bangladesh, India (two sites), Pakistan and Guatemala.
Population and sample: Pregnant women in the Global Network's Maternal and Neonatal Health Registry (MNHR).
Methods: A KAP questionnaire was administered in face-to-face interviews with pregnant women from September 2020 through October 2021 in the MNHR.
Main outcome measures: KAP regarding COVID-19 during pregnancy.
Results: In all, 25 260 women completed the survey. Overall, 56.8% of women named ≥3 …

Current Perspectives Of Oncoplastic Breast Surgery In Pakistan, Lubna Mushtaque Vohra, Dua Jabeen, Danish Ali, Syeda Sakina Abidi, Sana Zeeshan, Abida Khalil Sattar

Section of General Surgery

Oncoplastic breast surgery is based on the concept of tumour-specific immediate reconstruction. It combines both local and distant techniques to maintain breast texture, symmetry and cosmesis without compromising oncological outcome. The current narrative review was planned to highlight the current state and future of oncoplastic breast surgery in low- and middle-income countries where its utilisation in surgical practice remains insubstantial because majority of the surgeons who are treating breast cancer are either general surgeons or breast surgeons who do not have expertise in oncoplastic breast surgery or reconstructive surgery. Moreover, scarcity of financial resources, ignorance about oncoplastic breast surgery techniques, …

Diagnostic Accuracy Of Axillary Nodal Ultrasound After Neoadjuvant Chemotherapy In Node-Positive Breast Cancer Patients: A Validation Study, Syeda Sakina Abidi, Lubna Mushtaque Vohra, Asad Ali Kerawala, Imrana Masroor, Muhammad Umair Tahseen

Section of General Surgery

Objective: To determine the accuracy and false negative rate of axillary ultrasound compared to sentinel node biopsy.
Methods: The retrospective study was conducted at the Aga Khan University Hospital, Karachi, from February 1 to March 31, 2021, and comprised data of breast cancer patients who had undergone neo-adjuvant chemotherapy followed by axillary lymph node dissection or axillary disease diagnosed using lymph node biopsy or sentinel lymph node biopsy between January 1, 2016, and December 30, 2020. After receiving neoadjuvant chemotherapy, axillary ultrasound findings were compared with histopathology of lymph nodes. Data was analysed using SPSS 22.
Results: Of the 155 …

Increased Condom Use Among Key Populations Using Oral Prep In Kenya: Results From Large Scale Programmatic Surveillance, Griffins O. Manguro, Abednego M. Musau, Daniel K. Were, Soud Tengah, Brian Wakhutu, Jason Reed, Marya Plotkin, Stanley Luchters, Peter Gichangi, Marleen Temmerman

Institute for Human Development, East Africa

Background: Female sex workers (FSW) and men having sex with men (MSM) in Kenya have high rates of HIV infection. Following a 2015 WHO recommendation, Kenya initiated national scale-up of pre-exposure prophylaxis (PrEP) for all persons at high-risk. Concerns have been raised about PrEP users’ potential changes in sexual behaviors such adopting condomless sex and multiple partners as a result of perceived reduction in HIV risk, a phenomenon known as risk compensation. Increased condomless sex may lead to unintended pregnancies and sexually transmitted infections and has been described in research contexts but not in the programmatic setting. This study …

Comparison Of Sexually Transmitted Infections And Adverse Perinatal Outcomes In Underserved Pregnant Patients Before Vs During The Covid-19 Pandemic In Texas, Irene A Stafford, Jennie O Coselli, Danielle F Wilson, Courtney Y Wang, Baha M Sibai

Faculty, Staff and Student Publications

This cohort study assesses the rates of sexually transmitted infections (STI) and associated adverse perinatal outcomes among underserved pregnant patients during the COVID-19 pandemic in a public health system in Southeastern Texas.

Maternal Wellness: Self, Matrescence, Obstetric Violence, And Self-Care, Vanessa V. Vales-Lewis

Dissertations, Theses, and Capstone Projects

In this dissertation, I engage in a self-study through an examination of my experience of matrescence (i.e., the transition to motherhood). I discuss my praxis in the development of a self-study on maternal wellness as it applies to my well-being as both a researcher and the researched. In Chapter 1, I preface this study by highlighting critical scholars and the bricoleurs who have been foundational in my undertaking of this work on a narrative study on maternal wellness. Using bricolage as part of a research methodological framework that involved key scholarly methodologies of authentic inquiry, emergence and contingence, and narratology, …

Cryotherapy And Leep Are Effective Treatment For Cin Lesions In Hiv+ And Hiv- Women In Western Kenya, Elkanah Omenge, Naaman Mehta, Ann Mwangi, Victor Omodi, Tao Liu, Edwin Sang, Philip Tonui, Peter Itsura, Kapten Muthoka, Stephen Kiptoo

Obstetrics and Gynaecology, East Africa

Objectives: Cervical cancer is the third most common cancer worldwide and the most common cancer among Kenyan women, with an age-standardized incidence rate of 33.8% in 2018. Cervical intraepithelial neoplasia (CIN) caused by human papillomavirus (HPV) in HIV+ women is over twice as likely to progress in severity compared to HIV- women. Conflicting reports exist as to the efficacy of cryotherapy or loop electrosurgical excision procedure (LEEP) as treatment for CIN among HIV+ women. This study assesses the results of cryotherapy or LEEP for CIN among HIV+ compared to HIV- women in Western Kenya.

Methods: One-hundred and twenty HIV+ (60 …

Hiv-1 Rna Genital Tract Shedding After Cryotherapy For Visual Inspection With Acetic Acid-Positive Cervical Lesions In Western Kenya, Anne Bocage, Elkanah Omenge, Tao Liu, Peter Itsura, Philip Tonui, Kapten Muthoka, Stephen Kiptoo, Soya S. Sam, Angela Caliendo, Susan Cu-Uvin

Obstetrics and Gynaecology, East Africa

Objectives: To quantify genital tract HIV-1 RNA (GT-HIV RNA) shedding among women living with HIV (WLHIV) before and after cryotherapy treatment for visual inspection with acetic acid (VIA) positive cervical lesions.

Methods:We conducted a prospective, longitudinal study of 39 WLHIV on antiretroviral treatment (ART) undergoing cryotherapy for VIA positive lesions in Kenya from 2015-2017. Eligibility for cryotherapy were lesions that covered

Results: Detectable GT-HIV RNA was found in 4/39 (10%) participants pre-cryotherapy, 1/30 (3.3%) and 3/26 (11.5%) participants at the 2- and 8-weeks post-cryotherapy, respectively. Only 6/39 (13%) participants had detectable GT-HIV RNA at any point during the study. …

Missed Opportunities For Family Planning Counselling Among Postpartum Women In Eleven Counties In Kenya, Mary N. Thiongo, Peter B. Gichangi, Michael Waithaka, Amy Tsui, Linnea A. Zimmerman, Scott Radloff, Marleen Temmerman, Saifuddin Ahmed

Obstetrics and Gynaecology, East Africa

Background: Mothers may access medical facilities for their babies and miss opportunities to access family planning (FP) services. This study was undertaken to describe missed opportunities for FP among women within the extended (0–11months) postpartum period from counties participating in Performance Monitoring and Accountability 2020 (PMA2020) surveys.

Design and setting: This study analysed cross-sectional household survey data from 11 counties in Kenya between 2014 and 2018. PMA2020 uses questions extracted from the Demographic and Health survey (DHS) and DHS defnitions were used. Multivariable logistic regression was used for inferential statistics with p-value of <0.05 considered to be signifcant.

Participants: Women aged 15-49 years …

Quality Control For Single Cell Imaging Analytics Using Endocrine Disruptor-Induced Changes In Estrogen Receptor Expression, Fabio Stossi, Pankaj K Singh, Ragini M Mistry, Hannah L Johnson, Radhika D Dandekar, Maureen G Mancini, Adam T Szafran, Arvind U Rao, Michael A Mancini

Faculty, Staff and Students Publications

BACKGROUND: Diverse toxicants and mixtures that affect hormone responsive cells [endocrine disrupting chemicals (EDCs)] are highly pervasive in the environment and are directly linked to human disease. They often target the nuclear receptor family of transcription factors modulating their levels and activity. Many high-throughput assays have been developed to query such toxicants; however, single-cell analysis of EDC effects on endogenous receptors has been missing, in part due to the lack of quality control metrics to reproducibly measure cell-to-cell variability in responses.

OBJECTIVE: We began by developing single-cell imaging and informatic workflows to query whether the single cell distribution of the …

Rspo2 And Rankl Signal Through Lgr4 To Regulate Osteoclastic Premetastatic Niche Formation And Bone Metastasis, Zhiying Yue, Xin Niu, Zengjin Yuan, Qin Qin, Wenhao Jiang, Liang He, Jingduo Gao, Yi Ding, Yanxi Liu, Ziwei Xu, Zhenxi Li, Zhengfeng Yang, Rong Li, Xiwen Xue, Yankun Gao, Fei Yue, Xiang H-F Zhang, Guohong Hu, Yi Wang, Yi Li, Geng Chen, Stefan Siwko, Alison Gartland, Ning Wang, Jianru Xiao, Mingyao Liu, Jian Luo

Faculty, Staff and Students Publications

Therapeutics targeting osteoclasts are commonly used treatments for bone metastasis; however, whether and how osteoclasts regulate premetastatic niche and bone tropism are largely unknown. In this study, we report that osteoclast precursors (OPs) can function as a premetastatic niche component that facilitates breast cancer (BCa) bone metastasis at early stages. At the molecular level, unbiased GPCR ligand/agonist screening in BCa cells suggested that R-spondin 2 (RSPO2) and RANKL, through interaction with their receptor LGR4, promoted osteoclastic premetastatic niche formation and enhanced BCa bone metastasis. This was achieved by RSPO2/RANKL-LGR4 signal modulating the WNT inhibitor DKK1 through Gαq and β-catenin signaling. …