Results 51 to 60 of about 174,558 (215)

Automatic Segmentation of the Placenta in BOLD MRI Time Series [PDF]

arXiv, 2022
Blood oxygen level dependent (BOLD) MRI with maternal hyperoxia can assess oxygen transport within the placenta and has emerged as a promising tool to study placental function. Measuring signal changes over time requires segmenting the placenta in each volume of the time series.
arxiv  

Maternal and neonatal outcomes in transverse and vertical skin incision for placenta previa

BMC Pregnancy and Childbirth, 2021
Background Placenta previa, a serious obstetric issue, should be managed by experienced teams. The safe and appropriate mode of delivery for placenta previa is by cesarean delivery.
D. Fan, Huishan Zhang, J. Rao, Dongxin Lin, Shuzhen Wu, Pengsheng Li, Geng-dong Chen, Zi-xing Zhou, Juan Liu, Ting Chen, Fengying Chen, Xiaoling Guo, Zheng-ping Liu   +12 more
semanticscholar   +1 more source

Optimal villi density for maximal oxygen uptake in the human placenta [PDF]

J. Theor. Biol. 364 (2015), 383-96, 2014
We present a stream-tube model of oxygen exchange inside a human placenta functional unit (a placentone). The effect of villi density on oxygen transfer efficiency is assessed by numerically solving the diffusion-convection equation in a 2D+1D geometry for a wide range of villi densities.
arxiv   +1 more source

The association between placenta previa and the risk of breech presentation: A meta-analysis

Advances in Human Biology, 2023
Numerous observational studies have described that placenta previa can increase the risk of breech presentation. To date, no meta-analysis has been conducted to determine the association between placenta previa and increased risk of breech presentation ...
Ensiyeh Jenabi, Maryam Afshari
doaj   +1 more source

Correlation between perinatal abnormalities and decreased fetal movement as counted by a fetal movement acceleration measurement recorder: A prospective cohort study

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract Objective The objective was to study the relationship between a decrease in gross fetal movement during maternal night sleep counted by an objective method and abnormal perinatal outcomes. Methods This was a prospective cohort study. A total of 470 pregnant women recorded fetal movement with the fetal movement acceleration measurement recorder
Eiji Ryo, Hideo Kamata, Keita Yatsuki
wiley   +1 more source

Single Cell Transcriptome Research in Human Placenta [PDF]

arXiv, 2020
Human placenta is a complex and heterogeneous organ interfacing between the mother and the fetus that supports fetal development. Alterations to placental structural components are associated with various pregnancy complications. To reveal the heterogeneity among various placenta cell types in normal and diseased placentas, as well as elucidate ...
arxiv  

Placenta Previa and Adverse Neonatal Outcomes in A Tertiary Center

Bagcilar Medical Bulletin
Objective: Abnormal localization of the placenta with complete or partial closure of the cervix is called placenta previa. Placenta previa occurs in approximately 0.3-0.5% of pregnancies.
Melih Bestel, Verda Alpay Türk, Ali Ekiz, Ayşegül Bestel, Onur Karaaslan, Doğukan Yıldırım, İbrahim Polat   +6 more
doaj   +1 more source

Maternal Risk Factors & Perinatal Outcomes in Women with Placenta Previa: A Cross Sectional Study

Advanced Medical Journal, 2023
Background and objectives: Placenta previa is one of the main factors in adverse maternal and neonatal outcomes. This study was conducted to determine risk factors for placenta previa and subsequent maternal and perinatal outcomes.
Zanwer Sabir Mahmood, Ariana Khalis Jawad   +1 more
doaj   +1 more source

Immediate skin‐to‐skin contact and postpartum hemorrhagic morbidity

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract Objective To examine rates of postpartum hemorrhagic (PPH) morbidity among patients who did and did not have immediate skin‐to‐skin contact (SSC). Methods This study was a retrospective cohort of all non‐anomalous, term singleton vaginal births at a Level IV center over 2 years. Exclusion criteria included COVID‐19.
Rachel L. Wiley, Ipsita Ghose, Dana R. Canfield, Minhazur R. Sarker, Hector Mendez‐Figueroa, Suneet Chauhan   +5 more
wiley   +1 more source

A systematic review and meta‐analysis of randomized controlled trials on the effects of internal iliac artery balloon occlusion in placenta previa and placenta accreta spectrum in reducing perioperative bleeding

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract Background Preoperative prophylactic balloon occlusion (PPBO) of internal iliac arteries (IIAs) in placenta previa and placenta accreta spectrum (PAS) has been widely used as a preventive adjuvant technique to reduce blood loss and to preserve fertility. Nevertheless, the efficacy of PPBO is based primarily on retrospective studies.
Rula Iskander, Manal Massalha, Chen Remer, Ido Izhaki, Raed Salim   +4 more
wiley   +1 more source