نتایج جستجو برای: horseshoe shape placenta placental abnormality preterm labour

تعداد نتایج: 431793  

2015
Shunji Suzuki Masahiko Kato

BACKGROUND We examined the clinical significance of pregnancies complicated by velamentous cord insertion (VCI) associated with other umbilical cord/placental abnormalities. METHODS Data were collected from 168 deliveries complicated by VCI and from 16,797 unaffected controls. All placentae were screened identically by trained staff. In this study, we examined the presence of excessively long...

Journal: :American journal of obstetrics and gynecology 2012
Sunita Trivedi Maria Joachim Thomas McElrath Harvey J Kliman Elizabeth N Allred Raina N Fichorova Andrew Onderdonk Fernanda Heitor Leila Chaychi Alan Leviton Joseph A Majzoub

OBJECTIVE Spontaneous labor at term involves the activation of placental corticotropin-releasing hormone and the fetal adrenal axis, but the basis for extreme preterm labor is unknown. Our objective was to determine whether placental corticotropin-releasing hormone is activated in extreme preterm labor. STUDY DESIGN One thousand five hundred six mothers delivering at less than 28 weeks' gesta...

Journal: :Cases Journal 2008
Shimma S Rahman Jenny E Myers Joanna C Gillham Richard Fitzmaurice Tracey A Johnston

INTRODUCTION Uterine atony is the most common cause of primary post partum haemorrhage. We report a case where this was complicated by two rare conditions, platelet storage pool disease and placenta diffusa. Platelet storage pool disease is a platelet aggregation disorder associated with mild to moderate bleeding diathesis. There are limited cases reported in pregnancy. Placenta diffusa is a ra...

2014
Simon L. Cotter Václav Klika Laura Kimpton Sally Collins Alexander E. P. Heazell

In the human, placental structure is closely related to placental function and consequent pregnancy outcome. Studies have noted abnormal placental shape in small-for-gestational-age infants which extends to increased lifetime risk of cardiovascular disease. The origins and determinants of placental shape are incompletely understood and are difficult to study in vivo. In this paper, we model the...

Journal: :Kathmandu University medical journal 2011
S R Tamrakar C D Chawla

Gestational trophoblastic disease encompasses a diverse group of lesion. If molar changes in the placenta are known along with an alive fetus then the situation is difficult to manage. We present successfully managed case of partial degeneration of placenta in molar pregnancy with an alive fetus at second stage of preterm labour.

Journal: :Frontiers in bioscience : a journal and virtual library 2007
David M Olson Christina Ammann

Parturition is composed of five separate but integrated physiological events: fetal membrane rupture, cervical dilatation, myometrial contractility, placental separation, and uterine involution. Prostaglandins (PGs) have central roles in each of these events, but the most studied is myometrial contraction. Elevated uterine PGs or the enhanced sensitivity of the myometrium to PGs leads to contra...

2018
Zbynĕk Straňák Simona Feyereislová Peter Korček Eugene Dempsey

Postnatal adaptation in preterm newborn comprises complex physiological processes that involve significant changes in the circulatory and respiratory system. Increasing hemoglobin level and blood volume following placental transfusion may be of importance in enhancing arterial oxygen content, increasing cardiac output, and improving oxygen delivery. The European consensus on resuscitation of pr...

2003

Preterm birth is the most important single determinant of adverse infant outcome, in terms of both survival and quality of life. Although preterm birth is defined as being before 37 completed weeks, most mortality and morbidity is experienced by babies born before 34 weeks. Prevention and treatment of preterm labour is important, not as an end in itself, but as a means of reducing adverse event...

2017
D. Berry Hart

The question of the mechanism and management of the third stage of labour is at present in a curiously paradoxical position. The view that the placenta is separated in the main by an extreme diminution in area of the placental site is the popular one, and should have as its result the adoption of the Crede method of managing the third stage of labour. Practically, however, this method has been ...

2016
Mriganka Mouli Saha Debasmita Mondal Subhash Chandra Biswas

Objective: Evaluation of fetal and maternal outcomes in pregnancy with leiomyoma uteri. Methods: Total 50 pregnant women with uterine myoma attending the department of Obstetrics and Gynecology of IPGME&R, Kolkata were followed during the antenatal, intranatal and postnatal period. Total 200 women of normal uncomplicated pregnancy were recruited as control and matched for age and parity. Result...

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