Search engine for discovering works of Art, research articles, and books related to Art and Culture
Javascript must be enabled to continue!
Placenta and uteroplacental perfusion
View through CrossRef
The placenta is a complex and changing organ necessary for normal fetal growth and development and for maintenance of a healthy pregnancy. It has three major functions: a protective function of the fetus, an endocrine function, and a metabolic function. The main functional unit of the placenta is the chorionic villous, responsible for the majority of the fetal–maternal exchanges. Migration of trophoblastic cells induces a remodelling of the uterine arteries, with vasodilatated and compliant vessels, unresponsive to maternal vasomotor control. Therefore, any significant change in maternal blood pressure, in particular in the context of general or regional anaesthesia, can directly impact on uteroplacental perfusion. Most anaesthetic drugs cross the placental barrier, but without significant consequences on the fetal well-being.
Title: Placenta and uteroplacental perfusion
Description:
The placenta is a complex and changing organ necessary for normal fetal growth and development and for maintenance of a healthy pregnancy.
It has three major functions: a protective function of the fetus, an endocrine function, and a metabolic function.
The main functional unit of the placenta is the chorionic villous, responsible for the majority of the fetal–maternal exchanges.
Migration of trophoblastic cells induces a remodelling of the uterine arteries, with vasodilatated and compliant vessels, unresponsive to maternal vasomotor control.
Therefore, any significant change in maternal blood pressure, in particular in the context of general or regional anaesthesia, can directly impact on uteroplacental perfusion.
Most anaesthetic drugs cross the placental barrier, but without significant consequences on the fetal well-being.
Related Results
Partial Volume Effects
Partial Volume Effects
Partial volume effects are present in all medical imaging methods, and they play a specific role in arterial spin labeling (ASL) MRI measurements of perfusion. This chapter demonst...
Using ASL to Measure Perfusion Changes in an Individual: Task-Based ASL and Beyond
Using ASL to Measure Perfusion Changes in an Individual: Task-Based ASL and Beyond
Arterial spin labeling (ASL) MRI measurements of perfusion provide a flexible and unique way to study the brain’s physiology and function. They enable experimental designs in neuro...
Introduction
Introduction
This chapter details the widely accepted standard approach to arterial spin labeling (ASL) acquisition and the associated analysis needed to extract an image of perfusion in the br...
Kinetic Modeling
Kinetic Modeling
The quantification of perfusion from arterial spin labeling (ASL) perfusion MRI data relies upon the principles of tracer kinetics. This chapter first outlines the simplest form of...
Introduction to Shock
Introduction to Shock
The chapter “Introduction to Shock” reviews the definition, classification, epidemiology, pathophysiology, clinical manifestations, and therapeutic goals of shock. It examines the ...
Reproductive and Developmental Disorders
Reproductive and Developmental Disorders
This chapter describes reproductive disorders and developmental disorders, with a focus on their recognition and prevention. Certain hazardous exposures at sufficient doses during ...
ASL Acquisition Principles
ASL Acquisition Principles
A variety of acquisition methods for arterial spin labeling (ASL) perfusion MRI exist, often with different names referring to broadly similar approaches. This chapter outlines the...
Stress echocardiography
Stress echocardiography
Stress echocardiography is a widely used method for assessing coronary artery disease, due to the high diagnostic and prognostic value. While inducible ischaemia predic...