نتایج جستجو برای: first and second trimester screening
تعداد نتایج: 17012020 فیلتر نتایج به سال:
conclusions the results showed that awareness of patients and a few doctors about the first trimester screening tests was respectively weak and middle level, showing that there is an urgent need for greater awareness in this field, regarding the importance of detecting some chromosomal abnormalities prior to birth. objectives the aim of this study was to examine the extent of awareness of physi...
background: fetal nasal bone assessment is a non-invasive procedure that helps provide even greater assurance to patients undergoing their first trimester risk assessment for aneuploidies. absence or presence of this factor is different in some races. objective: the study was aimed to evaluate nasal bone in the first trimester of pregnancy in the indigenous population of khuzestan province, and...
AIM The aim of this study is to set up a database in order to monitor the detection rates and false-positive rates of first-trimester screening for chromosomal abnormalities and prenatal detection rates of fetal malformations in Denmark. STUDY POPULATION Pregnant women with a first or second trimester ultrasound scan performed at all public hospitals in Denmark are registered in the database....
In the second half of the 20 century, the prenatal diagnosis armamentarium changed dramatically with the introduction of amniocentesis and chorionic villus sampling. Both modalities are, however, invasive techniques and carry a certain risk, albeit low (0.5–1%), of pregnancy loss [1]. Routine noninvasive methods of prenatal diagnosis include firstand second-trimester ultrasonography and materna...
The incidence of multifetal pregnancies has increased dramatically over the past two decades, mainly because of the widespread use of ovulation induction agents and assisted reproduction techniques. These techniques have been a matter of concern since twin and higher order pregnancies have long been associated with an increased risk of maternal complications as well as a high prevalence of pren...
in this thesis, first the notion of weak mutual associativity (w.m.a.) and the necessary and sufficient condition for a $(l,gamma)$-associated hypersemigroup $(h, ast)$ derived from some family of $lesssim$-preordered semigroups to be a hypergroup, are given. second, by proving the fact that the concrete categories, semihypergroups and hypergroups have not free objects we will introduce t...
in the first chapter we study the necessary background of structure of commutators of operators and show what the commutator of two operators on a separable hilbert space looks like. in the second chapter we study basic property of jb and jb-algebras, jc and jc-algebras. the purpose of this chapter is to describe derivations of reversible jc-algebras in term of derivations of b (h) which are we...
Objective Infertility affects different aspects of life as well as quality of life (QOL) in infertile couples. Many infertile couples conceive via using Assisted Reproduction Technologies (ART). However, the effect of pregnancy and childbearing on QOL is not known in these couples. This study aim was to evaluate quality of life and general health during pregnancy and after successful treatment ...
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