نتایج جستجو برای: chorionic villi sampling

تعداد نتایج: 220966  

Journal: :Journal of virology 2000
S Fisher O Genbacev E Maidji L Pereira

Human cytomegalovirus (CMV) is the leading cause of prenatal viral infection. Affected infants may suffer intrauterine growth retardation and serious neurologic impairment. Analysis of spontaneously aborted conceptuses shows that CMV infects the placenta before the embryo or fetus. In the human hemochorial placenta, maternal blood directly contacts syncytiotrophoblasts that cover chorionic vill...

Journal: :Journal of prenatal medicine 2007
Francesca Gullotta Michela Biancolella Elena Costa Isabella Colapietro Anna Maria Nardone Paolo Molinaro Adalgisa Pietropolli Marianovella Narcisi Cristiana Di Rosa Giuseppe Novelli

Cytogenetic analysis is a crucial tool of prenatal diagnosis. The ability to rapidly detect aneuploidy and identify small structural abnormalities of foetal chromosomes has been greatly improved by the use of molecular cytogenetic technologies. Microarray-based Comparative Genomic Hybridization (aCGH) has been recently employed in postnatal diagnosis of cryptic chromosomal aberrations, but use ...

ژورنال: ارمغان دانش 2022

Background and aim: Beta thalassemia is one of the most common hereditary disorders in Iran. The aim of this study is to improve the quality of life of couples with thalassemia and prenatal diagnosis of thalassemia major through the chorionic villus sampling technique. Methods: This prospective study was conducted on couples suffering from thalassemia minor who referred to Narges Genetics Labo...

2004
BURTON L. BAKER

A large number of investigators have studied the general histology of the chorionic villus and decidua parietalis but few of them have been particularly concerned with the ccllular components which may be associated with the process of secretion. In 1916, de Kervily published two papers in which he described in considerable detail the cytology of the human chorionic villus. Many of his observat...

Journal: :The journal of obstetrics and gynaecology research 2012
Constantijn G Bauland Jeroen M Smit Saskia M Scheffers Ronald H Bartels Paul van den Berg Clark J Zeebregts Paul H Spauwen

AIM In an earlier study we have shown that transcervical chorionic villus sampling in excess of 90 mg increases the risk for hemangiomas of infancy three- to four-fold compared to amniocentesis. In the present study we investigated whether transabdominal chorionic villus sampling (TA-CVS), in which the samples are smaller, carries the same risk. MATERIAL AND METHODS Retrospectively, data were...

Journal: :Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology 2015
R Akolekar J Beta G Picciarelli C Ogilvie F D'Antonio

OBJECTIVES To estimate procedure-related risks of miscarriage following amniocentesis and chorionic villus sampling (CVS) based on a systematic review of the literature and a meta-analysis. METHODS A search of MEDLINE, EMBASE, CINHAL and The Cochrane Library (2000-2014) was performed to review relevant citations reporting procedure-related complications of amniocentesis and CVS. Only studies ...

Journal: :Journal of Education, Health and Sport 2021

The authors of the article investigated quantitative parameters placental chorion tree during physiological pregnancy and gestation against background iron deficiency anemia. It has been established that anemia in pregnant women inhibits development chorionic tree, which is explained by formation villi (through trophoblastic free processes) violation transition terminal to "specialized" villi. ...

Journal: :Journal of medical genetics 1989
J Llerena M Murer-Orlando M McGuire L Zahed R J Sheridan A C Berry M Bobrow

Patients with ataxia telangiectasia (AT) syndrome exhibit a high level of spontaneous chromosome aberrations, with hypersensitivity to gamma radiation and radiomimetic chemicals at the chromosomal and cellular level. Previously pregnancies at risk for AT have been screened solely by analysis of amniotic fluid samples. In this report we describe a cytogenetic approach to the prenatal diagnosis o...

Journal: :Medical care 1994
P S Heckerling M S Verp

Amniocentesis and chorionic villus sampling are tests for the prenatal diagnosis of cytogenetic abnormalities. We calculated the incremental costs per abnormal birth averted, and the incremental costs per quality-adjusted outcome, of amniocentesis and chorionic villus sampling performed for the indication of maternal age. Probabilities were obtained from the literature, and direct medical costs...

Journal: :Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology 2009
G Battagliarin M Lanna D Coviello B Tassis A Quarenghi U Nicolini

OBJECTIVE The technique used to perform transabdominal chorionic villus sampling (CVS) is not standardized, but aspiration of villi is generally obtained by discontinuous vacuum created in a syringe, manually or by a hand-grip device. We evaluated the feasibility of a new method of performing CVS which employs a 4-mL Vacutainer connected to the needle, producing a continuous negative pressure. ...

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