نتایج جستجو برای: prenatal test
تعداد نتایج: 845623 فیلتر نتایج به سال:
The purpose of prenatal diagnosis tests is insisting of diagnosis of neonatal disorders, preparing a range of informed choices and making couples at risk to be ready for having children with genetic disorders as well. The aim of this article is to investigate all of the tests in order to determine the best one which has the lowest risk and the highest sensitivity. Screening tests (maternal bloo...
the prevalence of primary infection with t. gondii in pregnant women and risk of congenital infection in their neonates in various parts of tehran are unknown. the prevalence rate of antibodies to t. gondii ranges from 24% in tehran to 62.7% in babol. this study describes the epidemiology of toxoplasma infection in pregnant women in tehran and risk factors of congenital toxoplasmosis in newborn...
BACKGROUND Factors influencing a pregnant woman's decision to accept prenatal testing are largely undefined. Our study aimed to compare the acceptance rate of prenatal diagnosis in women who conceived through IVF or ICSI (cases) with that of women who conceived spontaneously (controls). METHODS Retrospective chart review in Lebanon of all primiparas carrying singletons who were offered prenat...
Exposure to adversity in utero at a sensitive period of development can bring about physiological, structural, and metabolic changes in the fetus that affect later development and behavior. However, the link between prenatal environment and offspring outcomes could also arise and confound because of the relation between maternal and offspring genomes. As human studies cannot randomly assign off...
The performance of prenatal screening tests for the identification of trisomy 21 (Down syndrome) has markedly improved since the 1970s and early 1980s when maternal age was the sole mode of screening the general pregnant population. With the discovery of second trimester serum markers in the 1980s and 1990s and implementation of double, triple, and quad marker testing; the discovery of first tr...
OBJECTIVES Efforts to prevent perinatal transmission of HIV include implementation of prenatal counseling and testing programs. The objective of this study was to assess organizational predictors of HIV counseling and testing. METHODS Surveillance records were collected on 5900 prenatal patients from 9 hospital and community clinics in Connecticut. RESULTS Some organizational factors (e.g.,...
OBJECTIVE To report the performance of massively parallel sequencing (MPS) based prenatal noninvasive fetal trisomy test based on cell-free DNA sequencing from maternal plasma in a routine clinical setting in China. METHOD The MPS-based test was offered as a prenatal screening test for trisomies 21 and 18 to pregnant women in 49 medical centers over 2 years. A total of 11,263 participants wer...
INTRODUCTION The objective of this study was to examine correlates of ever having had a Papanicolaou (Pap) test among women who recently delivered a live infant and who resided near the US-Mexico border. METHODS This cross-sectional study included women who delivered a live infant in Matamoros, Mexico (n = 488) and Cameron County, Texas (n = 453). Women were interviewed in the hospital before...
Prenatal screening for Down syndrome (DS) based on biomarker levels provides expectant parents with an estimated risk of a DS baby. The risk cutoff value of a prenatal screening test determines the detection and false positive rates and the selection of follow-up procedures, such as an invasive diagnostic test. Women who consider prenatal screening might face two undesirable outcomes: undetecte...
The prenatal exclusion test for Huntington's disease: experience in the west of Scotland, 1986-1993.
Information about the prenatal exclusion test for Huntington's disease (HD) has been given to an unselected series of couples who attended the genetic counselling clinic from 1986 onwards. Ten couples underwent 13 prenatal tests during this period with expressed intention of stopping a pregnancy if the result indicated a high risk (almost 50%) that the fetus carried the HD gene. Nine fetuses at...
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