【摘 要】
：
Human Chorionic Gonadotrophin (hCG) is produced at the earliest stages of pregnancy such that it can be detected in urine as early as 7 days following ovulation, if highly sensitive immunoassays are u
【机 构】
：
SPD Development Company Ltd.UK
【出 处】
：
BIT`s 1st International Congress of Gynaecology and Obstetri
论文部分内容阅读
Human Chorionic Gonadotrophin (hCG) is produced at the earliest stages of pregnancy such that it can be detected in urine as early as 7 days following ovulation, if highly sensitive immunoassays are used, and as early as 9 days with home pregnancy tests.Levels rise exponentially in early,ongoing pregnancy.When start of pregnancy is aligned by day of ovulation rather than last menstrual period (LMP), levels ofhCG in urine are sufficiently similar between volunteers (including different ethnicities/races), to enable urinary hCG concentration to be related to pregnancy duration, at least in the first few weeks of pregnancy.This has enabled the development of a home pregnancy test that as well as giving a pregnancy result provides an estimation of pregnancy duration.Studies on both the accuracy of urinary hCG, and the home pregnancy test in correctly assessing pregnancy duration have been conducted, comparing to both luteinising hormone (LH) surge as a marker for of day ovulation, and first trimester ultrasound (Crown Rump Length Measurement, both under a controlled clinical setting and standard-of-care setting).When ultrasound was used as a reference, median hCG concentration was lower on each day, compared to using LH.This was due to pregnancy duration being on average 3 days more when calculated by ultrasound compared to LH surge.The home pregnancy test was found to assess pregnancy duration with an accuracy of 92% when compared to LH surge and 98% agreement with standard-of-care ultrasound.
其他文献
INTRODUCTION: The quality and safety of maternal medicine can be improved by training of individual professionals.However, it might be more effective to train the complete team than just the individua
Taiwan has a growing HIV/AIDS epidemic that has recently shifted to an increase among injection drug users (IDUs).In 2003, only 2.1% of HIV-positive individuals were IDUs in Taiwan.Since 2003, the pro
The achievement of successful pregnancy in humans by intracytoplasmic sperm injection (ICSI) was first reported by Palermo et al.in 1992.Since then, ICSI has been used as an essential technique in ass
INTRODUCTION: Ten years ago we described the first successful treatment of life-threatening postpartum haemorrhage with arterial balloon occlusion of the hypogastric arteries.The advantage of this pro
Fetal and neonatal alloimmune thrombocytopenia (FNAIT) is a severe bleeding disorder that results from fetal platelet destruction caused by maternal anti-platelet antibodies during the pregnancy.FNAIT
The Registry of Congenital Malformations of Alsace is the only population-based registry from northeastem France.The covered population concerns infants born from mothers living in the region and givi
Fetuses with chlothorax complicated by symptomatic polyhhydramnios or hydrops far from term require in-utero therapy.Conventionally, fetal pleuroamniotic shunting is the preferred option.Fetal pleurod
This oral presentation is given by one of the co-authors of a paper, a lawyer who has a background in molecular genetics.The presentation summarises the paper by outlining the critical avoidable error
The Center for Fetal Diagnosis and Treatment at the Childrens Hospital of Philadelphia is a high volume tertiary care center dealing with a wide variety of prenatal abnormalities with a multidisciplin
While post-partum depression is a condition found to affect a significant number of the population worldwide, it has gone largely undetected by primary health care teams.Early detection and accessible