Background Although prior work has attempted to predict pregnancy outcomes by assaying
serum β-hCG levels after blastocyst transfer, no study has focused on pregnancy outcomes …

Objective To investigate the pregnancy outcomes of patients with low serum β-hCG level 14
days after day 3 embryo transfer. Methods A retrospective study was performed with 723 …

The aim of this study is to compare the serum β-hCG values post transfer of a cleavage
stage embryo versus a blastocyst stage embryo at equal time intervals post oocyte retrieval …

We previously explored the associations between β-hCG on the 14th day post–embryo
transfer (ET) and reproductive outcomes and established a series of cutoff values to predict …

Objective. Analysis of serum β-human chorionic gonadotropin (β-hCG) levels on
standardized days after oocyte retrieval (OR) following single blastocyst transfer to predict …

Objective Early monitoring of plasma human chorionic gonadotropin (β-hCG) level is vital in
predicting pregnancy outcome. This study investigated the predictive value of serum β-hCG …

Study question What is the role of the initial β-hCG value and the β-hCG rate of increase
after 2 days in the predictability of the pregnancy outcomes? Summary answer The initial β …

Objective To determine the relationship between serum levels of the β-subunit of human
chorionic gonadotropin (β-hCG) on day 24 of pregnancy during a frozen embryo transfer …

Research question Does the blastocyst development stage on embryo transfer day affect
serum β-human chorionic gonadotrophin (β-HCG) concentration 9 and 16 days after embryo …

Purpose: Our purpose was to assess the predictive value for pregnancy outcome of an initial
serum quantitative β-hCG measurement obtained 11 or 12 days after embryo transfer in an …