OBJECTIVE The previously held dictum that elective abortion before 6 weeks' gestation carried greater risks than a later procedure was challenged by this protocol. STUDY DESIGN This study evaluated a protocol for abortion before the customary 6 weeks' gestation. Patients willing to return to the clinic within 72 hours were given the option of elective abortion even when no gestational sac cou...

introduction: considering the high incidence of preterm labor and its known complications, and that human myometrium contains receptors for human chronic gonadotropin (hcg) and that hcg can inhibit myometrial contractions on vitro, made me study treating effects of hcg on preterm labor. this clinical trial study was carried out to compare the effect of hcg, and magnesium sulfate (mgso4) on prev...

Fully Automated Chemiluminometric Assay for Hyperglycosylated Human Chorionic Gonadotropin (Invasive Trophoblast Antigen), Raj Pandian, Julie Lu, and Jolanta Ossolinska-Plewnia ( Quest Diagnostics, Nichols Institute, 33608, Ortega Highway, San Juan Capistrano, CA 92690; 2 Nichols Institute Diagnostics, San Clemente, CA 92673; * author for correspondence: fax 949-728-4990, e-mail pandianr@questd...

BACKGROUND In screening for Down's syndrome in the second trimester of pregnancy, the concentrations of alpha-fetoprotein, the beta subunit of human chorionic gonadotropin, and intact human chorionic gonadotropin in material serum are widely used markers. We investigated a new marker, dimeric inhibin A, and compared its predictive value with that of the established markers. METHODS Serum samp...

Eighty-nine patients who had hydatidiform moles evacuated at the General Hospital, Kuala Lumpur, were followed with serum beta hCG determinations from October 1988 to June 1991. A regression curve for serum beta hCG, as measured by RIA, was derived from the results of 47 of the patients who demonstrated spontaneous regression of serum beta hCG titres. All 47 patients had normal serum titres at ...

Family physicians often use quantitative human chorionic gonadotropin (HCG) testing to assess first-trimester bleeding. While we anticipate a range of normal results for any given week in the first trimester, we predict an approximate doubling over 48 hours in a normal pregnancy during the first trimester. Human chorionic gonadotropin tends to peak at about 10 weeks’ gestation before declining ...