Human chorionic gonadotropin levels in conception cycles after uterine and tubal embryo transfer.
OBJECTIVE
To describe the rate of rise of beta-hCG levels in normal single gestations after uterine and tubal embryo transfer.


METHODS
A prospective study from 1991 through 1992 in which infertility patients who conceived after ovulation induction and ET were monitored with serum beta-hCG levels.


METHODS
Infertility unit at Rush-Presbyterian-St. Luke's Medical Center in Chicago, Illinois.


METHODS
Ninety-eight women conceived after ovarian stimulation and ET. This study included only patients who conceived after uterine ET (n = 12) and tubal ET (n = 25) and had an exponential rise of beta-hCG levels and sonographic evidence of an intrauterine gestation.


RESULTS
The rate of rise of mean beta-hCG levels after ET preceded that of tubal ET by 24 hours until day 14 when the two approximate each other.


CONCLUSIONS
There appears to be a unique interaction between the trophoblast and endometrial surface that may account for the early detection of beta-hCG after uterine versus tubal ET.
Soltes
B
B
Department of Obstetrics and Gynecology, Rush-Presbyterian-St. Luke's Medical Center, Chicago, Illinois 60612.
Rawlins
R G
RG
Binor
Z
Z
Radwanska
E
E
D000328:Adult; D006063:Chorionic Gonadotropin / Q000097:blood*; D004624:Embryo Transfer / Q000379:methods*; D005187:Fallopian Tubes; D005260:Female; D005306:Fertilization; D006801:Humans; D011446:Prospective Studies; D013997:Time Factors; D014599:Uterus
D006063:Chorionic Gonadotropin