PURPOSE: Our goal was to compare serum human chorionic gonadotropin (hCG) levels in singleton pregnancies achieved following IVFET with those achieved following spontaneous conception. RESULTS: The mean serum hCG level of patients who became pregnant following IVFET lagged 1.5 days behind that of patients who became pregnant spontaneously. CONCLUSIONS: The use of gonadotropin releasing hormone analogue as part of the stimulation protocol leading to egg retrieval and IVFET results in a delay in embryo implantation.
PURPOSE: Our goal was to compare serum human chorionic gonadotropin (hCG) levels in singleton pregnancies achieved following IVFET with those achieved following spontaneous conception. RESULTS: The mean serum hCG level of patients who became pregnant following IVFET lagged 1.5 days behind that of patients who became pregnant spontaneously. CONCLUSIONS: The use of gonadotropin releasing hormone analogue as part of the stimulation protocol leading to egg retrieval and IVFET results in a delay in embryo implantation.
Authors: M W Seif; J M Pearson; Z H Ibrahim; C H Buckley; J D Aplin; P Buck; P L Matson; B A Lieberman Journal: Hum Reprod Date: 1992-01 Impact factor: 6.918
Authors: M I Hsu; G Barroso; J Mayer; S Lanzendorf; W E Gibbons; S Muasher; S Oehninger Journal: J Assist Reprod Genet Date: 2000-01 Impact factor: 3.412