The efficiency of human reproduction after in vitro ferilization and embryo transfer

H. C. Liu, H. W. Jones, Z. Rosenwaks

Research output: Contribution to journalArticle

Abstract

Two hundred ninety-seven nonpregnant patients were used to study the possibility of early transient implantation as a parameter of the efficiency of in vitro fertilization (IVF) procedures. Ten patients without embryo transfer (ET) were used as controls. The luteal estradiol, progesterone, and human chorionic gonadotropin were measured by radioimmunoassay (RIA). In 31 cases, a transient elevation of hCG occurred after complete serum clearance of exogenous hCG, suggesting that the transient increase in hCG was of embryonic origin. In addition, five patient were found to have prolonged clearance of hCG, which was due not to individual variation in clearance, but to a minimal production of hCG by trophoblastic tissue. These data suggest that implantations occurred in 12.1% of our so-called 'nonpregnant' patients.

Original languageEnglish (US)
Pages (from-to)649-653
Number of pages5
JournalFertility and sterility
Volume49
Issue number4
StatePublished - Jan 1 1988

ASJC Scopus subject areas

  • Reproductive Medicine
  • Obstetrics and Gynecology

Fingerprint Dive into the research topics of 'The efficiency of human reproduction after in vitro ferilization and embryo transfer'. Together they form a unique fingerprint.

  • Cite this