chemical pregnancy


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Related to chemical pregnancy: ectopic pregnancy

chemical pregnancy

slight, unsustained rise in HCG levels.

chemical pregnancy

n.
Pregnancy resulting from in vitro fertilization or other reproductive technology, characterized by low levels of HCG and usually miscarriage prior to implantation.

chem·i·cal preg·nan·cy

(kem'i-kăl preg'năn-sē)
Slight, unsustained rise in levels of human chorionic gonadotropin.
References in periodicals archive ?
The success of IVF among women was 22% based on chemical pregnancy (blood test).
Adjusting the number of transferred embryos as well as fetus grade, (21) it was found that practicing SA is twice as much as GA related to increased chance of chemical pregnancy.
Documentation by the physician that signals that 631.0 should be reported might include a reference to biochemical pregnancy, chemical pregnancy, or an inappropriate level of quantitative hCG for gestational age in early pregnancy.
There was no difference between the study and control groups regarding chemical pregnancy (36.4% vs.
Outcome measures of cycles in study and control groups Transdermal Oral Parameter (Unit) patch (n=45) (n=45) P-value Implantation rate 20.45% 11.7% 0.13 Chemical pregnancy 16 (36.4%) 13 (31%) 0.65 rate/cycle Clinical pregnancy 16 (36.4%) 12 (28.6%) 0.29 rate/cycle Clinical 0 (0%) 2 (4.8%) 0.23 abortion rate
Of the 2,350 couples in the main study, 765 women were selected by the outcome of their first IVF cycle (failed implantation, chemical pregnancy, spontaneous abortion, or live birth).
A chemical pregnancy was defined by a post-ET hCG measurement of [greater than or equal to] 5.0 mIU/mL with no further embryonic development (gestational sac or yolk sac).
Chemical pregnancy was detected by serum hCG determination 14 days after embryo transfer (ET) and was confirmed with second HCG determination on 16 days after ET and transvaginal ultrasound scan was scheduled 2 weeks later to detect the gestational sac of pregnancy.
This study has shown no statistical difference with respect to chemical pregnancy and clinical pregnancy between three groups.
None of the individual PCBs or PCB groupings were associated with chemical pregnancy or spontaneous abortion.
No statistically significant associations between PCBs and chemical pregnancy or spontaneous abortion were found.
Increasing quartiles of PCB-153 and the sum of all measured PCB congeners were associated with significantly elevated dose-dependent odds of failed implantation, but no statistically significant associations were observed between PCBs and chemical pregnancy or spontaneous abortion.
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