luteal phase support
Hormonal supplementation after ovulation or embryo transfer to maintain pregnancy viability.
Full Definition
Luteal phase support involves the administration of progesterone or other hormones during the luteal phase of the menstrual cycle to support implantation and early pregnancy development. This intervention is particularly important in assisted reproductive technology cycles, where controlled ovarian hyperstimulation and egg retrieval can disrupt normal corpus luteum function. Progesterone supplementation may be provided through vaginal suppositories, intramuscular injections, or oral preparations. The support typically continues until the placenta assumes adequate hormone production, usually around 8-10 weeks of pregnancy. Proper luteal phase support is crucial for optimizing pregnancy rates in IVF cycles.
Usage
Usage note: Distinguish from follicular phase support, which occurs before ovulation.
In Context
- "Luteal phase support with vaginal progesterone was initiated on the day of embryo transfer." — Treatment protocol
- "The clinic's luteal phase support protocol continued until 10 weeks gestational age." — Clinical guideline