Hyperstimulation (Ovarian hyperstimulation Syndorome – OHSS)
In connection with hormones, there’s risk of hyperstimulation (excessive stimulation) ovary – Ovarian hyperstimulation Syndorome – OHSS. The main characteristics of OHSS are painful ovarian enlargement, accumulation of fluid in the abdomen (sometimes in the chest), nausea, vomiting, dehydration and the risk of thrombosis (potentially very serious).
OHSS, when it occurs, occurs in the last week of the cycle in which the donation of eggs, or even a few days after the embryos and transferred back into the uterus. Everything is simultaneously affected resp. succeeding pregnancy, so if there is a serious risk of OHSS, we recommend freezing all your embryo transfer and the postponement of the time when it comes to calm the situation ovaries.
Our medicine knows effective methods by which symptoms and difficulties can effectively reduce and monitor up to their abandonment (infusion, aspiration of fluid from the abdominal cavity …). This care can provide you with our facility that has experience with this treatment.
Long-term cancer risk for IVF cycle is still unknown, but in general it seems to be minimal. It is believed that estrogen sensitive tissues such as breast, uterus, cervix and ovaries may partly be influenced by long-term IVF treatment.
However, studies in women undergoing hormonal therapy, it has not been shown. Infertility may be linked to cancer due to the fact that pregnancy should have protective effects against certain types of cancers, particularly ovarian cancer.
Hormones may accelerate the growth of existing cancer cells in some tissues. Therefore we recommend that before embarking on IVF treatment, breast examination, medical gynecological examination and cervical smear cytologic (onkologic). In addition, you should be sure that you are immune to rubeolle (rubella), and is also reasonable to start taking vitamins, such as folic acid.
In rare cases, complications may occur during the collection of eggs – bleeding, infection risk, the risk of rupture of the follicle, the risk of injury to structures in the pelvis or abdomen.
Pregnancy after IVF
Congenital malformations after IVF
Pregnancy after IVF does not increase the incidence of malformations in fetuses as compared to the general population.
Multiple pregnancies after IVF
For assisted reproduction is common for multiple pregnancy (more common than in the case of natural pregnancy). But the twins are attached considerable risks for both the mother and the embryo.
After IVF is about 2% risk of ectopic pregnancy compared with 1% risk in the general population. The risk increases in women with damaged fallopian tubes partially as inflammation.