inviTRA Egg and sperm donation magazine
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What is it?
Law in the UK
Pregnancy with donor eggs
Egg donation & surrogacy
Becoming an egg donor
What is it?
IUI with donor sperm
Options for lesbian couples
Becoming a sperm donor
Definition and options
In vitro fertilization
Intracytoplasmic sperm injection
Preimplantation genetic diagnosis
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Embryo transfer in Croatia
In Croatia, the Law allows for a maximum of 2 embryos per transfer, although 3-embryo transfers are possible in exceptional cases.
Embryo donation in the USA
Embryo adoption is an affordable reproductive choice that allows many people achieve parenthood in spite of poor egg and/or sperm quality or no gamete production at all.
Quality of the eggs
Using several techniques the quality of the eggs can be found out to know the reproductive potential of a woman, and if needed, which assisted reproduction technique to apply.
Preparation of the endometrium
The endometrium has to be prepared prior to the implementation of an assisted reproduction treatment. Therapeutical drugs are used to increase the thickness of the endometrium so as to facilitate embryo implantation.
Embryo thawing is a reliable technique which allow embryos to be retrieved in the same stage as they were vitrified, regardless of how much time has passed.
Embryoscope is an incubation system that allows taking images of the embryo at any moment. This way, the complete development of the embryo can be observed without any need to vary the conditions in which it’s immersed.
Natural cycle of embryo transfer
Currently, there is no clear evidence to recommend a specific protocol for endometrial preparation after embryo transfer, since many different factors which vary on each woman take part in the process.
Interview: Embryo implantation
Dr Manuel Muñoz, from Alicante’s IVI clinic, tells us about problems, treatments, or investigations into embryo implantation.
Some assisted reproductive techniques, such as in vitro fertilisation (IVF) or ICSI, perform egg fertilisation outside the woman's body. For this reason, embryo culture is necessary up to the day in which the...
Embryo culture up to blastocyst stage
Blastocyst is the stage in which embryo implantation within the uterus occurs naturally. To reach this stage, the embryo is cultured up to day 5-6 by means of a sequential culture system.
Predicting IVF success
A new method may enable fertility patients to predict the chances for success with IVF. It is based on clinical data from previous IVF failure and is considered as a useful tool for predicting the chances for...
Classification of embryos according to their quality
Embryos can be classified in 4 categories –from A to D– ranging from best quality to least developed embryos. This classification is mainly visual and rather subjective, but there are also several studies to...
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