oocyte cryopreservation

Motherhood at the age of 40

Trying for a child after 40 years of age is a growing trend in today’s society and not only in Spain, but in Europe, too. Professional, personal and social reasons have joined together in making women decide to put motherhood off for longer and longer. But nature takes its course and each woman is only fertile for a certain period of time and this can affect her chances of getting pregnant. In the light of such a common situation, what do we need to take into account? What is the key role played by experts in health and fertility?
Since 2002, the average age at which a woman has her first child has increased two years. Whilst in 2002 the average age was 29, the Spanish National Statistics Institute’s most recent figures show that it has now gone up to 31 and that there is an upward trend.  This increase in the age at which women have their first child is similar to the increase in other European Union countries where an increase of around two years has been registered. Figures show that women are waiting until they are near their 40s and even older before trying to get pregnant. […]

2016-08-04T13:13:05+02:0031 de March de 2016|0 Comments

Vitrification: the cold revolution

Vitrification is generally associated with delaying maternity. It involves preserving eggs at low temperatures so that they may be used in the future. This is, in itself, astounding since it enables gametes to be preserved by means of advanced and ultra-rapid cell freezing so that they may be used sometime in the future. The uses to which this technique may be put are so varied and numerous and have changed the work environment in the most prestigious of fertility clinics to such an extent that experts have no doubts about referring to vitrification as a ‘revolutionary’ procedure.
“We could say that cryopreservation is currently the most important aspect of any assisted reproduction clinic” assures Dr Jorge Ten, head of the Reproductive Biology Operational Unit at Instituto Bernabeu in Alicante. In the words of this expert, this technique “has changed enormously over the last 6 to 8 years”. Vitrification was initially carried out using “slow freezing techniques which caused cell damage” in the oocyte. This cell, “in the case of women, is the largest in the human body and has the greatest content in water. Therefore, when frozen, it produced poorer results due to the formation of ice crystals which damaged its structure”. The ice crystals which formed as a result of the aforementioned slow freezing and the high water content in the cell meant that survival rates were “between 20 and 30%. Almost no oocytes survived”. […]

2016-08-04T13:54:31+02:0028 de October de 2015|0 Comments

Intentionally delaying motherhood: oocyte vitrification

Although egg cryopreservation was introduced more than 20 years ago, the results so far have been dispiriting, but in recent times there have been remarkable advances and improvements in the field of cryobiology which have made its acceptance as a routine technique possible.

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2016-09-22T12:21:47+02:001 de May de 2012|4 Comments
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