Factors that determine the success of your IVF procedure

IVF or In Vitro Fertilization is a process wherein an egg is fertilized by a sperm in a laboratory dish to form the embryo (baby's first cell) which after growth in artificial medium in the lab is transferred into the uterus of women, In general, a blood sample is collected to determine whether you're pregnant or not about 10-14 days after the eggs are retrieved.

Coming to the success of the procedure, a number of factors are at play and these are:

The age at which you get pregnant

A factor that plays a role in influencing your chances of experiencing success in your IVF procedure is the age at which you opt for this procedure. The lower your age, the chances that you may get pregnant and deliver a healthy child using your own eggs witness an increase. On the other hand, if you're aged 41 and above, or your egg reserve is very low donor eggs are the most preferred option as they help to increase your prospects of meeting a success.

Lifestyle habits

Certain lifestyle factors can significantly affect your prospects of getting pregnant through this route. Smoking can reduce your prospect of success using this procedure by about 50%. It can cause you to have lesser number of eggs retrieved during the procedure while increasing instances of miscarriages. Likewise, obesity, alcohol use, consumption of excessive caffeine and drugs can adversely affect your chances of getting pregnant using IVF.

Cause of Infertility

If your supply of eggs is normal, success rate using IVF is high. Women who suffer from the problem of endometriosis experience lesser chances of getting pregnant than women who have unexplained fertility.

Reproductive history

IVF success rate chances are higher if you've delivered a baby previously using IVF.

Embryo status

Embryos that are better developed with good grade stand a higher chance of experiencing success than less developed embryos. More importantly, not every embryo is able to survive the development process.



What are the factors that determine the success of your IVF procedure?

Egg Freezing, which is also known as mature oocyte cryopreservation, refers to the method through which reproductive potential is restored among women. Eggs get harvested from the ovaries, frozen and in an unfertilized manner and are stored for purpose of using them later on. The egg freezing procedure is recommended for those women, who would like to delay conceiving baby due to various kinds of reasons.

Before the freezing of eggs, it is important to first retrieve the eggs. Let us look at how the eggs are retrieved, followed by the procedure of egg freezing through two different ways.

Retrieval of Egg

Egg Retrieval takes place just like it is done in case of in vitro fertilization (IVF). Women would need to be put under medication for hormones or through injections, which shall lead to the stimulation of ovaries, leading to more eggs getting matured. After this women would receive the necessary medication to stimulate ovulation and then the extraction of eggs takes place through the use of a needle. Specialists perform this whole procedure by putting women under the effect of anesthesia and are also guided by ultrasounds. Once the extraction is completed, the freezing takes place.

There are two different techniques involved in the egg freezing process. They include:

Slow Egg Freezing Method

A substance called cryoprotectant is used in order to protect the biological tissues from getting damaged out of freezing. This slow freezing method of getting eggs freezed relies on low initial concentrations of crytoprotectant. The cryoprotectant in low concentration is introduced when the egg is at a relatively warm temperature and still continues to experience the usual functions of a living cell. Then the cryptoprotectant would spread all throughtout thus fill the egg, hence replacing most of the water inside the egg. The egg is then inserted into a small container made of plastic and ultimately get placed inside a cooling chamber. The lowering of temperature, to around -6 degree centigrade, takes place through injecting very tiny amounts of liquid nitrogen into the cooling chamber. The cooling process is controlled by a computer.

The main purpose of these techniques is to avoid ice crystals from getting formed in the egg. During the spreading of the cryoprotectant, if the ice crystals are still present, they can cause damage to the egg and hence the egg may not survive the process of thawing. Then the temperature is lowered further to around -32 degree centigrade. By this time, the egg s metabolic rate become slow. The container where the egg was placed, is then dipped inside the liquid nitrogen, forming a solid.

Rapid Egg Freezing Method or Vitrification

At the time of rapid freezing method, there is high concentration of initial cryoprotectant whereas the cell remains at room temperature. The egg is unable to stay for long in this temperature and thus gets poured immediately onto the liquid nitrogen. Cryoprotectant spreads at a rapid rate so as to avoid ice-crystal from getting damaged. Vitrification is a very new method for freeing eggs. Recent research has shown that vitrification of eggs largely improves the possibility for survival after thawing and the rates of pregnancy.

Different Techniques That Can Be Used For Egg Freezing!

In vitro fertilization (IVF) is a process of fertilization in which eggs (ova) from a woman's ovary are removed. They are combined with sperm outside the body in a laboratory procedure, and then the fertilized egg (zygote) is transferred to the same or another woman s uterus for a successful pregnancy.

IVF is one of the several assisted reproductive techniques (ART) used to help infertile couples to conceive a child.

Causes of Infertility

Blocked fallopian tubes
Hormonal imbalance
Endometriosis
Women with ovulation disorder
Uterine fibroids
In the man, low sperm count or poor quality sperm
Genetic disorder
Procedures
Two procedures are done to gain access to ovaries

It involves inserting the needle through the vagina (transvaginally). With the help of an ultrasound machine, the physician guides the needle to the location of the ovaries
In the other procedure, called laparoscopy, a small thin tube with a viewing lens is inserted through an incision in the navel. This lets physician to see inside the patient, and locate the ovaries.
Method
Without additional techniques, the chances of pregnancy would be extremely small. The additional techniques used in IVF include-

Ovarian hyperstimulation- Stimulation to induce development of multiple follicles of the ovaries.
Final maturation induction- Induction of final oocyte maturation is performed, generally by an injection of human chorionic gonadotropin (HCG), when the ovarian follicles have reached a certain degree of development. This is known as the "trigger shot  
Egg and sperm preparation- Semen is prepared for fertilization by removing inactive cells and seminal fluid in a process called sperm washing. An oocyte selection may be performed prior to fertilization to select eggs with optimal chances of successful pregnancy. 
Co-incubation- Eggs are removed from the woman and placed in one of the fallopian tubes, along with the man's sperm. This allows fertilization to take place inside the woman's body. Therefore, this variation is actually an in vivo fertilization, not in vitro.
Embryo culture- The main durations of embryo culture are until cleavage stage (day two to four after co-incubation) or the blastocyst stage (day five or six after co-incubation)
Embryo transfer- The number to be transferred depends on the number available, the age of the woman and other health and diagnostic factors. Embryos are transferred to the patient's uterus through a thin, plastic catheter, which goes through her vagina and cervix.
Aftercare
After the IVF procedure is performed the woman can resume normal activities. A pregnancy test can be done approximately 12-14 days later to determine if the procedure was successful.

Risks

Multiple pregnancies
Ectopic pregnancy
Ovarian rupture, bleeding
Infections
Complications of anesthesia

In Vitro Fertilization - Quick Facts!

Intracytoplasmic Sperm Injection i.e. ICSI is different from conventional IVF i.e. In Vitro Fertilization because a single sperm is selected by the embryologist to be injected by a needle into the egg rather than a dish with many sperms placed near the egg so that the fastest swimming sperm enters it. Once the sperm is injected directly into the egg, it fertilizes, after which the embryo is transferred into the womb or uterus. 

Your doctor might recommend ICSI treatment for you if you have an extremely low sperm count resulting in infertility or other medical sperm conditions such as poor motility or poor morphology. It may also be suggested if prior attempts at IVF procedures have failed in fertilizing the egg or the fertilization rate is extremely low. You must also consider ICSI treatment if you resort to embryo testing or if the sperm needs to be collected from the epididymis or testicles surgically. 

However, you must keep in mind that if your partner has a genetic problem resulting in low sperm count, it could be passed on to your child, if you decide to use your husband's sperm for this process.

Success Rates of ICSI:
The success rate of ICSI treatment depends on your age and your fertility problem. Your eggs are healthier when you are young and as you age, chances are that they will become less healthy.
1. 35 per cent if you are under 35 years of age
2. 29 per cent if you are between 35 to 37 years of age
3. 21 per cent if you are between 38 to 39 years of age
4. 14 per cent if you are between 40 to 42 years of age
5. 6 per cent if you are between 43 to 44 years of age
6. 5 per cent if you are above 44 years of age

Advantages of ICSI Treatment:
Intracytoplasmic Sperm Injection gives you a chance to conceive a child genetically when most other options are exhausted. Males may be unable to ejaculate on the day the eggs are collected due to anxiety. ICSI proves to be advantageous because sperm may also be surgically extracted for this process. It is extremely helpful for those couples who suffer from unexplained infertility. However, one of the most important factors is that ICSI treatment does not affect your child's physical or mental health.

Intracytoplasmic Sperm Injection (ICSI)

Women undergo menopause in their 40s and this is primarily known as the age after which they can't bear children in their wombs any more. The ability to develop and maintain a healthy pregnancy wanes as a woman crosses the age of 30, which according to research is the optimal time for a woman to become a mother.

The body undergoes changes as it gets older and women slowly start losing the perfect conditions for pregnancy. However, with the rise of the IVF treatment for infertility, a great number of people are choosing to embrace parenthood at a relatively advanced age. However, the question is, can the same IVF treatment prove effective for a woman after her menopause?

The answer is yes. There have been several instances where a woman past menopause has been implanted with a fertilized egg and has been able to conceive a healthy offspring from the same. However, such an IVF treatment is much more complex and can require a lot of external hormonal treatments on the side as well.

How can IVF help menopausal women?
Women, who have gone into menopause more than 6 months ago, require additional care to achieve pregnancy through IVF. The uterus is usually shrunken in such people and the endometrial lining also develops a resistance to estrogen. Several cycles of estrogen treatment are needed for such women to achieve a healthy pregnancy.

Most doctors suggest at least a couple of months of estrogen and progesterone treatment prior to taking the actual IVF treatment. However, there is no guarantee that the same will be effective in every case.

By any chance, if the menopausal woman chose to store her eggs prior to her menopause, she can get those eggs fertilized and implanted after menopause, using the IVF method, in order to achieve a healthy pregnancy. Through, this procedure, the woman can not only become pregnant after menopause but can also ensure that she is the biological mother of the child who would be born.

At any rate, it is best to undergo the IVF treatment before menopause, as this improves the chances of conceiving. The hormonal treatments are often easier and most women can completely forego the progesterone and estrogen supplementation in such a case. This will not only reduce the time required to complete the treatment but will also significantly reduce the cost that the parents have to bear.

Can IVF Help Menopausal Women Get Pregnant?

The fallopian tubes are not mere passages for the egg to travel from the ovaries to the uterus. It is here that conception occurs and hence healthy fallopian tubes are essential for the fertilization of an egg. 

Damaged fallopian tubes are the most common cause of infertility. This damage can fall under three categories. 

 Blocked fallopian tubes
 One blocked and one open fallopian tube
 Tubal scarring

The third is usually an effect of pelvic infections or natural healing after a pelvic surgery. Sadly, in most cases, this condition is discovered only after infertility has been diagnosed. Other causes of fallopian tubal scarring include:

 Stds such as chlamydia trachomatis and neisseria gonorrhea
 Adhesions caused by ruptured ovarian cysts
 Appendicitis
 Peritonitis
 A history of ectopic pregnancies

Fallopian tubal scarring has no recognizable symptoms. Chronic pelvic pain is the only known symptom of this damage and that too can be seen only in severe cases of tubal scarring. On diagnosing infertility, your doctor will perform one of these tests to determine the condition of your fallopian tubes.

 Hysterosalpingogram: this is a type of x-ray. Your doctor will open the vagina with a speculum and inject a liquid into the uterus with the help of a catheter. If the liquid does not pass through the fallopian tubes, it is said to be blocked. This however, does not say much about tubal scarring.
 Laparoscopy: a small incision is made below the belly button and a slim, flexible tube with a camera is passed through the incision. This gives your doctor a clear view of the condition of your fallopian tubes. A laparoscopy can also be used to rule out other causes of infertility such as endometriosis or blocked fallopian tubes. 

Treatment for infertility caused by tubal scarring is of two types:

 Surgery: this is suggested in cases where tubal scarring is minimal. Depending on the intensity and placement of scar tissue, your doctor may decide to perform one of many types of surgeries. He may choose to remove the scarred section of the fallopian tube, create a new opening (in case of blockages) or rebuild the damaged edges of the fallopian tubes.
 In vitro fertilization (ivf): women with badly scarred fallopian tubes usually have poor chances of conceiving naturally. Hence, ivf is the preferred treatment route. However, your doctor may still advise you to undergo surgery and remove the damaged tubes prior to ivf to prevent the tubes from filling with fluid.

Tubal Scarring and Infertility

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