IVF vs Test Tube Baby: Are They The Same?

In Vitro Fertilization (IVF) and "test tube baby" are often used interchangeably, and the truth is, they essentially refer to the same assisted reproductive technology. The term "test tube baby" emerged early in the history of IVF and, while still used colloquially, it can be misleading. In Chennai, many couples seeking fertility treatment are understandably confused by the terminology. This blog post will clarify the process of IVF, explain why the term "test tube baby" is outdated, and provide a clear understanding of what to expect from IVF treatment.

What Is IVF and How Does It Work?

IVF is a complex series of procedures used to help with fertility or prevent genetic problems and assist with the conception of a child. During IVF, mature eggs are collected (retrieved) from your ovaries and fertilized by sperm in a lab. Then the fertilized egg (embryo) or eggs are implanted in your uterus. One full cycle of IVF takes about three weeks.

The IVF process involves several key steps:

1. Ovarian Stimulation: The woman takes fertility medications, often gonadotropins, to stimulate the ovaries to produce multiple eggs rather than the single egg that typically develops in a menstrual cycle. Regular monitoring with ultrasound and blood tests tracks the development of follicles (fluid-filled sacs containing the eggs).

2. Egg Retrieval: Once the follicles are mature, a procedure called egg retrieval is performed. Usually under sedation or anaesthesia, a transvaginal ultrasound aspiration is used. A thin needle is guided through the vagina into the ovaries to retrieve the eggs from the follicles.

3. Fertilization: The retrieved eggs are then fertilized with sperm in the lab. This can be done in one of two ways: traditional insemination, where sperm and eggs are mixed together in a petri dish, or intracytoplasmic sperm injection (ICSI), where a single sperm is injected directly into each mature egg. ICSI is particularly useful when there are male factor infertility issues. As a fertility specialist with direct IVF lab expertise, I personally participate in selecting and grading embryos under magnification.

4. Embryo Culture: After fertilization, the eggs (now embryos) are monitored in the lab for several days to ensure proper development. Embryos are graded based on their appearance and rate of cell division.

5. Embryo Transfer: One or more of the best-quality embryos are then transferred into the woman's uterus. This is done using a thin catheter inserted through the cervix. The number of embryos transferred depends on factors such as the woman's age and embryo quality, with the goal of maximizing pregnancy rates while minimizing the risk of multiple pregnancies.

6. Luteal Phase Support: After the embryo transfer, progesterone supplementation is typically given to support the uterine lining and increase the chances of implantation.

Who Needs IVF?

IVF is recommended for individuals and couples facing various fertility challenges. In my clinical experience, many patients have tried other treatments without success and turn to IVF as a more advanced option. Common reasons for considering IVF include:

• Fallopian Tube Damage or Blockage: IVF bypasses the fallopian tubes, making it a viable option for women with damaged or blocked tubes.
• Ovulation Disorders: Conditions like polycystic ovary syndrome (PCOS) can cause infrequent or absent ovulation. IVF can help by controlling the ovulation process. Learn more about PCOS treatment.
• Endometriosis: This condition can affect the function of the ovaries, uterus, and fallopian tubes. IVF can improve the chances of pregnancy for women with endometriosis. For more information, see our guide on endometriosis treatment.
• Male Factor Infertility: Low sperm count, poor sperm motility, or abnormal sperm morphology can be overcome with IVF, especially when combined with ICSI.
• Unexplained Infertility: Sometimes, the cause of infertility cannot be identified. In such cases, IVF may be recommended after other treatments have been unsuccessful.
• Genetic Disorders: Preimplantation genetic testing (PGT) can be done on embryos created through IVF to screen for specific genetic disorders before transfer. This is useful for couples who are carriers of genetic diseases.
• Age-Related Infertility: As women age, the quality and quantity of their eggs decline. IVF can help older women conceive using their own eggs or donor eggs.
• Fertility Preservation: Women who need to undergo medical treatments like chemotherapy, which can harm their fertility, may choose to freeze their eggs through fertility preservation for future use with IVF.

IVF Step-by-Step Process

The IVF process is a coordinated effort between the patient, the fertility specialist, and the IVF laboratory. Here's a more detailed look at each step:

1. Initial Consultation and Evaluation: The process begins with a thorough evaluation of both partners, including a medical history, physical examination, and fertility testing. This may include blood tests to assess hormone levels, semen analysis for the male partner, and imaging tests like ultrasound to evaluate the uterus and ovaries.

2. Ovarian Stimulation Protocol: Based on the evaluation, a personalized ovarian stimulation protocol is developed. This typically involves daily injections of fertility medications to stimulate the ovaries. The protocol may be a long protocol (starting in the previous menstrual cycle) or a short protocol (starting at the beginning of the cycle).

3. Monitoring: During ovarian stimulation, regular monitoring appointments are scheduled to track the development of follicles. These appointments usually involve transvaginal ultrasounds and blood tests to measure estrogen levels. The medications are adjusted as needed to optimize egg development.

4. Trigger Shot: Once the follicles reach the appropriate size, a "trigger shot" of human chorionic gonadotropin (hCG) is administered. This triggers the final maturation of the eggs and prepares them for retrieval.

5. Egg Retrieval: Approximately 36 hours after the trigger shot, the egg retrieval procedure is performed.

6. Fertilization and Embryo Culture: After retrieval, the eggs are fertilized with sperm using either traditional insemination or ICSI. The fertilized eggs are then cultured in the lab under controlled conditions.

7. Embryo Selection: Embryos are evaluated daily and graded based on their morphology (appearance) and rate of cell division. The best-quality embryos are selected for transfer. AI-based tools are increasingly being used to enhance embryo selection, with studies showing promising diagnostic performance in predicting pregnancy outcomes.

8. Embryo Transfer: The embryo transfer procedure is typically performed 3 to 5 days after egg retrieval. A catheter is used to gently place the embryo(s) into the uterus. The procedure is usually painless and does not require anaesthesia.

9. Pregnancy Test: About two weeks after the embryo transfer, a blood test is done to determine if pregnancy has occurred. If the test is positive, regular monitoring with ultrasound is scheduled to confirm a healthy pregnancy.

Success Rates of IVF

IVF success rates vary depending on several factors, including the woman's age, the cause of infertility, the quality of the eggs and sperm, and the clinic's expertise. According to data, women under 35 generally have the highest success rates, while success rates decline with increasing age.

Note: These are approximate success rates and can vary.

In my practice, we strive for realistic and evidence-based success rates. Our IVF success rate is around 65%, reflecting our commitment to providing high-quality care. It's important to remember that these are just averages, and individual success rates can vary.

IVF Cost in Chennai

The cost of IVF in Chennai can vary depending on the clinic, the specific procedures involved, and the medications required. On average, a single IVF cycle can range from ₹1,50,000 to ₹2,50,000. This cost typically includes:

• Initial consultation and evaluation
• Ovarian stimulation medications
• Monitoring appointments (ultrasounds and blood tests)
• Egg retrieval procedure
• Fertilization and embryo culture
• Embryo transfer procedure
• Luteal phase support medications

Additional costs may include ICSI (if needed), preimplantation genetic testing (PGT), and frozen embryo storage. Some clinics offer package deals or financing options to help make IVF more affordable.

Risks and Side Effects

While IVF is generally safe, there are some potential risks and side effects to be aware of:

• Multiple Pregnancies: Transferring more than one embryo increases the risk of twins or triplets, which can lead to complications such as preterm birth and low birth weight.
• Ovarian Hyperstimulation Syndrome (OHSS): This condition can occur when the ovaries become swollen and painful due to the fertility medications. In mild cases, symptoms include abdominal pain, bloating, and nausea. Severe cases can lead to fluid accumulation in the abdomen and chest, blood clots, and kidney problems.
• Ectopic Pregnancy: In rare cases, the embryo may implant outside the uterus, usually in the fallopian tube. This is a life-threatening condition that requires immediate medical attention.
• Miscarriage: The risk of miscarriage is slightly higher in IVF pregnancies compared to natural pregnancies, particularly in older women.
• Complications from Egg Retrieval: The egg retrieval procedure carries a small risk of bleeding, infection, and damage to the bowel, bladder, or blood vessels.

What to Expect After IVF

After the embryo transfer, it's important to follow your doctor's instructions carefully. This may include taking progesterone supplements, avoiding strenuous activity, and attending follow-up appointments for monitoring.

Some women experience mild cramping or spotting after the embryo transfer, which is usually normal. It's important to avoid taking any medications without consulting your doctor.

About two weeks after the embryo transfer, a pregnancy test is done to determine if pregnancy has occurred. If the test is positive, regular monitoring with ultrasound is scheduled to confirm a healthy pregnancy.

Even after a positive pregnancy test, it's important to continue following your doctor's instructions and attending all scheduled appointments.

When to Seek Professional Help

If you have been trying to conceive for a year or more (or six months if you are over 35) without success, it may be time to seek professional help from a fertility specialist. Other reasons to seek help include:

• Irregular or absent periods
• Known fertility problems, such as PCOS or endometriosis
• Male factor infertility
• History of recurrent miscarriages
• Need for genetic testing or screening

A fertility specialist can perform a thorough evaluation to identify the cause of infertility and recommend the most appropriate treatment options. For personalised guidance, book a consultation with Dr. Rukkayal Fathima.