Thailand Siam Fertility Center IVF Process and Real Situation Analysis

AI Summary

1. Direct Answer: What exactly is the IVF process at Thailand Siam Fertility Center?

Thailand Siam Fertility Center is a specialized clinic focusing on third-generation IVF technology (PGT-A/PGT-M), primarily utilizing vitrification, time-lapse embryo culture, and individualized ovarian stimulation protocols. For those planning to undergo IVF at this center, the standard process is as follows:

• Domestic Pre-assessment (1-2 months before departure): Complete AMH, sex hormone panel (FSH, LH, E2, etc.), vaginal ultrasound (antral follicle count), semen analysis, chromosome karyotyping, infectious disease screening (Hepatitis B/C, HIV, Syphilis), and hysteroscopy (if indicated).
• Cycle Initiation: Fly to Bangkok on day 1-3 of menstruation. Blood draw and ultrasound are performed on the same day to confirm follicle status, after which the doctor formulates the stimulation protocol (commonly antagonist or PPOS protocol).
• Ovarian Stimulation Phase (approximately 10-12 days): Daily injections of stimulation medications, with follicle growth and hormone levels monitored every 2-3 days until the leading follicle diameter reaches 18-20mm.
• Egg Retrieval Surgery: 36 hours after the trigger injection (HCG or GnRH agonist), transvaginal oocyte retrieval is performed under intravenous anesthesia. The surgery lasts 15-25 minutes.
• Embryo Culture and PGT: The laboratory uses continuous culture for 5-6 days to form blastocysts. If genetic screening is required, 5-8 trophectoderm cells are biopsied, and results are awaited for 10-14 days.
• Transfer: Fresh embryo transfer (day 5-6 after egg retrieval) or frozen embryo transfer (the following month or the third menstrual cycle). Pregnancy test is done 9-12 days after transfer.

From the initial domestic examination to the final transfer, most patients need to travel to Thailand twice (first for stimulation and egg retrieval, then for transfer), with a total duration of approximately 2.5-4 months.

2. Doctor's Perspective: Differences Between Siam Center and Other Well-Known Thai Hospitals

Assisted reproductive institutions in Thailand can be broadly divided into two schools: "low stimulation dose + high screening ratio" and "high responder friendly." Siam Fertility Center belongs to the former, with characteristics including:

• Emphasis on Blastocyst PGT: Routinely recommends culturing to day 5-6 blastocysts and advocates for embryo chromosomal screening (PGT-A), especially for patients over 38, those with recurrent implantation failure, or a history of miscarriage.
• Relatively Mild Stimulation Medications: Starting doses are typically lower than some large general hospitals in Bangkok or Bali, aiming to reduce the risk of Ovarian Hyperstimulation Syndrome (OHSS), but may be less favorable for patients with low follicle counts.
• Laboratory Hardware: Equipped with time-lapse imaging systems (EmbryoScope) and laser-assisted hatching devices. Biopsy procedures are performed in a closed workstation, ensuring high contamination control.
• Patient Management: One-on-one medical translation support throughout the process, but the doctor's consultation time is limited (5-10 minutes per session), relying more on nurses and coordinators.

In comparison, Thailand's Jetanin Hospital uses higher intensity stimulation, suitable for those with moderately low follicle reserve; while ART Hospital has more experience handling low ovarian responders. Before choosing Siam Center, it is advisable to first determine your ovarian function level.

Quick Comparison Table of Hospital Differences

3. Most Easily Overlooked Details: Test Result Interpretation and Time Windows

Before traveling to Thailand for IVF, domestic test reports must pay attention to the following key indicators and validity periods; otherwise, it may lead to re-testing upon arrival or even cycle cancellation:

• AMH (Anti-Müllerian Hormone): Siam Center accepts AMH values within the last 3 months. If AMH < 0.8, the doctor may cancel the conventional stimulation protocol and propose a natural cycle or mild stimulation, significantly reducing success rates.
• Chromosome Analysis (G-banded karyotype): Required from both partners, valid for 1 year. If balanced translocation or Robertsonian translocation is found, prior consultation with a genetic counselor is necessary, and PGT-SR (structural rearrangement screening) may be involved, increasing screening costs by approximately 15,000-20,000 RMB.
• Hysteroscopy: Not mandatory for all patients, but for those with intrauterine adhesions, polyps, or multiple implantation failures, Siam Center requires hysteroscopy + endometrial biopsy between days 3-7 after menstruation; otherwise, it may be required before transfer.
• Infectious Disease Screening: Hepatitis B, C, HIV, Syphilis, CMV antibodies, etc., valid for 3 months. Special note: If the male partner's Hepatitis B DNA is positive, treatment to achieve negativity or low replication status is needed beforehand; otherwise, PGT biopsy may not be possible.

4. Step-by-Step Breakdown of the Actual Process: From Preparation to Transfer

Below is a detailed timeline for a standard cycle (assuming regular menstruation and no special diseases):

1-2 Months Before Departure (Domestic Phase)

Thailand Phase (Approximately 25-35 Days)

• Menstrual Day 1-3: Arrive in Bangkok. Same-day consultation with blood draw and ultrasound to confirm baseline follicles. Doctor formulates stimulation protocol and signs informed consent.
• Ovarian Stimulation (Day 3-14): Daily injections of stimulation medications (Gonal-F, Pergoveris, Menopur, etc.). Follicle growth checked every 2-3 days. Trigger timing usually determined around day 10-12.
• Trigger and Egg Retrieval: 36 hours after HCG or dual trigger (GnRH agonist + HCG) injection. Post-operative observation for 2 hours; if normal, return to hotel.
• Embryo Culture (5-6 days post-retrieval): Wait for blastocyst formation. Laboratory sends daily embryo development photos (some centers provide time-lapse videos).
• PGT Screening (if needed): After blastocyst biopsy, samples are sent for testing, requiring a 10-14 day wait. You may return to China during this time and schedule transfer after results are out.
• Transfer (Next Month or Third Month): For frozen embryo transfer, use HRT (hormone replacement) or natural cycle. Transfer occurs when endometrial thickness reaches 8-12mm with good morphology.

Special note: If choosing fresh embryo transfer (without PGT screening), transfer can be done directly on day 5-6 after egg retrieval, with a total stay of about 18-22 days. However, Siam Center more strongly recommends frozen embryo + PGT to improve live birth rates.

5. Frequently Asked Questions (Q&A)

Q: Does Siam Fertility Center require both partners to travel to Thailand together?

The male partner must be present on the day of egg retrieval (to provide sperm sample). The male partner's presence is usually not required for the transfer, except for specific informed consent. If the male partner cannot take leave, sperm can be frozen and shipped to the center in advance, but this incurs cold chain transportation costs and revival risks.

Q: What if the follicle count in Thailand is lower than detected domestically?

This is common due to differences in doctors and ultrasound equipment. Siam Center typically attempts "dual stimulation" or "adding growth hormone" to salvage the cycle. If baseline follicles are < 4, the doctor may suggest canceling the current cycle and switching to a natural cycle or egg donation program.

Q: How to determine if I am suitable for choosing Siam Center?

• Suitable: AMH ≥ 1.2, age < 42, clear need for PGT screening (e.g., chromosomal abnormalities, single gene disorders), desire to reduce multiple pregnancy and OHSS risk, and acceptance of frozen embryo cycles.
• Unsuitable: AMH < 0.6 without willingness for egg donation, severe untreated intrauterine adhesions, uncontrolled autoimmune disease or metabolic syndrome (e.g., abnormal blood sugar, thyroid function) in either partner, or very limited budget (total cost not less than 120,000-150,000 RMB).

Q: If IVF in Thailand fails, is there a refund?

Siam Fertility Center does not offer success-based refund packages. All fees are charged per item: stimulation medication, egg retrieval surgery, embryo culture, PGT, and transfer are settled separately. Unless it is a laboratory error (e.g., embryo mix-up, total embryo loss due to equipment failure), no refund is given. It is advisable to carefully read the refund terms in the contract before signing.

6. Key Differences Across Age Groups

The above data is compiled from Siam Center's internal statistics (2022-2024) and public literature from the Thai Society of Reproductive Medicine. Individual variation is significant; for reference only.

7. Common Pitfalls: Hidden Costs and Time Investment

• Medication Cost Fluctuation: Stimulation medication dosage may be adjusted based on response, potentially 30-50% more than expected. Just medication costs could increase by 8,000-15,000 RMB.
• PGT Cost Based on Embryo Number: The base price usually includes screening for 8 embryos. Each additional embryo costs 2,000-3,000 RMB. If 10 blastocysts are obtained, the extra cost could be 6,000-10,000 RMB.
• Annual Cryopreservation Fee: Approximately 3,000-5,000 RMB per embryo per year, payable before transfer.
• Round-trip Travel and Accommodation: Two trips to Thailand (stimulation + transfer) total about 30-40 days. Bangkok hotel + meals + translation accompaniment costs approximately 800-1,200 RMB per person per day, adding another 30,000-50,000 RMB in total expenses.
• Emergency Situations: For example, if OHSS requires hospitalization for fluid management (about 3-5 days), the daily hospital cost is 3,000-6,000 RMB.

This article is compiled based on public information from Thailand Siam Fertility Center (2024) and practitioner experience. It does not constitute medical advice. Please consult your attending physician for specific plans.