Managing endometrioma to optimize future fertility ; summary by dr maria rafi

 

 Endometriosis and Endometrioma: Understanding Diagnosis and Impact on Fertility

📌 Introduction

• Endometriosis is a chronic condition affecting 10% of women of reproductive age.

• Characterized by endometrial glandular epithelium and stromal implants in extra-uterine locations.

• Prevalence:

  • Found in 50% of women with pain and infertility.

  • Up to 80% in women with chronic pelvic pain.

• Histopathological diagnosis requires at least two of the following:

  • 🏷️ Endometrial epithelium

  • 🏷️ Endometrial glands

  • 🏷️ Endometrial stroma

  • 🏷️ Hemosiderin-laden macrophages

• Three forms of pelvic endometriosis:

  • 🔹 Superficial implants

  • 🔹 Endometriomas

  • 🔹 Deep infiltrating endometriosis

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🔬 Endometrioma: Diagnosis and Histology

🩺 2.1 Diagnosis of Endometrioma

• Primary diagnosis through ultrasound:

  • ✅ Unilocular or multilocular ovarian cyst

  • ✅ Internal homogenous low-level echogenicity

  • ✅ No solid component or internal vascularity

• Definitive diagnosis:

  • Requires laparoscopy and histological sampling.

• Characteristics:

  • Invagination of the ovarian cortex with active endometriotic implants.

  • Neovascularization present on the surface.

• Histological Findings:

  • 📌 Presence of a fibrotic capsule.

  • 📌 Endometrial tissue on up to 60% of the internal cyst wall.

  • 📌 Tissue penetration into the cyst wall (average 0.6 mm, range 0.1–2.0 mm).

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⚠️ Endometrioma and Ovarian Reserve & Function

🏥 2.2 Impact on Fertility

• Infertility is a common complication of moderate to severe endometriosis.

• Statistics:

  • 📊 Endometriomas affect 17–44% of infertile women.

  • 📉 Study by Horikawa et al. (2008):

    • Ovulation rate in affected ovaries dropped from 50% to 34.4%.

    • Further reduction to 16.9% after ovarian cystectomy.

🔥 "Burnout" Hypothesis & Ovarian Reserve

• Endometriomas cause diminished ovarian reserve due to:

  • ❗ Direct impact of the cyst.

  • ❗ Surgical interventions for cyst removal.

  • ❗ Accelerated decline of Anti-Mullerian Hormone (AMH) levels.

  • ❗ Increased fibrosis and loss of cortical stroma.

  • ❗ Upregulated follicular recruitment leading to early follicular depletion.

• "Burnout" Hypothesis (Dolmans et al.):

  • 🔥 Chronic inflammation leads to fibrosis.

  • 🔥 Destruction of normal ovarian cortex.

  • 🔥 Increased follicular recruitment and atresia.

  • 🔥 Early depletion of ovarian follicles.

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🎧 Conservative Management

For some women, a conservative approach is a viable option. Factors to consider include: 

✅ Age ✅ Duration of infertility ✅ Ovarian reserve tests

 ✅ Previous ovarian surgery 

✅ Semen analysis of partner (important as up to 50% of ART couples have sperm abnormalities)

✨ Research Highlights:

• A study by Horikawa et al. showed reduced ovulation in ovaries affected by larger endometriomas (>4 cm).

• Another study from the University of Milan found no significant difference in ovulation rates in women with unilateral endometriomas, with 43% conceiving spontaneously.

• The Royal College of Obstetricians and Gynaecologists (RCOG) advises against surgical treatment for incidental endometriomas.

🌿 Best for:

• Younger women with unilateral, asymptomatic endometriomas

• No additional infertility risk factors

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🎉 Medical Management

Hormonal treatments like oral contraceptives, progestagens, and GnRH agonists can help manage pain and recurrence. However, they are NOT recommended for women trying to conceive as they: 

❌ Suppress ovulation

 ❌ Affect endometrial function

✅ They may be used in symptomatic women awaiting ART or surgery.

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🏥 Surgical Management

Surgery is a double-edged sword – it can improve fertility in some but may also reduce ovarian reserve.

✨ Key Insights:

• Up to 50% pregnancy rate after unilateral endometrioma surgery.

• Risk of ovarian reserve reduction, especially in repeated surgeries.

• Expert surgeons remove less healthy ovarian tissue, reducing damage.

⚖️ Surgical Techniques:

1. Cystectomy (Gold standard) 

2. ✅ Lower recurrence rate, higher pregnancy rate

3. Ablation or laser treatment 

4. ✅ Preserves ovarian function but higher recurrence risk

5. Combination technique (Partial cystectomy + Ablation) 

6. ✅ Promising alternative, maintains ovarian reserve

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💥 Recurrence & Repeated Surgery

📈 Recurrence rates after surgery: 16% – 50%

⚠️ Risks of Repeat Surgery:

• More harmful to ovarian reserve than primary surgery

• Does NOT improve fertility

• Only 24% cumulative pregnancy rate (CPR) after repeat surgery vs 70% after two IVF cycles post-primary surgery

🔍 Research-backed Recommendation:

✅ Women failing to conceive post-surgery should avoid repeat surgery ✅ Consider ART (IVF) as the next step

3.5 Assisted Reproductive Technology (ART) & Endometriosis 🤰🔬

• Prevalence & Impact 📊

  • Endometriosis affects 10–25% of patients requiring ART.
  • ART is effective for managing endometriosis-associated infertility.
  • 📝 ESHRE guidelines recommend ART, especially for cases with tubal factor 🚫🩸 or male infertility 🧬🧑‍⚕️.

• Negative Effects of Endometriosis on ART Outcomes ⚠️

  • Reduces oocyte quality 🥚❌ & quantity, fertilization, implantation, and pregnancy outcomes 🤰📉.
  • Women with endometriosis have a 24% lower live birth rate (LBR) 👶⬇️ compared to controls.
  • Severe disease (Stage III–IV) further lowers LBR by 30% 📉 and clinical pregnancy rate (CPR) by 40% ❌🤱.
  • 📊 Population-based study (347,185 ART cycles) found similar LBRs in isolated endometriosis but poorer outcomes when combined with male infertility 👨‍⚕️🚹 or reproductive tract issues.

• Key Considerations 🏥

  • Disease heterogeneity 🔄 necessitates accurate classification 📌 for proper reproductive outcome comparison.

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Surgery or ART in Women with Endometriomas & Subfertility? 

Current Recommendations ✅

• • 🕰️ Delay surgery when possible until reproductive goals are achieved 🎯.
  • Women with endometrioma require higher gonadotropin doses 💉⬆️ in ART.
  • ART before surgery is preferred in:
    • Women ≥35 years 🎂 with low ovarian reserve 🥚📉.
    • Bilateral endometriomas 🤷‍♀️ or asymptomatic endometriomas 🤔.
    • Endometriosis + male factor infertility 🚹🧬 or severe tubal disease 

• When Surgery is Indicated ⚕️🔪

  • Severe endometriosis-related pain 😖🔥.
  • Acute complications (e.g., large endometrioma 🩸, suspected torsion 🔄🩺).
  • Suspicion of ovarian cancer 🎗️🩺 based on sonographic features 🖥️.
  • Patients declining ART 🙅‍♀️ or unable to afford it 💰❌.

• 
  

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Fertility Preservation (Oocyte Cryopreservation) – What You Need to Know 🧬❄️

1️⃣ Understanding Fertility Preservation (FP)

• FP techniques allow women to conceive later using their own eggs 🥚.
• Oocyte vitrification (freezing eggs) has revolutionized FP 🔬.
• Used for both medical and non-medical reasons.

2️⃣ Who Needs Fertility Preservation?

• Young women diagnosed with cancer requiring gonadotoxic treatment 🎗️.
• Women with benign conditions affecting fertility (e.g., endometrioma) 🏥.
• Those undergoing ovarian surgery that may impact egg reserve 🏗️.
• Women delaying childbirth due to personal/career reasons ⏳.

3️⃣ FP in Endometriosis – The Challenge

• Lack of clinical consensus on who should consider FP 🤷‍♀️.
• Conversations around FP are often overlooked before ovarian surgery 😕.
• Women presenting with pain or an asymptomatic mass may not receive proper counseling 📉.

4️⃣ Why FP Should Be Considered Early?

• Time-sensitive process – Fertility declines with age ⏰.
• Endometriosis diagnosed at a younger age has a higher recurrence risk ⚠️.
• Better oocyte quality and yield in younger women 🥚🔝.
• Studies show higher success rates in future IVF cycles when eggs are frozen earlier 📊.

5️⃣ Key Study Findings

• Women under 35 years have a significantly higher live birth rate (LBR) 🎉.
• Women over 35 have a lower oocyte yield and LBR (28.4% vs. 61.9%) 📉.
• Non-surgical endometriosis patients have better success rates than those who undergo surgery before ART (70% vs. 50%) 🔄.

6️⃣ Oocyte vs. Embryo Vitrification – What's Better?

• Embryo vitrification requires sperm (partner or donor) 🧑‍⚕️🧪.
• Oocyte vitrification gives women reproductive autonomy 💪.
• Oocyte freezing is preferred in endometriosis FP cases 📌.

7️⃣ Evaluation of Ovarian Reserve – Why It Matters?

• Anti-Müllerian Hormone (AMH) and Antral Follicle Count (AFC) are key markers 📊.
• Testing before ovarian surgery helps in assessing fertility risks ⚖️.
• Guides surgeons to use less aggressive techniques to minimize harm to ovaries 🏥.
• Women value knowing their ovarian reserve to make informed reproductive choices 🧠.

8️⃣ Patient-Centered Approach in Endometriosis Management

• Fertility discussions should be standard practice before surgery 💡.
• Personalized risk assessments can help guide reproductive decisions 🎯.
• Comprehensive care for young women with endometriomas is essential 👩‍⚕️.