Female Factor Infertility

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Ovarian Factors - Egg Timer Troubles

  • Age: Primary factor; oocyte quantity/quality ↓ significantly, impacting fecundity.
  • Diminished Ovarian Reserve (DOR):
    • Reduced oocyte pool. Markers:
      • AMH < 1.1 ng/mL
      • Antral Follicle Count (AFC) < 5-7 (total via TVS)
      • Basal FSH > 10-12 mIU/mL (Day 2/3)
  • Premature Ovarian Insufficiency (POI):
    • Ovarian failure < 40 yrs.
    • Amenorrhea, hypoestrogenism, ↑FSH (>25-40 mIU/mL, 2 occasions >4 wks apart).
  • Anovulation/Oligo-ovulation (WHO Classification):
    • Gr I: Hypothalamic failure (e.g., anorexia). ↓FSH, ↓LH, ↓E2.
    • Gr II: HPO dysfunction (PCOS commonest).

      ⭐ PCOS is the most common cause of anovulatory infertility (WHO Group II).

      • Normo/↑LH, Normo FSH.
    • Gr III: Ovarian failure (e.g., POI). ↑FSH, ↑LH, ↓E2.

AMH levels decline with age

Tubal & Peritoneal Factors - Pipeline Predicaments

  • Contribute to ~30-40% of female infertility. Key culprits:
    • Pelvic Inflammatory Disease (PID) (e.g., Chlamydia).
    • Endometriosis.
    • Post-surgical adhesions (e.g., myomectomy).
    • Previous tubal surgery (ligation, ectopic).
  • Pathophysiology:
    • Mechanical blockage (distal/proximal).
    • Impaired ciliary motility.
    • Hydrosalpinx: fluid accumulation toxic to embryos.
    • Peritubal adhesions distorting tubo-ovarian anatomy.
  • Investigations:
    • Hysterosalpingography (HSG): initial screening.
    • Laparoscopy with chromopertubation: definitive diagnosis.
    • Sonohysterosalpingography (SHG).
  • Management:
    • Tubal reconstructive surgery (e.g., fimbrioplasty).
    • In Vitro Fertilization (IVF): often the preferred treatment.

    ⭐ Pre-IVF salpingectomy or proximal tubal occlusion is advised for hydrosalpinx (diameter >3 cm) to improve implantation rates. Salpingitis: Causes, Symptoms, and Complications

Uterine & Cervical Factors - Womb & Neck Niggles

  • Uterine Anomalies:
    • Congenital (Müllerian): Septate (↑RPL, commonest), bicornuate, arcuate. DES exposure → T-shaped uterus.
    • Acquired: Submucosal/intramural fibroids (distort cavity, ↓implantation), endometrial polyps, Asherman’s syndrome (intrauterine adhesions, often post-D&C/infection), adenomyosis.
  • Cervical Factors:
    • Stenosis (post-surgery/congenital), impedes sperm transport.
    • Hostile mucus (e.g., clomiphene effect, infection, anti-sperm Ab).
  • Dx: TVS, HSG, Saline Infusion Sonography (SIS), Hysteroscopy (gold standard for intrauterine lesions).
  • Rx: Hysteroscopic surgery (septoplasty, myomectomy, adhesiolysis), IUI (bypasses cervical factor), IVF.

    ⭐ Submucosal leiomyomas most significantly impair implantation and pregnancy outcomes. Hysteroscopy of submucosal fibroid Gynaecology Infertility

Diagnostic Workup - Clue Quest Central

  • Foundation: Comprehensive history (menstrual cycle, coital frequency, medical/surgical past), targeted physical exam (BMI, signs of androgen excess, thyroid).
  • Ovulation Check:
    • Mid-luteal serum progesterone (Day 21 of 28-day cycle; >3 ng/mL suggests ovulation, >10 ng/mL adequate).
    • Urinary LH ovulation predictor kits.
    • TVS for follicular monitoring.
  • Ovarian Reserve (ORT):
    • Day 2/3 FSH, LH, Estradiol.
    • Anti-Müllerian Hormone (AMH): reflects primordial follicle pool.
    • Antral Follicle Count (AFC) via TVS (5-10 follicles per ovary normal).
  • Anatomical Assessment:

⭐ AMH is a reliable marker of ovarian reserve, less prone to cycle-to-cycle variability than FSH.

High‑Yield Points - ⚡ Biggest Takeaways

  • Polycystic Ovary Syndrome (PCOS) is the leading cause of anovulatory infertility.
  • Tubal factors, especially blockage from Pelvic Inflammatory Disease (PID), are common.
  • Endometriosis contributes through inflammation, adhesions, and altered folliculogenesis.
  • Diminished Ovarian Reserve (DOR) is marked by ↓AMH and ↑FSH.
  • Uterine issues like submucosal fibroids or polyps can hinder implantation.
  • Advanced maternal age (>35 years) critically reduces oocyte quality and quantity.
  • Ovulation induction (clomiphene, letrozole) is first-line for anovulatory patients.

Practice Questions: Female Factor Infertility

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Hysteroscopic excision is indicated for which of the following conditions?

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Flashcards: Female Factor Infertility

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Drug of choice for Polycystic ovarian disease is

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Drug of choice for Polycystic ovarian disease is

Metformin

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