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Difficulty: EasyReproductive Endocrinology and Infertility

An otherwise healthy couple arrives at the reproductive endocrinology clinic for their first consultation regarding primary infertility. They have been actively attempting to conceive for 18 months without success. The female partner is 27 years old, reports predictable 28-day menstrual cycles, and denies any history of pelvic pain, abdominal surgeries, or sexually transmitted infections. The male partner is 29 years old and has no significant past medical history. They are eager to understand the step-by-step process of their care. Arrange the following steps of their evaluation and management in the most appropriate standard chronological sequence, starting from the initial diagnostic step and concluding with the most advanced therapeutic intervention.

  1. 1Perform a semen analysis of the male partner
  2. 2Assess fallopian tube patency via hysterosalpingography (HSG)
  3. 3Conduct a trial of controlled ovarian stimulation with intrauterine insemination (IUI)
  4. 4Proceed to in vitro fertilization (IVF)

Answer

The correct sequence for a standard infertility protocol is: 1) Perform a semen analysis, 2) Assess fallopian tube patency via HSG, 3) Conduct a trial of controlled ovarian stimulation with IUI, and 4) Proceed to IVF.
The standard infertility evaluation follows a logical progression from non-invasive diagnostic tests to more invasive diagnostics, followed by conservative treatments, and finally advanced reproductive technologies. Semen analysis identifies male factors non-invasively; HSG identifies anatomical barriers; IUI serves as the initial low-risk treatment for unexplained infertility; and IVF serves as the definitive treatment for refractory cases.

Step-by-Step Solution

1
Perform a semen analysis of the male partner.
Evaluates for male factor infertility.
Male factor infertility accounts for nearly 40-50% of cases. Semen analysis is a non-invasive, inexpensive initial test that must be performed before subjecting the female partner to more invasive diagnostic procedures.
2
Assess fallopian tube patency via hysterosalpingography (HSG).
Evaluates for tubal factor infertility.
Because the female patient has regular 28-day cycles (suggesting normal ovulation), the next diagnostic step is to ensure there are no structural blockages in the fallopian tubes. Patent tubes are an absolute requirement for natural conception or IUI.
3
Conduct a trial of controlled ovarian stimulation with intrauterine insemination (IUI).
Serves as the initial therapeutic intervention.
If all initial diagnostic tests (semen analysis, ovulation assessment, HSG) are normal, the couple has 'unexplained infertility.' The standard first-line treatment is typically 3 to 4 cycles of ovulation induction paired with IUI, which is less invasive and less costly than advanced therapies.
4
Proceed to in vitro fertilization (IVF).
Provides definitive, advanced assisted reproduction.
IVF is indicated when first-line therapies (like IUI) have failed, or if severe irreversible factors (such as bilateral tubal occlusion or severe male oligospermia) are discovered during the initial diagnostic workup.

Key Concept

Stepwise evaluation and management of primary infertility
Estimated Time:1m 0s
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Topics

Reproductive Endocrinology and Infertility

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