Question

Difficulty: HardMenstrual Cycle Abnormalities and Contraception

A 3737-year-old G3P3 woman presents to the clinic to discuss long-term contraception. She and her partner state that their family is complete, but they prefer a non-surgical option. Her menstrual periods occur every 2828 days, last for 77 to 88 days, and are exceptionally heavy, requiring her to change super-absorbent pads every 22 hours during the first three days of menses. Her past medical history is significant for migraines that are consistently preceded by visual scintillating scotomas. She smokes 1515 to 2020 cigarettes per day. Vital signs show a blood pressure of 124/78 mmHg124/78 \text{ mmHg} and a heart rate of 7272/min. Body mass index is 28 kg/m228 \text{ kg/m}^2. Pelvic examination is unremarkable. A urine pregnancy test is negative. Laboratory studies reveal a hemoglobin level of 10.2 g/dL10.2 \text{ g/dL}. Which of the following is the most appropriate contraceptive method for this patient?

  1. A
    Combined oral contraceptive pills
  2. B
    Copper intrauterine device
  3. C
    Combined hormonal contraceptive patch
  4. Levonorgestrel-releasing intrauterine deviceAnswer
  5. E
    Depot medroxyprogesterone acetate injection

Answer

The most appropriate contraceptive method is the levonorgestrel-releasing intrauterine device.
The levonorgestrel-releasing intrauterine device (LNG-IUD) is the correct choice because it simultaneously addresses both of the patient's needs while safely navigating her complex medical history. She has two distinct WHO Medical Eligibility Criteria (MEC) category 4 conditions: migraine with aura and smoking ≥15\geq 15 cigarettes/day at age ≥35\geq 35. These conditions absolutely contraindicate the use of any estrogen-containing products due to a severely elevated risk of ischemic stroke and cardiovascular events. The LNG-IUD is a progestin-only method that acts locally to thin the endometrial lining, making it highly effective for treating heavy menstrual bleeding and resolving the associated anemia, while providing top-tier contraceptive efficacy.

Step-by-Step Solution

1
Analyze the patient's primary goals and baseline clinical status.
The patient requires highly effective contraception and management for heavy menstrual bleeding (HMB) that has caused symptomatic iron deficiency anemia (hemoglobin 10.2 g/dL).
Identifying all therapeutic needs ensures the chosen method addresses both contraception and gynecologic symptoms.
2
Evaluate the patient's medical history against the WHO Medical Eligibility Criteria (MEC) for contraceptive use.
The patient has migraine with aura and is a smoker over the age of 35. Both of these are independent WHO MEC category 4 (absolute) contraindications to any estrogen-containing contraception.
Estrogen significantly increases the risk of ischemic stroke in patients with migraine with aura, and increases the risk of cardiovascular events in older smokers.
3
Select the safest and most therapeutic method among the remaining non-estrogen options.
Estrogen methods are eliminated. The copper IUD is avoided because it worsens bleeding. The levonorgestrel-releasing IUD is selected.
The LNG-IUD provides top-tier contraceptive efficacy, contains no estrogen (making it safe for her medical conditions), and profoundly thins the endometrium, serving as a first-line treatment for heavy menstrual bleeding.

Key Concept

WHO Medical Eligibility Criteria and management of heavy menstrual bleeding with contraception
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