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Difficulty: MediumGynecologic Infections

An otherwise healthy 3030-year-old woman presents to the clinic complaining of a 33-day history of worsening dull, bilateral lower abdominal pain and a new onset of malodorous, yellowish vaginal discharge. She reports no fever, chills, nausea, or vomiting. Her medical history is unremarkable. She has a copper intrauterine device (IUD) that was inserted 33 years ago for contraception. She recently became sexually active with a new male partner. Vital signs include a temperature of 37.4∘C37.4^\circ\text{C} (99.3∘F99.3^\circ\text{F}), blood pressure of 120/78 mm Hg120/78\text{ mm Hg}, and pulse of 82/min82/\text{min}. Pelvic examination reveals a visually normal cervix with visible IUD strings and moderate purulent discharge at the cervical os. Bimanual examination elicits pronounced cervical motion tenderness and bilateral adnexal tenderness without palpable masses or fullness. A urine pregnancy test is negative. Which of the following is the most appropriate next step in the management of this patient?

  1. Administer intramuscular ceftriaxone, prescribe oral doxycycline and metronidazole, and retain the intrauterine deviceAnswer
  2. B
    Administer intramuscular ceftriaxone, prescribe oral doxycycline and metronidazole, and remove the intrauterine device
  3. C
    Admit the patient for intravenous cefotetan and oral doxycycline, and retain the intrauterine device
  4. D
    Prescribe oral levofloxacin and metronidazole, and retain the intrauterine device
  5. E
    Remove the intrauterine device and delay antimicrobial therapy pending culture results

Answer

Administer intramuscular ceftriaxone, prescribe oral doxycycline and metronidazole, and retain the intrauterine device
The correct management for this patient is to administer intramuscular ceftriaxone, prescribe oral doxycycline and metronidazole, and retain the intrauterine device. This patient presents with classic signs of pelvic inflammatory disease (PID), including bilateral lower abdominal pain, purulent cervical discharge, cervical motion tenderness, and adnexal tenderness. Because she is hemodynamically stable, afebrile, and tolerating oral intake, outpatient management is appropriate. The CDC-recommended outpatient regimen consists of a single dose of intramuscular ceftriaxone (to cover N. gonorrhoeae) along with 14 days of oral doxycycline (to cover C. trachomatis) and oral metronidazole (to cover anaerobes). Furthermore, for patients diagnosed with PID who have an IUD in place, current guidelines explicitly recommend against routine IUD removal. The IUD should be left in place while the patient is treated with antibiotics and clinically reassessed in 48 to 72 hours. Removal is only indicated if the patient fails to show clinical improvement after this initial treatment period.

Step-by-Step Solution

1
Diagnose pelvic inflammatory disease (PID)
The patient has lower abdominal pain, purulent cervical discharge, cervical motion tenderness, and adnexal tenderness.
These findings fulfill the Centers for Disease Control and Prevention (CDC) minimum clinical criteria for the empiric treatment of PID in sexually active young women.
2
Determine the appropriate setting for treatment (inpatient vs. outpatient)
Outpatient management is indicated.
The patient is hemodynamically stable, afebrile, tolerating oral intake without nausea or vomiting, and has no evidence of a tubo-ovarian abscess or pregnancy.
3
Select the optimal outpatient antimicrobial regimen
Intramuscular ceftriaxone plus oral doxycycline and oral metronidazole.
This broad-spectrum regimen provides comprehensive coverage against Neisseria gonorrhoeae, Chlamydia trachomatis, and anaerobic flora, which are the primary pathogens in PID.
4
Decide on the management of the intrauterine device (IUD)
Retain the IUD and reassess the patient clinically in 48 to 72 hours.
Current guidelines recommend against the routine immediate removal of an IUD in acute PID, as removal does not improve clinical outcomes and adds unnecessary procedural risks and loss of contraception.

Key Concept

Patients with mild to moderate pelvic inflammatory disease (PID) who have an intrauterine device (IUD) in place should be treated with appropriate outpatient empiric antibiotics (e.g., intramuscular ceftriaxone, oral doxycycline, and oral metronidazole) without immediate removal of the IUD.
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Topics

Gynecologic Infections

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