Treatment of Pelvic Inflammatory Disease (PID)
The recommended treatment for Pelvic Inflammatory Disease (PID) includes broad-spectrum antibiotics with coverage against Neisseria gonorrhoeae, Chlamydia trachomatis, anaerobes, gram-negative rods, and streptococci, with hospitalization for severe cases and outpatient management for mild to moderate cases. 1, 2
Diagnostic Criteria
- Minimum criteria for PID diagnosis include lower abdominal tenderness, adnexal tenderness, and cervical motion tenderness 2, 3
- Additional supporting criteria include:
Hospitalization Criteria
Hospitalization for parenteral therapy is recommended when:
- The diagnosis is uncertain or surgical emergencies cannot be excluded 2, 1
- A pelvic abscess is suspected 2, 1
- The patient is pregnant 2
- The patient is an adolescent 2, 1
- Severe illness precludes outpatient management 2
- The patient is unable to tolerate an outpatient regimen 2, 1
- The patient has failed to respond to outpatient therapy 2
- Clinical follow-up within 72 hours cannot be arranged 2, 1
Inpatient Treatment Regimens
Recommended Regimen A
- Cefoxitin 2 g IV every 6 hours or cefotetan 2 g IV every 12 hours 2
- PLUS Doxycycline 100 mg oral or IV every 12 hours 2
- Continue for at least 48 hours after clinical improvement 2, 1
- After discharge, continue doxycycline 100 mg orally twice daily to complete 10-14 days of therapy 2
Recommended Regimen B
- Clindamycin 900 mg IV every 8 hours 2, 1
- PLUS Gentamicin loading dose IV or IM (2 mg/kg) followed by maintenance dose (1.5 mg/kg) every 8 hours 2
- Continue for at least 48 hours after clinical improvement 2, 1
- After discharge, continue doxycycline 100 mg orally twice daily for 10-14 days 2
- Alternative: clindamycin 450 mg orally 4 times daily for 10-14 days 2
Outpatient Treatment for Mild to Moderate PID
- Cefoxitin 2 g IM plus probenecid 1 g orally administered concurrently as a single dose 1
- OR Ceftriaxone 250 mg IM as a single dose 2, 4
- PLUS Doxycycline 100 mg orally twice daily for 10-14 days 2, 1
Treatment Considerations
- Empiric treatment should be initiated promptly in sexually active women at risk for STDs who have uterine, adnexal, or cervical motion tenderness with no other explanation 2, 5
- Immediate administration of appropriate antibiotics has been linked to prevention of long-term sequelae 2, 6
- Patients who do not respond to oral therapy within 72 hours should be reevaluated and given parenteral therapy 2, 7
- Clindamycin has more complete anaerobic coverage than doxycycline, which is important in polymicrobial infections 2, 3
- When C. trachomatis is strongly suspected, ensure doxycycline is included in the regimen 2, 1
Partner Management
- Male sex partners should be examined and treated if they had sexual contact with the patient during the 60 days before symptom onset 2
- Partner evaluation and treatment are crucial due to the risk of reinfection and the likelihood of urethral gonococcal or chlamydial infection in the partner 2
Common Pitfalls to Avoid
- Discontinuing IV therapy too early before clinical improvement is established 3, 7
- Not screening for and treating sexually transmitted infections that may be the underlying cause 3, 6
- Delaying empiric treatment when PID is suspected, as this can increase risk of long-term sequelae including infertility, ectopic pregnancy, and chronic pelvic pain 5, 8
- Failing to consider PID in women with subtle symptoms such as abnormal vaginal discharge, metrorrhagia, or urinary frequency, particularly in women at risk of STIs 6, 8