Pelvic Inflammatory Disease

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PID: Definition & Etiology - PID's Pesky Pathogens

  • Definition: A spectrum of inflammatory disorders of the upper female genital tract, including endometritis, salpingitis, oophoritis, tubo-ovarian abscess, and pelvic peritonitis.
  • Common Causative Organisms:
    • N. gonorrhoeae, C. trachomatis (📌 Go Chlamydia!)
    • Polymicrobial: Anaerobes, Mycoplasma genitalium
  • Key Risk Factors:
    • Multiple sexual partners, young age (<25 yrs)
    • Previous PID, recent IUCD insertion
    • Douching, history of STIs PID infection spread in female reproductive tract

⭐ Polymicrobial infection is common in PID, often involving N. gonorrhoeae, C. trachomatis, and anaerobes.

PID: Clinical Features - PID's Painful Profile

  • Common Symptoms:
    • Lower abdominal/pelvic pain (often bilateral)
    • Abnormal vaginal discharge (e.g., mucopurulent)
    • Intermenstrual or postcoital bleeding
    • Dyspareunia
    • Fever
  • Key Signs:
    • Cervical motion tenderness (CMT) - "Chandelier sign"
    • Adnexal tenderness (usually bilateral)
    • Uterine tenderness
    • Fever >38.3°C
  • Clinical Spectrum: Can range from asymptomatic/subclinical to severe, acute PID.

⭐ Cervical motion tenderness (CMT), also known as the 'Chandelier sign', is a classic sign of PID but not universally present.

PID: Diagnosis - PID's Clue Hunt

  • CDC Minimum Criteria (≥1 for Dx):
    • Cervical Motion Tenderness (CMT)
    • Uterine tenderness
    • Adnexal tenderness
    • (Sexually active young women, pelvic pain, no other cause)
  • Additional Criteria (↑ specificity):
    • Fever >38.3°C; Abnormal discharge
    • ↑ WBCs (wet mount); ↑ ESR/CRP
    • Positive GC/CT NAAT
  • Definitive: Endometrial biopsy; TVS/MRI (thick tubes); Laparoscopy.
  • Investigations: hCG test, GC/CT NAATs, Wet mount, ESR/CRP, USG (for TOA).

⭐ Initiate empirical PID treatment in sexually active young women with pelvic/lower abdominal pain if no other cause is found AND ≥1 minimum clinical criteria (CMT, uterine/adnexal tenderness) present on pelvic exam.

PID: Management - PID's Treatment Triumph

Goals: Eradicate infection, relieve symptoms, prevent sequelae.

Hospitalize if: Surgical emergency, pregnancy, severe illness/TOA, oral intolerance, outpatient failure.

Treatment Regimens (CDC):

TypeRegimens
OutpatientCeftriaxone 500mg IM (or 1g if >150kg) ONCE + Doxycycline 100mg PO BID x14d ± Metronidazole 500mg PO BID x14d.
InpatientCefotetan 2g IV q12h OR Cefoxitin 2g IV q6h, PLUS Doxycycline 100mg PO/IV q12h.
Alt: Clindamycin 900mg IV q8h PLUS Gentamicin (LD 2mg/kg, MD 1.5mg/kg) q8h.
  • Notify & treat all sexual partners (within past 60 days).
  • Abstain from intercourse until therapy completed & symptoms resolved.

⭐ All sexual partners of a patient with PID from the preceding 60 days should be evaluated, tested, and presumptively treated for chlamydia and gonorrhea, regardless of test results.

PID: Complications - PID's Lingering Legacy

  • Short-term:
    • Tubo-ovarian abscess (TOA)
    • Fitz-Hugh-Curtis syndrome (perihepatitis; RUQ pain, 'violin-string' adhesions)
    • Sepsis
  • Long-term:
    • Infertility (tubal; risk ↑ with episodes)
    • Ectopic pregnancy (risk ↑ 6-10 fold)
    • Chronic pelvic pain, dyspareunia
    • Hydrosalpinx Fitz-Hugh-Curtis syndrome violin-string adhesions

⭐ Fitz-Hugh-Curtis syndrome, characterized by perihepatitis and 'violin-string' adhesions between the liver capsule and peritoneum, is a known complication of PID, typically caused by C. trachomatis or N. gonorrhoeae.

High‑Yield Points - ⚡ Biggest Takeaways

  • PID is most commonly caused by Chlamydia trachomatis & N. gonorrhoeae.
  • Key diagnostic signs: Cervical motion tenderness (CMT), uterine, or adnexal tenderness.
  • Laparoscopy is gold standard for diagnosis, but clinical criteria are usually sufficient.
  • Standard outpatient treatment: Ceftriaxone IM + Doxycycline oral ± Metronidazole oral.
  • Fitz-Hugh-Curtis syndrome: Perihepatitis (violin-string adhesions) is a specific complication.
  • Major sequelae include infertility, ectopic pregnancy, and chronic pelvic pain.
  • Tubo-ovarian abscess (TOA) is a serious complication requiring prompt management_._

Practice Questions: Pelvic Inflammatory Disease

Test your understanding with these related questions

A 30-year-old woman presents with vaginal discharge and lower abdominal pain for 10 days. Examination reveals cervical motion tenderness and adnexal tenderness. Laboratory tests show elevated WBC count. What is the most appropriate initial antibiotic regimen?

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Flashcards: Pelvic Inflammatory Disease

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_____ syphilis can present with aortitis, particularly of the ascending thoracic aorta

TAP TO REVEAL ANSWER

_____ syphilis can present with aortitis, particularly of the ascending thoracic aorta

Tertiary

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