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Congenital syphilis

Last edited: 4/15/2026

Overview

Congenital syphilis (CS) results from transplacental transmission of Treponema pallidum during pregnancy, leading to severe fetal and neonatal complications including sepsis-like presentations, organ dysfunction, and prematurity 13.

Diagnosis

  • Clinical Symptoms: Rash, palmoplantar desquamation, abdominal distension, hepatosplenomegaly 1.
  • Laboratory Findings: Elevated CRP, abnormal liver enzymes (ALT, AST), changes in hemoglobin (Hb), platelet (PLT), white blood cell (WBC) counts 1.
  • Specific Tests: Non-treponemal tests (e.g., RPR, VDRL) and treponemal tests (e.g., TPHA, TP-PA) for serological confirmation 13.
  • Culture: Blood culture may be negative or not routinely performed; clinical differentiation crucial 1.
  • Management

  • Antibiotic Therapy: Penicillin G is the first-line treatment, typically administered intravenously for severe cases (doses vary by weight and severity) 13.
  • Duration: Extended therapy may be required for severe cases, often lasting several weeks 1.
  • Supportive Care: Management of organ dysfunction and respiratory distress as needed 13.
  • Special Populations

  • Pediatrics: Premature infants and neonates are particularly vulnerable, presenting with severe symptoms like hepatosplenomegaly and respiratory distress 3.
  • Comorbidities: No specific comorbidities detailed in abstracts, but severe cases can lead to multiple organ dysfunction syndrome (MODS) 1.
  • Key Recommendations

  • Early and Accurate Diagnosis: Critical for improving outcomes in infants presenting with sepsis-like symptoms suggestive of congenital syphilis (Evidence: Moderate) 1.
  • Prompt Penicillin Therapy: Initiate intravenous penicillin G promptly for confirmed or highly suspected cases (Evidence: Moderate) 13.
  • Monitor Organ Function: Closely monitor for signs of MODS and provide supportive care as needed (Evidence: Weak) 1.
  • References

    1 Liu Y, Zhu Y, Wang Y, Wan C. Differences between congenital-syphilis presenting as sepsis and neonatal sepsis: A case-control study. Medicine 2019. link 2 Rosenberg NM. Congenital syphilis: an emerging emergency. Pediatric emergency care 1991. link 3 Garland SM, Sawyer SM. Congenital syphilis is with us still. The Medical journal of Australia 1989. link

    Original source

    1. [1]
    2. [2]
      Congenital syphilis: an emerging emergency.Rosenberg NM Pediatric emergency care (1991)
    3. [3]
      Congenital syphilis is with us still.Garland SM, Sawyer SM The Medical journal of Australia (1989)

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