Toxic Shock Syndrome ✅

Related Subjects: Atropine |Acute Anaphylaxis |Basic Life Support |Advanced Life Support |Adrenaline (Epinephrine) |Acute Hypotension |Cardiogenic shock |Distributive Shock |Hypovolaemic or Haemorrhagic Shock |Obstructive Shock |Septic Shock and Sepsis |Shock (General Assessment) |Toxic Shock Syndrome |Non-invasive ventilation (NIV) |Intubation and Mechanical Ventilation |Critical illness neuromuscular weakness |Multiple Organ Dysfunction Syndrome

⚠️ Toxic Shock Syndrome (TSS) is a life-threatening medical emergency 🆘 caused by toxin-producing bacteria. Patients can deteriorate very rapidly (within hours) due to a profound cytokine-mediated inflammatory response. Common triggers include 🩸 prolonged tampon use, 🤕 infected wounds, 🏥 postoperative packing, burns, or invasive soft-tissue infection. 🚨 Early recognition is critical. 💉 Aggressive IV fluids, rapid antibiotics, and source control dramatically improve survival. Look for the classic cluster:

• 🌡️ High fever
• 🌺 Diffuse erythematous rash
• ⬇️ Hypotension
• 🧠 Altered mental state
• 💩 Vomiting or diarrhoea

🚑 Immediate Emergency Management

• 🫁 Airway: Ensure airway patency; consider early intubation if reduced consciousness.
• 🌬️ Breathing: Oxygen via mask to maintain SpO₂ >94%.
• 💉 Circulation: Insert two large-bore IV cannulas.
• 💧 Give 20 mL/kg IV crystalloid bolus (e.g., Hartmann’s or normal saline).
• 🔁 Repeat fluid boluses if hypotension persists.

• 💊 Clindamycin (critical - suppresses toxin production).
• 💊 Vancomycin or flucloxacillin depending on MRSA risk.
• 💊 Add piperacillin-tazobactam or meropenem in severe sepsis.
• Antibiotics should ideally be given within 1 hour of recognition.

• 🩸 Remove tampon or menstrual cup.
• 🏥 Remove nasal packing or surgical packing.
• 🔎 Examine wounds and surgical sites.
• ✂️ Urgent surgical debridement if necrotising infection suspected.

• 🧪 Blood cultures (before antibiotics if possible).
• 📊 FBC, U&E, LFTs, clotting profile.
• 🧬 CRP and lactate.
• 🫁 ABG or VBG.
• 🩸 CK (muscle involvement).
• 🧫 Wound or vaginal cultures.
• 💉 Group and save / crossmatch.

• 🚽 Urinary catheter for strict fluid balance.
• Target urine output ≥0.5 mL/kg/hour.
• 📉 Serial lactate monitoring.
• Continuous ECG and blood pressure monitoring.

• 🏥 Early ICU referral.
• 💉 Noradrenaline if hypotension persists despite fluids.
• 🧪 IV immunoglobulin (IVIG) may be considered in severe or refractory cases.

🧬 Pathophysiology

• Superantigens bypass normal antigen processing.
• They directly activate large numbers of T-cells.
• This triggers a massive cytokine storm (TNF-α, IL-1, IL-6).
• Consequences include:
  • 💧 Capillary leak
  • ⬇️ Severe hypotension
  • 🫀 Reduced tissue perfusion
  • 🧠 Multi-organ failure

• 🟡 Staphylococcus aureus → TSST-1 toxin (classically tampon-associated).
• 🔴 Streptococcus pyogenes → streptococcal pyrogenic exotoxins.

🌍 Epidemiology

• Rare condition: roughly 1–3 cases per 100,000 people annually.
• 🩸 Menstrual TSS became less common after tampon manufacturing changes in the 1980s.
• Now most cases are non-menstrual.
• Can occur in:
  • 👩 menstruating women
  • 👶 children
  • 👨 men
  • 👵 elderly patients

⚠️ Risk Factors

• 🩸 High-absorbency tampon use or prolonged tampon retention.
• 🤕 Skin or soft-tissue infection.
• 🔥 Burns.
• 🏥 Post-operative wounds or surgical packing.
• 🧒 Varicella infection in children.
• 🦠 Invasive streptococcal infection.

📋 Diagnostic Criteria (CDC Case Definition)

• 🌡️ Fever ≥38.9°C
• 🌺 Diffuse erythematous rash
• ⬇️ Hypotension (SBP ≤90 mmHg)
• 🧍 Multi-organ involvement affecting ≥3 systems such as:
  • GI: vomiting or diarrhoea
  • Renal: elevated creatinine
  • Hepatic: raised LFTs
  • Muscular: myalgia or elevated CK
  • CNS: confusion
  • Haematological: thrombocytopenia
• 🖐️ Desquamation of palms/soles occurring 1–2 weeks later.

💊 Treatment by Cause

• Remove source (tampon or packing).
• IV clindamycin + flucloxacillin or vancomycin.
• Aggressive fluid resuscitation.
• ICU monitoring if shock persists.
• Consider IVIG in severe disease.

• Urgent surgical exploration if necrotising fasciitis suspected.
• IV benzylpenicillin + clindamycin.
• Early aggressive resuscitation.
• ICU support and vasopressors.

📝 High-Yield Exam Pearls

• 💊 Clindamycin is essential because it suppresses toxin production.
• 🌺 Rash + hypotension + multi-organ dysfunction should immediately raise suspicion of TSS.
• 🔎 Always remove tampons or surgical packing when assessing unexplained septic shock.
• ⚡ Streptococcal TSS frequently coexists with necrotising fasciitis.
• 🖐️ Late desquamation of palms and soles is a classic diagnostic clue.

🛡️ Prevention

• 🩸 Change tampons every 4–6 hours.
• 🚫 Avoid unnecessarily high-absorbency tampons.
• 🌙 Use sanitary pads overnight.
• 🧼 Maintain good wound hygiene.
• 🏥 Remove surgical packing promptly.

📚 References

• Royal College of Paediatrics and Child Health. Guideline for Recognition and Management of Toxic Shock Syndrome.
• UK Health Security Agency. Guidelines for the Public Health Management of Invasive Group A Streptococcal Infection.
• Stevens DL, et al. Practice guidelines for the diagnosis and management of skin and soft tissue infections. Clinical Infectious Diseases. 2014;59(2):e10-52.
• Fisher MC, et al. Toxic Shock Syndrome. JAMA. 2019;321(6):588-598.
• Centers for Disease Control and Prevention (CDC). Toxic Shock Syndrome Case Definition and Clinical Guidance.