Treatment of Tetanus

Immediate Management

Administer human Tetanus Immune Globulin (TIG) promptly to neutralize circulating toxin (250 units intramuscularly for prophylaxis; higher doses for established tetanus) 1, 2
Perform thorough wound cleaning and surgical debridement of necrotic tissue to remove the source of tetanus toxin production 1, 2
Initiate antimicrobial therapy with metronidazole (preferred) or penicillin G to eliminate Clostridium tetani 2
Note that tetanus vaccine (tetanus toxoid) should NOT be administered to patients with active tetanus infection as it provides no benefit for treating the established infection 2

Implement early respiratory support with mechanical ventilation for respiratory compromise 2
Monitor and manage autonomic instability, which is associated with high mortality 2
Monitor for rhabdomyolysis due to severe muscle spasms 2

Elderly patients require particularly careful management as they have higher mortality rates due to lower prevalence of protective antibody levels 1
Immunocompromised patients may require additional doses of TIG regardless of vaccination history 2
The case fatality rate remains high (18-21%) even with modern medical care, necessitating aggressive treatment 1

Tetanus does not confer natural immunity, so patients must complete a full primary immunization series after recovery 2
For previously unvaccinated adults, the recommended schedule is:
- First dose: Tdap (preferred over Td) 2
- Second dose: Td or Tdap at least 4 weeks after first dose 2
- Third dose: Td or Tdap 6-12 months after second dose 2
Ensure complete documentation of tetanus vaccination status for future wound management 2

For clean, minor wounds, administer tetanus toxoid if the patient has not received a dose within the past 10 years 3, 1
For contaminated or tetanus-prone wounds, administer tetanus toxoid if the patient has not received tetanus toxoid within the preceding 5 years 3, 1
For patients with tetanus-prone wounds who have not completed a primary vaccination series, TIG is necessary in addition to tetanus toxoid 1
When tetanus toxoid and TIG are given concurrently, use separate syringes and separate injection sites 1

TIG is superior to equine antitoxin, which carries significant risks including 7% immediate hypersensitivity reactions and 5% serum sickness, according to the Centers for Disease Control and Prevention 4