Clostridium tetani Flashcards
Clostridium Tetetani- micro
G+, bacilli
ubiquitous
highly resistant endospore
Anaerobe
Costridium tetanus- toxin
2 subunits
replicates in body
Clostridium tentanus- MOA
Exotoxin blocks inhibitory nerves –> spasms
Clostridium tetanus- Dx
Hs
clinical
mouse anti-toxin neutralization
Clostridium tetanus Immunity-
No Ab are formed after exposure, so one exposure doesn’t protect from future infection
Clostridium Tetanus- prevention
Toxoid vaccine causes–> ab production that lasts 10 ysneed boosters
Clostridium tetanus- tx
Stop toxin production anti toxin control muscle spasms manage dysautonomia supportive care for breathing
Clostridium tetanus is seen in what populations
Poor wound care
Elderly
poor hygiene or childcare
Clostridium tetanus- what time of yr
Summer
Clostridium tetanus symptoms
stiffness
cramping
difficulty chewing or swallowing
trismus/ lock jaw
Clostridium tetanus- How many types
Generalized
Localized
cephalic
Neonatal
Clostridium tetanus- generalized
Most common- 80% reflex spasms to light and noise risus sardonicus- grimmaced face opisthotonus- arched back This leads to respiratory failure, aspiration, and generalized exhaustion
Clostridium tetanus- localized
spasm at wound site
can progress to generalized
Clostridium tetanus- cephallic
head wound
rare
affects cranial nerves leads to generalized
Clostridium tetanus- neonatal
severe generalized tetanus in neonates with unimmunized mothers, non sterile birth.
HIGH MORTALITY