Infections Flashcards
what organisms usually cause iliopsoas abscess
blood spread or staph A
secondary causes iliopsoas abscess
crohns, diverticulutis, osteomyelitis, IV drug use
symptoms ilipsoas abscess
fever, flank pain, limp, weight loss
o/e iliopsoas abscess
lying down and bent knee // place hand on knee and press against thigh // hyperextend affected hip –> pain
invx ilipsoas abscess
CT abso
mx ilipsoas abscess
abx, purcutanous drainage, surgery
causes discitis
staph A, viral, TB, aseptic
symptoms discitis
back pain, fever, rigors, neurologucal features
invx discitis
MRI // maybe biopsy // echo for endocarditis
mx discitis
6-8 weeks Iv abx //
complications discitis
sepsis or epidural abscess
where does haematogenous osteomyelitis usually occur
vertebral osteomyelitis
RF haematogenous osteomyelitis
IV drugs, sickle cell anaemia, immunosuppresed, endocarditis, KIDS
RF non- haematogenous osteomyelitis
recent trauma, diabetes, pressure sore, PAD, ADULT
organisms osteomyelitis
staph A - (except sickle anaemia salmonella)
invx osteomyelitis
MRI
mx osteomyelitis
fluclox 6 weeks (clindamycin if allergic)
most common cause + organism septic arthritis
staph A - (gonorrhoea also common) // blood spread acc most common cause
most common joint septic arthritis adults vs kids
adults = knees // kids = hip, knee, ankle
symptoms septic arthritis
acute swollen, warm, joint with restricted movement // fever // limp
invx septic arthritis
synovial sample - WCC // blood cultures //
criteria for diagnosing septic arthritis in kids
Kocher: fever < 38.5 // WCC in joint aspiration // raised ESR // non-weight bearing
mx septic arthritis
IV fluclox (or clinda) for 4-6 weeks –> 2 weeks oral
RF prosthetic joint infection
obese, T2DM, RA
organism prosthetic joint infection
staph epi!! // staph A, e.coli, pseudomonas
mx infected prosthetic joint
remove, 6 weeks abx (usually vancomycin)
what organism causes tetanus + where is it found
clostridium tetani // the soil
RF tetanus
IV drug use
symptoms tetanus
prodrome fever, headache // trismus // faical spasm // deformed back // spasms
what does the toxin from tetanus inhibit
GABA (inhibitory pathway)
mx tetanus
muscle relaxants // IM Ig // metrodinazole
