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Transcript of Infection International Infection. International Objectives definition predisposing factors...
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Infection
International
Infection
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Infection
International
Objectives
• definition
• predisposing factors
• pathophysiology
• clinical features
• sites of postpartum infection
• treatment
• prevention
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Infection
International
• Definition:– any patient with fever of 38.5°C 48-72 hours
following a vaginal or forceps delivery with uterine tenderness
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Infection
International
Incidence and scope:- major cause of maternal death in emerging countries
- less frequent with vaginal births
- complications include: shock, pelvic abscesses and pelvic thrombosis
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Infection
International
Pathophysiology- normal flora of genital tract contains potential pathogens
- amniotic fluid and increase in white blood cells during labour
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Infection
International
Clinical Features- usually 2-3 days post partum
- low grade temperature, lower abdominal pain and uterine tenderness
- also: malaise, anorexia, foul lochia
- if severe: high temperature and generalized peritonitis
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Infection
International
Predisposing factors- trauma and tissue necrosis following deliver creates a culture medium for ascending
- cesarean section is most important predisposing
- prolonged labour and ruptured membranes
- poverty and poor hygiene/nutrition
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Infection
International
Bacteria- polymicrobial
- most common:
Escherichia coli, Kelbsiella, Proteus and
Bacteroides fragilis
- less common:
Clostridium, Staphylococcus aurea and Pseudomona
- exogenous source:
Group A beta-hemolytic streptococci
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Infection
International
Clinical Features
- Group A beta-hemolytic stretpococci may be fulminant with peritonitis and septicemia
- if cultured, hospital personnel must be screened to try and identify the source
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Infection
International
Diagnosis- sites of infection to consider in post partum patient (culture if able):
endomyometritis
urinary tract
episiotomy site
abdominal incision
breast
thrombophlebitis: legs, pelvis
appendicitis
other: upper respiratory infection
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Infection
International
Management - Prevention- correct aseptic technique
- antibiotic use in women with cesarean section or prolonged rupture of membranes (1g ampicillin IV given prophylactically in cesarean section reduces infection)
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Infection
International
Management -- Treatmentmild case: single broad spectrum antibiotic (eg. ampicillin 1 g IV q6h Or orally)
if cesarean section:
flagyl 500 mg q8h + cefoxitin 2g q6h
OR
aminoglysocide (gentamycin or tobramycin) 60-100 mg q8h +clindamycin 900 mg q8h
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Infection
International
Management - Treatment
• if intravenous antibiotics used, continue for 48 hours after fever has stopped.
• if fever continues and aminoglycoside-clindamycin combination was used, add penicillin (5M units q6h) to cover enterococci
• oral antibiotics should be used for 5 days
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Infection
International
Other issues- the more antibiotics used, > the higher the chance of necrotizing colitis
- antibiotics do appear in breast milk but in most cases are not clinically significant (avoid tetracyclines)
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Infection
International
Specific issues:episiotomy infection: treat with antibiotics, baths (clean water!), heat
- remove sutures if fluctuation or pus
- rarely needs debridement
necrotizing fascitis: rare, rapid progression of local inflammation followed by gangrene -patient is toxic: high dose antibiotics but MUST surgically DEBRIDE
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Infection
International
Other issues- Septic pelvic thrombophlebitis--usually anaerobic sepsis
- usually patient is already on antibiotics but continues to have high spiking fevers
- diagnosis of exclusion
- treatment is intravenous heparin
- > condition should respond to heparin
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Infection
International
Other issues- Mastitis--penicillin G or penicillinase-resistant (methicillin or cloxacillin)
for 7-10 days
• continue breast feeding!
• if breast abcess--drain
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Infection
International
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Infection
International
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Infection
International
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Infection
International
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Infection
International
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Infection
International
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Infection
International
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Infection
International
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Infection
International
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Infection
International
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Infection
International
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Infection
International
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Infection
International
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Infection
International
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Infection
International
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Infection
International
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Infection
International
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Infection
International
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Infection
International
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Infection
International
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Infection
International
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Infection
International
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Infection
International
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Infection
International
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Infection
International
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Infection
International
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Infection
International
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Infection
International
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Infection
International
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Infection
International
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Infection
International
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Infection
International
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Infection
International