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Dr Katherine Watson ST1 Microbiology. Antibiotic Management of Neutropenic Sepsis at The James Cook University Hospital. Introduction. Review of trust antibiotic policy using:
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Dr Katherine Watson ST1 Microbiology Antibiotic Management of Neutropenic Sepsis atThe James Cook University Hospital
Introduction • Review of trust antibiotic policy using: • Neutropenic Sepsis: Prevention and Management of Neutropenic Sepsis in Cancer Patients. NICE Guidelines,September 2012 • Local antibiotic resistance rates in gram negative bacteraemias
NICE Guidelines • All patients should be offered: • Prophylaxis with fluoroquinolone antibiotics during expected periods of neutropenia • Piperacillin/tazobactam as initial empiric antibiotic therapy • Aminoglycosides not recommended • “Unless patient specific or local microbiological contraindications”
Current Trust Antibiotic Policy • Neutrophil count < 1.0 x 10 9 /L plus any of the following: • Temp. > 38oC at any time • Rigors • Hypothermia • Unexplained hypotension • Unexplained deterioration without pyrexia • Patients must receive intravenous antibiotics within 1 hour of presentation • First Line Antibiotic (pending culture results) Piperacillin/Tazobactam 4.5g tds • + Gentamicin 5mg/kg stat
Methods • APEX search • Positive blood cultures for patients under care of haematology consultants • Information recorded: • Organism identification • Antibiotic sensitivities of gram negative bacteria • Piperacillin/tazobactam, meropenem, ciprofloxacin, gentamicin
Positive Blood Cultures • 512 positive blood culture bottles taken between February 2009 and October 2012 • 151 patients • 600 organisms cultured • 267 gram positive bacteria (44.5%) • 329 gram negative bacteria (54.8%) • 4 fungi (0.7%)
Bacteria Identified • 329Gram negative bacteria: • 108E.coli 33.0% • 103KESC group 31.3% • 60Pseudomonas sp. 18.2% • 23Stenotrophomonas maltophilia 6.9% • 11Acinetobacter sp. 3.3% • 24Other gram negative bacteria 7.3%
Antibiotic Resistance S=sensitive, R= resistant. Not all organisms have full sensitivities available on APEX, S. Maltophilia not included as poor correlation between antibiotic susceptibility and treatment outcome
1. Fluoroquinolone Prophylaxis • However concerns regarding: • Risk of antibiotic associated Clostridium difficile • Development of antibiotic resistance • Action • Use of fluoroquinolone prophylaxis still under consideration • 94% of gram negative bacteria sensitive to ciprofloxacin
2. Piperacillin/tazobactam • 35 piperacillin/tazobactam resistant gram negative bacteria • 12 individuals, 2 with recurrent bacteraemias • Action • Continue to use as part of first line treatment of neutropenic sepsis • Not to use as a single agent • Local resistant rate of 12% in gram negative bacteria
3. Aminoglycosides • Only 2 bacteraemias resistant to both piperacillin/tazobactam and gentamicin • Action • Gentamicin will continue to be given for at least the first 24 hours after admission • To be reviewed with clinical response and culture results • 99.2% of gram negative bacteria sensitive to either piperacillin/tazobactam or gentamicin
Conclusion • First line treatment of neutropenic sepsis to remain as piperacillin/tazobactam and gentamicin • High resistance rates to NICE recommended empiric agent • NICE guidelines comment on importance of local resistance patterns • “High rates of resistance to chosen empiric agent could lead to treatment failure”
Any Questions? Katherine.watson@stees.nhs.uk