containment of multidrug- resistant organisms€¦ · five known types kpc (klebsiella pneumoniae...
TRANSCRIPT
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Containment of Multidrug-Resistant Organisms Tabletop Exercise 2018
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Multidrug-Resistant Organisms (MDROs)
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Mechanisms of Resistance to Antibiotics
Peleg et al. N Engl J Med 2010;362:1804-13
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Antibiotic Resistance — Simplified
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Spread of Antimicrobial Resistance
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Carbapenem-resistant Enterobacteriaceae
(CRE)
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CRE—one of many MDROs
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Members of Family of Enterobacteriaceae
• Escherichia • Enterobacter • Klebsiella • Proteus • Providencia • Salmonella • Serratia • Shigella
Alishewanella Alterococcus Aquamonas Aranicola Arsenophonus Azotivirga Blochmannia Brenneria Buchnera Budvicia Buttiauxella Cedecea Citrobacter Cronobacter Dickeya Edwardsiella Erwinia Ewingella Grimontella Hafnia Kluyvera
Leclercia Leminorella Moellerella Morganella Obesumbacterium Pantoea Pectobacterium Phlomobacter Photorhabdus Poodoomaamaana Plesiomonas Pragia Rahnella Raoultella Samsonia Sodalis Tatumella Trabulsiella Wigglesworthia Xenorhabdus Yersinia Yokenella
More Common Genera of Enterobacteriaceae
Other Genera of Enterobacteriaceae
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Case Definition
CLSI Break Points for Reporting CRE
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Carbapenemase-producing CRE (CP-CRE)
Bacterial Conjugation
Five Known Types KPC (Klebsiella pneumoniae carbapenemase) NDM (New Delhi metallo-β-lactamase) IMP (Imipenemase) VIM (Verona integron-encoded metallo-β-lactamase) OXA-48 (Oxacillinase)
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Clinical Symptoms
Pneumonia, urinary tract infections, and serious bloodstream or wound infections Common signs and symptoms may include:
– Severe urinary tract infections – High fever – Bloodstream infections – Sepsis – Septic shock
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Transmission
Colonized patients are thought to be a source of transmission
Spread thru direct contact on hands of healthcare workers or contaminated surfaces
Immunocompromised, ICU care, indwelling medical devices, history of antibiotic treatment lead to a greater risk for infection or colonization
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Interactive Dashboards
Interactive iDashboard Gallery: Carbapenem-resistant Enterobacteriaceae (CRE) Surveillance Data iDashboard Demonstration https://healthwebaccess.tn.gov/idashboards/?guestuser=guest&dashID=815&c=0 Department of Health HAI Website https://www.tn.gov/health/cedep/hai.html
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Composite CRE Gallery
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Dashboard Detail
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Dashboard Detail
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Tennessee CRE cases reported by Year, 2012–2017
241 216 233
427
711 755
0
100
200
300
400
500
600
700
800
2012 2013 2014 2015 2016 2017
No of cases
Case Definition Change
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Result Frequency Percent
Detected 224 39.2%
KPC gene detection rate among tested isolates, 2017 (n=572)
755 total cases for 2017
572 isolates submitted
76% isolate submission
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CRE Reporting & Isolate Submission
Report within 1 week using PH-1600 (paper or electronic). Include antimicrobial susceptibility results when reporting. Isolate submission required to the State Lab
Reasons for Surveillance
– Implement timely prevention measures – Monitor impact of prevention strategies – Identification of disease trends and characterize
strains – Identify geographical and temporal changes in
prevalence – Detect and investigate outbreaks
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2018 Reportable Diseases Change
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Tiered Containment Strategy
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Why is Containment Critical?
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Containment Strategy
• Interim Guidance for a Health Response to Contain Novel or Targeted MDROs
https://www.cdc.gov/hai/outbreaks/docs/Health-Response-Contain-MDRO.pdf
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Goals
• Provide specific, standardized recommendations for public health response to single cases: – Determine if transmission is occurring – Identify affected patients – Ensure appropriate control measures are
implemented – Better characterize organism to guide future
responses
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Response Tiers
• Tier 1 – Resistance mechanisms novel to the U.S. (i.e.,
not or only very rarely identified in the U.S.) or poorly understood
– Organisms for which no current treatment options exist (pan-resistant)
• Tier 2 • Tier 3
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Response Tiers
• Tier 1 • Tier 2
– MDROs primarily found in healthcare settings but not found regularly in the region; these organisms might be found more commonly in others areas of the U.S.
• Tier 3
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Response Tiers
• Tier 1 • Tier 2 • Tier 3
– MDROs targeted by the facility/region that are already established in the U.S. and have been identified before in the region but are not thought to be endemic
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Tiered Response Following MDRO Detection
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Tiered Response Following MDRO Detection Today’s Exercise!
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Approach to Screening Healthcare Contacts
https://www.cdc.gov/hai/outbreaks/mdro/index.html
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Patient Sharing Network and Antimicrobial
Resistant Organisms
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How Antimicrobial Resistance Spreads
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What is Social Network Analysis?
Social network analysis (SNA) is the mapping and measuring of relationships between people, groups, or organizations
Borgatti et al, 2003
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Patient Sharing Between TN Facilities within 365 days
Facility Types Acute Care/Critical Care Hospital
Nursing Homes
Long-term acute care hospital
Inpatient Rehab Facility
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