ot takes on old opics in infection prevention€¦ · • the super duper awesomeness bestest...
TRANSCRIPT
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IPAC BC EDUCATION DAY 2019
HOT TAKES ON OLD TOPICS
IN INFECTION PREVENTION
Titus Wong, MD, MHSc, FRCPC Regional Medical Director, Infection Prevention & Control, VCH
Medical Microbiologist, Medical Microbiology and Infection Prevention, VCH
Clinical Assistant Professor, Faculty of Medicine, UBC
Department of Pathology and Laboratory Medicine, VCH, UBC
On behalf of the VCH IPAC team:
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• IPAC BC & Amira, Jacquie – thank you for the invitation • The super duper awesomeness bestest goodest incrediblest Infection Control Practitioners!! • Our amazing technologists and the division of Medical Microbiology and Infection Prevention • Crothall and our amazing EVS team • FMO!!! • Allison Muniak and VCH Quality Patient Safety and Infection Control • Liz, Marthe, Teresa, Jaime, Meghan and the K9 team • Marthe, Rita, Juliana, Mary, Tamara, Gail, Eric for C. auris work • Aleksandra Gara and the Information, Solutions and Analytics team • Richard Dixon and CHAIR Canada • Linda Hoang, Joanne Archer and PICNET • UBC and VGH Hospital Foundation for supporting quality improvement and research
ACKNOWLEDGEMENTS
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Team photos
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T Wong
Merck
Cubist
Pfizer
Ondine
Steriliz
Biomerieux
Theravance
Accelerate
Teck
Generic drug names will be used
No company sponsored trials will
be mentioned
DISCLOSURE
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WHAT’S NEW IN 2018/19?
“See, aurs isn’t so bad, is it?”
“Influenz”ing patient outcomes”
“Making a big C’difference”
“HAI, how you doing?”
1
2
4
3
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See, aurs isn’t so bad, is it?
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MULTIDRUG RESISTANCE
C AURIS
CANDIDA AURIS
WHAT’S THE BIG DEAL?
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CANDIDA AURIS
IN THE NEW YORK TIMES
Not just in acute care!
Candida typically not worked up in
urine – should we change?
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Eyre, NEJM, 2019
70 pts (10 invasive);
Mobile equipment can
be point-sources for outbreaks!
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C. auris and disinfectants – Quats don’t work
Quats are not effective vs C. auris
Cadnum, ICHE 2017
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C. auris is as hardy as C. difficile vs UVC
Cadnum, ICHE 2018
UVC and C. auris – distance matters
In terms of environmental
hardiness, Consider C. auris
like C. difficile
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Echinocandins are empiric drug of
choice
CANDIDA AURIS
WHAT CAN WE DO?
C AURIS CONTROL
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SOMETHING TO BREAK THINGS UP
Song, BMJ 2019
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Song, BMJ 2019
Significantly higher chance for life-
threatening infection
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Influenz’ing patient outcomes
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What are some updates from 2009? - Recommended NAAT (nucleic acid amplificiation tests) over RIDT (viral antigen
testing) due to NATs having superior performance - If suspecting flu, treat ASAP before lab confirmation (and independent of
vaccination status, onset, duration of illness) - Avoid steroids if possible unless there is a compelling reason; also avoid IVIG
- What’s missing: NEW FLU DRUG, BALOXIVIR
Uyeki, CID, 2018
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Hayden, NEJM, 2018
Healthy patients,
uncomplicated flu
Baloxivir vs.
Placebo, Oseltamivir
Faster symptom relief
vs placebo, similar to
oseltamivir
GAP: What about complicated
patients? E.g. most of ours…
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Hayden, NEJM, 2018 Now FDA approved for high risk pts as of Oct 2019
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Nesher, ICHE 2019
In Hospital
2018 Rapid flu testing
Vs. 2017
standard of care
Shorter hospital stays,
lower occupancy
rates
GAP: Cost
implications? Complications?
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Nesher, ICHE 2019
Rapid Flu testing + communication resulted in faster discharge rates
Significantly earlier discharge!
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Nesher, ICHE 2019
Rapid Flu testing + communication resulted in lower occupancy of medicine beds
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Radonovich, JAMA 2019
In outpatient setting
N95 compared to
medical masks
No difference in lab
confirmed flu in HCWs
GAP: What about
inpatient, and AGMPs?
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SOMETHING TO BREAK THINGS UP
– BMJ – Swedish study ---- PTSD and high consequence infections
• https://www.jwatch.org/fw115959/2019/10/24/ptsd-other-stress-disorders-linked-serious-infection-risk
– Xuebijing wtf is this • Song Y et al. Crit Care Med 2019 Jun 3
Song, Crit Care Med 2019
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Answer:
“Carthamus tinctorius, Paeonia lactiflora, Ligusticum chuanxiong, Angelica sinensis and Salvia miltiorrhiza are necessary for this”
Song, Crit Care Med 2019
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What is, “XueBiJing”
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Song, Crit Care Med 2019
Significantly improvement in pneumonia, mortality, ICU stay
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Making a big C’difference
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– Asymptomatic CD carriers increase risk for CDI to other patients • Blixt T et al. Asymptomatic carriers contribute to nosocomial
Clostridium difficile infection: A cohort study of 4508 patients. Gastroenterology 2017 Jan 4; [e-pub]. (http://dx.doi.org/10.1053/j.gastro.2016.12.035)
Blixt, Gastroenterology, 2017
In hospital setting,
screened all admitted
patients for CDI
Rate of CDI in exposed vs unexposed
patients
CDI in 2.6% unexposed
patients and 4.6% in exposed
GAP: Can this
training be replicated
elsewhere?
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Bryce, JHI, 2017
In hospital setting
Two canine teams
Kappa agreement of
0.86 (excellent)
GAP: Can this
training be replicated
elsewhere?
Charles, Inf Prev Pract, 2019
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Clostridiodes difficile
Clostridium difficile
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– CDI – vanco prophylaxis may not help everyone – only those with previous CDI episode • Cariff DA et al. Infect Control Hosp Epidemiol 2019 Apr 29
In hospital setting,
patients with CDI history
When given abx, start PO
VANCO prophylaxis vs
NO vanco
No consistent
benefit observed
GAP: Is there
benefit with certain abx vs
others?
Caroff, ICHE, 2019
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Caroff, ICHE, 2019
No consistent benefit
observed
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– Cdi prophylaxis with fidax may be helpful in bmt allogeneic pts in facilities with high cdi rates – many barriers • Mullane KM et al. Clin Infect Dis 2018 Jun 9
Mullane CID 2019
In hospital setting, LBMT
patients
FQ + Fidaxomicin vs placebo
Benefit observed in fidaxomicin arm for lab
confirmed CDI
GAP: What about
other antibiotics other than
FQ?
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– Duration of antibiotic prophylaxis increases incidence of CDI • Branch-Elliman W et al. JAMA Surg 2019 Jul Hawn MT and
Knowlton LM. JAMA Surg 2019 Jul
Branch-Elliman, JAMA Surgery 2019
Cardiac, ortho,
colorectal, vascular surgical patients
ABX prophylaxis
<24h, 24-48h, 48-72h, >72h
Increasing duration
associated with AKI, CDI,
time dependent
Opportunity Let’s keep on collaborating
with ASP!
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HAI, how you doing?
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– HAI’s have reduced in the US. • Magill SS et al. Changes in prevalence of health care–associated
infections in U.S. hospitals. N Engl J Med 2018 Nov 1; 379:1732. (https://doi.org/10.1056/NEJMoa1801550)
Magill, NEJM 2018
Point Prevalence
Survey ~200 US hospitals
2011 vs
2015
overall HAI’s decrease driven by SSI & UTI
Gap: what about pneumonia, CDI, BSI’s?
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Magill, NEJM 2018
SSI and UTIs were significantly lower in repeat point prevalence study 2011 vs 2015
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– POST discharge MRSA decolonization effective but possibly COSTLY? Rewad the review of the article • Huang SS et al. N Engl J Med 2019 Feb 14
Multicenter, randomized,
post-discharge
education vs education+
decolonization
Decol group 6.3% infection
vs 9.2% in control
Gap: What are the
cost / resistance
implications ?
Huang, NEJM 2019
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Huang, NEJM 2019
Post discharge Education + decolonization significantly reduced MRSA infections
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– Should we do MSSA prevention as well as MRSA in pediatric NICU? • https://www.jwatch.org/fw110752/2015/10/20/methicillin-
susceptible-staph-infections-cause-more
Ericson, JAMA pediatrics, 2015
Multicenter, Retrospective cohort study, 348 NICU’s,
3888 pts
invasive infections with
MSSA vs
MRSA
mortality similar, but
MSSA 3:1 more common than
MRSA
opportunity: should we
aim to prevent MSSA
along with MRSA?
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Mortality similar in MRSA and MSSA invasive infection; MSSA more common = more deaths
Ericson, JAMA pediatrics, 2015
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Kramer, Antimicrob Res and Inf Cont, 2018
Multicenter, Retrospective cohort study, 1160 cases
BSI
E. faecalis vs E. faecium; VR or VS
E. faecium independent risk factor for
mortality
Vanco resistance did not increase
mortality risk, but increased
costs
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Kramer, Antimicrob Res and Inf Cont, 2018
E. faecium VSE Mortality difference driven by
species, not resistance
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• – Sphingo koreensis infections over 10 years (06-16) due to
contamination in the plumbing system • Johnson RC et al. N Engl J Med 2018 Dec 27 Gestrich SA et al. Infect
Control Hosp Epidemiol 2018 Dec
– Pseudomonas – CAM-1 (JAC)
– MCR-9 (susceptible in Salmonella, but colisin-R when cloned into ESCO)
Johnson, NEJM 2019
WGS study S. koreensis
isolates 2006-16 at NIH
12 patients infected,
including 8 bacteremias
IPAC + EPI + MICRO + WGS + CLINICIAN +
FMO teamwork
needed
Opportunity: horizontal
IPAC ; plumbing important
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Johnson, NEJM 2019
Prolonged Sphingomonas outbreak at the NIH
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Johnson, NEJM 2019
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longitudinal cohort study
estimated # of clusters
needed to observe
10, 30, 50% decreases
Very large data sets needed for definitive
guidance
Opportunity: fewer, but
larger, higher quality studies!
Blanco, JAMA net 2019
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With smaller predicted effect sizes, the number of clusters needed dramatically increases
Blanco, JAMA net 2019
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C. auris Emerging
pathogen causing outbreaks, difficult to eradicate
SUMMARY
FLU new guidelines
new drug Baloxivir
Rapid NAATs Masking
CDI Asymptomatic
carriage and risks Abx Prophylaxis
K9 detection
HAI HAI reduction
drivers post-discharge
MRSA decol ‘other’ GNRs
OTHERS PTSD, Stress and severe infections
XueBiJing
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• IPAC BC & Amira, Jacquie – thank you for the invitation • The super duper awesomeness bestest goodest incrediblest Infection Control Practitioners!! • Our amazing technologists and the division of Medical Microbiology and Infection Prevention • Crothall and our amazing EVS team • FMO!!! • Allison Muniak and VCH Quality Patient Safety and Infection Control • Liz, Marthe, Teresa, Jaime, Meghan and the K9 team • Marthe, Rita, Juliana, Mary, Tamara, Gail, Eric for C. auris work • Aleksandra Gara and the Information, Solutions and Analytics team • Richard Dixon and CHAIR Canada • Linda Hoang, Joanne Archer and PICNET • UBC and VGH Hospital Foundation for supporting quality improvement and research
ACKNOWLEDGEMENTS
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THANK YOU FOR YOUR ATTENTION
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The determinants of Health are often not medical
Titus Wong, BscPharm, MHSc, MD, FRCPC
[email protected]; 604-875-8228
Claire Martin / Oculi / Redux Pictures