Are we running out of antibiotics? - Slideset by Professor Esposito

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How does antibiotic resistance happen? This work, edited by the professor Susanna Esposito, tries to answer this question underlining the importance of prescribing the right drug with the right dose and duration, to avoid any kind of abuse that may cause or increase antibiotic resistance. To learn more please visit www.waidid.org

Health & Medicine

ARE WE RUNNING OUT OF
ANTIBIOTICS?
Susanna Esposito
Pediatric Clinic, University of Perugia
Perugia, Italy

Disclosures
Research Grants: Abbott, DMG, GSK, Janssen,
Sanofi-Pasteur, Vifor
Advisory Board Membership: GSK, Janssen, MSD,
Sanofi-Pasteur, Pfizer, Vifor

Antibiotic Consumption, Europe
OECD 2016

ANTIMICROBIAL RESISTANCE AND
USE OF ANTIBIOTICS
a) ABUSE: prescriptions for diseases
not due to bacterial infection
b) MISUSE: use with inappropriate
dosage and duration of administration

Effect of antibiotic
prescribing in primary
care on antibiotic
resistance
(From Costelloe C et al. BMJ 2010)

MDR gram-negative bacilli, resistance
mechanisms & therapeutic options
Pop-Vicas A & Opal SM Virulence 2013

Prevention of infection: handwashing
Early and late hand washing and emergence of
respiratory infectious diseases
(from Kim HS et al., Medicine 208)

Prevention of infections: use of vaccines
Immediate reduction of IPD
after conjugate vaccine introduction

Results of
antibiotic
stewardship
programs in
pediatrics
(From Godbout EJ et al.,
Curr Infect Dis Report 2018)

DO NOT TREAT CONTAMINATION OR
COLONIZATION!!!

Surgical prophylaxis
• Surgical antimicrobial prophylaxis reduce the risk of SSI
• Surgical antimicrobial prophylaxis timing is crucial
• Prophylaxis should use narrow-spectrum antibiotic
• Control of the adherence to the National Guidelines
• National surveillance system of adverse events of antibiotic
prophylaxis, including C. difficile
• Communication and educational programmes to increase
awareness of adverse events, including AMR, due to
inappropriate use of antibiotics for surgical prophylaxis
Menichetti F et al. Int J Antimicrob Agents. 2018 Aug;52(2):127-134

Medical prophylaxis in
patients at risk of infections
• Prevention of endocarditis in dental procedures
• Prevention of post-splenectomy sepsis syndrome
• Prevention of Rheumatic Fever
• Prevention of relapsing cellulitis in lymphedema
• Prevention in close contact of N.meningitidis
• Prevention of sepsis in febrile neutropenia (?)
• Prevention of sepsis in multi-colonized pts (?)
Menichetti F et al. Int J Antimicrob Agents. 2018 Aug;52(2):127-134

Relationship between antimicrobial consumption
& antimicrobial resistance in humans & animals

Antibiotic choice depending on genotype
(Enterobacteriaceae)
ESBL AmpC KPC OXA NDM
Carbapenems
Ceftazidime-avibactam
Ceftolozane-tazobactam
Cefepime
Colistin
Tigecycline
Aminoglycosides
Piperacillin/tazobactam
Fosfomicina

Appropriate use of antimicrobials
Surrogate markers: procalcitonin (PCT)
• PCT help to identify bacterial infections
• PCT-guided antibiotic therapy significantly reduce: days of
antibiotic exposure, drug-related side-effects and rate of
antibiotic resistance.
• The early dynamic of PCT values (48-72 hrs) is a reliable
predictor of survival and efficacy of antibiotic therapy.
• PCT may help to distinguish between Gram-neg. & Gram-pos.
infection and support the suspicion of fungal infection
• Low PCT levels in sepsis suggest: deep abscesses,
meningitis/ventriculitis, endocarditis, atypical pneumonia,
etc.
Menichetti F et al. Int J Antimicrob Agents. 2018 Aug;52(2):127-134

ANTIBIOTIC EXPOSURE BY TREATMENT GROUP
AND CAP SEVERITY
(From Esposito S et al., Resp Med 2011)

Potential US FDA approval of selected new
antibiotics according to their perceived
innovation potential
(From Theuretzbacher U et al., Clin Microbiol Infect 2017)

Take home messages
• AMR: a call for action
• A multi-level committment (strong political
advocacy and clear institutional engagement)
• Multidisciplinary clinical governance
• ASP for hospital and community setting
• Synergism between scientific society &
political/institutional level

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