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European Surveillance of Surgical Site Infections and ICU-acquired Infections, 2004-2008 Carl Suetens Surveillance Unit European Centre for Disease Prevention.

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Presentation on theme: "European Surveillance of Surgical Site Infections and ICU-acquired Infections, 2004-2008 Carl Suetens Surveillance Unit European Centre for Disease Prevention."— Presentation transcript:

1 European Surveillance of Surgical Site Infections and ICU-acquired Infections, Carl Suetens Surveillance Unit European Centre for Disease Prevention and Control 7th HIS International Conference, Liverpool, October 2010

2 Standardized surveillance of Healthcare- Associated Infections in European hospitals Surveillance of Surgical Site Infections (SSI) Surveillance of ICU-acquired Infections (ICU) Point Prevalence Surveys as alternative to hospital-wide surveillance of all HAI types (PPS)

3 Standardisation of SSI & ICU surveillance methods Methodological differences between national protocols: –Fair agreement in 2000 for SSI surveillance (7 countries), similar to CDC/NNIS methodology –Larger differences for surveillance of ICU-acquired infections in 2000 (5 countries, 4 patient-based, 1 unit- based) Agree on common surveillance methodology and case definitions: questionnaire (2000), meetings ( ), final protocols Work towards standardized interpretation of standard methodology Develop indicators that take into account inter-country differences in methodology and case-mix


5 Surveillance of Surgical Site Infections: EU methods vs CDC/NHSN Same as CDC/NHSN methodology, except: –Hospital discharge date required –Options: ICD9-CM codes, post-discharge date & status –Selection of procedures: CABG, CHOL, COLO, CSEC, HPRO, KPRO, LAM Indicators: –% SSI within 30 d / 1 year –% in-hospital SSI (post-discharge excluded) –Incidence density: # in-hospital SSI/1000 patient-days: Adjustment for differences in post-discharge surveillance Adjustment for differences in post-operative length of stay Incidence density for Deep-Organ/Space infections only: adjustment for differences in reporting superficial infections –Stratification per NNIS risk index for all indicators

6 European surveillance of Surgical Site Infections : protocol analysis, questionnaire, meetings 6 countries in 2000 => 12 countries (15 networks), 1422 hospitals in 2008

7 SSI cumulative incidence by operation category and year,

8 Surveillance of SSI in hip prosthesis,

9 Differences in post-discharge surveillance and type of SSI Post-discharge SSI included Post-discharge SSI excluded Percentage of SSI detected after discharge from the hospital by surgical procedure

10 EU reference tables, e.g. SSI incidence density in HPRO

11 European surveillance of ICU-acquired infections : protocol analysis, questionnaire, retrospective data analysis, meetings Collaboration with ESICM 654 hospitals from 12 countries in levels: –Unit-based (minimal data, trends) –Patient-based: risk adjustment, Standardised Infection Ratio (Observed/Expected)

12 Surveillance of ICU-acquired infections

13 Patient-based surveillance in the ICU

14 Methodology of EU surveillance of ICU-acquired infections Patients staying less than 3 days in the ICU excluded from denominators (different from US-NHSN/DE-KISS) Length of stay in the ICU (days) by country

15 Methodology of EU surveillance of ICU- acquired infections Case definitions differ from CDC/NHSN definitions: –Bloodstream Infections: include secondary BSI –Pneumonia: based on CDC PNU definition, not identical Intubator-Associated (IAP) vs Ventilator-Associated (VAP) Definition of nosocomial or ICU-acquired: >48 h, in practice > Day 2, instead of not present or in incubation at admission ECDC outsourced Concordance study of HAI case definitions CDC/NHSN vs. IPSE/HELICS ( , P. Gastmeier et al): Quantify difference in case classification (concordance) => kappa Results show excellent concordance (kappa>=0.99) for PN and primary BSI

16 HELICS case definition of pneumonia (2003) – also in ECDC PPS protocol X-ray(s) + clinical symptoms (t°/wbc + sput./ronchi…) PN1: protected sample + quantitative culture (10 4 CFU/ml BAL/10 3 PB,DPA) PN2: non-protected sample (ETA) + quantitative culture (10 6 CFU/ml) PN3: alternative microbiological criteria PN4: sputum bacteriology or non-quantitative ETA PN5: no microbiological criterion

17 Differences in diagnostic practices of ICU-acquired pneumonia, 2008

18 Date of onset pneumonia

19 Micro-organisms isolated in ICU-acquired infections, Pneumonia Bloodstream infections

20 EU reference tables, e.g. device-adjusted ICU-acquired pneumonia rates

21 Support to HAI surveillance : on-site HAI surveillance workshops HAI surveillance workshop, Sofia, Nov 2009 Hungarian HELICSwin, Budapest workshop, June 2009 Technical support visit to help set up HAI surveillance networks (4 in 2010) 2 x ½ day workshop Intensive Care (ICU), Surgical Site Infections (SSI) or both Typically 20 participants from hospitals Including case studies of HAI case definitions and computer exercises (HELICSwin) + support to national coordination team & installation of software tools

22 EU HAI surveillance integrated in TESSy TESSy = The European Surveillance System = ECDCs online database, upload and reporting system for all communicable diseases under surveillance Integration of all dedicated surveillance networks October (4-8/10): HAI TESSy training for national surveillance coordinators and data managers Pre-TESSY

23 HAI surveillance: ICU & SSI now integrated in ECDCs TESSy system

24 From IPSE to HAI-Net: What has changed? Naming conventions: –Healthcare-Associated Infections: HAI instead of HCAI –IPSE => HAI-Net –Unit-based protocols: level 1 => light –Patient-based protocols: level 2 => standard (full) Changes agreed at HAI surveillance Annual Meeting: –SSI: Light version, coverage, post-discharge method –ICU: Some variables/options dropped, AMR target list –New minimal AMR marker set (PPS)

25 Conclusions Standardized surveillance of surgical site infections and ICU-acquired infections: based on HELICS/IPSE network, now continued by ECDC 27+ countries = 27+ opinions, but large majority in favour of agreeing on single method Need for extension of surveillance, but setting up HAI surveillance networks requires important resources (hospitals, national coordination) training of trainers and on-site training translation of protocols free software tools, multilingual Standardized methods/definitions standardized surveillance practices! From January 2011: ECDC HAI surveillance website + interactive data analysis

26 Thank you to all national surveillance networks and participating hospitals!

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