Walter Zingg

Dr. Walter Zingg


Research Focus & Metrics

Academic Career Length

20Years (2007-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
10 January 2017 in Antimicrobial Resistance & Infection Control
Verified
Journal Article
Open access
PDF file
TGthe WHO Guidelines Development Group
the WHO Guidelines Development Group
JSJulie Storr
Julie Storr
ATAnthony Twyman
Anthony Twyman
WZWalter Zingg
Walter Zingg
NDNizam Damani
Nizam Damani
BABenedetta Allegranzi
Benedetta Allegranzi
Health care-associated infections (HAI) are a major public health problem with a significant impact on morbidity, mortality and quality of life. They represent also an important economic burden to health systems worldwide. However, a large proportion of HAI are preventable through effective infection prevention and control (IPC) measures. Improvements in IPC at the national and facility level are critical for the successful containment of antimicrobial resistance and the prevention of HAI, including outbreaks of highly transmissible diseases through high quality care within the context of universal health coverage. Given the limited availability of IPC evidence-based guidance and standards, the World Health Organization (WHO) decided to prioritize the development of global recommendations on the core components of effective IPC programmes both at the national and acute health care facility level, based on systematic literature reviews and expert consensus. The aim of the guideline development process was to identify the evidence and evaluate its quality, consider patient values and preferences, resource implications, and the feasibility and acceptability of the recommendations. As a result, 11 recommendations and three good practice statements are presented here, including a summary of the supporting evidence, and form the substance of a new WHO IPC guideline.

1 January 2009 in International Journal of Antimicrobial Agents
Verified
Journal Article
Closed access
WZWalter Zingg
Walter Zingg
DPDidier Pittet
Didier Pittet

1 January 2020 in Annals of Intensive Care
Verified
Journal Article
Open access
PDF file
jean-francois timsitjean-francois timsit
jean-francois timsit
JBJulien Baleine
Julien Baleine
LBLouis Bernard
Louis Bernard
SCSilvia Calvino-Gunther
Silvia Calvino-Gunther
Michel DARMONMichel DARMON
Michel DARMON
VMVirginie Maxime
Virginie Maxime
The French Society of Intensive Care Medicine (SRLF), jointly with the French-Speaking Group of Paediatric Emergency Rooms and Intensive Care Units (GFRUP) and the French-Speaking Association of Paediatric Surgical Intensivists (ADARPEF), worked out guidelines for the management of central venous catheters (CVC), arterial catheters and dialysis catheters in intensive care unit. For adult patients: Using GRADE methodology, 36 recommendations for an improved catheter management were produced by the 22 experts. Recommendations regarding catheter-related infections’ prevention included the preferential use of subclavian central vein (GRADE 1), a one-step skin disinfection(GRADE 1) using 2% chlorhexidine (CHG)-alcohol (GRADE 1), and the implementation of a quality of care improvement program. Antiseptic- or antibiotic-impregnated CVC should likely not be used (GRADE 2, for children and adults). Catheter dressings should likely not be changed before the 7th day, except when the dressing gets detached, soiled or impregnated with blood (GRADE 2− adults). CHG dressings should likely be used (GRADE 2+). For adults and children, ultrasound guidance should be used to reduce mechanical complications in case of internal jugular access (GRADE 1), subclavian access (Grade 2) and femoral venous, arterial radial and femoral access (Expert opinion). For children, an ultrasound-guided supraclavicular approach of the brachiocephalic vein was recommended to reduce the number of attempts for cannulation and mechanical complications. Based on scarce publications on diagnostic and therapeutic strategies and on their experience (expert opinion), the panel proposed definitions, and therapeutic strategies.

1 April 2017 in The Lancet Infectious Diseases
Verified
Journal Article
Open access
WZWalter Zingg
Walter Zingg
SHSusan Hopkins
Susan Hopkins
AGAngèle Gayet-Ageron
Angèle Gayet-Ageron
AHAlison Holmes
Alison Holmes
MSMike Sharland
Mike Sharland
DVDelphine VerjatTrannoy
Delphine VerjatTrannoy
In 2011-12, the European Centre for Disease Prevention and Control (ECDC) held the first Europe-wide point-prevalence survey of health-care-associated infections in acute care hospitals. We analysed paediatric data from this survey, aiming to calculate the prevalence and type of health-care-associated infections in children and adolescents in Europe and to determine risk factors for infection in this population. Point-prevalence surveys took place from May, 2011, to November, 2012, in 1149 hospitals in EU Member States, Iceland, Norway, and Croatia. Patients present on the ward at 0800 h on the day of the survey and who were not discharged at the time of the survey were included. Data were collected by locally trained health-care workers according to patient-based or unit-based protocols. We extracted data from the ECDC database for all paediatric patients (age 0-18 years). We report adjusted prevalence for health-care-associated infections by clustering at the hospital and country level. We also calculated risk factors for development of health-care-associated infections with use of a generalised linear mixed-effects model. We analysed data for 17 273 children and adolescents from 29 countries. 770 health-care-associated infections were reported in 726 children and adolescents, corresponding to a prevalence of 4·2% (95% CI 3·7-4·8). Bloodstream infections were the most common type of infection (343 [45%] infections), followed by lower respiratory tract infections (171 [22%]), gastrointestinal infections (64 [8%]), eye, ear, nose, and throat infections (55 [7%]), urinary tract infections (37 [5%]), and surgical-site infections (34 [4%]). The prevalence of infections was highest in paediatric intensive care units (15·5%, 95% CI 11·6-20·3) and neonatal intensive care units (10·7%, 9·0-12·7). Independent risk factors for infection were age younger than 12 months, fatal disease (via ultimately and rapidly fatal McCabe scores), prolonged length of stay, and the use of invasive medical devices. 392 microorganisms were reported for 342 health-care-associated infections, with Enterobacteriaceae being the most frequently found (113 [15%]). Infection prevention and control strategies in children should focus on prevention of bloodstream infections, particularly among neonates and infants. None.

1 April 2016 in Public Health
Verified
Journal Article
Closed access
WZWalter Zingg
Walter Zingg
ECEnrique Castro-Sánchez
Enrique Castro-Sánchez
FSF.V. Secci
F.V. Secci
RER. Edwards
R. Edwards
LDL.N. Drumright
L.N. Drumright
AHA.H. Holmes
A.H. Holmes

1 July 2009 in Critical Care Medicine
Verified
Journal Article
Closed access
WZWalter Zingg
Walter Zingg
AIAlexander Imhof
Alexander Imhof
MMMarco Maggiorini
Marco Maggiorini
RSReto Stocker
Reto Stocker
EKEmanuela Keller
Emanuela Keller
CRChristian Ruef
Christian Ruef
To study the impact of a teaching intervention on the rate of central venous catheter-related bloodstream infections (CRBSI) in intensive care patients. Prospective before/after interventional cohort study on medical and surgical intensive care units. University hospital with five adult intensive care units. All patients with a central venous catheter on the five ICUs from September to December 2003 (baseline period) and from March to July 2004 (intervention period). Educational program with teaching of hand hygiene, standards of catheter care, and preparation of intravenous drugs. The primary outcome variable was the rate of CRBSIs per 1000 catheter days during a baseline period of 4 months and an intervention period of 5 months. The secondary outcome variable was compliance with hand hygiene. Of the patients, 499 patients with 6200 catheter days in the baseline period and 500 patients with 7279 catheter days were monitored in the intervention period. The incidence density of CRBSI decreased from 3.9 per 1000 catheter days in the preintervention phase to 1.0 per 1000 catheter days in the intervention phase (p < 0.001). The risk for CRBSI was significantly higher in the baseline period in both univariate and multivariate analysis. Other independent risk factors were hospitalization in the medical ICU and male gender. Time to CRBSI was significantly longer in the intervention period (median 9 days vs. 6.5 days, respectively; p = 0.02). Compliance with hand hygiene improved slightly from 59% in the baseline period to 65% in the intervention period, but the rate of correct performance of the practice increased from 22.5% to 42.6% (p = 0.003). Evidence-based catheter-care procedures, guided by healthcare workers' perceptions and including bedside teaching, reduce significantly the CRBSI rate and demonstrate that improving catheter care has a major impact on its prevention.