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STERI WORLD Newsletter

Main Articles

Photo: W. Michels

Comparative assessment of the effects of process parameters as well as of detergents on PTFE channels with regard to automated reprocessing of flexible endoscopes

The cleaning of PTFE tubes or the working channels of flexible endoscopes in washer-disinfectors (EWD), especially in the limit range of the protein elimination currently considered acceptable, has hardly been studied so far. In order to test and evaluate both the cleaning effect of... more

Photo by Instruclean

Testing integrating indicators in the RUMED

I would like to make some comments about information received referring tests that are sometimes done for chemical indicators in Hospitals Reprocessing Units for Medical Devices (RUMED), also known as CSSDs. These tests have been carried out on chemical integrating indicators (type 5)... more

Congress Reports

WFHSS congress in Mexico

WFHSS Congress in Mexico at the AMPE – El Día de los Muertos

WFHSS held in Mexico City from 31 October to 3 November 2018 Why do people travel to international congresses? Because they want to think beyond the limits of their own experiences and are eager to explore new horizons. That is also the case when it comes to medical device reprocessing,... more

Investigation of sterilization processes in healthcare institutions in Ulaanbaatar, Mongolia

T. Suvd-Erdene (1,4), T. Gantumur (1,4), W. Popp (2,4), N. Parohl ( 2,4*), C. Battogtokh (3)
Medclean LLC (1), HyKoMed GmbH (2), Mongolian National University of Medical Science (3), Mongolian Emergency Service Hospital Hygiene Project (MeshHp) (4)

Abstract: The high prevalence of hepatitis B and C in the Mongolian population is imputed not least to inadequate reprocessing of the medical devices used. For the purpose of the current study conducted in 77 healthcare institutions in Mongolia, 105 autoclaves, three ethylene oxide (EO) sterilizers, one formaldehyde (FO) and one plasma (H2O2) sterilizer were investigated with biological indicators. 8 % of the autoclaves and two of the three EO sterilizers showed unsatisfactory performance. The H2O2 and FO sterilizers tested inactivated the biological indicators. Of the autoclaves, the older Russian models produced better results than the modern sterilizers from China and Korea. That may be due to the long experience with the old Russian appliances, which have no pre-vacuum, unlike with the more complex modern sterilizers. Thermologgers were used for the first time (in Mongolia) for measurement of physical parameters such as pressure, holding time and temperature. The findings indicate that inadequate reprocessing of medical devices may impact the high colonization rates with hepatitis viruses in Mongolia.

Read more here.

Read more in Steri-World Issue 01/18.

Rapid enzymatic test system for the overall process efficacy of automated washer-disinfector processes for thermolabile endoscopes

Markus Wehrl*1, Amelie Achten1
(1 wfk-Cleaning Technology Institute e.V., Krefeld)

Background: Process challenge devices (PCDs) according to Annex 9 of the Guideline are used for the process control of the overall reprocessing efficacy for thermolabile endoscopes. The analysis of these PCDs is sophisticated and requires a microbiological laboratory. These PCDs are therefore not appropriate for routine controls in central sterile departments.

Read more.

Read more in Steri-World Issue 01/18.



“Real-life” hygiene routines in the operating room – a critical appraisal

Original article
Sabine Gleich, Bernarda Lindner
Department of Health and the Environment, City of Munich
Hyg Med 2016; 41(5): E71 - 79.

Background: In 2012, almost 51 million surgeries and medical procedures were carried out on hospital inpatients in Germany. According to national representative prevalence studies on nosocomial infections (NI) in Germany (NIDEP 1 study), postoperative surgical site infections (SSI) accounted for 16% of all NI. With 24.3%, the percentage of SSI in the second national prevalence study was again the highest of all NI. Preventative interventions in order to reduce the rate of postoperative wound infections have been described in scientific literature. In 2011, the Bavarian State Ministry for Health and Long-Term Care issued a joint obligatory concept for the surveillance and monitoring of infection control measures in healthcare institutions by public health authorities. Also in 2011, inspections of all surgery departments of acute care hospitals were prescribed as mandatory. For Bavaria this meant 288 surgical departments in 239 hospitals. In the state capital Munich, 59 surgical departments in 35 hospitals (= 21% of all Bavarian surgical departments) had to be inspected.

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Quality of structures, processes and outcomes of hygiene in outpatient surgery facilities – observations from 2014 and 2015

Original article
Delia Warburg, Sabine Gleich
Department of Health and the Environment, City of Munich
Hyg Med 2016; 41(6): E93 - E103.

Background: Ambulatory surgery has long been established as the third pillar in patient care besides inpatient treatment and conservative outpatient therapy. Facilities for outpatient surgery are especially common in areas of high population density. The supervisory public health authority for the city of Munich is the Department for Health and the Environment (RGU).

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Infection Control and Healthcare 1+2/2018

Special Issue: Hospital Hygiene in Europe


Infection prevention in Europe – EUNETIPS is celebrating its birthday
In autumn 2018, EUNETIPS (European Network to Promote Infection Prevention for Patient Safety) will celebrate the 10th anniversary of its foundation. This celebration will take place in early December 2018 in its founding city, Berlin. The Network was set up at the initiative of the German Society of Hospital Hygiene (DGKH) which had invited the national hospital hygiene specialist societies to Berlin. Today, there are 30 specialist societies from 21 countries in the Network and they meet twice yearly. Silvio Brusaferro, the Network coordinator, gives an overview of its history and future plans in this issue of the journal. This special edition also features reports on Italy, Spain, Netherlands, France and Sweden. Since the scope of the journal is limited, only a selection of countries could be featured. Therefore, interesting countries such as the United Kingdom (UK) or smaller countries such as Croatia or Greece are missing. The authors were proposed by the journal to focus on certain topics. Some did so, while others tended to give a chronological account of proceedings. This demonstrates that developments and the current situation can vary greatly between countries.

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Congress Reports

Infection Control, Sterilization & Decontamination in Healthcare, London

Endoscope reprocessing In his lecture John Mills (Steris) spoke about endoscopy. He pointed out that endoscopic, like minimally invasive surgery, procedures were being used increasingly, with ever smaller more complex instruments containing increasingly more electronic components.

One wondered whether high level disinfection was still adequate since the boundaries were increasingly more blurred between diagnostic and interventional, and as such also between non-critical and invasive, procedures. Mills continued by stating that while the Spaulding classification system was effective, modern surgical techniques were yet to be developed at the time of its formulation. The basic trend pointed towards endoscope sterilization, using a range of low-temperature sterilization processes.

H2O2 sterilizers with and without plasma had become established, largely thanks to their shorter cycle times compared with ethylene oxide or formaldehyde and the fact that they did not present a risk of toxicity to users or the environment. Gary Clarke (IHSS), too, spoke about endoscopy. Outsourcing of endoscope reprocessing (decontamination) to specialist establishments was one alternative to traditional organizational practices and also increased patient safety thanks to more specialized personnel. Besides, obtaining certification was a particular challenge for small reprocessing departments. Another benefit was the investment savings made and the space-saving advantages to the hospital. But one problem could be keeping the endoscopes sufficiently moist, especially with long transport routes, and reprocessing them as prescribed within three hours.

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