Improving Environmental Disinfection through Objective Assessments at a Large Teaching Hospital

Abstract

BACKGROUND: Healthcare-associated infections (HAIs) are costly and impact patient morbidity and mortality. Environmental disinfection and cleaning plays a key role in the prevention of HAIs. We aimed to establish an objective evaluation of thoroughness of disinfection and cleaning (TDC) after patient discharge and to evaluate the impact of an assessment program on high-touch surfaces TDC. METHODS: In April 2018, we assessed baseline TDC of environmental surfaces. Fluorescent markers were used for monitoring high-touch surfaces in patient rooms after discharge. TDC scores were defined as the percentage of cleaned surfaces out of the total of examined surfaces. Subsequently, we established routine educational sessions with environmental services staff and developed visual guides where we emphasized the importance of disinfecting high-touch surfaces. A team of two people, one Infection Preventionist and one Environmental Services manager, evaluated TDC on randomly selected units. Direct feedback was provided to staff in rooms with missed opportunities. RESULTS: At baseline, we assessed 401 high-touch surfaces and the TDC score was 51%. After the implementation of the educational sessions, visual guides, and the assessment program, TDC scores increased to 87% (216/247 surfaces), 92% (245/267 surfaces), and 94% (193/205 surfaces) in the following three months. CONCLUSIONS: We improved cleaning of high-touch surfaces by implementing routine educational sessions paired with an objective assessment program. Prospective standardized assessment of cleaning is a key component of infection prevention in health care settings.