Lecture critique – Évaluation de l'impact des savons utilisés pour le lavage des mains sur la dynamique des populations d'entérobactéries productrices et non productrices de carbapénèmase

Résumé

Titre de l'article sujet de la Lecture critique Boyle MA^a, Kearney AD^a, Sawant B^b, Humphreys H^a,c. Assessing the impact of handwashing soaps on the population dynamics of carbapenemase-producing and non-carbapenemase-producing Enterobacterales. J Hosp Infect. 2020 Aug;105(4):678-681. ^{a-Department of Clinical Microbiology, Royal College of Surgeons in Ireland –Education and Research Centre – Beaumont Hospital – Dublin – Irelandb-Department of Physiology and Medical Physics – Royal College of Surgeons in Ireland – Dublin – Irelandc-Department of Microbiology – Beaumont Hospital – Dublin – Ireland}

Carbapenemase-producing bacteria have persistent environmental reservoirs in handwashing sinks. This study assessed the impact of handwashing soaps on the population dynamics of carbapenemase-producing Enterobacterales (CPE) and non-CPE. A number of isolates were grown in minimal media with or without two hand soaps marketed for use in health care. Soap A led to increased growth of all isolates except for Escherichia coli. Soap B did not lead to increased growth. The main difference between the formulations was that Soap B contained DMDM hydantoin, a preservative agent and sensitizer. These results show that environmental persistence of CPE may be sustained by common handwashing practices with soap, but further research is required.