تقييم فاعلية بعض المطهرات و المعقمات على البكتيريا الزائفة (Pseudomonas)‎ المعزولة من وحدة العناية المركزة للمواليد في مستشفى مصراتة المركزي-ليبيا

Abstract EN

This study aimed to evaluate the effectiveness and impact of some disinfectants and sterilizers used at health facilities, especially in Misurata Central Hospital, Libya.

The study examined the concentrations prepared for usage at these facilities and the time factor of their effectiveness on a group of Pseudomonas bactcria isolated from the Maternity Department and the Neonatal Intensive Care Unit in this Hospital (11 October 2017 to 8 March 2018).

The isolated bactcria species were: Pseudomonas spp, Pseudomonas aeruginosa, Pseudomonas pseudomallei, Pseudomonas cepacia, Pseudomonas fluorescens, Pseudomonas luteola.

Method: The study used disinfectants impregnated with filter paper discs (disk diffusion).

The disinfectants used were: Ethanol, NaCIO, Propanol AF, Desrcson AF, Cidex, Dccosept, Minuson AF and Dettol.

Results: The results showed a delay in the effectiveness of these sterilizers.

None of them showed any effect during the first 20 minutes of exposure.

The most impactful disinfectant at 20 minutes was Cidex against the three types of bacteria: Pseudomonas cepacia, Pseudomonas Jluorescens, and Pseudomonas pseudomallei.

Twenty four hours later, good efficacy was observ ed for most of the sterilizers such as Dccosept, NaCIO, Dettol and Desrcson AF, but not on all types of bacteria.

Propanol AF sterilizer showed good efficacy on all species, while Ethanol showed slight results starting from minute 20.

However, Minuson sterilizer showed no effects on these species.

The diameter of the inhibition area on these types of bactcria ranged from 3 mm to 2.5 cm.