Repository of Research and Investigative Information

Repository of Research and Investigative Information

Hormozgan University of Medical Sciences

BacterialContaminationof VentilatorsintheIntensiveCareUnit

(2017) BacterialContaminationof VentilatorsintheIntensiveCareUnit. Trauma monthly.

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Abstract

Objectives:Toinvestigatethelevelofbacterialcontaminationinventilationdevicesafterbeingconnectedtoheadtraumapatients withconfirmedventilator-associatedpneumonia. Methods:Thisprospective,crosssectionalstudywascarriedoutatShahidMohammadihospital,Bandar-eAbbas,Iran.Samplesfor assessing the contamination of ventilators were obtained from expiratory and inspiratory tube insertion sites before connecting thedevicetothepatients. Thepatientswerethenobservedforthedevelopmentof ventilator-associatedpneumoniaandwereen- rolledinthestudyifconsideredeligible.Samplingwasrepeatedrightafterdisconnectingthepatient.Thefollowingvariableswere obtainedfromeachpatient: gender, age, GlasgowComaScaleuponhospitalization, lengthof stayintheintensivecareunit(ICU), andmortality. Results: A total of 33 patients, including 26 men and 7 women, were enrolled in the study. There was no significant association between ventilation contamination and time of sampling (before or after ventilation) in the evaluated sites (P > 0.05). However, based on McNemer’s test for equality of frequencies, the prevalence of positive culture after disconnecting the device from the patients(60.6%)wasnotthesameastheprevalencebeforebeingconnectedtothepatients(21.2%)ininspiratorytubeinsertionsites (P = 0.002). Also, in both sites, the variety and pathogenicity of microorganisms after disconnecting the device were higher than thoseof microorganisms,colonizedfromsampleswhichwereobtainedbeforeconnectingthedevice. Conclusions: Thefindingsof thepresentstudyshowedthatmechanicalventilationof patientswithpulmonaryinfectionleadsto thecontaminationofventilators.Thesefindingssuggesttheneedfordesigningandimplementingnewmeasures,whichareeasily available in developing and resource-deficient countries in order to reduce the contamination of ventilation devices and prevent cross-contamination.

Item Type: Article
Keywords: Ventilator-AssociatedPneumonia,EquipmentContamination,ArtificialRespiration
Subjects: anesthesiology
anesthesia
Divisions: Research Vice-Chancellor Department > Anaesthesiology, Critical Care and Pain Management Research Center
Depositing User: مركز تحقيقات بیهوشی و مراقبتهای ویژه
URI: http://eprints.hums.ac.ir/id/eprint/3046

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