Background: Nosocomial infections have become a major challenge in healthcare facilities as they affect the quality of medical care. Radiological imaging plays a crucial role in medical diagnosis. However, the equipment and accessories used increase the risk of transmission of nosocomial bacteria. Objective: This study aims to reveal the extent and nature of microbiological contamination in four hospital diagnostic imaging departments to determine their potential role in the spread of nosocomial bacteria and to evaluate the effectiveness of routine daily disinfection practices in controlling microorganisms in diagnostic imaging departments. Methods & Results: In each department, swabs were taken from the surfaces of selected parts of the equipment and accessories three times a day (early morning, noon, and evening) for five consecutive days. Bacteria were isolated from 65 swabs (36.1% of all samples). The bacteria were isolated 3 times (4.6%) in the morning, 16 times (24.6%) at midday, and 46 times (70.7%) in the evening. The bacteria isolated were Escherichia coli (isolated 34 times; 52.3%), Staphylococcus aureus (20 times; 30.8%), Staphylococcus epidermidis (6 times; 9.3%), and Klebsiella species (5 times; 7.7%). Discussion & Conclusion: Findings demonstrated that radiology equipment and accessories are not free of bacteria and further improvements in the sterilization and disinfection of radiology equipment and accessories are needed to protect staff and patients from nosocomial infections.
References
[1]
Khan, H.A., Baig, F.K. and Mehboob, R. (2017) Nosocomial Infections: Epidemiology, Prevention, Control and Surveillance. Asian Pacific Journal of Tropical Biomedicine, 7, 478-482. https://doi.org/10.1016/j.apjtb.2017.01.019
[2]
World Health Organization (2016) Report on the Burden of Endemic Health Care-Associated Infection Worldwide. https://iris.who.int/bitstream/handle/10665/80135/?sequence=1
[3]
Balkhy, H.H., Cunningham, G., Chew, F.K., Francis, C., Al Nakhli, D.J., Almuneef, M.A., et al. (2006) Hospital and Community-Acquired Infections: A Point Prevalence and Risk Factors Survey in a Tertiary Care Center in Saudi Arabia. International Journal of Infectious Diseases, 10, 326-333. https://doi.org/10.1016/j.ijid.2005.06.013
[4]
Mattar, E., Hammad, L.F., Ahmad, S. and El-Kersh, T.T. (2010) An Investigation of the Bacterial Contamination of Ultrasound Equipments at a University Hospital in Saudi Arabia. Journal of Clinical and Diagnostic Research, 4, 2685-2690.
[5]
Gaid, E., Assiri, A., McNabb, S. and Banjar, W. (2017) Device-Associated Nosocomial Infection in General Hospitals, Kingdom of Saudi Arabia, 2013-2016. Journal of Epidemiology and Global Health, 7, S35-S40. https://doi.org/10.1016/j.jegh.2017.10.008
[6]
Al-Tawfiq, J.A., Amalraj, A. and Memish, Z.A. (2013) Reduction and Surveillance of Device-Associated Infections in Adult Intensive Care Units at a Saudi Arabian Hospital, 2004-2011. International Journal of Infectious Diseases, 17, e1207-e1211. https://doi.org/10.1016/j.ijid.2013.06.015
[7]
Dauda, S.S., Sidi, M., Oretokun, A., Mohammed, H. and Dare, A. (2016) Radiological Equipment and Accessories as Sources of Nosocomial Infection.
[8]
World Health Organization (2004) Practical Guidelines for Infection Control in Health Care Facilities. http://www.wpro.who.int/publications/docs/practical_guidelines_infection_controlpdf
[9]
Boyle, H. and Strudwick, R.M. (2010) “Do Lead Rubber Aprons Pose an Infection Risk?” Radiography, 16, 297-303. https://doi.org/10.1016/j.radi.2010.03.002
[10]
Klevens, R.M., Edwards, J.R., Richards, C.L., Horan, T.C., Gaynes, R.P., Pollock, D.A., et al. (2007) Estimating Health Care-Associated Infections and Deaths in U.S. Hospitals, 2002. Public Health Reports, 122, 160-166. https://doi.org/10.1177/003335490712200205
[11]
Dancer, S.J. (2014) Controlling Hospital-Acquired Infection: Focus on the Role of the Environment and New Technologies for Decontamination. Clinical Microbiology Reviews, 27, 665-690. https://doi.org/10.1128/cmr.00020-14
[12]
Xu, M., Fralick, D., Zheng, J.Z., Wang, B., Tu, X.M. and Feng, C. (2017) The Differences and Similarities Between Two-Sample T-Test and Paired T-Test. Shanghai Arch Psychiatry, 29, 184-188.
[13]
Giacometti, M., Gualano, M., Bert, F., Minniti, D., Bistrot, F., Grosso, M., et al. (2014) Microbiological Contamination of Radiological Equipment. Acta Radiologica, 55, 1099-1103. https://doi.org/10.1177/0284185113512481
[14]
Sartoretti, T., Sartoretti, E., Bucher, C., Doert, A., Binkert, C., Hergan, K., et al. (2017) Bacterial Contamination of Ultrasound Probes in Different Radiological Institutions before and after Specific Hygiene Training: Do We Have a General Hygienical Problem? European Radiology, 27, 4181-4187. https://doi.org/10.1007/s00330-017-4812-1
[15]
Fox, M. and Harvey, J.M. (2008) An Investigation of Infection Control for X-Ray Cassettes in a Diagnostic Imaging Department. Radiography, 14, 306-311. https://doi.org/10.1016/j.radi.2007.09.004
[16]
Ochie, K. and Ohagwu, C. (2009) Contamination of X-Ray Equipment and Accessories with Nosocomial Bacteria and the Effectiveness of Common Disinfecting Agents. African Journal of Basic and Applied Sciences, 1, 31-35.
[17]
Le Frock, J.L., Babu, J.P. and Klainer, A.S. (1978) Nosocomial Infection. Radiology Department as Source. New York State Journal of Medicine, 78, 2039-2043.
[18]
Lawson, S.R., Sauer, R. and Loritsch, M.B. (2002) Bacterial Survival on Radiographic Cassettes. Radiologic Technology, 73, 507-510.
[19]
Khan, H.A., Ahmad, A. and Mehboob, R. (2015) Nosocomial Infections and Their Control Strategies. Asian Pacific Journal of Tropical Biomedicine, 5, 509-514. https://doi.org/10.1016/j.apjtb.2015.05.001
[20]
Lee, A.S., de Lencastre, H., Garau, J., Kluytmans, J., Malhotra-Kumar, S., Peschel, A., et al. (2018) Methicillin-Resistant Staphylococcus Aureus. Nature Reviews Disease Primers, 4, Article No. 18033. https://doi.org/10.1038/nrdp.2018.33
[21]
Vuong, C. and Otto, M. (2002) Staphylococcus Epidermidis Infections. Microbes and Infection, 4, 481-489. https://doi.org/10.1016/s1286-4579(02)01563-0
[22]
Long, S.S., Prober, G.C. and Fischer, M. (2018) Principles and Practices of Pediatric Infectious Diseases. 5th Edition, Elsevier, 138.
[23]
Iyer, A., Baghallab, I., Albaik, M. and Kumosani, T. (2014) Nosocomial Infections in Saudi Arabia Caused by Methicillin Resistance Staphylococcus aureus (MRSA). Clinical Microbiology, 3, 146.
[24]
Weinstein, R.A. and Hota, B. (2004) Contamination, Disinfection, and Cross-Colonization: Are Hospital Surfaces Reservoirs for Nosocomial Infection? Clinical Infectious Diseases, 39, 1182-1189. https://doi.org/10.1086/424667
