[논문]영상의학과 촬영실의 미생물 분포에 관한 연구

장정현; 양은주; 김영재

doi:10.7742/jksr.2021.15.2.165

초록
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영상의학과의 일반방사선 촬영실의 2차 원내감염(교차감염)의 방지를 위해 방사선사, 환자와 직접적인 밀접접촉부분의 미생물을 측정하였다. 방사선사 측은 방사선 발생장치의 엑스선튜브 손잡이, 환자측은 턱받침대, 가슴닿는 곳, 손잡이를 중심으로 미생물을 측정하여 배양하였다. 에니오설프로 소독한 후 멸균배지를 이용해 수합하고 동정하여 미생물을 확인하였다. 동정결과 방사선사 측은 Proteus mirabilis, Staphylococc us epidermidis, Bacillus spp., Candida spp., 103CFU, 환자측은 Proteus mirabilis, Enterococcu faecium, Pseudom onas aeruginosa, NTM, Candida spp. 가 103~5 CFU 검출 되었으며 환자측에서 수합된 미생물의 종류와 수가 더 많이 관찰되었다. 다행히 해당되는 미생물은 대부분 피부표면에 있는 것들로 관찰되었으며 원내감염관리 규칙에 의거하여 소독한다면 대부분 사멸하는 것으로 알려져 있지만 면역력이 떨어진 환자의 경우 소량의 노출로도 치명적일 수 있으므로 주의해야 한다. 특히, 환자와 접촉한 부분의 미생물이 높게 측정된 것을 보아 방사선사 및 수시출입자 등은 환자와 접촉이 잦은 기구 및 손잡이 등의 부분에 대해 소독을 철저히 해야 할 것으로 사료된다. 기존 에니오설프 연구를 기반으로 현재연구를 확대하여 원내 방사선 검사실의 미생물 안전관리의 중요성을 알리는 목적으로 조사하였고 병원 2차 및 N차 감염병 예방을 위한 기본적인 자료가 될 수 있을 것이다.

Abstract ▼ AI-Helper

To prevent the secondary hospital-acquired infection (cross-infection) from occurring in the general radiographic room in the department of radiology, the microbial measurement was conducted at the points making direct close contact with radiologists and patients. For the case of radiologists, the m...

To prevent the secondary hospital-acquired infection (cross-infection) from occurring in the general radiographic room in the department of radiology, the microbial measurement was conducted at the points making direct close contact with radiologists and patients. For the case of radiologists, the microbial measurement and incubation were focused on the x-ray tube handle of the radiation generating device, and, for the case of patients, the microbial measurement and incubation were focused on the chin supporting device, chest-contact point, and handle. Once disinfected with Aniosurf, the sterilized media were gathered and identified, and the microorganisms were confirmed. Based on the identification results, it was confirmed that the points making direct close contact with radiologists showed a value of 103 CFU for Proteus mirabilis, Staphylococcus epidermidis, Bacillus spp. and Candida spp., and that the points making direct close contact with patients showed a value of 103~5 CFU for Proteus mirabilis, Enterococcu faecium, Pseudomonas aeruginosa, NTM(Non-Tuberculosis Mycobacteria) and Candida spp.. It was also confirmed that the types and number of microorganisms gathered from the points making direct close contact with patients were greater. Fortunately, most of the involved microorganisms were observed to be on the skin surface and are known to become extinct when disinfected in accordance with the hospital-acquired infection control rules. However, since even minor exposure to such microorganisms may be lethal for patients with reduced immunity, caution must be taken. In particular, since the points making contact with patients showed a high level of microbial measurement, it was thought that it would be necessary for radiologists and personnel having frequent access to strictly disinfect the parts, such as instruments and handles, making frequent contact with patients. The purpose of this study was to announce the importance of safe microbial control in the radiographic inspection room in hospital, and this study is expected to be used as the baseline data for preventing hospital-acquired secondary infection and Nth infectious diseases.

주제어

표/그림 (5)

그림 Fig. 1. (A) X-ray tube handle, (B) Chin region, (C) Chest region, (D) Palm region.^[5]
그림 Fig. 2. Transystem TM.^[5]
그림 Fig. 3 Microbial identification result.
표 Table 1. Microorganism detection by site
표 Table 2. Microorganism detection by site(Pt)

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제안 방법

The microbial identification was conducted at the points making frequent contact with radiologists and with patients during radiological imaging examination (x-ray imaging), and the results were as follows. The collected samples were classified through the dust spot method, and the bacteria of the number of microorganisms were proposed using the colony forming unit(colony forming unit: CFU/plate).
The purpose of this study was to classify the points that make frequent contact with patients and with radiologists during such x-ray imaging, to analyze the types of microorganisms existing at those points, and to collect and analyze the data for preventing hospital-acquired cross-infection in the future.

대상 데이터

To conduct this study, Hospitals A and B located in Daegu were selected the experiment subjects, and the microbial sampling was conducted from September 2020 to October 2020.

성능/효과

Although most of them were revealed as microorganisms that become extinct as disinfection takes place, it is necessary to be aware that the secondary infection may occur in hospital at all times
Based on the results acquired from the microbial measurement focused on points making frequent contact with radiologists and with patients during radiological imaging, it was confirmed that proteus mirabilis, staphylococcus epidermidis, bacillus spp., and candida spp. were detected from the points making contact with radiologists, and that proteus mirabilis, enterococcu faecium, pseudomonas aeruginosa, NTM, and candida spp.
Although most of them were revealed as microorganisms that become extinct as disinfection takes place, it is necessary to be aware that the secondary infection may occur in hospital at all times. In particular, since the types and number of microorganisms detected from the points making contact with patients were greater than those detected from the points making contact with radiologists, it is thought that it would be necessary to make stricter efforts to control infections resulting from the equipment with which patients make more frequent contact.
based on the results acquired in this study, it was confirmed that opportunistic bacteria exist at points making frequent contact with radiologists and with patients, and it was determined that it would be necessary to comply with the hand sanitation and in-hospital disinfection rules to prevent hospital-acquired infections.
, and candida spp. were detected from the points making contact with radiologists, and that proteus mirabilis, enterococcu faecium, pseudomonas aeruginosa, NTM, and candida spp. were detected from the points making contact with patients.

참고문헌 (17)

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원문보기 상세보기
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영상의학과 촬영실의 미생물 분포에 관한 연구
A Study on the Distribution of Microorganisms in Department of Radiography 원문보기

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영상의학과 촬영실의 미생물 분포에 관한 연구 A Study on the Distribution of Microorganisms in Department of Radiography 원문보기

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영상의학과 촬영실의 미생물 분포에 관한 연구
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