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0.1% 클로르헥시딘을 이용한 구강간호와 생리식염수를 이용한 구강간호의 구강내 병원균 발생빈도 비교
이은남(Lee Eun-Nam),주현옥(Ju Hyeon-Ok),박희숙(Park Hee-Sook),김수미(Kim Soo-Mi),박미자(Park Mi-Ja),이영진(Lee Young-Jin),장미라,안향남(An Hyang-Nam) 기본간호학회 2006 기본간호학회지 Vol.13 No.3
Purpose: The purpose of this study was to compare the effects of oral hygiene with 0.1% chlorhexidine or with normal saline on the incidence of pathogens in the oral cavity of patients in Intensive Care Units (ICU). Method: A quasi experimental design with non-equivalent control group and non-synchronized design was used. For the study 46 patients were recruited from a university hospital (24 for the experimental group, 22 for the control group). patients in the experimental group received mouth care with 0.1% chlorhexidine gluconate and those in the control group received mouth care with normal saline twice a day for 7 days in a row. Oral samples were taken for bacterial cultures on admission day, the 4th day and the 7th day for both groups. Results: The incidence of oral pathogens decreased in the experimental group, and increased in the control group. There was no significant difference in the incidence of oral pathogens between the two groups. However oral hygiene using 0.1% chlorhexidine gluconate decreased the incidence of oral pathogens significantly for patients who already had pathogenic bacteria in their mouths on the admission day. Conclusion: The results suggest that mouth care with 0.1% chlorhexidine is effective for decreasing the incidence of oral infection for ICU patients who have oral infections.
김희정 ( Hee Jung Kim ),이석언 ( Sook Eon Lee ),홍현기 ( Hyeon Ki Hong ),김덕현 ( Deok Hyun Kim ),안중우 ( Jung Woo An ),최종순 ( Jong Soon Choi ),남주현 ( Ju Hyun Nam ),이문순 ( Moon Soon Lee ),우선희 ( Sun Hee Woo ),정근욱 ( Keu 한국환경농학회 2012 한국환경농학회지 Vol.31 No.2
본 연구에서는 산업폐수로부터 분리한 3가지 종의 인 제거율을 확인하였다. 3 가지 분리된 균을 동정한 결과 A1균은 Stenotrophomonas maltophilia strain CUPS 3, A2균은 Rhodococcus erythropolis strain Sco-C01, A3균은 Bacillus sp. 3434BRRJ이었다. 3 가지 분리된 균의 인 제거 및 경유분해를 확인한 결과 인 제거율은 Bacillus sp. 3434BRRJ > Stenotrophomonas maltophilia strain CUPS균 > Rhodococcus erythropolis strain Sco-C01균 순으로 높은 것으로 나타났으며 제거율은 약 99%, 50%, 20%로 확인되었다. 따라서 이 후 실험은 인 제거율이 가장 높았던 Bacillus sp. 3434BRRJ를 가지고 실험하였다. Bacillus sp. 3434BRRJ의 인 제거를 확인하기 위하여 온도별 (15, 25 그리고 30 °C), 인농도별 (20, 30 그리고 40mg/L) 그리고 산소조건 (호기, 혐기/호기조건) 및 탄소원을 달리하여 실험하였다, 그 결과 Bacillus sp. 3434BRRJ는 30°C에서 인 제거가 가장 좋았으며 20 mg/L의 인은 약 99% 처리하였고 혐기조건을 거치고 탄소원으로 acetate와 glucose를 혼합하여 처리하였을 때 가장 효율이 좋은 것으로 나타났다. 본 연구에서는 Bacillus sp. 3434BRRJ의 인 제거를 확인하였다. 균의 생장이 높을수록 인의 제거율은 높았으며, 미생물을 이용한 환경오염물질의 제거에 있어서 가장 중요한 것은 미생물의 활성을 높이는 환경조건을 제공하는 것이다. Background: The removal of phosphate (P) in the wastewater is essential for the prevention of eutrophication in the river and stream. This study was initiated to evaluate the P removal by three strains of bacteria isolated from industrial wastewater, The three strains of bacteria, A1, A2, and A3, isolated were identified as Stenotrophomonas maltophilia strain CUPS 3, Rhodococcus erythropolis strain Sco-C01, Bacillus sp. 3434BRRJ, respectively. METHODS AND RESULTS: The experiments evaluating the effects of temperature, P concentration, aeration, and carbon sources on P removal by Bacillus sp. 3434BRRJ were performed in the following conditions: temperature, 15, 25 and 30°C; P concentrations, 20, 30, and 40 mg/L; oxygen condition, aerobic, anaerobic/aerobic conditions; carbon sources, glucose, acetate and mixture of glucose and acetate. As a result, the best optimum conditions for P removal by Bacillus sp. 3434BRRJ were as follows: temperature, 30°C; P concentration, 20 mg/L; carbon sources, mixture of glucose and acetate; oxygen concentration, anaerobic and aerobic conditions. The P removal efficiencies by Bacillus sp. 3434BRRJ, Stenotrophomonas maltophilia strain CUPS, and Rhodococcus erythropolis strain Sco-C01 were 99%, 50%, 20%, respectively. CONCLUSION: As a result, the best optimum conditions for P removal by Bacillus sp. 3434BRRJ selected and used in this study were as follows: temperature, 30°C; P concentration, 20 mg/L; carbon sources, mixture of glucose and acetate; oxygen concentration, anaerobic and aerobic conditions.