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Blood culture contamination in hospitalized pediatric patients: a single institution experience
민혜원,박정수,김동수,김기환 대한소아청소년과학회 2014 Clinical and Experimental Pediatrics (CEP) Vol.57 No.4
Purpose: Blood culture is the most important tool for detecting bacteremia in children with fever. However,blood culture contamination rates range from 0.6% to 6.0% in adults; rates for young childrenhave been considered higher than these, although data are limited, especially in Korea. This studydeterminedthe contamination rate and risk factors in pediatric patients visiting the emergency room(ER) or being admitted to the ward. Methods: We conducted a retrospective chart review of blood cultures obtained from children who visitedYonsei Severance Hospital, Korea between 2006 and 2010. Positive blood cultures were labeled astrue bacteremia or contamination according to Centers for Disease Control and Prevention/NationalHealthcare Safety Network definitions for laboratory-confirmed bloodstream infection, after exclusionof cultures drawn from preexisting central lines only. Results: Among 40,542 blood cultures, 610 were positive, of which 479 were contaminations and 131were true bacteremia (overall contamination rate, 1.18%). The contamination rate in the ER was significantlyhigher than in the ward (1.32% vs. 0.66%, P<0.001). The rate was higher in younger children(2.07%, 0.94%, and 0.61% in children aged <1 year, 1–6 years, and >6 years, respectively). Conclusion: Overall, contamination rates were higher in younger children than in older children, giventhe difficulty of performing blood sampling in younger children. The contamination rates from the ERwere higher than those from the ward, not accounted for only by overcrowding and lack of experienceamong personnel collecting samples. Further study to investigate other factors affecting contaminationshould be required.
즐거움 경험의 예기적/소비적 요소가 무쾌감성 우울 증상에 미치는 영향
민혜원,권석만,이슬아 한국임상심리학회 2019 Korean Journal of Clinical Psychology Vol.38 No.1
본 연구의 목적은 즐거움을 경험하는 능력의 감소로 폭넓게 정의되는 무쾌감성 우울(anhedonic depression)의 기저 특징을 탐색하고, 이에효과적으로 개입하기 위한 이론적인 기초를 제공하는 것이다. 이를 위해 즐거움 경험을 목표나 보상을 추구하는 접근 동기로서의 예기적즐거움과 목표 달성 이후 경험하는 소비적 즐거움이라는 두 가지 보상 처리 과정으로 구분한 뒤, 무쾌감성 우울과의 관련성을 밝히고자 하였다. 대학생 305명으로부터 수집한 자료를 통해 행동 활성화 체계 민감성과 심상화 능력, 마음챙김 주의자각, 무쾌감성 우울 간의 관계를분석한 결과, 예기적 즐거움은 행동 활성화 체계 민감성과 무쾌감성 우울, 심상화 능력과 무쾌감성 우울 간의 관계를 각각 완전매개 및 부분매개하는 것으로 나타났다. 또한 행동 활성화 체계 민감성의 영향을 통제하고도 심상화 능력은 예기적 즐거움에 유의미한 영향을 미치는 것으로 나타나, 무쾌감성 우울에 영향을 미치는 변인으로서 심상의 역할을 확인하였다. 마지막으로 소비적 즐거움은 마음챙김 주의자각과 무쾌감성 우울의 관계에서 조절변인 역할을 하는 것으로 나타났다. 이러한 연구 결과를 바탕으로 본 연구의 의의와 제한점에 대해 논의하였다.
미래에 대한 심상적 처리가 즐거움 경험 및 무쾌감성 우울에 미치는 영향
민혜원,권석만,이슬아 한국임상심리학회 2019 Korean Journal of Clinical Psychology Vol.38 No.2
The purpose of this study was to examine the effect of imagery processing on positive affect, behavioral motivation, and anhedonic symptoms. For this purpose, participants with anhedonic symptoms of depression were randomly assigned to one of two conditions, namely, an imagery processing condition (n=33) and a verbal processing condition (n=32). The experiment consisted of activity scheduling and practice designed to induce the pleasure experience regarding that activity in each processing mode. In both conditions, increases in positive affect and behavioral motivation, and a decrease in the level of anhedonic depression were observed. Participants in the imagery processing condition, however, reported greater enhancement in positive affect and anhedonic symptoms than did those in the verbal processing condition. Results indicate that boosting anticipatory pleasure for future events through mental imagery could alleviate anhedonic symptoms of depression, with increases in positive affect and behavioral motivation. In the final section, the implications and limitations of this study as well as suggestions for future research are discussed.