• Journal of Chest Surgery
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• 제49권sup1호
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• pp.20-27
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• 2016

Background: This study analyzed the association between the volume of heart surgeries and treatment outcomes for hospitals in the last five years. Methods: Hospitals that perform heart surgeries were chosen throughout Korea as subjects using from the Health Insurance Review and Assessment Service. The treatment outcome of the heart surgeries was defined as the mortality within 30 postoperative days, while the annual volume of the surgeries was categorized. Logistic regression was used as the statistical analysis method, and the impacts of the variables on the heart surgery treatment outcomes were then analyzed. Results: The chance of death of patients who received surgery in a hospital that performed 50 or more surgeries annually was noticeably lower than patients receiving operations from hospitals that performed fewer than 50 surgeries annually, indicating that the chance of death decreases as the annual volume of heart surgeries in the hospital increases. In particular, the mortality rate in hospitals that performed more than 200 surgeries annually was less than half of that in hospitals that performed 49 or fewer surgeries annually. Conclusion: These results indicate that accumulation of a certain level of heart surgery experience is critical in improving or maintaining the quality of heart surgeries. In order to improve the treatment outcomes of small hospitals, a support policy must be implemented that allows for cooperation with experienced professionals.

• Tuberculosis and Respiratory Diseases
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• 제48권1호
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• pp.67-71
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• 2000

문맥고혈압에 동반된 폐고혈압은 비교적 드문 질환으로 1951년 Mantz와 Craig가 처음 보고한 후 꾸준히 보고되고 있으나 국내엔 아직 보고된 바가 없다. 최근 간경변증으로 인한 복수와 호흡곤란을 주소로 내원한 49세 여자 환자에서 폐고혈압이 동반되어 있었던 증례를 경험하였기에 문헌 고찰과 함께 보고하는 바이다.

• 중환자간호학회지
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• 제13권1호
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• pp.27-43
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• 2020

Purpose : This integrative review aimed to synthesize studies on intensive care unit (ICU) nurses' attitude, perceptions, and experiences toward end-of-life care decision-making. Methods : Using Whittermore and Knafl (2005)'s methods, we identified and synthesized research articles published in domestic journals between the years 2003 and 2019 and evaluated the quality of selected articles using the Mixed Methods Appraisal Tool. Results : In the 13 studies reviewed, 12 were published prior to enactment of the "The Act for Hospice and Palliative Care and Decision-Making about Life-Sustaining Treatment (2018)." All nine quantitative studies identified were based on cross-sectional descriptive survey. In four qualitative studies, content analysis (n=2) and phenomenology (n=2) were used. Overall, ICU nurses were well-aware of the necessity of communicating and limiting life-sustaining treatments. Many ICU nurses had positive attitude towards limiting life-sustaining treatments to promote patients' comfort and dignity. Although nurses were willing to take active roles, they also reported having experienced high stress in the process of decision-making and implementation. Conclusions : It is important to prepare ICU nurses with proper knowledge and attitude regarding the topic area. It is also equally important to develop systems to support nurses' emotional stress and moral distress during communication, decision-making, and implementation.

• 한국사회복지학
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• 제61권1호
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• pp.33-55
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• 2009

본 연구는 1980년 이후 사회복지조직의 효과성 연구를 다룬 논문 20편의 연구경향을 파악함으로써 사회복지조직의 조직현상에 대한 이해 도모, 조직관리에의 실천적 함의 제공 및 향후 사회복지조직의 조직효과성 연구에 대한 제언을 하고자 하였다. 분석결과, 대부분의 연구가 사회복지관과 생활시설을 대상으로 이루어졌으며, 조직효과성의 이론적 기반으로 내부과정접근모델이 가장 많이 적용되고 있어, 향후 사회복지조직의 성장과 외부의 요구에 부응하기 위해서는 다양한 조직과 지표 및 연구방법론의 활용이 필요한 것으로 파악되었다. 조직관리 측면에서 조직효과성에 긍정적인 영향을 주는 집단적 개발적 조직문화, 분권적 조직구조, 변혁적 리더십, 외부와의 개방적 관계 활용을 제안하였다.

• 중환자간호학회지
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• 제14권3호
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• pp.141-156
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• 2021

Purpose : This study aimed to systematically review the preventive interventions for delirium in Korean intensive care unit (ICU) patients and evaluate their efficacy. Methods : For this systematic review and meta-analysis, we searched the literature and selected studies from data sources that included the RISS, KISS, National Central Library, National Assembly Library, DBpia, Science on, MEDLINE, and Cochrane Library. We used Cochrane's revised tool for risk of bias in randomized trials and non-randomized studies of intervention tools to assess the quality of the selected studies. The effect size of the intervention was calculated as odds ratio (OR) and standardized mean difference (SMD). Results : Preventive interventions reported in 23 studies with a total of 4,799 ICU patients were effective in reducing the occurrence of delirium (OR=0.64, 95% CI : 0.49~0.91, p=.011), but not the duration (SMD=-0.22, 95% CI : -0.51~0.08, p=.148). As a result of a subgroup analysis, non-pharmacological interventions were effective in reducing the occurrence of delirium (OR=0.66, 95% CI : 0.47~0.94, p=.020), while pharmacological interventions had no effect (OR=0.68, 95% CI : 0.33~1.40, p=.295). Among the non-pharmacological interventions, multi-component intervention had the largest effect size (OR=0.38, 95% CI : 0.26~0.55, p<.001). Conclusion : Non-pharmacological interventions were effective in reducing the occurrence of delirium. We recommend the development and application of multi-component interventions to prevent delirium in the Korean ICU patients.

• 중환자간호학회지
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• 제16권3호
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• pp.34-47
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• 2023

Purpose : Exercise may prevent the worsening of chronic kidney disease (CKD) and progression of cardiovascular diseases in patients with CKD. This review aims to identify the best type of exercise modality and summarizes the beneficial effects of exercise on physical and renal function among older adults with pre-dialysis CKD. Methods : A systematic search of PubMed, Embase, CINAHL, Cochrane Library, Web of Science, SCOPUS, and domestic database was performed for randomized controlled trials (RCTs) assessing the effect of exercise intervention on older adults with pre-dialysis CKD published until February 2023. A random-effects meta-analysis was conducted. The risk of bias was assessed using a Cochrane tool for assessing the risk of bias in RCTs (RoB 2.0). Results : The systematic review included 11 RCTs (n = 591, average age 60.2-76), of which 8 could be included for meta-analysis. Exercise was significant in increasing peak oxygen consumption and knee muscle strength among physical functions, and also in improving glomerular filtration rate among kidney functions. Conclusion : Exercise has beneficial effects on physical and renal function among older adults with pre-dialysis CKD. In the future, it is necessary to verify the effectiveness of exercise by subdividing it by type, intensity, duration, and delivery.

• 한국응용과학기술학회지
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• 제40권6호
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• pp.1340-1349
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• 2023

Despite its profound impact on athletic performance, the significance of heart rate recovery (HRR) has been insufficiently addressed in the filed of sports science, particularly in the context of weightlifting characterized by brief and intense exertions involving heavy weights. Serving as a valuable indicator of autonomic nervous system and cardiovascular function, HRR assumes a pivotal role in weightlifting. This comprehensive review aims to delineate the specific demands for HRR in weightlifting, shedding light on the often overlooked cardiovascular considerations within training regimes focused on strength and power. The investigation scrutinizes the repercussions of HRR on weightlifting performance, seeking to elucidate how inadequate recovery intervals may result in physiological and psychological consequences. These consequences encompass a distorted perception of effort, disruption of coordination, compromised posture due to irregular breathing, and an overall decline in lifting capacity. The review systematically presents compelling evidence pertaining to heart rate response and recovery patterns during weightlifting, underscoring the critical importance of well-structured rest periods. Furthermore, the review delves into a comprehensive discussion of factors influencing HRR in weightlifting, encompassing variables such as sex, age, cardiovascular function, hydration, nutrition, and psychological aspects. Finally, a key emphasis is placed on the integration of effective HRR techniques into the training regimens of weightlifters, thereby ensuring sustained and optimized performance outcomes.

• 멤브레인
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• 제34권1호
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• pp.1-9
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• 2024

최근 전기차 시장의 확장으로 배터리 산업이 급격히 성장함에 따라 폐배터리 리사이클링 기술 개발의 필요성이 증가하고 있다. 폐배터리 리사이클링 기술은 배터리 산업에 핵심적인 리튬, 코발트, 니켈 등 희소금속의 공급을 안정화하고 환경 및 인간의 건강에 미치는 영향을 경감할 수 있다. 본 총설에서는 금속 회수 기술의 배경이 되는 이론적 원리와 현재 상용되고 있는 금속 회수 공정을 소개하고자 한다. 또한, 기존 공정의 문제점을 개선하려는 연구 및 기술 개발 동향을 서술하여 리사이클링 기술이 나아가야 할 방향을 소개하고자 한다.

• 한국과학교육학회지
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• 제36권6호
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• pp.969-978
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• 2016

이 연구의 목적은 초등과학영재가 동료평가 후에 개방적 탐구를 수행할 때 어떠한 양상으로 개선이 이루어지는가를 알아보는 것이다. 서울시 강서교육지원청 영재원 과학분야 소속 학생들은 총 3회에 걸쳐 개방적 탐구와 동료평가를 실시하고 탐구 보고서를 제출하였다. 학생들의 개방적 탐구는 초등학생의 개방적 탐구 활동 평가 준거에 의해 평가되었다. 이후 동료평가 활동 모습과 비교하여 세 번에 걸친 개방적 탐구가 개선되는 양상을 분석하였다. 연구 결과에 의하면 첫째, 동료평가 활동 시 피드백이 빈번하거나 하나의 피드백에 대하여 오랜 시간 여러 의견이 오고갔던 평가 준거의 경우 평가 점수가 향상하였지만 피드백이 활발히 오고가지 않았던 평가 영역의 점수는 대부분 비슷하거나 소폭 향상하였다. 둘째, 초등과학영재가 동료평가를 통해 개방적 탐구 수행을 개선하는 유형을 세 가지로 분류할 수 있었다. 첫 번째 유형은 자신의 모둠이 받은 피드백을 수용하고 적용하는 유형이었고, 두 번째 유형은 다른 모둠이 받은 피드백을 바탕으로 본인의 탐구를 반성하여 개선이 이루어지는 유형이었으며, 마지막 유형은 별다른 피드백 없이도 다른 모둠의 개방적 탐구 발표를 듣는 것만으로도 스스로 반성이 이루어지는 유형이었다. 셋째, 초등과학영재가 동료평가를 할 때 피드백을 제공하는 방식에는 5가지 유형이 있었다. 즉, 탐구 내용을 이해하기 위한 피드백, 깊이 생각하지 않고도 동료의 탐구에서 부족한 점을 지적하는 피드백, 탐구의 유용성을 평가하는 피드백, 탐구의 과학적 논리적 타당성을 평가하는 피드백, 구체적인 개선방안을 제시하는 피드백 등이었다. 이 중 두 번째, 세 번째, 네 번째 피드백 유형이 빈도가 가장 높게 나타나 동료평가가 학생들의 비판적 사고력을 기르기 위한 수단이 될 수 있음을 시사한다. 반면 확산적 사고를 촉진하는 다섯번째 피드백 유형은 드물게 나타나 교사의 지도가 필요하다.

• Tuberculosis and Respiratory Diseases
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• 제48권6호
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• pp.973-979
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• 2000

제 I 형 당원병에서 폐고혈압은 드문 합병증으로 외국 문헌에서 6예만이 보고되었으나 국내에는 아직 보고된 바가 없다. 저자들은 최근 제 Ia형 당원병으로 진단 받았던 31세 남자 환자에서 폐고혈압이 동반되었던 예를 경험하였기에 문헌 고찰과 함께 보고하는 바이다.