• Childhood Kidney Diseases
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• 제3권1호
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• pp.104-108
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• 1999

Atypical hemolytic uremic syndrome associated with neuraminidase-producing Streptococcus pneumoniae usually associated with invasive infection such as fulminant pneumonia, sepsis, and meningitis and may occur earlier in lift and has a higher mortality rate than typical hemolytic uremic syndrome. We have experienced a 22-month-old female patient with hemolytic uremic syndrome associated with S. pneumoniae pneumonia and empyema. The patient was treated with ceftriaxone and washed red blood cell transfusion. As the disese course could be aggravated by the use of blood products containing anti-Tomsen-Friedenreich antigen, early recognition and sensible use of blood products such as washed RBC might lead to the improved outcome.

• The Korean Journal of Physiology
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• 제26권1호
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• pp.37-44
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• 1992

The encapsulation of the Purified bovine hemoglobin with Phospholipids obtained from egg folk was performed using a rotary vacuum evaporator. The prepared Hb-containing liposome (hemosome) had good properties as artificial red blood cell. The shape and size of the hemosomes were measured by a phase contrast microscope and image analyzer. The function of the hemosome as oxygen carrier was tested by measuring oxygen saturation curve with blood gas analyzer and infusing it into rats. The prepared hemosome was 1.184 + 0.423 ${\mu}m$ in diameter and round in shape. $P_{50}$ value of the hemosome solution was 28 mmHg. The synthesized red cells seem to function as oxygen carrier, because the severely bled rats were prolonged in their life by transfusion of the hemosome solution containing bovine hemoglobin.

• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2023년도 제67차 동계학술대회논문집 31권1호
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• pp.159-160
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• 2023

본 논문에서는 헌혈의 중요성과 지속적인 헌혈량 감소의 개선방안을 목적으로 하며, 헌혈량이 지속해 감소하는 이유에 대하여 분석하였다. 헌혈량은 코로나와 고령화 사회로 인한 헌혈의 주 연령층인 10대와 20대의 감소로 인해 헌혈량이 감소하는 상황이다. 이러한 문제를 확인하고 개선하기 위해 어떤 방법이 있는지 확인해 보았으며 분석 결과 고 연령층의 헌혈량은 증가하였지만, 헌혈의 주 연령층인 10대와 20대의 헌혈량을 대체하지 못하기 때문에 헌혈량은 연도가 지날 때마다 감소하는 추세를 확인할 수 있었다. 거기에 2019년 말부터 시작된 코로나로 인해 조금씩 감소하던 헌혈량을 더 큰 폭으로 감소하게 했다. 앞으로도 고령화 사회가 이어진다면 고연령층의 증가로 수혈은 필요하지만, 헌혈량이 따라가지 못하는 상황이 일어날 것으로 예측된다.

• 센서학회지
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• 제15권4호
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• pp.291-296
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• 2006

We focus on the solutions to prevent fatal risk to patient's life caused by transfusing blood which is wrong type or has exceeded norm temperature. Also, this study gives priority to the verification of medical safety of using blood, of which management is applied advanced sensor tag technology adopted RFID(Radio Frequency Identification) temperature sensor and USN(Ubiquitous Sensor Network) for temperature management of blood. Therefore, this study can contribute to protect of health of patients who take blood transfusion through construction of basis of new process of blood management.

• 한국의료질향상학회지
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• 제4권1호
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• pp.82-103
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• 1997

Background : With increased concerns about variation among physician's practice pattern and their impact on the quality of care, clinical practice guidelines have been developed by many different organizations, with differing aims and incentives. From the same point of view, there is growing interest in the development of clinical practice guidelines in Korea, but with only a few examples. As a result, there is not much exploration on the incentive and barrier to develop guidelines as well as description on the development process. The purposes of this study are to describe the process of the four different clinical practice guidelines in a hospital setting, and to identify incentives and barriers in the development of guidelines. Methods : For this research, a clinical practice guideline development committee and four clinical practice guideline development teams were organized in a university hospital which has more than 1,200 bead. Twenty eight doctors, three nurses, and one technician participated as members of development teams for eight months. Four to six meetings were held, and three to seven departments in the hospital were involved. Results : The topics which developed into clinical practice guidelines were cardiopulmonary resuscitation(CPR), blood transfusion, anticoagulation, and angiography. The main goals set by teams were education(CPR, angiography), risk management(blood transfusion), and to enhance quality of care(anticoagulation). Among four teams, only in the team for anticoagulation guideline medical record review and pilot-testing were performed. Also literature review was not carried out systematically. However, all the guidelines were developed by multidisciplinary be used as standard protocols in the practice. Conclusion : Experience and skill in developing process has to be improved to have a more valid and useful practice guideline. In particular, literature review and problem identification by examining medical record should be emphasized. Also further studies on the clinical outcomes of the guidelines application and changes in physicians' behaviors would be required.

• 한국임상수의학회:학술대회논문집
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• 한국임상수의학회 2007년도 추계국제학술대회 및 컨퍼런스
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• pp.602-602
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• 2007

• Parasites, Hosts and Diseases
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• 제60권3호
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• pp.201-205
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• 2022

Babesia microti is one of the most common causative agents of babesiosis. A sensitive and rapid detection is necessary for screening potentially infected individuals. In this study, B. microti cytochrome c oxidase subunit I (cox1) was selected as the target gene, multiple primers were designed, and optimized by a recombinase-aided amplification (RAA) assay. The optimal primers and probe were labeled with fluorescein. The sensitivity of fluorescent RAA (fRAA) was evaluated using gradient diluents of the cox1 recombinant plasmid and genomic DNA extracted from whole blood of B. microti infected mice. The specificity of fRAA was assessed by other transfusion transmitted parasites. The analytical sensitivity of the fRAA assay was 10 copies of recombinant plasmid per reaction and 10 fg/µl B. microti genomic DNA. No cross-reaction with any other blood-transmitted parasites was observed. Our results demonstrated that the fRAA assay would be rapid, sensitive, and specific for the detection of B. microti.

• 대한의용생체공학회:의공학회지
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• 제39권6호
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• pp.250-255
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• 2018

Accurate blood typing is the crucial factor for safe and successful blood transfusion and plays a very important role in organ transplantation and genetic information of forensic medicine. Microfluidic devices have been developed to overcome the limitations of the conventional blood typing methods. In this study, we demonstrate a Lamb wave-based device for simple blood typing in a sample droplet and we propose new indices for quantitative and accurate blood typing. Using Lamb wave-induced acoustic streaming in the droplet, the blood sample and the reagent can be mixed rapidly and red blood cells start to form clumps, which is agglutination. Based on the recorded image and video, the intensity of transmitted light through the sample droplet is evaluated to determine the blood type. Effect of the concentration of suspended red blood cells was evaluated and we found that 10% concentration of suspended red blood cells was suitable to observe the difference between aggregated and non-aggregated samples. Finally, sample with blood type A could be determined using anti-A reagent in our Lamb wave-based device. Our device enables simple and accurate blood typing, which can be applied to resource-limited environments.

• Journal of Chest Surgery
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• 제37권8호
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• pp.660-664
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• 2004

배경: 냉혈심정지액은 저온에서 적혈구응집현상을 방지하고 미세순환을 좋게 하기 위해 심정지액을 4 : 1로 희석하여 사용하도록 권장되었는데 간헐적전방온혈심정액(IAWBC)에서는 심정지액을 냉각하지 않기 때문에 희석할 필요가 없이 고농도 포타슘을 바로 사용할 수 있게 되었다. 본 연구는 IAWBC에서 희석되지 않은 고농도 포타슘 사용의 안전성과 유용성을 알아보고자 한다. 대상 및 방법: 관상동맥우회로 조성수술을 받은 환자 중 IAWBC를 이용한 환자 30명을 대상으로 하였다. 1 : 4로 희석된 온혈심정지액을 사용한 군을 dilutedplegia군으로 하고 희석되지 않은 포타슘을 사용한 군을 microplegia군으로 하였다. dilutedplegia군의 심정지액은 1 : 4 delivery kit를 이용하여 상행대동맥뿌리에 주입되었고 microplegia군에서는 희석되지 않은 포타슘을 infusion pump를 이용하여 산소포화 된 혈액에 직접 연결하여 대동맥뿌리에 주입하였다. 걸과: microplegia군이 16명, 대조군인 dilutedplegia군이 14명으로 나이, 성별, 좌심실 구획률, 이식혈관 수, 대동맥차단시간, 수술 후 심근효소치에서는 두 군에서 차이가 없었다(p＞0.05). 모든 환자에서 수술 후 심근경색과 수술사망은 없었다. dilutedplegia군에서 사용된 crystalloid심정지액의 양은 1346$\pm$597 mL (평균$\pm$표준편차)이었고 microplegia군에서는 28$\pm$9mL이었다. 체외순환 중 적혈구 구획률은 microplegia군에서 24$\pm$3%로 dilutedplegia군의 21$\pm$4%에 비해 약간 높았으나 통계학적 의의는 없었다. 체외순환 중에 수혈을 받은 환자는 microplegia군에서 4명인데 비해 dilutedplegia군에서는 11명으로 높았다(p＜0.05). 수술 중 환자의 소변량과 혈액여과한 양에서 microplegia군이 959$\pm$410 mL와 1481$\pm$784 mL로 dilutedplegia군의 1250$\pm$810mL와 1689$\pm$548 mL에 비해 통계학적으로 의의 있게 적었다(p<0.05). 결론: 관상동맥우회로 조성수술에서 전방온혈심정지액을 사용할 때 희석되지 많은 고농도 포타슘은 fliud overload와 수혈을 피하고 delivery kit를 사용하지 않음으로써 효과적이고 만족할 만한 심근보호 효과를 보였다.

• 대한임상검사과학회지
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• 제52권2호
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• pp.98-104
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• 2020

Thalassemias are considered important health issues throughout Iraq, involving its Kurdistan region. This disorder, particularly its major form, needs lifelong regular transfusions. But this form of medical care is associated with various complications including red cell alloimmunization and autoimmunization. This study determined the frequency and associations of alloimmunization among multi-transfused patients with β-thalassemia major. The subjects were 204 patients who were registered at a thalassemia care center in Sulaymaniyah-Iraqi Kurdistan. The patients' records were analyzed, their red cells were phenotyped for ABO/RhD antigens using the gel card method, and irregular antibody screening/identification was performed using the standard tube method. Alloantibodies were detected in 5.8% of the patients, while DAT was positive in 4% of the patients, which indicated autoantibodies. The identified alloantibodies were anti-E (2.4%), anti-C (1.4%), anti-e (1%), and anti-K (1%). A patient's age at the start of transfusion (>2 years) (P=0.042) and a positive history of transfusion reactions (P=0.003) were correlated with a significantly higher rate of alloantibody formation. From the results of our study, we conclude that measures to decrease the development of alloantibodies may incorporate matching for Rhesus and Kell systems and early induction of blood transfusions.