• Journal of Biomedical Engineering Research
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• v.26 no.5
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• pp.337-341
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• 2005

Blood pulsation has been reported to have an advantageous effect on extracorporeal blood circulation. However, the study of pulsatile blood flow in renal replacement therapy is very limited. The in-vitro experimental results of pulsatile blood flow on ultrafiltration, when compared with the conventional roller pump, are described in this paper. Methods: Blood flow rate (QB) and transmembrane pressure (TMP) were considered as regulating factors that have an influence on ultrafiltration. Experiments were performed under the condition of equal TMP and OB in both pulsatile and roller pump groups, Several kinds of hollow fiber dialyzers were tested using distilled water containing chemicals as a blood substitute. Mean TMP (mTMP) varied from 10 to 90mmHg while the QB was 200ml/min. Results: Ultrafiltration rate (QUF) was found to be linearly proportional to TMP, whereas QB had little influence on QUF. In addition, QUF was higher in the pulsatile group than the roller pump group at the identical TMP. Conclusion: In the controlled test, QUF increased solely as a consequence of blood pulsation, which implies that the pulse frequency represents an additional and important clinical variable during renal replacement therapy.

• Proceedings of the Korean Society of Veterinary Clinics Conference
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• 2007.05a
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• pp.109-109
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• 2007

• Proceedings of the Korean Society of Veterinary Clinics Conference
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• 2007.05a
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• pp.110-110
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• 2007

• Infection and chemotherapy
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• v.50 no.4
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• pp.346-349
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• 2018

In 2015, rapid human immunodeficiency virus (HIV) testing was implemented in all 25 public health centers in Seoul. During March and December 2015, 20,987 rapid HIV tests were performed, of which 116 (0.5%) were positive. Compared to those of the period before application of the rapid HIV test in place of conventional enzyme immunoassay method, the number of HIV tests performed and the number of positive results increased by sevenfold and twofold, respectively. In conclusion, expansion of the provision of rapid HIV tests in public health centers increased the number of voluntary HIV tests.

• Dementia and Neurocognitive Disorders
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• v.22 no.2
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• pp.85-85
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• 2023

• 대한생식의학회:학술대회논문집
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• 2004.11a
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• pp.95-95
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• 2004

• Journal of Korean Neurosurgical Society
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• v.48 no.1
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• pp.31-36
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• 2010

l death via apoptosis in human gliomas.

• Tuberculosis and Respiratory Diseases
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• v.78 no.2
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• pp.106-111
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• 2015

Tracheal hemangioma is a rare benign vascular tumor in adults. We reported a case of massive hemoptysis caused by a cavernous hemangioma in a 75-year-old man. This is the first report, to our knowledge, of a tracheal cavernous hemangioma that presented with massive hemoptysis. The lesion was removed with a $CO_2$ laser under rigid laryngoscopy. Endovascular tumors, such as tracheobronchial hemangiomas, should be considered a diagnostic option in cases of massive hemoptysis without a significant underlying lung lesion.

• Proceedings of the Korean Society of Plant Pathology Conference
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• 2000.10a
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• pp.26.2-26
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• 2000

• Proceedings of the Korean Vacuum Society Conference
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• 2003.02a
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• pp.84-84
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• 2003