• Title/Summary/Keyword: Venous

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Evaluation of Anticoagulant Activity of Recombinant Hirudin (유전자 재조합에 의해 제조된 하루딘의 항응고 작용)

  • 김영식;엄은미;정정숙;정춘식;정기화;손정훈;최의성;이상기
    • Biomolecules & Therapeutics
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    • v.1 no.2
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    • pp.166-170
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    • 1993
  • Hirudin is a potent inhibitor of thrombin, which was originally obtained from the medicinal leech (Hirudo medicinalis) Now it is being produced through the recombinant technology on a large scale. Recombinant hirudin has been assayed for the anticoagulant activity by the measurement of clotting time and the inhibition of thrombin actvity using a chromogenic substrate. The assay range of partial thromboplastin time and thrombin time is within $0.2{\sim}1.0 {\mu}g/mι.$ Thrombin time is more sensitive to the measurement of clot. Ex vivo study showed the level of hirudin in rat plasma was highest in 10 min and then it was eliminated slowly. The half-life of r-hirudin was 80~110 min depending on the assay methods. Intraveneous injection of russel viper venom was used for thrombus induction combined with vents cava ligation. Inhibition of venous thrombosis was observed with i.v. hirudin. It was dependent on the concentration of hirudin.

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Respiratory Review of 2013: Pulmonary Thromboembolism

  • Hwang, Hun Gyu;Schulman, Sam
    • Tuberculosis and Respiratory Diseases
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    • v.75 no.3
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    • pp.89-94
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    • 2013
  • Pulmonary embolism (PE), which can originate as a consequence of deep vein thrombosis (DVT), is the most frequent and potentially fatal venous thromboembolic event. Despite the fact that the incidence of venous thromboembolism (VTE) in Asians is lower than that in the Western populations, a recent epidemiologic study demonstrates an increasing incidence of VTE in the Korean population. Anticoagulants, including low molecular weight heparin (LMWH) and vitamin K antagonist (VKAs), have been the main treatments for PE, however, recently new oral anticoagulants (NOACs) were introduced. We will review how well patients with PE can be managed with the existing anticoagulants and NOACs along with the time span of treatment, which still pose some challenges for clinicians.

Unroofed Coronary Sinus and its Surgery; Associated with Partial Atrioventricular Canal Defect and Common Atrium (관상정맥동 결손과 좌상대정맥의 좌심방환류에 대한 수술및 수술방법의 연구;부분형 방실관결손과 공통심방이 동반된 1례)

  • 이상호
    • Journal of Chest Surgery
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    • v.26 no.4
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    • pp.312-315
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    • 1993
  • The malformation consisted of persistent left SVC terminating in left atrium, absence of coronary sinus, and atrial septal defect is considered as a developmental complex anomaly. We observed such a case associated with partial atrioventricular canal defect and common atrium. We operated it by intraatrial roofing [tunneling] along its course of the posterior wall of the left atrium using bovine pericardial patch, which was designed to contain some of thebesian veins, thereby, left superior vena caval and some coronary venous blood would be drained into venous side. Associated lesions were also corrected.

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Modified Anatomic Repair of Corrected Transposition of the Great Arteries with Ventricular Septal Defect and Pulmonary Outflow Obstruction (심실중격결손과 폐동맥유출로 협착을 동반한 교정형 대혈관전위증의 해부학적 교정수술)

  • 박계현
    • Journal of Chest Surgery
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    • v.24 no.11
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    • pp.1149-1153
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    • 1991
  • A modified procedure for the operative management of the corrected transposition of the great arteries with ventricular septal defect and pulmonary stenosis or atresia was performed in 4 patients. (age ; 18 months-9 years). The operation consists of a venous switch procedure (Senning), intraventricular baffling directing the blood flow from the morphologic left ventricle into the aorta via ventricular septal defect through the right ventriculotomy, and insertion of valved conduit between the morphologic right ventricle and the pulmonary artery. All the four patients had large non-restrictive ventriular septal defects and no evidence of significant mitral valve regurgitation. Both ventricles were well-developed. Three cases had pulmonary atresia, and the remainder had severe subpulmonic stenosis. Postperatively, all patients showed no findings of systemic or pulmonary venous obstruction withnormal sinus rhythm. One patient died of sepsis due to infection by Methicillin-resistant S. aureus on the thirteenth postoperative day. Follow-up is done on the survivors, and all of them are dong well with regular sinus rhythm, with their functional class I or II at 2 to 8 months after the operation.

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