• 대한지역사회영양학회지
• /
• 제10권6호
• /
• pp.963-970
• /
• 2005

Recently elevated plasma homocysteine concentration is considered an independent risk factor for atherosclerosis and thrombosis with coronary artery disease. Folate and vitamin $B_{12}$ are cofactors and closely related with metabolism of homocysteine. The purpose of this study is to evaluate the correlation between homocysteine and folate and vitamin $B_{12}$ in patients with ischemic heart disease. Twenty-six patients, in whom coronary angiographic finding revealed more than $50\%$ of stenosis at least in one coronary vessel were enrolled as the patient group, and thirty subjects, in whom angiographic finding revealed in not significant stenosis, but complained of chest pain, were selected as the control group. Fasting venous blood was obtained and measured the concentration of plasma total homocysteine, folate and vitamin $B_{12}$ by high performance liquid chromatography and fluorescence detection method. We examined the correlation between homocysteine and folate and/or vitamin $B_{12}$ in the control group and the patient group, respectively. Compared with the control group, the patient group had relatively higher plasma total homocysteine concentration ($10.7\pm4.2\;vs\;9.6\pm3.5$ umol/L), but showed no significant difference. Folate and vitamin $B_{12}$ concentration are low in the patient group, but showed no significant difference between patient and control group. Plasma total homocysteine concentration showed negative correlation with folate and vitamin $B_{12}$ in both the control group and the patient group, and showed significantly negative correlation in patient group {r = -0.550 (p < 0.01) vs r = -0.609 (p < 0.01)}. We knew that the plasma total homocysteine concentration were relatively elevated in patient group compared with the control group. Because plasma total homocysteine concentrations are closely negative correlated with folate and vitamin $B_{12}$ in the patient group, folate and vitamin $B_{12}$ supplement can lower the mortality and morbidity of ischemic heart disease. (Korean J Community Nutrition 10(6) : $963\∼970$, 2005)

• Journal of Yeungnam Medical Science
• /
• 제30권1호
• /
• pp.31-35
• /
• 2013

Hematoma is quite a common complication of femoral arterial catheterization. However, to the best of our knowledge, there have been no previous studies regarding deep vein thrombosis (DVT) caused by compression of a vein due to a hematoma. We report a case of a hematoma developing after femoral arterial catheterization and causing extensive symptomatic DVT. A 59-year-old male was seen in our Emergency Department with right lower leg swelling 15 days after coronary stent implantation performed using right femoral artery access. Computed tomographic (CT) scanning revealed a large hematoma (45 mm in its longest diameter) compressing the common femoral vein and with DVT from the right external iliac vein to the popliteal vein. Due to the extensive DVT involvement, we decided to release the compressed common femoral vein by surgical evacuation of the large hematoma. However, even following evacuation of the hematoma, as the DVT did not resolve soon, further mechanical thrombectomy and catheter-directed thrombolysis were performed. Angiography then showed nearly resolved DVT, and the leg swelling was improved. The patient was discharged with the anticoagulation medication, warfarin.

• 대한기계학회:학술대회논문집
• /
• 대한기계학회 2003년도 춘계학술대회
• /
• pp.1915-1918
• /
• 2003

Atherosclerosis, which is a degenerate disease, is believed to occur in the vascular system due to deposition of cholesterol and low density lipoprotein(LDL) or thrombosis on the blood vessel. Atherosclerosis narrows arterial lumen, which is known as stenosis phenomenon of blood vessel. Pathogenesis of atherosclerosis is thought to occur mainly by aging. Restenosis phenomenon is observed in the same site of insertion of a stent and balloon angioplasty after treatment of interventional theraphy. Several hypothetical theories related to the generation of atherosclerosis have been reported: high shear stress theory, low shear stress theory, high shear stress gradient theory, flow separation and turbulence theory and high pressure theory. However, no one theory clearly explains the causes of atherosclerosis. In the present study the generation of atherosclerosis in the left coronary artery is investigated. The hypotheses are verified by using the computer simulation.

• 한국콘텐츠학회논문지
• /
• 제12권7호
• /
• pp.273-283
• /
• 2012

급성심근경색증 환자에서 약물 용출 스텐트(drug-eluting stents, DES)는 일반 금속 스텐트(bare-metal stents, BMS)에 비해 재협착은 감소하지만 구조적인 특성으로 스텐트 혈전증(stent thrombosis, ST)이 증가한다고 알려져 있다. 이에 본 연구에서는 ST의 발생빈도, 임상양상, 그리고 1년간 예후를 알아보고자 하였다. 대학병원 심혈관센터에서 급성심근경색증으로 관상동맥 중재술을 받은 2,667명에서 스텐트 혈전증이 발생한 환자 80명을 대상으로 DES-ST를 I군(n=57), BMS-ST(n=23)를 II군으로 분류하여 양군 간의 특징을 분석하였다. 양군간의 ST는 I군에서 57명(2.7%)과 II군에서 23명(4.3%)로 양군 간에 유의한 차이는 없었다(p>0.064). ST의 유형으로는 acute ST는 I군5(8.8%), II군3(2.3%), subacute ST는 I군 29(50.9%), II군14(60.9%), late ST 는 I군11(19.3%), II군2(8.7%), very late ST는 I군12(21.1%), II군 4(17.4%)로 양군간의 차이는 없었다(p>0.605). DES와 BMS를 삽입 후 1년 예후에 미치는 인자로는 ST(OR 8.166 95% CI 2.825-23.608 p<0.001), 좌심실구혈율(<40) (OR 6.409 95% CI 2.422-16.955 p<0.001), 나이(${\geq}$75세) (OR 4.979 95% CI 1.946-12.744 p=0.001) 이었다. ST의 발생율은 양군 사이에 차이가 없었고, 1년 예후에 미치는 인자로는 ST의 발생, 좌심실 구혈률의 저하 및 환자의 연령 등 이었다.

• Tuberculosis and Respiratory Diseases
• /
• 제63권4호
• /
• pp.362-367
• /
• 2007

폐경기 여성에서 호르몬 대체요법은 폐경기 증상의 경감, 골다공증에 의한 골절, 대장암의 위험도 감소 등의 효과가 인정되어 왔다. 현재도 많은 폐경기 여성에게 사용되어지고 있는 치료법이다. 그러나 그에 따른 부작용 또한 점차 밝혀지며 연구 되고 있다. 이러한 부작용 중 생명을 위협 할 수 있는 폐색전증은 호르몬요법을 사용할시 항상 각별한 주의를 요한다. 폐경기 호르몬대체요법이 필요할 경우 심부정맥혈전증과 폐색전증의 다른 위험인자나 환경적 요인 등을 가진 환자에게 그 사용에 있어 더욱 주위를 기울여야 한다. 또한 폐색전증의 가장 많은 증상인 호흡기 증상이 있을 경우 즉시 적절한 평가와 치료가 필요하다.

• Biomolecules & Therapeutics
• /
• 제19권4호
• /
• pp.472-476
• /
• 2011

Hypercholesterolemia indirectly increases the risk of arterial and venous thrombosis by enhancing the ability of platelets to aggregate. Yacon (Smallanthus sonchifolius) is composed of fructooligosaccharides, proteins, minerals and phenolic compounds, and has potential benefits for the management of diabetes. This study investigated whether the consumption of yacon in the diet inhibits platelet aggregation under hypercholesterolemic conditions. Male New Zealand white rabbits were fed one of five dietary interventions: a normal control diet, 0.5% cholesterol diet, 0.5% cholesterol diet+a low dose of yacon (0.5 g/kg body weight given orally each day), 0.5% cholesterol diet+a high dose of yacon (2.5 g/kg body weight given orally each day), or a 0.5% cholesterol diet+lovastatin (2 mg/kg body weight given orally each day). After 8 weeks, blood was collected to measure the amount of collagen- and thrombin-induced platelets present. Yacon inhibited the platelet aggregation induced by low doses of agonists (0.5 ${\mu}g/mL$ collagen and 0.02 units/ml thrombin) in a concentration-dependent manner. In addition, yacon concentration-dependently inhibited collagen-induced arachidonic acid liberation. Moreover, n-hexane, chloroform and ethyl acetate fractions showed a marked and selective inhibition of the platelet aggregation induced by collagen, again in a dose-dependent manner. These fractions, especially that of chloroform, significantly suppressed platelet aggregation. The results of this study demonstrate that when yacon is added to a cholesterol-enriched diet, cholesterol-induced platelet aggregation returns to control levels. This may also be beneficial in preventing atherosclerosis and reducing risk factors for coronary artery disease and stroke.

• 한국임상약학회지
• /
• 제24권2호
• /
• pp.106-114
• /
• 2014

Purpose: Recent investigations suggest that the antiplatelet effect of clopidogrel may be decreased when this medication is taken together with certain proton pump inhibitors (PPIs). However, there has been no study conducted in Korea regarding the clinical effect of clopidogrel-PPI interaction. This study targeted patients who received stents to investigate the effect of the concomitant use of clopidogrel and PPIs on the occurrence of adverse cardiovascular events in Korean patients. Methods: The patients who received a stent insertion at the Yeouido St. Mary's Hospital between January 2010 and April 2011 were included. The patients were divided into two groups, clopidogrel and clopidogrel + PPI, and followed for 12 months after the date of stent insertion using prescription history and medical records. The recurrence rates of the cardiovascular events among the two patient groups were statistically analyzed. Results: There was no difference between the two groups in the basic characteristics of the 157 patients in the clopidogrel group and the 62 patients in the clopidogrel+PPI group. Simple logistic regression showed a significantly higher rate of re-hospitalization in the clopidogrel+PPI group (OR=1.893, 95% CI 1.040-3.445, p=0.037). However, the results of the multivariate logistic regression of the variables found to have statistical significance by crosstabulation showed no significant difference in the rate of adverse cardiovascular events or re-hospitalization between the two groups. Conclusions: There was no significant difference between the clopidogrel and clopidogrel+PPI group among new patients with cardiovascular stents with respect to the occurrence of revascularization procedures, stent thrombosis, or chest pain, or with respect to the re-hospitalization rate for all cardiovascular events.

• Journal of Chest Surgery
• /
• 제36권7호
• /
• pp.518-522
• /
• 2003

심근경색 후 좌심실 혈전증은 빈번하며 색전의 위험성이 있지만, 허혈성 심근증 환자에서 Dor 술식 후 좌심실 혈전증의 발생이나 치료법은 잘 알려져 있지 않다. 저자들은 45세 남자에서 관상동맥우회술과 Dor 술식 및 좌심실 혈전 제거술 후 좌심실 혈전이 재발하여 정맥내 헤파린 주사 및 경구 쿠마딘을 투여하여 좌심실 혈전의 소실이 있었기에 보고하고자 한다. 본 증례를 통해 저자들은 심첨부 심실벽의 이상운동을 가진 좌심실류가 동반된 좌심실 기능부전 환자들에서 Dor 술식 후 항응고제의 투여가 좌심실 혈전 발생의 예방 및 치료에 도움이 될 수 있을 것으로 사료된다.

• Journal of Chest Surgery
• /
• 제38권10호
• /
• pp.710-713
• /
• 2005

급성복부대동맥 폐쇄는 드물지만, 응급을 요하며 높은 사망률과 이환율을 보이는 혈관질환이다. 늦은 진단은 예후에 심각한 영향을 미치게 된다. 승모판 협착, 심방세동, 관상동맥협착, 삼첨판 역류 및 심방중격결손으로 인한 개심슬을 받은 60세 여자가 술 후 13일에 하지의 감각이상, 마비, 심한 통증을 호소하였다. 배꼽 아래부터 발끝에 이르는 피부가 얼룩덜룩하였으며 하지의 맥박이 촉지되지 않았다. 저자들은 다중 검출 컴퓨터 단층 촬영을 이용하여 급성 복부 대동맥 폐쇄를 진단하고, 응급 혈색전 제거 및 대동맥-양측 대퇴동맥 우회로술로 성공적으로 치료하였다.

• 대한한의학방제학회지
• /
• 제21권1호
• /
• pp.1-15
• /
• 2013

Objectives : This article is a study on to which categories of modern diseases blood stasis patterns are assigned and the meaning of blood stasis interpreted with perspectives of Korean Medicine and modern medicine. Methods : We reviewed "Neijing", "Shanghanlun", "Yilingaicuo", "Xuezhenglun" and other books and modern clinical papers related with blood stasis. Results : 1. Blood stasis patterns are related with disorders of hemorrheology, hemodynamics, platelet function, microcirculation, microelements and endothelial damage. 2. From the types of syndrome differentiation, diverse diseases classified in type of qi deficiency with blood stasis and type of blood stasis due to qi stagnation are reported, which reflects qi and blood are closely connected. And many diseases are classified in type of kidney deficiency with blood stasis, which has something in common with chronic diseases can achieve effect from treatment considering blood stasis. 3. Diseases related with kidney involve menopausal disorder, mazoplasia, prostatitis, erectile dysfunction, chronic nephritis, renal calculus, osteoporosis and bursitis. Diseases related with heart involve coronary artery disease, arrhythmia and cerebral thrombosis. Diseases related with spleen involve gastritis, colonitis and digestive organ ulcer. Diseases related with liver involve hepatitis, hyperthyroidism and stroke. Diseases related with lung involve neurodermatitis, bronchitis and paranasal sinusitis. Conclusions : Blood stasis pattern which is one of the areas to draw medicine's attention has broad clinical application.