• Title/Summary/Keyword: arteries

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Effect of Polygoni Multiflori Radix on the Atherosclerotic Coronary Artery of Rabbits Induced by High Cholesterol Diet (적하수오(赤何首烏)가 고(高)Cholesterol식이(食餌)에 의하여 유발(誘發)된 가토(家兎) 관상동맥(冠狀動脈)의 죽상경화(粥狀硬化)에 미치는 영향(影響))

  • Lee, Won-Chul
    • The Journal of Korean Medicine
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    • v.16 no.1 s.29
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    • pp.425-436
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    • 1995
  • In order to evaluate the effect of Polygoni Multiflori Radix on the atherosclerosis induced by high cholesteol diet, rabbits were fed with 4% cholesterol diet, 4% cholesterol-4% Polygoni Multiflori Radix diet during 12 weeks. After 12 weeks, histological changes in coronary artery of rabbits were studied. The results were obtained as follows; 1. At the area % of lumen in coronary arteries, Polygoni Multiflori Radix group showed significant inhibitory effect against decrease of area % in control group. 2. At the atheroma formation in coronary arteries, Polygoni Multiflori Radix group showed decrease effect as compared with control group. 3. At the mucoprotein formation in wall of coronary arteries, Polygoni Multiflori Radix group showed decrease effect as compared with control group. 4. At the lesion of elastic fibers in coronary arteries, Polygoni Multiflori Radix group didn't show effective changes as compared with control group.

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Anatomic Variation of the Common Palmar Digital Nerves and Arteries

  • Tian, Dong;Fu, Maoyong
    • Journal of Korean Neurosurgical Society
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    • v.57 no.3
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    • pp.219-220
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    • 2015
  • Variations in the course and distribution of common palmar digital nerves and arteries are rare. A classic common palmar digital nerves and arteries are defined as concomitant. During routine dissection classes to undergraduate medical students we observed formation of each common palmar digital nerve divided into 2 or 3 branches and formed a ring enclosing the corresponding common palmar digital artery. Knowledge of the anatomical variations of the common palmar digital nerves and arteries is crucial for safe and successful hand surgery.

Rastelli Operation In Congenitally Corrected Transposition Of Great Arteries (I.D.D.) -A Case Report- (Rastelli 씨 수술을 이용한 선천성 교정형 대동맥 전치증 (I.D.D.) ; 1예 보고)

  • 조범구
    • Journal of Chest Surgery
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    • v.12 no.3
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    • pp.215-224
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    • 1979
  • Corrected transposition of great arteries associated with dextrocardia [I.D.D.] is a very rare congenital cardiac malformation in which the atria and ventricles are in discordant relation, as are the ventricles and great arteries, but the aorta is to the right of the pulmonary artery. A 13 year old male patient who complained cyanosis and dyspnea on exertion for 8 years, was diagnosed as congenitally corrected transposition of great arteries associated with dextrocardia [I.D.D.], large ventricular septal defect, patent foramen ovale and pulmonary stenosis. He was operated on Nov. 22 1978. The ventricular septal defect was closed with Teflon felt and the pulmonary hypoplasia was corrected with Rastelli operation successfully. On 34th postoperative days, complete heart block was occurred and permanent epicardial pacemaker was implanted with good result.

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Distribution of Renal Artery in the Kidney of Korean Native Cattle (한우신동맥(韓牛腎動脈) 분포(分布)에 관하여)

  • Kim, Chong-Sup
    • Korean Journal of Veterinary Research
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    • v.23 no.2
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    • pp.129-135
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    • 1983
  • The distribution of renal artery of fifty Korean native cattles (100 kidneys) was observed. Vinylite solution was injected into renal artery of ninety specimens for cast preparation. The angiography was prepared in 10 specimens by injecting thirty percent of barium sulfate solution into renal arteries, and then radiographed on a soft X-ray apparatus (Shimadzu Waltes 60). 1. A. renalis arose from the each side of abdominal aorta in the Korean native cattles. 2. The renal arteries were bifurcated into Ramus cranialis and caudalis (91%), and Ramus cranialis, medius and caudalis(9%) which were ramified 1-4 segmental arteries, respectively. 3. The segmental arteries were originated from R. cranialis and R. caudalis (87%), R. medius (9%) and A. renalis (4%). 4. The kidney were divided separately into 5-7 arterial segments by running of the segmental artery into the parenchyma. Among them six segments were mostly frequent(53%). 5. The Arcus arteriosus renalis was observed at 44% of the left kidney and 14% of the right kidney.

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Infraoptic Course of Both Anterior Cerebral Arteries

  • Ji, Cheol;Ahn, Jae-Geun
    • Journal of Korean Neurosurgical Society
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    • v.47 no.1
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    • pp.71-73
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    • 2010
  • A 28-year-old woman was referred to our hospital with a sudden, very severe headache. Brain computed tomographic angiography showed a saccular cerebral aneurysm at the bifurcation of the left middle cerebral artery and infraoptic courses of both anterior cerebral arteries. The anterior cerebral arteries were seen to arise from the ipsilateral internal cerebral arteries at the level of the origin of the ophthalmic artery, passed underneath the ipsilateral optic nerve, and turned upward at ventral portion of the optic chiasm. Infraoptic course of the proximal anterior cerebral artery is an extremely rare anomaly and is often associated with cerebral aneurysms. We report the clinical features, radiological findings, and possible genesis of this anomaly with a literature review.

The effects of ultrasound and myofascial release therapy on blood velocity of cranial artery in tension-type headache subjects (초음파와 근막이완술이 긴장형 두통환자의 뇌혈류 속도에 미치는 영향)

  • Han Jong-Man;Kim Jin-Sang
    • The Journal of Korean Physical Therapy
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    • v.15 no.1
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    • pp.196-209
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    • 2003
  • The aim of study was compared with the possible role of cranial artery in headache pathogenesis each 2 group (group I : ultrasound therapy alone, group II : myofascial release therapy alone)- divided each 5 tension- type headache patients. Each group were applied ultrasound therapy for 5 minuets and myofascial release therapy for 15 minuets in occipital portion. The study carried out to determine the effects of ultrasound and myofascial release on the cranial arteries velocity from November 11, 2001 to March 29, 2002 the objects were 10 patients who having the tension-type headache at H-hospital. Transcranial doppler ultrasonograpy(TCD) is new non-invasive applicable method to evaluate flow velocities of intrans cranial and extracranial cerebral arteries. TCD was peformed with standard method to measure the Mean Flow Velocity(MFV) of the middle and posterior cerebral arteries, the vertebral arteries.

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A portal quadrad with triple hepatic arteries

  • Claire E Stoudemire;Caitlin N Sachsenmeier;Brittney L Link;Faith M Klein;Randy Kulesza
    • Anatomy and Cell Biology
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    • v.56 no.2
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    • pp.276-279
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    • 2023
  • The arterial support of the liver is most commonly from the celiac trunk via the proper hepatic artery (PHA). The PHA divides into left and right branches: the right hepatic artery (RHA) supplies the right and caudate lobes while the left hepatic artery (LHA) supplies the left and quadrate lobes. Aberrant hepatic arteries are relatively common, and the most frequent contributors are the superior mesenteric artery and left gastric artery. Herein we present findings from postmortem dissection of an abdominal cavity that revealed a rare combination of reported variations. Specifically, this subject had three extrahepatic arteries - a replaced LHA (rLHA), a PHA, and a replaced RHA (rRHA). The rLHA originated from the left gastric and the rRHA originated from the superior mesenteric artery. Knowledge of these variations is important for surgical and radiological procedures to avoid complications during treatment and improve patient outcomes.

Treatment of Internal Carotid Artery Dissections with Endovascular Stent Placement: Report of Two Cases

  • Deok Hee Lee;Seung Ho Hur;Hyeon Gak Kim;Seung Mun Jung;Dae Sik Ryu;Man Soo Park
    • Korean Journal of Radiology
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    • v.2 no.1
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    • pp.52-56
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    • 2001
  • Extracranial carotid artery dissection may manifest as arterial stenosis or occlusion, or as dissecting aneurysm formation. Anticoagulation and/or antiplatelet therapy is the first-line treatment, but because it is effective and less invasive than other procedures, endovascular treatment of carotid artery dissection has recently attracted interest. We encountered two consecutive cases of trauma-related extracranial internal carotid artery dissection, one in the suprabulbar portion and one in the subpetrosal portion. We managed the patient with suprabulbar dissection using a self-expandable metallic stent and managed the patient with subpetrosal dissection using a balloon-expandable metallic stent. In both patients the dissecting aneurysm disappeared, and at follow-up improved luminal patency was observed.

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Troponin-Positive Non-Obstructive Coronary Arteries and Myocardial Infarction with Non-Obstructive Coronary Arteries: Definition, Etiologies, and Role of CT and MR Imaging

  • Seung Min Yoo;Sowon Jang;Jeong A Kim;Eun Ju Chun
    • Korean Journal of Radiology
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    • v.21 no.12
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    • pp.1305-1316
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    • 2020
  • In approximately 10% of patients with acute myocardial infarction (MI), angiography does not reveal an obstructive coronary stenosis. This is known as myocardial infarction with non-obstructive coronary arteries (MINOCA), which has complex and multifactorial causes. However, this term can be confusing and open to dual interpretation, because MINOCA is also used to describe patients with acute myocardial injury caused by ischemia-related myocardial necrosis. Therefore, with regards to this specific context of MINOCA, the generic term for MINOCA should be replaced with troponin-positive with non-obstructive coronary arteries (TpNOCA). The causes of TpNOCA can be subcategorized into epicardial coronary (causes of MINOCA), myocardial, and extracardiac disorders. Cardiac magnetic resonance imaging can confirm MI and differentiate various myocardial causes, while cardiac computed tomography is useful to diagnose the extracardiac causes.

Effects of the Endothelium on the Contractile Responses to Norepinephrine in Isolated Proximal and Distal Coronary Artery of Pigs

  • Kim, Jong-Hoon;Jeon, Byeong-Hwa;Chang, Seok-Jong;Park, Hae-Kun
    • The Korean Journal of Physiology
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    • v.27 no.1
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    • pp.27-35
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    • 1993
  • Effects of the endothelium on the contractile responses to norepinephrine (NE) were investigated in isolated helical strips of the proximal and distal coronaries artery of pigs. The helical strips were immersed in Tris-buffered Tyrode's solution equilibrated with 100% $O_2$ at $35^{\circ}C$ and its isometric tension was measured. NE relaxed the strips precontracted with acetylcholine from both the proximal and distal coronary artery. NE-induced relaxation, which might be induced mainly by $\beta$-adrenoceptor function was dominant in the distal coronary arteries. NE-induced relaxation was converted to a contraction after $\beta$-adrenoceptor blockade with propranolol $(3{\times}10^{-6}M)$. ${\alpha}$-adrenoceptor-mediated contraction by NE was greater in the proximal coronary artery than the distal coronary artery. Quantitatively, ${\alpha}_1$-adrenoceptor mediated contraction by NE was greater than ${\alpha}_2$-adrenoceptor mediated contraction by NE in both arteries. NE-induced relaxation was decreased by rubbing of endothelium in both arteries. ${\alpha}_1-and\;{\alpha}_2$-adrenoceptor mediated contraction by NE were potentiated by rubbing of endothelium in both arteries. Pretreatment with methylene blue, an inhibitor of soluble guanylate cyclase, increased ${\alpha}_1-\;and\;{\alpha}_2$-adrenoceptor mediated contraction by NE in both arteries with endothelium. From the above results, we suggest that the effect of activation of $\alpha$-adrenoceptors by NE may be modulated by endothelium in the proximal and distal coronary arteries of pigs. This effect may be mediated via endothelium derived relaxing factor.

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