• 제목/요약/키워드: peripheral artery

검색결과 167건 처리시간 0.026초

Vasorelaxing Mechanism of Crude Saponin of Korea Red Ginseng in the Resistance-sized Mesenteric Artery of Rat

  • Kim, Shin-Hye;Park, Hyung-Seo;Lee, Mee-Young;Oh, Young-Sun;Kim, Se-Hoon
    • Journal of Ginseng Research
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    • 제26권1호
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    • pp.1-5
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    • 2002
  • 고려홍삼은 혈압강하효과가 있음이 잘 알려져 있다. 이에 백서장간막이 동맥의 저항혈관에서 고려홍삼 사포닌 성분의 혈관 이완기전을 규명하고자 내경이 150$\mu\textrm{m}$이하의 작은 혈관을 이요하여 여러 실험 조건에서 장력의 변화를 측정하여 다음과 같은 결과를 얻었다. 고려홍삼 사포닌 성분은 농도 의존적으로 (0.01mg/$m\ell$~1mg/$m\ell$) 혈관 평활근을 이완시켰으며 내피세포를 제거한 상태에서도 혈관의 이완효과는 지속되었다. A23187 이나 phorbol 12, 13-dibutyrate 에 의한 수축에서는 고려홍삼 사포닌에 의한 혈관의 이완효과가 나타나지 않았다. 고려홍삼 사포닌에 의한 혈관이완효과는 실험용액의 $K^{+}$ 농도를 증가시키면 감소되었으며 각종 $K^{+}$이 온통로 억제제인 tetaethylammonium, glybenclamide, 4-aminopyridine 및 BaCl$_2$를 전처치한 결과 BaCl$_2$에 의해서만 농도에 의존적으로 고려홍삼 사포닌에 의한 혈관이완작용이 억제되었다. 이상의 실험결과로부터 고려홍삼 사포닌은 장간막 동맥의 저항혈관에서 $K^{+}$의 유출을 증가시켜 혈관평활근을 이완시키며 $Ba^{2+}$에 의하여 차단되는 $K^{+}$ 이온통로가 고려홍삼 사포닌에 의한 혈관이완작용에 관여함을 알 수 있었다.

폐색성말초혈관질환의 합병증으로 발생한 허혈성단일신경병증과 허혈성근병증 (Ischemic Monomelic Neuropathy and Myopathy as a Complication of Peripheral Arterial Occlusive Disease)

  • 신경진;김성은;박진세;하삼열;박강민
    • Annals of Clinical Neurophysiology
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    • 제14권2호
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    • pp.72-75
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    • 2012
  • Ischemic monomelic neuropathy and myopathy are rare complications of peripheral arterial occlusive disease. We report a case of ischemic monomelic neuropathy of the right sural, common peroneal and posterior tibial nerves and ischemic myopathy of the right tibialis anterior resulting from the occlusion of the right common femoral arteries despite successful revascularization. Ischemic monomelic neuropathy and myopathy can occur as a result of occlusion of the specific peripheral artery.

동맥관으로 오인된 좌폐동맥 결찰에 대한 재수술 치험 (LPA Occulusion Due to the Erroneous Ligature of Patent Ductus Arteriosus; a report of 3 cases)

  • 송태승;윤태진;민경석;서동만
    • Journal of Chest Surgery
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    • 제33권5호
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    • pp.422-427
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    • 2000
  • Confusion of a patent ductus arteriosus (PDA) for the descending thoracic aorta is a fatal error occurring occasionally in infants or neonates. As a result, the left pulmonary artery (LPA) may be misconceived as the PDA, and ligated. This surgical mishap of other hospital leads to serious congestive heart failure and loss of left lung function due to the underdevelopment in the peripheral vascular and alveolar structures in neonates and premature infants. In this report, 3 cases of LPA ligation and subsequent treatment are presented.

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폐동맥 혈전색전증과 혈관염으로 오진된 주변부 폐동맥에서 발생한 폐동맥 내막육종: 증례 보고 (Pulmonary Artery Intimal Sarcoma Involving the Peripheral Pulmonary Artery, Initially Misdiagnosed as Pulmonary Artery Thromboembolism and Vasculitis: A Case Report)

  • 김민성;이진희;홍정희;황일선
    • 대한영상의학회지
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    • 제84권6호
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    • pp.1378-1383
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    • 2023
  • 폐동맥 육종은 매우 드문 고등급 악성종양으로, 주로 근위부의 탄력형 폐동맥에, 대개는 종양 충만(tumoral impaction)의 형태로 나타난다. 임상양상과 영상학적 소견이 유사하여 주로 폐 혈전색전증으로 오인되며 가끔 혈관염으로 오인되기도 한다. 우리는 비교적 드문 위치와 형태로 인해 폐 혈전색전증과 혈관염으로 오인했던 폐동맥 내막육종을 경험하였기에 문헌고찰과 더불어 증례를 보고하고자 한다.

머리 떨림 환자에 대한 한방 치험 1례 (A Case Report of a Tremor Patient with Stenosis of the Left Carotid Artery)

  • 박서희
    • 대한한방내과학회지
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    • 제38권6호
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    • pp.1096-1100
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    • 2017
  • The carotid artery is one of the main vessels supplying blood to the brain. Carotid artery stenosis is mostly caused by atherosclerosis, a disease where cholesterol is deposited in the arterial blood vessels. Tremor refers to rhythmic shaking of a body part. Tremor is a symptom of many diseases, including Parkinson's disease, essential tremor, orthostatic tremor, cerebellar disease, peripheral neuropathy, and alcohol withdrawal. Tremors may be classified as postural, rest, and action tremors. Tremor of a patient with stenosis of the left carotid artery decreased with acupuncture treatment. The acupoints were GB20, TE17, GV8 and GV11. This case shows that the acupuncture treatment is effective against tremor.

양측 대동맥-신동맥 동시 우회술 치험;1례 보고 (Bilateral Aorto-Renal Bypasses - Report of One Case -)

  • 윤영철
    • Journal of Chest Surgery
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    • 제25권2호
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    • pp.200-204
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    • 1992
  • A 63 year old male had suffered from hypertension and angina pectoris for 4 years, On physical examination, blood pressure was 150/110 mmHg with medication of antihypertensive drugs. Aortogram showed the stenosis of the left renal artery, the complete occlusion of the right renal artery, and atherosclerotic change of abdominal aorta. Blood urea nitrogen was 25 mg/dl, serum creatinine was 1.2 mg/dl, and renin activity in peripheral blood was 8.7 ng /ml /hour, The stenosis of left renal artery and the complete occlusion of right renal artery should have produced the renovascular hypertension Bilateral aorto-renal bypasses with saphenous grafts were done for treatment of ren-ovascular hypertension Postoperatively, blood pressure was normalized with only small dosage of antihypertensive drugs.

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돔페이돈의 신장작용 (Renal Action of Domperidone in Dog)

  • 고석태;최홍석
    • 약학회지
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    • 제37권6호
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    • pp.561-570
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    • 1993
  • Renal action of domperidone known as dopamine receptor blocker and effect of domperidone on renal function of dopamine were investigated in dog. Domperidone, when administered into vein, produced diuretic action by the improvement of renal hemodynamic state, when given into a renal artery, elicited diuretic action accompanied with natriuresis in only experimental kidney, whereas domperidone given into carotid artery exhibited antidiuretic action by the decrease of Na$^{+}$ excretion in urine. Diuretic action of dopamine was not influenced by domperidone given into vein or into a renal artery, was blocked by domperidone given into carotid artery. Above results suggest that domperidone produced both peripheral diuretic and central antidiuretic action, and domperidone do not block diuretic action by renal hemodynamic improvement of dopamine in kidney.

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A Study on the Relationship between Changes in Cerebral Blood Flow and Depression Index after Smoking

  • Gil-Hyun Lee;Kyung-Yae Hyun
    • 대한의생명과학회지
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    • 제29권1호
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    • pp.34-40
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    • 2023
  • Smoking is one of the three major risk factors for vascular disease along with hypertension and hyperlipidemia. It is true that smoking has a negative effect on the circulatory system, and the frequency of coronary artery disease and peripheral vascular disease is significantly increased in smokers. Many epidemiological studies report that smokers have an approximately two-fold increased risk of coronary artery disease compared to non-smokers. This study was designed to investigate the relationship between cerebral blood flow change and depression index after acute smoking. Cerebral blood flow tests were performed before and after smoking in 8 subjects. Changes in blood flow after smoking were correlated with the depression score and negatively correlated with the depression score. In particular, there was a strong correlation with changes in blood flow in anterior cerebral artery. It is well known that changes in blood flow after smoking have a negative effect. In addition, considering the study that smoking aggravates the symptoms of depression, it was found that smoking and depression are factors that negatively affect each other.

Prognostic Factors in Patients Treated with DrugCoated Balloon Angioplasty for Symptomatic Peripheral Artery Disease

  • Sigala, Fragiska;Galyfos, George;Stavridis, Kyriakos;Tigkiropoulos, Konstantinos;Lazaridis, Ioannis;Karamanos, Dimitrios;Mpontinis, Vangelis;Melas, Nikolaos;Zournatzi, Ioulia;Filis, Konstantinos;Saratzis, Nikolaos
    • Vascular Specialist International
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    • 제34권4호
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    • pp.94-102
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    • 2018
  • Purpose: Aim of this study is to report real-life experience on the treatment of peripheral artery disease (PAD) with a specific drug-coated balloon (DCB), and to evaluate potential prognostic factors for outcomes. Materials and Methods: This is a retrospective study reporting outcomes in patients with PAD who were treated with the Lutonix DCB during a four-year period. Major outcomes included: all-cause mortality, amputation, clinical improvement, wound healing and target lesion revascularization (TLR). Mean follow-up was $24.2{\pm}2.3$ months. Results: Overall, 149 patients (mean age: $68.6{\pm}8.3$ years; 113 males) were treated, either for intermittent claudication (IC) (n=86) or critical limb ischemia (CLI) (n=63). More than half the target lesions (n=206 in total) were located in the superficial femoral artery and 18.0% were below-the-knee lesions. CLI patients presented more frequently with infrapopliteal (P=0.002) or multilevel disease (P=0.0004). Overall, all-cause mortality during follow-up was 10.7%, amputation-free survival was 81.2% and TLR-free survival was 96.6%. CLI patients showed higher all-cause mortality (P=0.007) and total amputation (P=0.0001) rates as well as lower clinical improvement (P=0.0002), compared to IC patients. Coronary artery disease (CAD), gangrene and infrapopliteal disease were found to be predictors for death whereas CLI and gangrene were found to be predictors for amputation, during follow-up. Conclusion: PAD treatment with Lutonix DCBs seems to be an efficient and safe endovascular strategy yielding promising results. However, CAD, gangrene, CLI and infrapopliteal lesions were found to be independent predictors for adverse outcomes. Larger series are needed to identify additional prognostic factors.

말초성 안면마비에서 중두개와 접근법에 의한 안면신경 감압술 : 3례 보고 (Facial Nerve Decompression via Middle Fossa Approach : Report of Three Cases)

  • 조준;박성호;김재영
    • Journal of Korean Neurosurgical Society
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    • 제30권4호
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    • pp.479-485
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    • 2001
  • Objective : Several conservative treatments have been tried in peripheral facial nerve paralysis, because 80% of patients recover spontaneously. Surgical decompression may be helpful to the residual, medically intractable patients. We present here our experiences of facial nerve decompression via middle fossa approach, which seems to be one of good surgical therapeutic options for medically refractory peripheral facial nerve paralysis. Method : Three cases of medically intractable peripheral type facial paralysis were microscopically operated via middle cranial fossa approach to decompress the labyrinthine segment of the facial nerve and geniculate ganglion by searching landmarks of middle meningeal artery, greater superficial petrosal nerve and facial hiatus. Results : After operation, two cases of Bell's palsy improved substantially and one case of post-traumatic facial paralysis improved partially. Conclusion : This report is presented to describe the surgical facial nerve decompression via middle fossa for early control of peripheral type facial paralysis. Surgical decompression of edematous peripherally paralysed facial nerve could be preferred to conservative treatment in some patients although more surgical experience should be required.

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