• Title/Summary/Keyword: Aorta, abdominal

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The Effect of Rheum palmatum L. and Rheum undulatum L. on Rat Thoracic Aorta and Abdominal Aorta

  • Kim, Tack;Kim, Hyung-Hwan;Ahn, Duk-Kyun;Choi, Ho-Young
    • The Journal of Korean Medicine
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    • v.24 no.4
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    • pp.87-91
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    • 2003
  • Objectives: To examine the relaxational response to the water extract of Rheum palmatum L. and Rheum undulatum L. on rat thoracic aorta and abdominal aorta. Methods: Segments of thoracic aorta and abdominal aorta obtained from rats immediately after delivery were mounted in organ baths superfused on a polygraph. Results : We found that the thoracic aorta segments responded to the water extract of genus Rheum with a dose-dependent vasorelaxation. At $10^{-4}$ M 5-HT, the maximal contraction force was 93.5% of the maximum KCI-response. The 5-HT induced contractions at $10^{-4}$ M were inhibited by 86.4% and 62.1 % after addition of the high concentrations of R. palmatum root (RPR) and leaf (RPL) and R. undulatum root (RUR) and leaf (RUL). At 10 mg/ml RPR and RUR, the relaxational response at thoracic aorta and abdominal aorta with and without endothelium were 86.4%, 83.2%, 85.8%, and 62.1% of the maximum 5-HT induced contraction. Conclusion: Our result showed that RPL and RUL induced dose-dependent vasorelaxation on rat thoracic aorta and abdominal aorta, and that RPL and RUL roots have more potent effects than the leaves.

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Tuberculous Aneurysm of the Abdominal Aorta: Endovascular Repair Using Stent Grafts in Two Cases

  • Wei Chiang Liu;Byung Kook Kwak;Kyo Nam Kim;Soon Yong Kim;Joung Joo Woo;Dong Jin Chung;Ju Hee Hong;Ho Sung Kim;Chang Jun Lee;Hyung Jin Shim
    • Korean Journal of Radiology
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    • v.1 no.4
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    • pp.215-218
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    • 2000
  • Tuberculous aneurysm of the aorta is exceedingly rare. To date, the standard therapy for mycotic aneurysm of the abdominal aorta has been surgery involving in-situ graft placement or extra-anatomic bypass surgery followed by effective anti-tuberculous medication. Only recently has the use of a stent graft in the treatment of tuberculous aortic aneurysm been described in the literature. We report two cases in which a tuberculous aneurysm of the abdominal aorta was successfully repaired using endovascular stent grafts. One case involved is a 42-year-old woman with a large suprarenal abdominal aortic aneurysm and a right psoas abscess, and the other, a 41-year-old man in whom an abdominal aortic aneurysm ruptured during surgical drainage of a psoas abscess.

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A Case of Extensive Thoracoabdominal Aortic Aneurysm Treated by Excision and Replacement of Dacron Graft (외과적 치료를 가한 광범위 흉복부 대동맥류 1례)

  • 유회성;유원하
    • Journal of Chest Surgery
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    • v.3 no.2
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    • pp.139-142
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    • 1970
  • A Case of thoraco-abdominal aortic aneurysm involving from the lower descending- thoracic aorta to bifurcation of abdominal aorta into both common iliac artery is presented in special view-point of its surgical technic and postoperative complication. Operative technic is the most popular method of Dr. De Bakey's shunt of Dacron which is bridging thoracic aorta to terminal abdominal aorta primarily as temporary shunt but after anastomosing the individual hranch of left Renal, Celiac, Sup. meseateric and right Renal artery to corresponding part of the Dacron tube, the Dacroa graft is fixed as permanent graft in stead of excised thoraco-abdominal aorta. The patient died of acute renal failure and increasing evidence of CNS damage due to respiratory acidosis on 6th postoperative day hut this report will he a good experience in respect of further progress of aortic surgery in Korea.

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Cord-like Atresia of the Abdominal Aorta Due to Takayasu Arteritis in Middle Aged Woman - A case Report - (중년 여자 환자에서 Takayasu 동맥염에 의한 복부 대동맥의 삭양 폐쇄 - 수술치험 1례-)

  • 이봉근;조성래;조봉균;이재화;조영덕
    • Journal of Chest Surgery
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    • v.34 no.11
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    • pp.870-874
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    • 2001
  • Takayasu arteritis is a chronic non-specific inflammatory arteriopathy that involves primarily the first branches of aortic arch but may also affect the aorta and any of its primary branches. A characteristic trait of the disease is that most of the patients are young females of mainly Asian and South American origin. Recently, we experienced a rare case of Takayasu arteritis which showed a cord-like atresia of abdominal aorta just below renal arteries in 52-year-old woman. We performed a side to side bypass graft from descending thoracic aorta to abdominal aorta just above the aortic bifurcation with a 18mm PTFE(polytetrafluoroethylene) vascular graft. The postoperative course was uneventful. .

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Takayasu`s Disease Associated with Abdominal Coarctation and Renovascular Hypertension - Report of one case - (Takayasu 질환에서 신성 고혈압을 동반한 복부 대동맥 협착 수술 치험 - 1례 보고 -)

  • 이종락
    • Journal of Chest Surgery
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    • v.23 no.4
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    • pp.791-798
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    • 1990
  • Takayasu’s disease produces the occlusive and aneurysmal lesions of major branches of the aorta. Angiography is the most important diagnostic procedure in Takayasu’s disease. Surgical treatment is often justified to avoid the possible lethal consequences of hypertension on the heart, kidney, and brain, as well as in the case of aneurysm because of its risk of rupture. We experienced one case of the Takayasu’s disease associated with abdominal coarctation and renovascular hypertension. The patient was 17 years old female and had suffered from hypertension for 14 months. On physical examination, BP was 150/100 mmHg in the right arm and 120/80 mmHg in the left arm. The pulses of the left brachial and femoral arteries were weakly palpable. Aortogram showed the stenosis of the left common and subclavian arteries, coarctation of the abdominal aorta, and stenosis of the right renal artery and complete occlusion of the left renal artery. The stenosis of the right renal artery and the occlusion of the left renal artery produced the renovascular hypertension. She underwent aorta-aortic bypass for the coarctation of the abdominal aorta and aorta-renal bypass for treatment of renovascular hypertension Postoperatively, both femoral pulses were equally palpable. On discharge, antihypertensive drugs were discontinued. She has remained normotensive for last one year.

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Extra-Anatomic Ascending Aorta to Abdominal Aorta Bypass in Takayasu Arteritis Patients with Mid-Aortic Syndrome

  • Kim, Hak Ju;Choi, Jae-Woong;Hwang, Ho Young;Ahn, Hyuk
    • Journal of Chest Surgery
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    • v.50 no.4
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    • pp.270-274
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    • 2017
  • Background: We evaluated the operative outcomes of an extra-anatomic bypass from the ascending aorta to the abdominal aorta in patients with type II or III Takayasu arteritis (TA) with mid-aortic syndrome. Methods: From 1988 to 2014, 8 patients with type II (n=2) or III (n=6) TA underwent an ascending aorta to abdominal aorta bypass. The mean patient age was $43.5{\pm}12.2years$ and the mean peak pressure gradient between the upper and lower extremities was $54.8{\pm}39.0mm\;Hg$. The median follow-up duration was 54.4 months (range, 17.8 to 177.4 months). Results: There were no cases of operative mortality. The mean peak pressure gradient significantly decreased to $-2.4{\pm}32.3mm\;Hg$ (p=0.017 compared to the preoperative value). Late death occurred in 2 patients. The symptoms of upper extremity hypertension and claudication improved in all patients. The bypass grafts were patent at $47.1{\pm}58.9months$ in 7 patients who underwent follow-up imaging studies. Conclusion: An extra-anatomic ascending aorta to abdominal aorta bypass could be an effective treatment option for severe aortic steno-occlusive disease in patients with type II or III TA, with favorable early and long-term outcomes.

Comparison of Correlation Coefficients and Intraclass Correlation Coefficients Between Two-way FSI Flow Velocity of Simulated Abdominal Aorta and Human 4D Flow MRI Flow Velocity (시뮬레이션 복부 대동맥의 양방향 FSI 유속과 인체 4D flow MRI 유속의 상관계수, 급내상관계수 비교)

  • Ahn, Hae Nam;Kim, Jung Hun;Park, Ji eun;Choi, Hyeun Woo;Lee, Jong Min
    • Journal of Biomedical Engineering Research
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    • v.42 no.4
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    • pp.143-149
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    • 2021
  • In order to predict and prevent the disease of the abdominal aorta, which is the largest artery in the human body and the most common aneurysm, the normal arterial blood flow operation should be considered. To this end, we are trying to solve problems that may arise in the future by executing FSI based on the data obtained from 4D flow MRI. However, to match the similarity between the 4D flow MRI flow and the FSI flow, correlation was used in previous papers, but the correlation did not show the degree of agreement. Therefore, in this paper, we analyzed the correlation between the 4D flow MRI flow velocity of the human abdominal aorta and the two-way FSI flow velocity in which the three physical properties used for the aortic FSI were added to the CT abdominal aorta 3D model and the interclass correlation coefficient. As a result, the physical property M2 showed the highest similarity in correlation and intraclass correlation coefficient, and this property is intended to be helpful in the future study of the abdominal aortic two-way FSI flow rate.

Total Occlusion of the Abdominal Aorta Caused by Detachment of Cardiac Myxoma

  • Hong, Sung-Yong;Park, Kyung-Taek;Choe, Hyun-Min
    • Journal of Chest Surgery
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    • v.45 no.3
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    • pp.183-185
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    • 2012
  • Abdominal aortic occlusion (AAO) caused by detachment of cardiac myxoma (CM) is a very rare complication in patients with CM. Although the nature of CMs has been well established, detachment of CM may cause unexpected serious complications such as vicious embolic events. Actually, in several cases of AAO caused by detachment of CM, it has been reported that CM fragments easily migrated to the brain, heart, and lungs, and caused lifelong neurological complications despite appropriate surgical therapy. Herein, we report a case of a patient with AAO caused by detachment of CM who underwent CM excision and abdominal aortic thromboembolectomy. Additionally, we have presented the preoperative and postoperative images using 64-multidetector computed tomography.

Surgical Treatment of Aortic Aneurysm - Review of 37 cases between 1984 and 1987 - (대동맥류의 외과적 치료 -37례 보고 (1984-1987) -)

  • Won, Yong-Soon;Ahn, Hyuk
    • Journal of Chest Surgery
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    • v.21 no.3
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    • pp.488-496
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    • 1988
  • Thirty-seven patients of aortic aneurysm underwent operations during January 1984 December 1987 at our hospital. Twenty-six patients had aneurysms involving ascending aorta, three patients had aneurysms involving both ascending aorta and abdominal aorta. and eleven patients had aneurysms involving descending thoracic or abdominal aorta. Among the patients who had aneurysms involving ascending aorta, annuloaortic ectasia with aortic regurgitation were thirteen and all of these underwent ascending aorta graft replacement + AVR with composite graft. The patients who had aortic regurgitation due to ascending aortic dissection were three and all of these underwent intraluminal ringed graft insertion at ascending aorta + aortic valve resuspension. Intraluminal ringed graft insertion was safe, simple, and fast method in the operation for aortic aneurysm. Eleven patients were underwent this operation and the results were good. Major causes of death of the patients who underwent aortic aneurysm operation are underlying cardiovascular diseases or delayed rupture of the aneurysm or complications related newly appeared aneurysm. Among our patients, dissection progressions were appeared in two but neither severe nor complicated. And no patient died from delayed rupture of aneurysm or complications related newly appeared aneurysm. All patients were followed up via OPD and were controlled hypertension or heart failure if present. Operative mortality is 18.9\ulcornera in all, 23% in patients who had aneurysms involving ascending aorta and 7.6` who had aneurysms involving descending thoracic or abdominal aorta. Comparing with other reports, our operative mortality is still high but improved steadily. So we recommend aggressive surgical management of the aortic aneurysm.

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Hand-assisted Laparoscopic Abdominal Aortic Aneurysm Repair Through a 6 cm Incision (6 cm 절개선을 통한 수기 보조 복강경 복부 대동맥류의 수술)

  • Choi, Hyung-Yoon;Song, Suk-Won;Yi, Gi-Jong
    • Journal of Chest Surgery
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    • v.42 no.5
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    • pp.645-648
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    • 2009
  • We performed hand-assisted laparoscopic surgery for a 67-year-old male with a 5.6 cm sized abdominal aortic aneurysm. To the best of our knowledge, this is the first report in Korea. After an initial hand dissection of the abdominal aorta under laparoscopy, we performed proximal anastomosis and distal abdominal. aorta suture ligation through a 6 cm abdominal incision. Distal anastomosis was done at the bilateral common femoral arteries. He resumed his oral intake 6 hours after the surgery and discharged at the $4^{th}$ postoperative day.