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Thoracic Aorta01:15

Thoracic Aorta

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The thoracic section of the aorta begins at the T5 vertebra and extends to the T12 level at the diaphragm, initially progressing through the mediastinum to the left of the spinal column. Throughout its course in the thoracic segment, the thoracic aorta emits various offshoots known collectively as visceral and parietal branches. The branches that predominantly supply blood to visceral organs are termed visceral branches and include bronchial, pericardial, esophageal, and mediastinal arteries,...
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Abdominal Aorta01:25

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Once the aorta traverses the diaphragmatic plane at the aortic hiatus, it is known as the abdominal aorta. This anatomical structure is positioned leftward of the spinal column, encased within a cocoon of adipose tissue behind the peritoneal cavity. It terminates at the L4 vertebra, where it splits into the common iliac arteries. Prior to this bifurcation, the abdominal aorta gives rise to several vital branches.
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Aortic Regurgitation III: Medical Management01:25

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Aortic regurgitation (AR) is when the aortic valve does not close or seal properly, leading to backward blood circulation from the aorta into the left ventricle during diastole. Common causes of AR include rheumatic heart disease, congenital valve defects, and aortic root dilation. Managing AR requires a multifaceted approach to alleviate symptoms, preserve left ventricular function, and address the underlying cause of the regurgitation. Patients with symptomatic AR or significant left...
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IntroductionAortic regurgitation is characterized by the backward flow of blood from the aorta into the left ventricle during diastole and arises from the improper closure of the aortic valve. This condition results in left ventricular volume overload and can stem from both acute and chronic etiologies, each contributing uniquely to the disease's progression and symptomatology.Acute and Chronic CausesAcute aortic regurgitation often results from events that suddenly impair the integrity of the...
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The coronary arteries, originating from the ascending aorta, bifurcate from two sinuses located within the ascending aorta. Positioned just above the aortic semilunar valve, these sinuses house essential aortic baroreceptors and chemoreceptors, crucial for maintaining cardiac function. The left coronary artery and the right coronary artery branch off from the left posterior and anterior aortic sinuses, respectively.
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Aneurysm management involves either conservative medical therapy or surgical intervention, depending on the size and symptoms of the aneurysm. Conservative management is generally reserved for smaller, asymptomatic aneurysms, while larger or symptomatic aneurysms often necessitate surgical repair.Conservative Medical TherapyFor small, asymptomatic aneurysms, particularly abdominal aortic aneurysms (AAA) less than 5.5 centimeters in diameter, conservative medical therapy is recommended. This...
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Novel and Innovative Hybrid Technique for Type A Aortic Dissection
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Single Stem Visceral Debranching for Complex Aortic Disease.

Jean-Michel Davaine1,2, Jérémie Jayet2, Léa Oiknine2

  • 1Sorbonne Université, Faculté de Médecine Campus Pitié-Salpêtrière, Paris, France.

EJVES Vascular Forum
|March 18, 2022
PubMed
Summary

A novel single stem retrograde visceral graft (SSRVG) technique offers a feasible solution for complex aortic diseases, demonstrating high vessel patency and reducing surgical complexity.

Keywords:
Aortic dissectionHybrid surgeryTEVARThoraco-abdominal aortic aneurysmVisceral vessel debranching

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Area of Science:

  • Vascular Surgery
  • Aortic Disease Management
  • Minimally Invasive Techniques

Background:

  • Complex aortic diseases, including aortic dissection (AD) and thoraco-abdominal aortic aneurysms (TAAAs), often require intricate surgical reconstructions.
  • Traditional retrograde visceral bypass techniques can be complex, involving multiple graft assemblies.

Purpose of the Study:

  • To present an original single stem retrograde visceral graft (SSRVG) technique for treating complex aortic diseases.
  • To evaluate the feasibility, outcomes, and patency rates of the SSRVG technique.

Main Methods:

  • A retrospective study of 16 patients treated between 2015 and 2019 for AD, TAAAs, or visceral occlusive disease.
  • The SSRVG technique involved visceral vessel debranching from the native infrarenal aorta or an aortic graft, with optional fenestration and thoracic endovascular aneurysm repair (TEVAR).

Main Results:

  • Sixty-nine target vessels were successfully debranched using the SSRVG technique.
  • Postoperative complications included renal insufficiency (44%), pneumonia (25%), and colonic ischemia (19%).
  • After a mean follow-up of 21 months, all debranched vessels remained patent, with no endoleaks observed.

Conclusions:

  • The SSRVG technique is a feasible and effective approach for various complex aortic conditions.
  • This technique simplifies the retroperitoneal reconstruction by utilizing a single graft.
  • High patency rates suggest the long-term viability of the SSRVG for visceral revascularization.