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Ascending aorta aneurysm

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https://www.readbyqxmd.com/read/28925047/voxel-by-voxel-4d-flow-mri-based-assessment-of-regional-reverse-flow-in-the-aorta
#1
Xin Shen, Susanne Schnell, Alex J Barker, Kenichiro Suwa, Lingzi Tashakkor, Kelly Jarvis, James C Carr, Jeremy D Collins, Shyam Prabhakaran, Michael Markl
BACKGROUND: Complex and reverse flow in the aorta has been implicated in aneurysm development and stroke via retrograde embolization. PURPOSE: To evaluate global and regional differences between standard 2D plane-based and volumetric voxel-based quantification of regional forward/reverse flow, and reverse flow fraction (RFF) in the aorta. STUDY TYPE: Retrospective. SUBJECTS: In all, 35 subjects: 10 healthy controls (age: 57 ± 7 years, nine male), nine patients without aortic valve regurgitation (AR) (age: 63 ± 10 years, seven male), six patients with mild AR (age: 66 ± 6 years, five male), and 10 with moderate or severe AR (age: 60 ± 16 years, eight male)...
September 18, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28910688/aortic-fibromuscular-dysplasia-complicated-by-dissection-a-case-report-and-review-of-literature
#2
Takashi Tasaki, Kazuhito Hatanaka, Mari Kirishima, Shun Ohnishi, Yuko Goto, Ikumi Kitazono, Tsubasa Hiraki, Sohsuke Yamada, Michiyo Higashi, Akihide Tanimoto
Fibromuscular dysplasia (FMD) is an idiopathic, segmental, nonatherosclerotic, non-inflammatory vascular disease, which is often complicated by the occurrence of dissection. Although it is known to occur in all arteries, aortic involvement is relatively rare. To date, 33 cases of aortic FMD have been reported in available English literature, among which only three cases have been complicated by the occurrence of dissection. We describe the case of a 40-year-old woman diagnosed with aortic FMD complicated by the occurrence of a type A aortic dissection...
August 9, 2017: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/28906534/management-of-a-complicated-redo-giant-dissecting-aortic-aneurysm
#3
Ibrahim Kara, Alper Erkin, MHalil Ibrahim Erkengel, Kiyasettin Asil
Giant aortic aneurysm is defined as an aneurysm of the aorta of greater than 10 cm in diameter. This rare condition is associated with a high risk of morbidity and mortality and it may lead to fatal complications such as rupture and/or dissection if not managed with proper surgical planning and expertise. Other than atherosclerosis, the main causes of giant ascending aortic aneurysms include Marfan and Ehlers-Danhlos syndromes. Herein we report on a young male patient who had had an aortic valve replacement five years earlier due to a bicuspid aortic valve leading to aortic failure, accompanied by aortic coarctation...
July 23, 2017: Cardiovascular Journal of Africa
https://www.readbyqxmd.com/read/28905268/fluid-and-biomechanical-analysis-of-ascending-thoracic-aorta-aneurysm-with-concomitant-aortic-insufficiency
#4
F Condemi, S Campisi, M Viallon, T Troalen, G Xuexin, A J Barker, M Markl, P Croisille, O Trabelsi, C Cavinato, A Duprey, S Avril
We present a comprehensive and original framework for the biomechanical analysis of patients affected by ascending thoracic aorta aneurysm and aortic insufficiency. Our aim is to obtain crucial indications about the role played by deranged hemodynamics on the ATAAs risk of rupture. Computational fluid dynamics analysis was performed using patient-specific geometries and boundary conditions derived from 4D MRI. Blood flow helicity and wall shear stress descriptors were assessed. A bulge inflation test was carried out in vitro on the 4 ATAAs after surgical repair...
September 13, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28894059/-re-operation-for-saccular-aneurysm-after-ascending-aortic-replacement-with-homograft-report-of-a-case
#5
Masahiro Ikeda, Toshihisa Asakura, Kazuhiko Uwabe, Kozo Morita, Atsushi Iguchi, Hiroshi Niinami
A 62-years-old female had undergone ascending aortic replacement with homograft for graft infection and mediastinitis after initial replacement of ascending aorta due to acute type A dissection. Ten years after homograft replacement, follow up computed tomography showed acute growing saccular aneurysm of the homograft without infectious symptoms. We urgently performed Bentall procedure and hemiarch replacement successfully. Pathological diagnosis was true aneurysm of the homograft. She was discharged from hospital without any complication and has been quite uneventful 7 years after surgery...
September 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28894052/-three-surgical-cases-of-quadricuspid-aortic-valve
#6
Yoshikazu Motohashi, Takahiro Katsumata, Tatsuya Suzuki, Ryo Shimada, Hayato Konishi, Shinji Fukuhara, Sachiko Kanki, Masahiro Daimon, Hideki Ozawa, Shintaro Nemoto
Quadricuspid aortic valve is a rare congenital disease. We experienced 3 surgical cases of quadricuspid aortic valve. Patient 1 was a 72-year-old man who was noted to have a quadricuspid aortic valve associated with aortic regurgitation and an ascending aortic aneurysm(51 mm in diameter). He underwent replacement of the aortic valve and the ascending aorta. Patient 2 was a 71-year-old man with severe aortic stenosis, regurgitation, and coronary triple vessel disease. He underwent aortic valve replacement and coronary artery bypass grafting...
September 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28890066/ascending-aorta-endovascular-repair-of-a-symptomatic-penetrating-atherosclerotic-ulcer-with-a-custom-made-endo-graft
#7
Theodoros Kratimenos, Nikolaos G Baikoussis, Dimitrios Tomais, Michalis Argiriou
BACKGROUND: Thoracic endovascular aortic repair (TEVAR) has become lately the procedure of choice in the treatment of most pathologies of descending thoracic aorta. Aortic arch aneurysms also came to be treated by TEVAR with various hybrid techniques or custom made scalloped/fenestrated stent-grafts. Zone 0; ascending TEVAR is more challenging than TEVAR of the descending thoracic aorta or aortic arch because of the more complex pathology, hemodynamics, and anatomy. Ascending TEVAR can be a lifesaving treatment in selected high surgical risk patients...
September 7, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28887263/changes-in-geometry-and-cardiac-deformation-of-the-thoracic-aorta-after-thoracic-endovascular-aortic-repair-tevar
#8
Kelsey Hirotsu, Ga-Young Suh, Jason T Lee, Michael D Dake, Dominik Fleischmann, Christopher P Cheng
BACKGROUND: TEVAR has dramatically expanded treatment options for patients with thoracic aortic pathology. The interaction between endografts and the dynamic anatomy of the thoracic aorta is not well characterized for repetitive physiologic stressors and subsequent issues related to long-term durability. Through 3D modeling we sought to quantify cardiac-induced aortic deformation before and after TEVAR to assess the impact of endografts on dynamic aortic anatomy. METHODS: Eight patients with acute (n = 4) or chronic (n = 3) Type B dissections, or chronic arch aneurysm (n = 1), underwent TEVAR with a single (n = 5) or multiple (n = 3) Gore C-TAG(s)...
September 5, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28886508/effects-of-clinico-pathological-risk-factors-on-in-vitro-mechanical-properties-of-human-dilated-ascending-aorta
#9
Anna Ferrara, Pasquale Totaro, Simone Morganti, Ferdinando Auricchio
Ascending aorta aneurysms (AsAA) are associated with a degeneration of the aortic wall tissue, which leads to changes in tissue mechanical properties. Risk factors for the development of the AsAA disease are recognized in patient age and gender, valve type, hypertension, diabetes mellitus, smoking history, and a prior diagnosis of Marfan syndrome. The present study aims to assess how such clinico-pathological factors can affect the mechanical properties of human dilated ascending aorta. Specimens of AsAA are excised from 68 patients who underwent elective AsAA surgical repair and stretched until rupture during the execution of uniaxial tensile tests...
August 31, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28884233/in-vivo-strain-analysis-of-dilated-ascending-thoracic-aorta-by-ecg-gated-ct-angiographic-imaging
#10
Salvatore Pasta, Valentina Agnese, Marzio Di Giuseppe, Giovanni Gentile, Giuseppe M Raffa, Diego Bellavia, Michele Pilato
Accurate assessment of aortic extensibility is a requisite first step for elucidating the pathophysiology of an ascending thoracic aortic aneurysm (ATAA). This study aimed to develop a framework for the in vivo evaluation of the full-field distribution of the aortic wall strain by imaging analysis of electrocardiographic- (ECG) gated thoracic data of 34 patients with ATAA. Seven healthy controls (i.e., non-aneurysmal aorta) from patients who underwent ECG-gated CT angiography for coronary artery diseases were included for comparison...
September 7, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28875285/current-status-of-cardiovascular-surgery-in-japan-2013-and-2014-a-report-based-on-the-japan-cardiovascular-surgery-database-5-thoracic-aortic-surgery
#11
REVIEW
Hideyuki Shimizu, Norimichi Hirahara, Noboru Motomura, Hiroaki Miyata, Shinichi Takamoto
BACKGROUND: Although open aortic repair (OAR) is still considered to be a standard treatment for thoracic aortic diseases, the indications for thoracic endovascular treatment (TEVAR)/hybrid aortic repair (HAR) have expanded in recent years. The purpose of this study was to review the current status of treatment of thoracic aortic diseases in Japan. METHODS: Data for 2013 and 2014 concerning surgery for diseases of the thoracic/thoracoabdominal aorta were extracted from the Japan Cardiovascular Surgery Database (JCVSD)...
September 5, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28870223/modified-candy-plug-technique-for-chronic-type-b-aortic-dissection-with-aneurysmal-dilatation-a-case-report
#12
Sohsyu Kotani, Yoshito Inoue, Mio Kasai, Satoru Suzuki, Takashi Hachiya
BACKGROUND: The original 'candy-plug' technique has been reported to be beneficial for the treatment of residual perfused false lumen in patients with aortic dissection. However, this technique is also associated with several problems, such as narrowing of the true lumen and damage to the flap or vessel wall. Therefore, we modified the procedure to overcome these problems. Here we report a case in which the patient was successfully treated using the modified procedure. CASE PRESENTATION: A 59-year-old man presented with chronic type B aortic dissection with aneurysmal dilatation...
September 5, 2017: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28868317/aorto-cutaneous-fistula-and-false-aneurysm-of-the-ascending-aorta-five-years-after-its-prosthetic-replacement-for-stanford-type-a-acute-aortic-dissection
#13
Pierre Demondion, Dorian Verscheure, Pascal Leprince
Aorto-cutaneous fistula and false aneurysm of the ascending aorta in patients who previously underwent Stanford Type A acute aortic dissection are rare and severe complications. Surgical correction remains a demanding challenge. In a case of false aneurysm rupture during redo sternotomy, selective cannulation of the right axillary and left carotid arteries allowed an efficient method of cerebral perfusion.
April 2017: Aorta (Stamford, Conn.)
https://www.readbyqxmd.com/read/28868316/a-rare-and-late-complication-after-left-ventricular-assist-device-explantation
#14
George Gradinariu, André R Simon, Jullien Gaer
Late complications can arise after explantation of a left ventricular assist device. We report the case of a patient who presented at the age of 19 years with peri-partum cardiomyopathy and was initially managed with a biventricular support device, which was subsequently upgraded to an ambulatory left ventricular assist device. This was successfully explanted after myocardial recovery via a minimally invasive approach 7 months later. The patient re-presented 5 years following explantation with hemoptysis. At redo sternotomy, a 10-cm remnant of the outflow graft was found to be eroding the surface of the right lung...
April 2017: Aorta (Stamford, Conn.)
https://www.readbyqxmd.com/read/28868315/impact-of-thoracic-endovascular-repair-on-pulsatile-aortic-strain-in-acute-type-b-aortic-dissection-preliminary-results
#15
Foeke J H Nauta, Guido H W van Bogerijen, Michele Conti, Chiara Trentin, Frans L Moll, Joost A Van Herwaarden, Ferdinando Auricchio, Santi Trimarchi
BACKGROUND: The impact of thoracic endovascular aortic repair (TEVAR) on pulsatile aortic strain remains undetermined in patients with Type B aortic dissection (TBAD). Therefore, we quantified pulsatile aortic strain in TBAD patients and control subjects. METHODS: We retrospectively analyzed two TBAD patients from our database with cardiac-gated computed tomography angiography imaging available before and after TEVAR and two control subjects (67- and 76-year-old males)...
April 2017: Aorta (Stamford, Conn.)
https://www.readbyqxmd.com/read/28844469/a-systematic-review-of-primary-endovascular-repair-of-the-ascending-aorta
#16
REVIEW
Corbin E Muetterties, Rohan Menon, Grayson H Wheatley
OBJECTIVE: Endovascular repair of the ascending aorta is currently limited to patients at high surgical risk with aortic diseases originating above the sinotubular junction. A number of different endovascular technologies and approaches have been used, although no consensus exists regarding a standardized technique. To better understand real-world endovascular approaches to the ascending aorta, we performed a comprehensive review of the types of endovascular aortic stents and associated vascular access used in repair of the ascending aorta...
August 22, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28814172/novel-endovascular-management-of-proximal-type-a-debakey-ii-aortic-dissection-with-a-patent-foramen-ovale-occluder
#17
Xun Yuan, Andreas Mitsis, David Mozalbat, Christoph A Nienaber
PURPOSE: To present a novel endovascular management option that avoids open surgery in selected patients with subacute type A aortic dissection (DeBakey II). CASE REPORT: A 75-year-old woman with previous infrarenal abdominal aortic aneurysm repaired in 2006 and multiple comorbidities (EURO score II 20.5%) was admitted with chest pain; computed tomography angiography (CTA) showed a new dissection in the ascending aorta just above the right coronary ostium. As the patient was considered unfit to undergo surgery, an endovascular solution was suggested after multidisciplinary team discussion...
August 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28805011/bicuspid-and-unicuspid-aortic-valves-different-phenotypes-of-the-same-disease-insight-from-the-gentac-registry
#18
Joseph M Krepp, Mary J Roman, Richard B Devereux, Adrienne Bruce, Siddharth K Prakash, Shaine A Morris, Dianna M Milewicz, Kathryn W Holmes, William Ravekes, Ralph V Shohet, Reed E Pyeritz, Cheryl L Maslen, Barbara L Kroner, Kim A Eagle, Liliana Preiss, Federico M Asch
BACKGROUND: Unicuspid aortic valve (UAV) is a rare disorder, often difficult to distinguish from bicuspid aortic valve (BAV). BAV and UAV share valve pathology such as the presence of a raphe, leaflet fusion, aortic stenosis, aortic regurgitation, and/or ascending aortic dilatation, but a comprehensive echocardiographic comparison of patients with UAV and BAV has not been previously performed. METHODS: We investigated UAV and BAV patients at an early stage of disease included in GenTAC, a national registry of genetically related aortic aneurysms and associated cardiac conditions...
August 14, 2017: Congenital Heart Disease
https://www.readbyqxmd.com/read/28773988/investigation-on-the-regional-loss-factor-and-its-anisotropy-for-aortic-aneurysms
#19
Nastaran Shahmansouri, Mohammed Alreshidan, Alexander Emmott, Kevin Lachapelle, Ismaïl El-Hamamsy, Raymond Cartier, Richard L Leask, Rosaire Mongrain
An aortic aneurysm is a lethal arterial disease that mainly occurs in the thoracic and abdominal regions of the aorta. Thoracic aortic aneurysms are prevalent in the root/ascending parts of the aorta and can lead to aortic rupture resulting in the sudden death of patients. Understanding the biomechanical and histopathological changes associated with ascending thoracic aortic aneurysms (ATAAs), this study investigates the mechanical properties of the aorta during strip-biaxial tensile cycles. The loss factor-defined as the ratio of dissipated energy to the energy absorbed during a tensile cycle-the incremental modulus, and their anisotropy indexes were compared with the media fiber compositions for aneurysmal (n = 26) and control (n = 4) human ascending aortas...
October 26, 2016: Materials
https://www.readbyqxmd.com/read/28765187/non-atherosclerotic-aortic-mural-thrombus-a-rare-source-of-embolism
#20
Julian A Marin-Acevedo, Andree H Koop, Jose L Diaz-Gomez, Pramod K Guru
A 54-year-old man presented to the emergency department with acute left-sided chest pain and left upper quadrant abdominal pain. He had a significant history of squamous cell carcinoma of the lung previously treated with right pneumonectomy who ; is currently receiving adjuvant chemotherapy with cisplatin. Physical examination was remarkable for tachycardia, hypertension and mild abdominal tenderness. CT angiography revealed an aortic mural thrombus in the ascending aorta and aortic arch without dissection, aneurysm or tortuosity of the aorta...
August 1, 2017: BMJ Case Reports
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