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Aorta dissection

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https://www.readbyqxmd.com/read/28335143/aortic-non-covered-stents-to-treat-complicated-acute-type-b-aortic-dissections-lessons-learned-from-seven-years-from-s-o-s-aorta
#1
Jean-Marc Alsac, Salma El Batti, Auréline Boitet, Marwan Abou Rjeili, Pierre Julia
No abstract text is available yet for this article.
January 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28335136/retrospective-analysis-of-type-a-aortic-dissections-after-debranching-of-the-supra-aortic-trunks-and-stentgraft-of-the-aortic-arch-the-side-clamping-of-the-ascending-aorta-is-responsible
#2
Dorian Verscheure, Julien Gaudric, Quentin Pellenc, Arnaud Roussel, Laurent Chiche, Fabien Koskas
No abstract text is available yet for this article.
January 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28329331/natural-history-of-moderately-dilated-tubular-ascending-aorta-implications-for-determining-the-optimal-imaging-interval%C3%A2
#3
Kay-Hyun Park, Suryeun Chung, Dong Jung Kim, Jun Sung Kim, Cheong Lim
OBJECTIVES: For a moderately dilated ascending aorta (diameter 35-54 mm), current guidelines recommend continuous annual or semi-annual examinations with computed tomography or magnetic resonance imaging. However, few data have shown the yield and benefit of such a protocol. This study aimed to investigate the fate of a moderately dilated ascending aorta and thereby determine the adequate imaging interval. METHODS: In our institutional database, we identified adult patients having an ascending aortic diameter ≥40 mm in contrast-enhanced computed tomography and follow-up imaging(s) after ≥1 year...
February 20, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28329082/aortic-elongation-and-the-risk-for-dissection-the-t%C3%A3-bingen-aortic-pathoanatomy-taipan-project%C3%A2
#4
Tobias Krüger, Alexandre Oikonomou, David Schibilsky, Mario Lescan, Katharina Bregel, Luise Vöhringer, Wilke Schneider, Henning Lausberg, Gunnar Blumenstock, Fabian Bamberg, Christian Schlensak
OBJECTIVES: We measured aortic dimensions, particularly length parameters, using 3D imaging with the aim of refining the risk-morphology for Stanford type A aortic dissection (TAD). METHODS: Computer tomography angiography studies were analysed using the curved multiplanar reformats. At defined landmarks, the diameters and lengths of aortic segments were recorded. Three groups were compared retrospectively: patients actually suffering from a TAD (TAD-group; n  = 150), patients before suffering a TAD (preTAD-group n  = 15) and a healthy control group ( n  = 215)...
February 16, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28327193/longitudinal-evaluation-of-aortic-hemodynamics-in-marfan-syndrome-new-insights-from-a-4d-flow-cardiovascular-magnetic-resonance-multi-year-follow-up-study
#5
Julia Geiger, Daniel Hirtler, Kristina Gottfried, Ozair Rahman, Emilie Bollache, Alex J Barker, Michael Markl, Brigitte Stiller
BACKGROUND: The aim of this 4D flow cardiovascular magnetic resonance (CMR) follow-up study was to investigate longitudinal changes in aortic hemodynamics in adolescent patients with Marfan syndrome (MFS). METHODS: 4D flow CMR for the assessment of in-vivo 3D blood flow with full coverage of the thoracic aorta was performed twice (baseline scan t1/follow-up scan t2) in 19 adolescent MFS patients (age at t1: 12.7 ± 3.6 years, t2: 16.2 ± 4.3 years) with a mean follow-up duration of 3...
March 22, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28319480/right-axillary-artery-cannulation-for-endovascular-repair-of-an-acute-type-a-aortic-dissection
#6
Corbin E Muetterties, Jeremy H Conklin, G William Moser, Grayson H Wheatley
We present the case of a 48-year-old woman with an acute type A aortic dissection that was treated with thoracic endovascular aortic repair at our institution. The patient was found to have a focal type A dissection with pericardial effusion but no tamponade physiology and no involvement of the aortic valve or root. We elected to treat the patient's type A aortic dissection with an endovascular stent because of the patient's favorable anatomy and no evidence of neurologic deficits or signs of distal malperfusion...
March 17, 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/28317794/how-should-i-treat-an-asymptomatic-aortic-coarctation-with-a-concomitant-dissection-of-the-descending-aorta
#7
Livia Luciana Gheorghe, Dabit Arzamendi, Chi Hion Li, Antonio J Barros-Membrilla, Jaime Felix Dilme Muñoz, Antonio Serra Peñaranda, Sherif Sultan, Mark S Spence, Anton Collins
No abstract text is available yet for this article.
March 20, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28315148/a-case-of-cardiac-tamponade-due-to-an-isolated-abscess-in-the-ascending-aorta-of-a-pregnant-woman-with-a-history-of-intravenous-substance-abuse
#8
Brandy Shattuck, John Livingstone
We describe the case of a 23-year-old white female, 10-12 weeks pregnant, with a history of intravenous drug use and a recently diagnosed pneumonia, who was found deceased in her bed after a night of sleep. Although postmortem serum toxicology tested positive for alprazolam, tetrahydrocannabinol, and morphine, the ultimate cause of death was determined to be cardiac tamponade secondary to an isolated abscess in the ascending aorta. The patient had several risk factors for aortic rupture and cardiac tamponade including intravenous drug use, pneumonia, and pregnancy...
March 17, 2017: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/28314643/acute-ascending-aortic-dissection-after-mdma-ecstasy-use-a-case-report
#9
Satoko Kanahara, Mostafa El-Refai, Nasser Lakkis, Rashed Tabbaa
Acute aortic dissection is rare among young patients in the absence of connective tissue disorders. One of the risk factors associated with aortic dissection among young patients is amphetamine use. We report a case of a 37-year-old female with a past medical history of hypertension presenting with syncope and altered mental status who was found to have an acute DeBakey Type I aortic dissection after ingestion of 3,4-methylenedioxymethamphetamine (MDMA), commonly known as ecstasy. This is the second case in the literature describing aortic dissection in relation to MDMA use...
November 15, 2016: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/28302143/altered-aortic-3d-hemodynamics-and-geometry-in-pediatric-marfan-syndrome-patients
#10
Roel L F van der Palen, Alex J Barker, Emilie Bollache, Julio Garcia, Michael J Rose, Pim van Ooij, Luciana T Young, Arno A W Roest, Michael Markl, Joshua D Robinson, Cynthia K Rigsby
BACKGROUND: Blood flow dynamics make it possible to better understand the development of aortopathy and cardiovascular events in patients with Marfan syndrome (MFS). Aortic 3D blood flow characteristics were investigated in relation to aortic geometry in children and adolescents with MFS. METHODS: Twenty-five MFS patients (age 15.6 ± 4.0 years; 11 females) and 21 healthy controls (age 16.0 ± 2.6 years; 12 females) underwent magnetic resonance angiography and 4D flow CMR for assessment of thoracic aortic size and 3D blood flow velocities...
March 17, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28298661/deep-hypothermic-circulatory-arrest-vs-antegrade-cerebral-perfusion-in-cerebral-protection-during-the-surgical-treatment-of-chronic-dissection-of-the-ascending-and-arch-aorta
#11
Oksana Vasilyevna Kamenskaya, Asya Stanislavovna Klinkova, Alexander Mikhailovich Chernyavsky, Vladimir Vladimirovich Lomivorotov, Ivan Olegovich Meshkov, Alexander Mikhailovich Karaskov
Circulatory arrest during aortic surgery presents a risk of neurological complications. The present study aimed to investigate the effectiveness of deep hypothermic circulatory arrest (DHCA) vs. antegrade cerebral perfusion (ACP) in cerebral protection during the surgical treatment of chronic dissection of the ascending and arch aorta and to assess the quality-of-life (QoL) in the long-term postoperative period with respect to the used cerebral protection method. In a prospective, randomized study, 58 patients with chronic type I aortic dissection who underwent ascending aorta and aortic arch replacement surgery were included...
March 2017: Journal of Extra-corporeal Technology
https://www.readbyqxmd.com/read/28296814/pedicle-screw-safety-how-much-anterior-breach-is-safe-a-cadaveric-and-ct-based-study
#12
Vishal Sarwahi, Monica Payares, Rachel Gecelter, Stephen Wendolowski, Kathleen Maguire, Dan Wang, Beverly Thornhill, Terry Amaral
STUDY DESIGN: Clinical retrospective chart review and basic science study OBJECTIVES.: To determine the safety limits of an anterior/anterorolateral misplaced pedicle screw on CT scan in spinal deformity. SUMMARY OF BACKGROUND DATA: While the limits of medial breaches (<4 mm) are known, the safe limits for anterior/anterolateral breaches in spine deformity are not yet defined. METHODS: This study had two parts. In part I, post-operative CT scans of 165 patients operated on for spine deformity were reviewed for screw misplacement (2800 screws)...
March 14, 2017: Spine
https://www.readbyqxmd.com/read/28294669/-visceral-complications-of-the-aortic-dissections-indications-and-technique-of-the-thoracoabdominal-refenestration
#13
Csaba Dzsinich, Jenő Szolnoky, Gábor Vallus, Gábor Darabos, Gabriella Nyiri, Dániel Teknős
Aortic dissection is a life threatening cardiovascular catastrophy. Its incidence estimated to 5-6 cases per 100,000 patients/year. The intimal tear happens at the ascending aorta in Type A, meanwhile at the aortic isthmus in Type B, but entry point may develop anywhere alongside the entire aorta. All types may affect a short aortic segment resulting in a localized false aneurysm, others separate the intimal layer at longer extension down to the visceral segment and far beyond to the femoral arteries. Dissection of orifices of side branches may lead to cerebral, upper extremity, spinal, visceral, renal and lower extremity malperfusion...
March 2017: Magyar Sebészet
https://www.readbyqxmd.com/read/28290181/acute-type-a-aortic-dissection-beyond-the-diameter
#14
Calogera Pisano, Carmela Rita Balistreri, Oreste Fabio Triolo, Vincenzo Argano, Giovanni Ruvolo
Aortic dissection is a life-threatening condition in which early diagnosis, treatment and close follow up are critical for survival. Between 60% and 70% of patients with acute aortic dissection are affected at the ascending aorta, classified as Stanford type A (TAD). Preventive surgery of the aorta in asymptomatic patients on the basis of aortic size alone remains controversial among patient populations without known risk factors for aortic dissection. In fact, many dissection patients do not appear to have markedly dilated aortas at the time of presentation...
November 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28288887/transapical-endovascular-repair-of-thoracic-aortic-pathology
#15
Takashi Murakami, Shinsuke Nishimura, Mitsuharu Hosono, Yoshitsugu Nakamura, Etsuji Sohgawa, Yukimasa Sakai, Toshihiko Shibata
BACKGROUND: Alternative access for thoracic endovascular aortic repair (TEVAR) has been explored for patients with unsuitable femoral and iliac access, but few cases of transapical access have been described. We report our experience with transapical access for various aortic pathologies. METHODS: We reviewed six cases undergoing transapical access for endovascular repair of thoracic aortic pathology between December 2013 and August 2015. Five patients had an aortic arch aneurysm and 1 patient presented with Stanford type A subacute aortic dissection...
March 10, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28287579/patch-angioplasty-in-the-rat-aorta-or-inferior-vena-cava
#16
Hualong Bai, Xin Li, Takuya Hashimoto, Haidi Hu, Trenton R Foster, Jesse J Hanisch, Jeans M Santana, Alan Dardik
Pericardial patches are commonly used in vascular surgery to close vessels. To facilitate studies of the neointimal hyperplasia that forms on the patch, we developed a rat model of patch angioplasty that can be used in either a vein or an artery, creating a patch venoplasty or a patch arterioplasty, respectively. Technical aspects of this model are discussed. The infra-renal IVC or aorta are dissected and then clamped proximally and distally. A 3 mm venotomy or arteriotomy is performed in the infrarenal inferior vena cava or aorta of 6 to 8 week-old Wistar rats...
February 27, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28284843/simulation-of-arterial-dissection-by-a-penetrating-external-body-using-cohesive-zone-modelling
#17
Christopher Noble, Olaf van der Sluis, Ruud M J Voncken, Oliver Burke, Steve E Franklin, Roger Lewis, Zeike A Taylor
In this paper, we study the dissection of arterial layers by means of a stiff, planar, penetrating external body (a 'wedge'), and formulate a novel model of the process using cohesive zone formalism. The work is motivated by a need for better understanding of, and numerical tools for simulating catheter-induced dissection, which is a potentially catastrophic complication whose mechanisms remain little understood. As well as the large deformations and rupture of the tissue, models of such a process must accurately capture the interaction between the tissue and the external body driving the dissection...
March 6, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28283881/a-case-of-double-inferior-vena-cava-with-renal-ovarian-and-iliac-vein-variation
#18
Taro Ito, Yayoi Ikeda
We encountered a rare case of an anatomic variant of inferior vena cava (IVC) duplication with renal, ovarian and iliac vein variation in an 81-year-old Japanese female cadaver during a student dissection course of anatomy at Aichi Gakuin University School of Dentistry. The two IVCs ran upwards bilaterally to the abdominal aorta. The left IVC joined with the left renal vein (RV) to form a common trunk that crossed anterior to the aorta and ended at the right IVC. We detected a vein [interiliac vein (IiV)] connecting the two IVCs at the level of the aortic bifurcation...
March 10, 2017: Anatomical Science International
https://www.readbyqxmd.com/read/28281724/common-and-separate-origins-of-the-left-and-right-inferior-phrenic-artery-with-a-review-of-the-literature
#19
Hayato Terayama, Shuang-Qin Yi, Osamu Tanaka, Teruhisa Kanazawa, Kaori Suyama, Noriyuki Kosemura, Shuhei Tetsu, Hajime Yamazaki, Reinii Sakamoto, Satoshi Kawakami, Toshiyasu Suzuki, Kou Sakabe
In a 94-year-old male cadaver, upon which routine dissection was being conducted, a rare variation was found in the gastrophrenic trunk (GPT), the common trunk of the left gastric artery (LGA), right inferior phrenic artery (RIPA), and left inferior phrenic artery (LIPA); the GPT arises from the abdominal aorta. A hepatosplenic trunk accompanied the variation. In this variation, the RIPA first branched from the GPT and then to the LIPA and LGA. Variations in the common trunk of the LIPA and RIPA in the GPT are common, but to our knowledge, a variation (separate inferior phrenic artery in the GPT) similar to our findings has not been previously reported...
March 10, 2017: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/28280627/minimally-invasive-ivor-lewis-esophagectomy-for-esophageal-cancer-with-right-aortic-arch
#20
Jeremy Linson, Michael Latzko, Bestoun Ahmed, Ziad Awad
Right aortic arch (RAA) is a rare congenital vascular abnormality in which the aorta descends in the right thorax and encircles the esophagus. Historically, esophagectomy for patients for RAA is done through a left thoracotomy as exposure and mobilization of the esophagus is difficult through a right thoracotomy. A 73-year-old male was found to have an esophageal adenocarcinoma. Endoscopic ultrasound showed a T3N0 lesion in the lower third of the esophagus. PET CT demonstrated a circumferential lesion without evidence of distant disease or involved lymph nodes and a RAA which was not associated with congenital heart disease or symptoms...
February 2017: Journal of Gastrointestinal Oncology
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