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abdominal aortic dissection

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https://www.readbyqxmd.com/read/29904131/quantitative-study-of-abdominal-blood-flow-patterns-in-patients-with-aortic-dissection-by-4-dimensional-flow-mri
#1
Dongting Liu, Zhanming Fan, Yu Li, Nan Zhang, Zhonghua Sun, Jing An, Aurélien F Stalder, Andreas Greiser, Jiayi Liu
The purpose of this study is to evaluate the hemodynamic characteristics of the true lumen (TL) and the false lumen (FL) in 16 patients with aortic dissection (AD) using 4D flow magnetic resonance imaging (MRI) and thoracic and abdominal computed tomography (CT) angiography. The quantitative parameters that were measured in the TL and FL included velocity and flow. The mean area and regurgitant fraction of the TL were significantly lesser at all four levels (p < 0.05); the average through-plane velocity, peak velocity magnitude, average net flow, peak flow, and net forward volume in the TL were considerably higher (p < 0...
June 14, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29898139/effect-of-ischemic-postconditioning-and-atorvastatin-in-the-prevention-of-remote-lung-reperfusion-injury
#2
Carlos Henrique Marques Dos Santos, Doroty Mesquita Dourado, Baldomero Antonio Kato da Silva, Henrique Budib Dorsa Pontes, Euler de Azevedo Neto, Giovanna Serra da Cruz Vendas, Ian de Oliveira Chaves, João Victor Cunha Miranda, João Victor Durães Gomes Oliva, Letícia do Espírito Santo Dias, Murillo Henrique Martins de Almeida, Trícia Luna Sampaio
OBJECTIVE: The aim of the present study was to evaluate the ability of ischemic postconditioning, atorvastatin and both associated to prevent or minimize reperfusion injury in the lung of rats subjected to ischemia and reperfusion by abdominal aortic clamping. METHODS: We used 41 Wistar norvegic rats, which were distributed into 5 groups: ischemia and reperfusion (I/R), ischemic postcondictioning (IPC), postconditioning + atorvastatin (IPC+A), atorvastatin (A) and SHAM...
March 2018: Brazilian Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/29896040/endovascular-treatment-of-various-aortic-pathologies-review-of-the-latest-data-and-technologies
#3
REVIEW
Koji Maeda, Takao Ohki, Yuji Kanaoka
The technologies and innovations applicable to endovascular treatment for complex aortic pathologies have progressed rapidly over the last two decades. Although the initial outcomes of an endovascular aortic repair have been excellent, as long-term data became available, complications including endoleaks, endograft migration, and endograft infection have become apparent and are of concern. Previously, the indication for endovascular therapy was restricted to descending thoracic aortic aneurysms and abdominal aortic aneurysms...
June 2018: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/29891434/mid-term-outcomes-of-stent-assisted-balloon-induced-intimal-disruption-and-relamination-in-aortic-dissection-repair-stabilise-in-acute-type-b-aortic-dissection
#4
Elsa M Faure, Salma El Batti, Marwan Abou Rjeili, Pierre Julia, Jean-Marc Alsac
OBJECTIVES: This article reports mid-term results of 41 patients treated by the stent assisted balloon induced intimal disruption and relamination (STABILISE) technique for acute type B aortic dissection. METHODS: Between November 2011 and November 2017, 41 patients (10 male; median age 50 years) underwent proximal descending aortic stent grafting plus stent assisted balloon induced intimal disruption of the thoraco-abdominal aorta for acute type B aortic dissection...
June 8, 2018: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/29880489/systemic-upregulation-of-il-10-interleukin-10-using-a-nonimmunogenic-vector-reduces-growth-and-rate-of-dissecting-abdominal-aortic-aneurysm
#5
Matti Adam, Nigel Kooreman, Ann Jagger, Markus U Wagenhaeuser, Dennis Mehrkens, Yongming Wang, Yosuke Kayama, Kensuke Toyama, Uwe Raaz, Isabel N Schellinger, Lars Maegdefessel, Joshua M Spin, Jaap F Hamming, Paul H A Quax, Stephan Baldus, Joseph C Wu, Philip S Tsao
OBJECTIVE: Recruitment of immunologic competent cells to the vessel wall is a crucial step in formation of abdominal aortic aneurysms (AAA). Innate immunity effectors (eg, macrophages), as well as mediators of adaptive immunity (eg, T cells), orchestrate a local vascular inflammatory response. IL-10 (interleukin-10) is an immune-regulatory cytokine with a crucial role in suppression of inflammatory processes. We hypothesized that an increase in systemic IL-10-levels would mitigate AAA progression...
June 7, 2018: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/29877737/clevidipine-as-a-therapeutic-and-cost-effective-alternative-to-sodium-nitroprusside-in-patients-with-acute-aortic-syndromes
#6
Carlos L Alviar, Alejandra Gutierrez, Leslie Cho, Amar Krishnaswamy, Amr Saleh, Michael A Lincoff, Eric Roselli, Michael Militello, Venu Menon
BACKGROUND: Sodium nitroprusside is the preferred agent for the treatment of high blood pressure during acute aortic syndrome if blood pressure remains elevated after heart rate control with beta-blockers. The increasing cost of sodium nitroprusside in the USA led us to assess the efficacy and safety of intravenous clevidipine, a calcium channel blocker with quick onset of action, short half-life and significantly lower costs than sodium nitroprusside, in patients presenting with acute aortic syndrome...
June 1, 2018: European Heart Journal. Acute Cardiovascular Care
https://www.readbyqxmd.com/read/29850426/complications-of-endovascular-aneurysm-repair-of-the-thoracic-and-abdominal-aorta-evaluation-and-management
#7
REVIEW
Dania Daye, T Gregory Walker
In recent decades, endovascular aneurysm repair or endovascular aortic repair (EVAR) has become an acceptable alternative to open surgery for the treatment of thoracic and abdominal aortic aneurysms and other aortic pathologies such as the acute aortic syndromes (e.g., penetrating aortic ulcer, intramural hematoma, dissection). Available data suggest that endovascular repair is associated with lower perioperative 30-day all-cause mortality as well as a significant reduction in perioperative morbidity when compared to open surgery...
April 2018: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/29850424/evolving-clinical-applications-of-contrast-enhanced-ultrasound-ceus-in-the-abdominal-aorta
#8
REVIEW
Vasileios Rafailidis, Sasan Partovi, Alexander Dikkes, Dean A Nakamoto, Nami Azar, Daniel Staub
Ultrasound (US) represents the initial modality in the workup of abdominal aortic pathology based on the plethora of advantages including widespread availability, low cost, safety profile and repeatability. However, US has inherent limitations including limited spatial information of pathologic processes to neighboring structures, lower sensitivity to slow blood flow and aortic luminal irregularities. For evaluation of aortic pathology angiography has long been considered the gold standard. Non-invasive cross-sectional imaging techniques like computed tomography angiography (CTA) and magnetic resonance angiography (MRA) have gradually replaced interventional angiography for the evaluation of aorta, currently being regarded as the diagnostic imaging modalities of choice for diagnosis of virtually every aortic disease...
April 2018: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/29849356/dead-legs-a-case-of-bilateral-leg-paralysis
#9
Faith Quenzer, Joel Stillings, Jacqueline Le
Aortoiliac occlusive disease (AOD) is a rare presentation of thrombosis of the abdominal aorta. Also known as Leriche syndrome, its classic description entails claudication of the buttocks, thighs, and calves, absent femoral pulses, and impotence. AOD risk factors include smoking, hypertension, hyperlipidemia, diabetes, chronic renal insufficiency, and hypercoagulopathy. Ischemic complications of gastrointestinal malperfusion, renal infarction, and paralysis secondary to spinal cord ischemia are also noted...
November 2017: Clinical practice and cases in emergency medicine
https://www.readbyqxmd.com/read/29848500/in-vivo-molecular-characterization-of-abdominal-aortic-aneurysms-using-fibrin-specific-magnetic-resonance-imaging
#10
René M Botnar, Julia Brangsch, Carolin Reimann, Christian H P Janssen, Reza Razavi, Bernd Hamm, Marcus R Makowski
BACKGROUND: The incidence of abdominal aortic aneurysms (AAAs) will significantly increase during the next decade. Novel biomarkers, besides diameter, are needed for a better characterization of aneurysms and the estimation of the risk of rupture. Fibrin is a key protein in the formation of focal hematoma associated with the dissection of the aortic wall and the development of larger thrombi during the progression of AAAs. This study evaluated the potential of a fibrin-specific magnetic resonance (MR) probe for the in vivo characterization of the different stages of AAAs...
May 30, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29802041/anatomic-and-clinical-characterization-of-the-narrow-distal-aorta-and-implications-after-endovascular-aneurysm-repair
#11
Charles Briggs, Trissa Babrowski, Christopher Skelly, Ross Milner
OBJECTIVE: The purpose of this analysis was to compare 1-year clinical outcomes after endovascular repair of abdominal aortic aneurysms with the EXCLUDER device in patients with standard and narrow aortic bifurcations (AOBs). METHODS: Data were prospectively collected from a 1055-participant subset of the multicenter Global Registry for Endovascular Aortic Treatment (GREAT) treated for abdominal aortic aneurysm repair between August 2010 and September 2015. There were 117 patients with a narrow AOB (NB; defined as <16 mm) and 938 patients with a standard bifurcation (SB)...
May 22, 2018: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29796637/comparisons-of-aortic-remodelling-and-outcomes-after-endovascular-repair-of-acute-and-chronic-complicated-type-b-aortic-dissections
#12
Heng-Wen Chou, Chih-Yang Chan, Chin-Hao Chang, Ching-Feng Lin, Yih-Sharng Chen, Shoei-Shen Wang, I-Hui Wu
OBJECTIVES: Patients with acute (ACTBAD) or chronic complicated Type B aortic dissection (CCTBAD) undergoing thoracic endovascular aortic repair (TEVAR) remain at high risk for late aorta-related events. Few data exist on the comparison of aortic remodelling and outcomes after TEVAR between both groups. METHODS: Forty-nine patients of TEVAR for CCTBAD (n = 26) and ACTBAD (n = 23) were retrospectively reviewed at our centre. RESULTS: The overall 30-day mortality was 4%...
May 22, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29780894/multiple-re-entry-closures-after-tevar-for-ruptured-chronic-post-dissection-thoraco-abdominal-aortic-aneurysm
#13
R Kinoshita, F Ganaha, J Ito, N Ohyama, N Abe, T Yamazato, H Munakata, K Mabuni, T Kugai
Introduction: Although thoracic endovascular aortic repair (TEVAR) has become a promising treatment for complicated acute type B dissection, its role in treating chronic post-dissection thoraco-abdominal aortic aneurysm (TAA) is still limited owing to persistent retrograde flow into the false lumen (FL) through abdominal or iliac re-entry tears. Report: A case of chronic post-dissection TAA treatment, in which a dilated descending FL ruptured into the left thorax, is described...
2018: EJVES Short Reports
https://www.readbyqxmd.com/read/29770795/cytokines-as-biomarkers-of-inflammatory-response-after-open-versus-endovascular-repair-of-abdominal-aortic-aneurysms-a-systematic-review
#14
REVIEW
Diamantis I Tsilimigras, Fragiska Sigala, Georgios Karaolanis, Ioannis Ntanasis-Stathopoulos, Eleftherios Spartalis, Michael Spartalis, Nikolaos Patelis, Alexandros Papalampros, Chandler Long, Demetrios Moris
The repair of an abdominal aortic aneurysm (AAA) is a high-risk surgical procedure related to hormonal and metabolic stress-related response with an ensuing activation of the inflammatory cascade. In contrast to open repair (OR), endovascular aortic aneurysm repair (EVAR) seems to decrease the postoperative stress by offering less extensive incisions, dissection, and tissue manipulation. However, these beneficial effects may be offset by the release of cytokines and arachidonic acid metabolites during intra-luminal manipulation of the thrombus using catheters in endovascular repair, resulting in systemic inflammatory response (SIR), which is clinically called post-implantation syndrome...
May 17, 2018: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29765221/surgical-treatment-of-an-esophageal-bronchogenic-cyst-with-massive-upper-digestive-tract-hematoma-without-esophagectomy-a-case-report-and-the-review-of-the-literature
#15
Yuanjun Cheng, Donglai Chen, Li Shi, Wentao Yang, Yonghua Sang, Shanzhou Duan, Yongbing Chen
Esophageal bronchogenic cysts are extremely rare. Here we report a case of massive upper digestive tract hematoma and bronchogenic cyst mimicking aortic dissection that was safely removed without esophagectomy. A 30-year-old man was referred to our hospital for the treatment of a mediastinal cystic tumor located in the submucosa of the distal esophagus. His chief complaints were dysphagia > 1 week and severe persistent upper abdominal pain mimicking aortic dissection with constant vomiting for 1 day after gastroscopy examination...
2018: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/29727351/comparison-of-different-surgical-approaches-for-stage-ib1-cervical-cancer-patients-a-multi-institution-study-and-a-review-of-the-literature
#16
Giacomo Corrado, Enrico Vizza, Francesco Legge, Luigi Pedone Anchora, Isabella Sperduti, Anna Fagotti, Emanuela Mancini, Valerio Gallotta, Ashanti Zampa, Benito Chiofalo, Giovanni Scambia
OBJECTIVE: The aim of this retrospective study was to assess the surgical and oncological outcome of 3 different surgical approaches (laparotomy, laparoscopy, and robotic surgery) in the treatment of early-stage cervical cancer International Federation of Gynecology and Obstetrics (FIGO) stage IB1. METHODS: All patients with a histologically confirmed diagnosis of early-stage cervical cancer, FIGO stage IB1, who underwent abdominal radical hysterectomy (ARH), laparoscopic radical hysterectomy, or robotic radical hysterectomy with or without pelvic and aortic lymphadenectomy were included in the study...
April 30, 2018: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/29725810/custom-made-endograft-for-endovascular-repair-of-thoraco-abdominal-aneurysm-and-type-b-dissection-single-centre-experience
#17
Pierleone Lucatelli, Marco Cini, Antonio Benvenuti, Luca Saba, Giulio Tommasino, Giulia Guaccio, Graham Munneke, Eugenio Neri, Carmelo Ricci
AIMS: To report a series of patients treated with the Jotec custom-made endograft for thoraco-abdominal aneurysms and dissections and identify predictive factors for re-intervention. METHODS: We retrospectively analysed 49 patients unsuitable for surgery, treated between 2011 and 2017 (71.3 ± 9.5 years; 15 females). Indications included Crawford type 4 aneurysm in 25 patients, type 3 in 13, type 2 in 4, type 1 in 2 and chronic aneurysmal dilatation of the false lumen following dissection in 5 cases...
May 3, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/29725666/hemodynamic-evaluation-using-four-dimensional-flow-magnetic-resonance-imaging-for-a-patient-with-multichanneled-aortic-dissection
#18
Baolei Guo, Selene Pirola, Daqiao Guo, Zhihui Dong, Xiao Yun Xu, Weiguo Fu
The hemodynamic function of multichanneled aortic dissection (MCAD) requires close monitoring and effective management to avoid potentially catastrophic sequelae. This report describes a 47-year-old man who underwent endovascular repair based on findings from four-dimensional (4D) flow magnetic resonance imaging of an MCAD. The acquired 4D flow data revealed complex, bidirectional flow patterns in the false lumens and accelerated blood flow in the compressed true lumen. The collapsed abdominal true lumen expanded unsatisfactorily after primary tear repair, which required further remodeling with bare stents...
March 2018: Journal of Vascular Surgery Cases and Innovative Techniques
https://www.readbyqxmd.com/read/29709360/the-fate-of-the-abdominal-aorta-after-endovascular-treatment-in-chronic-debakey-iiib-aneurysm
#19
Tae-Hoon Kim, Suk-Won Song, Kwang-Hun Lee, Min-Young Baek, Kyung-Jong Yoo, Hye Sun Lee
OBJECTIVES: We sought to identify the risk factors for abdominal aortic remodeling after thoracic endovascular aortic repair in patients with chronic DeBakey IIIb aneurysm. METHODS: From 2012 to 2016, 70 patients underwent thoracic endovascular aortic repair for chronic DeBakey IIIb aneurysm. The abdominal aortic diameter was measured at 3 different levels (celiac trunk, renal artery, and infrarenal aorta). Abdominal aorta status was classified as expansion or stable...
April 4, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29705559/open-thoracic-and-thoraco-abdominal-aortic-repair-after-prior-endovascular-therapy
#20
Paula R Keschenau, Shirley Ketting, Barend Mees, Mohammad E Barbati, Jochen Grommes, Alexander Gombert, Geert Willem H Schurink, Drosos Kotelis, Michael J Jacobs
OBJECTIVE: The aim was to present current results of open thoracic and thoraco-abdominal aortic repair as secondary procedure after prior endovascular therapy. METHODS: This was a retrospective cross border single centre study. From 2006 to July 2017 45 open thoracic aortic (TAA) or thoraco-abdominal aortic aneurysm (TAAA) operations were performed on 44 patients (median age 58 [15-80] years) as secondary surgery after previous endovascular therapy comprising TEVAR (n = 38; 86%), EVAR (n = 3; 7%), fenestrated EVAR (n = 1; 2%) and TEVAR plus EVAR (n = 1; 2%)...
April 25, 2018: European Journal of Vascular and Endovascular Surgery
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