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https://www.readbyqxmd.com/read/29223943/-pulmonary-thromboembolism-and-aortic-dissection-an-infrequent-presentation
#1
Cecilia A Zevallos, Daniela Martínez, Mercedes Córdoba, Andrés Tomé Guzmán, Jorge Ahualli, Héctor Luciardi
No abstract text is available yet for this article.
2017: Medicina
https://www.readbyqxmd.com/read/29221734/aortic-annulus-does-not-dilate-over-time-after-aortic-root-remodeling-with-or-without-annuloplasty
#2
Takashi Kunihara, Satoshi Arimura, Fumihiro Sata, Christian Giebels, Ulrich Schneider, Hans-Joachim Schäfers
OBJECTIVE: The lack of annular stabilization is the drawback of aortic root remodeling, and recently the addition of annuloplasty has been proposed. Limited data, however, exist on late annular size after remodeling. We studied annular size over time. METHODS: In 241 patients (53 ± 16 years) annular size was determined preoperatively (T0), before discharge (T1), and at least 2 years after remodeling (T2, 54 ± 27 months) with (n = 52) or without external suture annuloplasty...
December 5, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29221290/should-sinus-of-valsalva-be-preserved-in-patients-with-bicuspid-aortic-valve-and-aortic-dilation
#3
Yulin Wang, Yi Lin, Kanhua Yin, Kai Zhu, Zhaohua Yang, Yongxin Sun, Hao Lai, Chunsheng Wang
Background: It is recommended that dilated ascending aortas (≥45 mm) should be replaced at the time of aortic valve replacement (AVR) for bicuspid aortic valve (BAV). The risk of progressive sinus of Valsalva dilatation after AVR and ascending aorta replacement is less clear. Methods: We identified 156 patients (age 56.2±10.8 years, 46 females) who underwent AVR and ascending aorta replacement in our institution from 2010-2014, 124 (79%) of whom had BAV. Aortic root and ascending aorta sizes were determined from preoperative and the most recent echocardiograms...
September 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29221269/cluster-analysis-of-acute-ascending-aortic-dissection-provides-novel-insight-into-mechanisms-of-distal-progression
#4
Jennifer L Philip, Nilto C De Oliveira, Shahab A Akhter, Brooks L Rademacher, Christopher B Goodavish, Paul D DiMusto, Paul C Tang
Background: Whether primary tear size impacts extent of type A dissection is unclear. Using statistical groupings based on dissection morphology, we examined its relationship to primary tear area. Methods: We retrospectively reviewed 108 patients who underwent acute ascending dissection repair from 2000-2016. Dissection morphology was characterized using 3-dimensional (3D) reconstructions of computed tomography (CT) scan images. Two-step cluster analysis was performed to group the dissections by examining the true lumen area as a fraction of the total aortic area at various levels...
September 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29218798/high-risk-clinical-features-for-acute-aortic-dissection-a-case-control-study
#5
Robert Ohle, Justin Um, Omar Anjum, Helena Bleeker, Lindy Luo, George Wells, Jeffrey J Perry
BACKGROUND: Acute aortic dissection (AAD) is a rare condition with a high mortality that is often missed. The objective of our study was to assess the diagnostic accuracy of clinical and laboratory findings for AAD, in confirmed cases of AAD and a low risk control group. METHODS: Historical matched case-control study: participants were adults >18 years old presenting to two tertiary care emergency departments (ED) or one regional cardiac referral center. CASES: new ED or in-hospital diagnosis of non-traumatic AAD confirmed by computed tomography or echocardiography...
December 8, 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/29218111/the-diagnostic-value-of-microrna-4787-5p-and-microrna-4306-in-patients-with-acute-aortic-dissection
#6
Lei Wang, Shijie Zhang, Zhigao Xu, Jingjing Zhang, Li Li, Guoqiang Zhao
Acute aortic dissection (AAD) is a life-threatening cardiovascular disease with the high morbidity and mortality. Imaging modalities are the gold standard for the diagnosis of AAD; however, they are not always available in emergency department. Biomarker-assisted diagnosis is important for the early treatment of AAD. The aim of the present study was to identify potential microRNA (miRNA) biomarkers for AAD. Differentially expressed plasma miRNAs between AAD patients and age-matched healthy volunteers were analyzed by miRNA microarray...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/29217443/analysis-of-aortic-growth-rates-in-uncomplicated-type-b-dissection
#7
Maen Aboul Hosn, Paolo Goffredo, Jeffrey Zavala, William J Sharp, Neelima Katragunta, Timothy Kresowik, Rachael Nicholson, Luigi Pascarella
OBJECTIVES: Uncomplicated type B dissections have historically been treated medically with hemodynamic control. Early progression of the disease and late aneurysmal dilation have been considered as indications for intervention. The aim of this study is to analyze growth rate patterns of type B dissections based on Computed Tomography measurements over time. METHODS: We conducted a retrospective review of patients with acute type B dissection from 2008 to 2014 who had at least two follow up CT scans...
December 4, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29217246/acute-type-a-aortic-dissection-and-successful-surgical-repair-in-a-woman-at-21-weeks-gestational-pregnancy-with-maternal-and-fetal-survival-a-case-report
#8
Adam Barrus, Sam Afshar, Sara Sani, Troy G LaBounty, Cesar Padilla, Michaela K Farber, Andrew G Rudikoff, Antonio Hernandez Conte
No abstract text is available yet for this article.
September 14, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29217087/evolution-of-simplified-frozen-elephant-trunk-repair-for-acute-debakey-type-i-dissection-midterm-outcomes
#9
Eric E Roselli, Jay J Idrees, Faisal G Bakaeen, Michael Z Tong, Edward G Soltesz, Stephanie Mick, Douglas R Johnston, Mathew J Eagleton, Venu Menon, Lars G Svensson
BACKGROUND: A modified technique for frozen elephant trunk (FET) repair of acute DeBakey type I dissection has evolved. Procedural modifications are described and midterm outcomes evaluated. METHODS: From 2009 to 2016, 72 patients with DeBakey type I dissection underwent emergency simplified FET. Mean age was 59 ± 15 years. Presentation included malperfusion (n = 22, 31%), rupture (n = 12, 16%), and aortic insufficiency (n = 42, 58%). Concomitant procedures included valve replacement (n = 9), root replacement (n = 11; valve sparing n = 6), cusp repair (n = 11), and valve resuspension (n = 21)...
December 4, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29216679/the-role-of-extracorporeal-membrane-oxygenator-therapy-in-the-setting-of-type-a-aortic-dissection
#10
Ibrahim Sultan, Andreas Habertheuer, Tyler Wallen, Mary Siki, Wilson Szeto, Joseph E Bavaria, Matthew Williams, Prashanth Vallabhajosyula
BACKGROUND AND AIM: Patients presenting with type A aortic dissection (TAAD) present with a wide clinical spectrum ranging from hemodynamic stability to multiorgan malperfusion with cardiovascular collapse. Extracorporeal membrane oxygenator (ECMO) therapy is increasingly being utilized as salvage therapy in patients with acute cardiopulmonary failure and for post-cardiotomy shock. We sought to determine the utility of ECMO implementation post-TAAD repair. METHODS: The Pennsylvania Health Care Cost Containment Council (PHC4) database, maintained by an independently functioning state agency, was retrospectively reviewed from 2004 to 2014...
December 7, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/29211214/hybrid-approach-of-aortic-diseases-zone-1-delivery-and-volumetric-analysis-on-the-descending-aorta
#11
José Augusto Duncan, Ricardo Ribeiro Dias, Fabrício José Dinato, Fábio Fernandes, Félix José Álvares Ramirez, Charles Mady, Fabio Biscegli Jatene
INTRODUCTION: Conventional techniques of surgical correction of arch and descending aortic diseases remains as high-risk procedures. Endovascular treatments of abdominal and descending thoracic aorta have lower surgical risk. Evolution of both techniques - open debranching of the arch and endovascular approach of the descending aorta - may extend a less invasive endovascular treatment for a more extensive disease with necessity of proximal landing zone in the arch. OBJECTIVE: To evaluate descending thoracic aortic remodeling by means of volumetric analysis after hybrid approach of aortic arch debranching and stenting the descending aorta...
September 2017: Brazilian Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/29210860/aortic-dilatation-in-marfan-syndrome-role-of-arterial-stiffness-and-fibrillin-1-variants
#12
Paolo Salvi, Andrea Grillo, Susan Marelli, Lan Gao, Lucia Salvi, Maurizio Viecca, Anna Maria Di Blasio, Renzo Carretta, Alessandro Pini, Gianfranco Parati
OBJECTIVE: Marfan syndrome (MFS) is an autosomal dominant genetic disorder characterized by aortic root dilation and dissection and an abnormal fibrillin-1 synthesis. In this observational study, we evaluated aortic stiffness in MFS and its association with ascending aorta diameters and fibrillin-1 genotype. METHODS: A total of 116 Marfan adult patients without history of cardiovascular surgery, and 144 age, sex, blood pressure and heart rate matched controls were enrolled...
January 2018: Journal of Hypertension
https://www.readbyqxmd.com/read/29209372/heat-shock-protein-27-plays-a-protective-role-in-thoracic-aortic-dissection-by-promoting-cell-proliferation-and-inhibiting-apoptosis
#13
Sili Zou, Mingfang Liao, Junlin Yang, Tong Huang, Mark Green, Jianjin Wu, Lefeng Qu
Background: Thoracic aortic dissection (TAD) is one of the most severe aortic diseases. The study aimed to explore the potential role of heat shock protein 27 (HSP27) in the pathogenesis of TAD using an in vitro model of oxidative stress in vascular smooth muscle cells (VSMCs). Methods: HSP27 was analyzed in aortic surgical specimens from 12 patients with TAD and 8 healthy controls. A lentiviral vector was used to overexpress HSP27 in rat aortic VSMCs. Cell proliferation and apoptosis were measured under oxidative stress induced by H2O2...
2017: Cellular & Molecular Biology Letters
https://www.readbyqxmd.com/read/29207672/thoracic-endovascular-aortic-repair-for-type-b-aortic-dissection-after-renal-transplantation
#14
Chang Shu, QingGen Xiong, Jian Qiu, MingYao Luo, Kun Fang
Thoracic endovascular repair (TEVAR) is an effective treatment for type B aortic dissection (TBAD). Here, we evaluated the early-midterm effectiveness and safety of TEVAR for treating TBAD patients after renal transplantation. Six patients with TBAD treated with TEVAR after renal transplantation were recruited between February 2012 and December 2016. They were then followed up with clinical examinations and computed tomography angiography (CTA). TEVAR was successfully performed in all patients (100%), and the primary tear sites were well covered by stents with or without coverage of the left subclavian artery...
October 31, 2017: Oncotarget
https://www.readbyqxmd.com/read/29205465/gross-anatomy-of-the-heart-of-the-alpaca-vicugna-pacos-linnaeus-1758
#15
W Pérez, V Méndez, N Vazquez, M Navarrete, H E König
The available information about anatomical characteristics of the cardiovascular system of the alpaca (Vicugna pacos, Linnaeus 1758) is scarce. The general objective of this work was to describe its heart anatomy. We dissected six adult animals and five neonates. The heart of the alpaca was located in the middle mediastinum, with a craniocaudal extension from the third to the sixth rib. No ligament that connected the fibrous pericardium to the sternum or to the diaphragm was detected. In the right atrium, there was a developed crista terminalis and small pectinate muscles...
December 4, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29204794/thoracic-aortic-aneurysm-unlocking-the-silent-killer-secrets
#16
Ayman A Saeyeldin, Camilo A Velasquez, Syed Usman B Mahmood, Adam J Brownstein, Mohammad A Zafar, Bulat A Ziganshin, John A Elefteriades
Thoracic aortic aneurysm (TAA) is an increasingly recognized condition that is often diagnosed incidentally. This review discusses ten of the most relevant epidemiological and clinical secrets of this disease; (1) the difference in pathogenesis between ascending and descending TAAs. TAAs at these two sites act as different diseases, which is related to the different embryologic origins of the ascending and descending aorta. (2) The familial pattern and genetics of thoracic aneurysms. Syndromic TAAs only explain 5% of the pattern of inheritance...
December 4, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29203969/cardiovascular-disease-in-ageing-an-overview-on-thoracic-aortic-aneurysm-as-an-emerging-inflammatory-disease
#17
REVIEW
Calogera Pisano, Carmela Rita Balistreri, Alessandro Ricasoli, Giovanni Ruvolo
Medial degeneration associated with thoracic aortic aneurysm and acute aortic dissection was originally described by Erdheim as a noninflammatory lesion related to the loss of smooth muscle cells and elastic fibre fragmentation in the media. Recent evidences propose the strong role of a chronic immune/inflammatory process in aneurysm evocation and progression. The coexistence of inflammatory cells with markers of apoptotic vascular cell death in the media of ascending aorta with aneurysms and type A dissections raises the possibility that activated T cells and macrophages may contribute to the elimination of smooth muscle cells and degradation of the matrix...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/29202781/acta2-mutation-and-postpartum-hemorrhage-a-case-report
#18
Kylie Cooper, Stephen Brown
BACKGROUND: ACTA2 encodes smooth muscle specific α-actin, a critical component or the contractile complex of vascular smooth muscle. Mutations in ACTA2 are the most common genetic cause of thoracic aortic aneurysm, and are also the cause of other disorders, including Moyamoya disease, coronary artery disease and stroke as well as Multisystemic Smooth Muscle Dysfunction Syndrome. We note that ACTA2 is also expressed in uterine smooth muscle, and this raises the possibility that women harboring ACTA2 mutations might exhibit uterine smooth muscle dysfunction...
December 4, 2017: BMC Medical Genetics
https://www.readbyqxmd.com/read/29201858/thoracolumbar-paraspinal-myonecrosis-after-aortic-dissection
#19
Sung Min Kim, Ki Chang Lee, Sung Hwa Paeng, Se Yeong Pyo, Yong Tae Jung
Thoracolumbar paraspinal myonecrosis can be developed with various etiologies. It can induce compartment syndrome of spinal muscles and cause elevated pressure on back muscles, resulting in severe back pain. Thoracolumbar paraspinal myonecrosis is a very rare disease. There are only a few studies about paraspinal myonecrosis. Here we report a case of a spontaneous thoracolumbar paraspinal myonecrosis in a patient who had asymptomatic abdominal aortic dissection. Through this case, etiologies, clinical features, radiologic findings, and treatment options for thoracolumbar paraspinal myonecrosis are discussed...
October 2017: Korean Journal of Neurotrauma
https://www.readbyqxmd.com/read/29198629/aortic-replacement-after-tevar-diameter-correction-with-modified-use-of-the-siena-prosthesis
#20
Arminder Jassar, Maximilian Kreibich, Julia Morlock, Stoyan Kondov, Johannes Scheumann, Fabian A Kari, Bartosz Rylski, Matthias Siepe, Alexander Jonaszik, Cornelius Keyl, Frank Humburger, Friedhelm Beyersdorf, Martin Czerny
BACKGROUND: To report a new technique for diameter correction in patients after thoracic endovascular aortic repair (TEVAR) with large stent-grafts using the Vascutek Siena 4-branch collared prosthesis (Vascutek Terumo, Inchinnan, Scotland, UK) in patients undergoing thoracoabdominal (TA) aortic replacement. METHODS: Within a 24-month period, 39 patients underwent TA replacement at our center. Of these, 6 patients had undergone previous TEVAR with large stent-grafts (42 to 48 mm diameter)...
December 1, 2017: Annals of Thoracic Surgery
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