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Aortic dilatation

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https://www.readbyqxmd.com/read/28633398/a-novel-system-for-the-treatment-of-aortic-annular-dilation-an-ex-vivo-investigation
#1
Pallav Shah, Claudia Romagnoni, Michal Jaworek, Federico Lucherini, Monica Contino, Alan Menkis, Guido Gelpi, Gianfranco B Fiore, Carlo Antona, Riccardo Vismara
OBJECTIVES: The main reason for aortic repair failures is recurrent annular dilatation. The fibrous portion of left ventricular outflow tract dilates. A novel device was designed to tackle this problem. METHODS: The device consists of an internal ring applied at the aortic annulus plus an external flexible band at the level of the aortic root. The internal ring has a semi-rigid portion (40%, placed at ventriculo-arterial junction) and a flexible portion to allow it to conform along the curves of the non-coronary/right coronary leaflet and right coronary/left coronary leaflet commissures...
June 15, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28633253/transforming-growth-factor-beta-2-mutations-in-barlow-s-disease-and-aortic-dilatation
#2
Kushtrim Disha, Solveig Schulz, Thomas Kuntze, Evaldas Girdauskas
We report on a patient operated on for degenerative myxomatous mitral and tricuspid valve disease (Barlow's disease) and aortic root dilatation. A valve repair operation and the postoperative course were uneventful. Multigenerational genetic analyses revealed two different mutations in the transforming growth factor beta-2 gene in the same patient. The two mutations in different exons were inherited from both parents each. None of the parents presented with either valve dysfunction or aortic root dilatation...
July 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28629660/characterization-and-risk-factors-for-aortic-dilatation-in-pediatric-patients-with-bicuspid-aortic-valve
#3
Anna Sabaté-Rotés, Laura Sabidó Sanchez, Ferran Gran Ipiña, Dimpna Albert Brotons, Raúl F Abella, Ferran Rosés Noguer
INTRODUCTION AND OBJECTIVES: Dilatation of the ascending aorta associated with bicuspid aortic valve is a major cause of morbidity and mortality in adults. The main objective was to recognize the aortic involvement in children, its characteristics and risk factors. METHODS: Aortic measures of all pediatric patients with bicuspid aortic valve followed in a tertiary pediatric hospital between 1997 and 2015 were retrospectively taken. Patients with syndromes associated with aortic dilatation were excluded (n=17)...
June 16, 2017: Medicina Clínica
https://www.readbyqxmd.com/read/28625795/-right-side-aortic-arch-with-aberrant-left-subclavian-artery-and-kommerell-s-diverticulum-a-cause-of-vascular-ring
#4
Tania Tamayo-Espinosa, Julio Erdmenger-Orellana, Rosario Becerra-Becerra, Norma Balderrabano-Saucedo, Begoña Segura-Standford
The right-side aortic arch may be associated with aberrant left subclavian artery, in some cases this artery originates from an aneurismal dilatation of the aorta called Kommerell diverticulum. We report 2 cases of vascular ring formed by a right-side aortic arch, anomalous left subclavian artery, Kommerell's diverticulum and left patent ductus arteriosus.
June 15, 2017: Archivos de Cardiología de México
https://www.readbyqxmd.com/read/28623496/association-between-flow-skewness-and-aortic-dilatation-in-patients-with-aortic-stenosis
#5
Hojin Ha, Hyun Jung Koo, June Goo Lee, Guk Bae Kim, Jihoon Kweon, Sang Joon Lee, Joon Won Kang, Tae Hwan Lim, Dae Hee Kim, Jong Min Song, Duk Hyun Kang, Jae Kwan Song, Young Hak Kim, Namkug Kim, Dong Hyun Yang
We investigated association between hemodynamic characteristics and aortic dilatation in patients with severe aortic stenosis (AS). Eighty patients with severe AS (mean age, 67.2 ± 12.5 years) who underwent multi-detector computed tomography and phase-contrast magnetic resonance imaging at the ascending aorta were retrospectively analyzed. Patients with an ascending aorta diameter >4 cm had a significantly higher forward flow rate at systole (28.5 ± 6.0 vs. 36.2 ± 8.6 L min, P < 0...
June 16, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28622359/aerobic-exercise-protects-against-pressure-overload-induced-cardiac-dysfunction-and-hypertrophy-via-%C3%AE-3-ar-nnos-no-activation
#6
Bin Wang, Ming Xu, Wenju Li, Xiaoli Li, Qiangsun Zheng, Xiaolin Niu
Aerobic exercise confers sustainable protection against cardiac hypertrophy and heart failure (HF). Nitric oxide synthase (NOS) and nitric oxide (NO) are known to play an important role in exercise-mediated cardioprotection, but the mechanism of NOS/NO stimulation during exercise remains unclear. The aim of this study is to determine the role of β3-adrenergic receptors (β3-ARs), NOS activation, and NO metabolites (nitrite and nitrosothiols) in the sustained cardioprotective effects of aerobic exercise. An HF model was constructed by transverse aortic constriction (TAC)...
2017: PloS One
https://www.readbyqxmd.com/read/28620320/abnormal-haemodynamic-flow-patterns-in-bicuspid-pulmonary-valve-disease
#7
Malenka M Bissell, Margaret Loudon, Stefan Neubauer, Saul G Myerson
Abnormal flow patterns in the aortas of those with bicuspid aortic valves (BAVs) are increasingly recognized as important in the pathogenesis of aortic dilatation but pulmonary flow patterns in bicuspid pulmonary valves have not been studied. Bicuspid pulmonary valve disease is rare and a small numbers of case reports describe concomitant pulmonary artery dilation similar to the dilation of the ascending aorta, which is often seen in BAVs disease. We examined three cases of bicuspid pulmonary valve disease, 10 healthy volunteers and 10 patients with BAV disease but a tricuspid pulmonary valve...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28616920/-association-of-gh-and-igf-1-burden-with-cardiac-structural-and-functional-changes-in-acromegaly-patients
#8
Shuo Zhang, Yi-Lin Li, Xiao-Peng Guo, Lu Gao, Yong Yao, Ren-Zhi Wang, Bing Xing
OBJECTIVES: To investigate the association of growth hormone (GH) and insulin-like growth factor (IGF-1) burden with the cardiac structural and functional changes in acromegaly patients. METHODS: Ninety-nine acromegaly patients were enrolled in this study. According to the normal range of echocardiographic parameters of Peking Union Medical College Hospital, the patients were divided into parameter normal group and abnormal group. Correlation analyses were conducted between duration of disease, mean GH, mean IGF-1, GH burden, IGF-1 burden and echocardiography data retrospectively...
May 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28616349/sparing-aortic-valve-techniques
#9
Rubén Álvarez-Cabo
Prosthetic valve implantation is the most widely used therapeutic option for aortic regurgitation (AR), but complications associated with prosthetic valves, with an incidence of 3-5% patient/year, and the need for anticoagulation in mechanical valves, force us to consider aortic valve repair as an alternative to the prosthetic implant, especially in young people with many potential years of life for these complications. Aortic valve repair techniques are not excessively complicated, but there is no standardization, so they are not reproducible in all medical centers...
May 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28616345/wrapping-of-the-ascending-aorta-revisited-is-there-any-role-left-for-conservative-treatment-of-ascending-aortic-aneurysm
#10
REVIEW
José María González-Santos, María Elena Arnáiz-García
Dilatation of the ascending aorta (AA) is a common finding in patients with aortic valve disease. The clinical practice guidelines recommend replacing the AA whenever the diameter exceeds 45 mm. However, no consensus has been reached regarding the approach when the aorta is only moderately dilated. Although the risk in aorta replacement is generally low, it may be higher when associated with other complex surgical procedures or it is carried out in elderly patients or patients with significant comorbidity. This would justify the use of alternative surgical techniques, which reduce surgical risk and guarantee a durable correction of the aortic pathology...
May 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28612909/implantation-of-stents-for-postsurgical-recoarctation-of-the-aorta-in-adolescents-and-adults
#11
Sylwia Sulik-Gajda, Roland Fiszer, Jacek Białkowski, Beata Chodór, Szymon Pawlak, Małgorzata Szkutnik
BACKGROUND: Results of stent implantation (SI) of postsurgical recoarctation of the aorta (ReCoA) are not frequently published. AIM: This study sought to retrospectively evaluate results of SI in ReCoA in older children and adults. METHODS: Twenty-eight SI were performed on 26 ReCoA patients with a median age of 23(10-65) years. Dependent upon availability, the following stents were applied -Palmaz, Cheatham Platinum (CP), Andrastents XL/XXL(AS), Covered CP (CVCP) stents and selfexpanding stents (Smart)...
June 14, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/28611128/decreased-kcne2-expression-participates-in-the-development-of-cardiac-hypertrophy-by-regulation-of-calcineurin-nfat-nuclear-factor-of-activated-t-cells-and-mitogen-activated-protein-kinase-pathways
#12
Wenjuan Liu, Jianxin Deng, Wenwen Ding, Gang Wang, Yuanyuan Shen, Junmeng Zheng, Xiaoming Zhang, Yizhi Luo, Chifei Lv, Yonghui Wang, Liqing Chen, Dewen Yan, Ryan L Boudreau, Long-Sheng Song, Jie Liu
BACKGROUND: KCNE2 is a promiscuous auxiliary subunit of voltage-gated cation channels. A recent work demonstrated that KCNE2 regulates L-type Ca(2+) channels. Given the important roles of altered Ca(2+) signaling in structural and functional remodeling in diseased hearts, this study investigated whether KCNE2 participates in the development of pathological hypertrophy. METHODS AND RESULTS: We found that cardiac KCNE2 expression was significantly decreased in phenylephrine-induced cardiomyocyte hypertrophy in neonatal rat ventricular myocytes and in transverse aortic constriction-induced cardiac hypertrophy in mice, as well as in dilated cardiomyopathy in human...
June 2017: Circulation. Heart Failure
https://www.readbyqxmd.com/read/28611124/endothelial-senescence-contributes-to-heart-failure-with-preserved-ejection-fraction-in-an-aging-mouse-model
#13
Andreas B Gevaert, Hadis Shakeri, Arthur J Leloup, Cor E Van Hove, Guido R Y De Meyer, Christiaan J Vrints, Katrien Lemmens, Emeline M Van Craenenbroeck
BACKGROUND: Because of global aging, the prevalence of heart failure with preserved ejection fraction (HFpEF) continues to rise. Although HFpEF pathophysiology remains incompletely understood, endothelial inflammation is stated to play a central role. Cellular senescence is a process of cellular growth arrest linked with aging and inflammation. We used mice with accelerated aging to investigate the role of cellular senescence in HFpEF development. METHODS AND RESULTS: Senescence-accelerated mice (SAM, n=18) and control mice with normal senescence (n=15) were fed normal chow or a high-fat, high-salt diet (WD)...
June 2017: Circulation. Heart Failure
https://www.readbyqxmd.com/read/28611119/turbulent-kinetic-energy-assessed-by-multipoint-4-dimensional-flow-magnetic-resonance-imaging-provides-additional-information-relative-to-echocardiography-for-the-determination-of-aortic-stenosis-severity
#14
Christian Binter, Alexander Gotschy, Simon H Sündermann, Michelle Frank, Felix C Tanner, Thomas F Lüscher, Robert Manka, Sebastian Kozerke
BACKGROUND: Turbulent kinetic energy (TKE), assessed by 4-dimensional (4D) flow magnetic resonance imaging, is a measure of energy loss in disturbed flow as it occurs, for instance, in aortic stenosis (AS). This work investigates the additional information provided by quantifying TKE for the assessment of AS severity in comparison to clinical echocardiographic measures. METHODS AND RESULTS: Fifty-one patients with AS (67±15 years, 20 female) and 10 healthy age-matched controls (69±5 years, 5 female) were prospectively enrolled to undergo multipoint 4D flow magnetic resonance imaging...
June 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28608024/long-term-saxagliptin-treatment-improves-endothelial-function-but-not-pulse-wave-velocity-intima-media-thickness-in-type-2-diabetic-patients
#15
Raffaella Dell'Oro, Alessandro Maloberti, Francesco Nicoli, Paolo Villa, Pierluigi Gamba, Michele Bombelli, Giuseppe Mancia, Guido Grassi
INTRODUCTION: Pharmacological inhibition of dipeptidyl-peptidase-4 may represent a promising therapeutic approach for glucose control and vascular protection. No information is available on the effects of saxagliptin (S) on aortic pulse wave velocity, carotid intima-media thickness and flow-mediated dilation (FMD, brachial artery) in diabetes. AIM: We investigated the long-term effects of S, as add-on therapy to metformin, on the above mentioned variables. METHODS: In 16 patients with decompensated diabetes aortic pulse wave velocity, carotid intima-media thickness and FMD, office and 24-h ambulatory blood pressure, anthropometric, biochemical and metabolic parameters were measured at baseline and after 6 and 12 months of treatment...
June 12, 2017: High Blood Pressure & Cardiovascular Prevention: the Official Journal of the Italian Society of Hypertension
https://www.readbyqxmd.com/read/28606654/management-of-marfan-syndrome-during-pregnancy-a-real-world-experience-from-a-joint-cardiac-obstetric-service
#16
Joanna C E-S Lim, Matthew Cauldwell, Roshni R Patel, Anselm Uebing, Ruth A Curry, Mark R Johnson, Michael A Gatzoulis, Lorna Swan
BACKGROUND: Pregnancy in Marfan Syndrome (MFS) is associated with increased maternal risk of cardiovascular events. Given the maternal and genetic risks, pre-conception counselling is essential to facilitate informed choices. Multidisciplinary antenatal care with regular imaging is mandatory and best delivered through a Joint Cardiac Obstetric Service (JCOS). The aim of this study was to compare the care delivered in a JCOS against recognised international standards (European Society of Cardiology (ESC))...
May 22, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28600386/associations-of-age-and-sex-with-marfan-phenotype-the-national-heart-lung-and-blood-institute-gentac-genetically-triggered-thoracic-aortic-aneurysms-and-cardiovascular-conditions-registry
#17
Mary J Roman, Richard B Devereux, Liliana R Preiss, Federico M Asch, Kim A Eagle, Kathryn W Holmes, Scott A LeMaire, Cheryl L Maslen, Dianna M Milewicz, Shaine A Morris, Siddharth K Prakash, Reed E Pyeritz, William J Ravekes, Ralph V Shohet, Howard K Song, Jonathan W Weinsaft
BACKGROUND: The associations of age and sex with phenotypic features of Marfan syndrome have not been systematically examined in a large cohort of both children and adults. METHODS AND RESULTS: We evaluated 789 Marfan patients enrolled in the National Heart, Lung, and Blood Institute GenTAC (Genetically Triggered Thoracic Aortic Aneurysms and Cardiovascular Conditions) Registry (53% male; mean age 31 [range: 1-86 years]). Females aged ≥15 and males aged ≥16 years were considered adults based on average age of skeletal maturity...
June 2017: Circulation. Cardiovascular Genetics
https://www.readbyqxmd.com/read/28599977/fate-of-remnant-sinuses-of-valsalva-in-patients-with-bicuspid-and-trileaflet-valves-undergoing-aortic-valve-ascending-aorta-and-aortic-arch-replacement
#18
Rita Karianna Milewski, Andreas Habertheuer, Joseph E Bavaria, Mary Siki, Wilson Y Szeto, Eric Krause, Varun Korutla, Nimesh D Desai, Prashanth Vallabhajosyula
OBJECTIVE: In patients presenting with aortic valvulopathy with concomitant ascending aortic aneurysm, surgical management of the sinus of Valsalva segment remains undefined, especially for moderately dilated aortic roots. In patients with this pathology undergoing aortic valve replacement with supracoronary ascending aorta replacement, we assessed the fate of the remnant preserved sinus of Valsalva segment stratified by aortic valve morphology and pathology. METHODS: From 2002 to 2015, 428 patients underwent elective aortic valve replacement with supracoronary ascending aorta replacement...
April 28, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28598119/-aortic-and-mitral-annuli-coupling-and-its-association-with-cardiac-function-in-patients-with-dilated-cardiomyopathy
#19
Yan-Ting Liu, Wen-Juan Bai, Qiu Xie, Li Rao
OBJECTIVES: To compare the mitral and aortic annuli excursion (AE) and aortomitral angle (AMA) variations between patients with and without dilated cardiomyopathy (DCM) using speckle tracking echocardiography (STE),and determine the role of annuli dynamics and coupling behaviors in the left ventricular function. METHODS: Thirty-five patients with DCM and thirty-five age and sex matched healthy adults underwent transthoracic echocardiographic examinations.In the parasternal long-axis view,the AE and AMA variations were measured using Philips QLAB 9...
November 2016: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28595894/arterial-function-parameters-in-patients-with-metabolic-syndrome-and-severe-hypertriglyceridemia
#20
Egidija Rinkūnienė, Eglė Butkutė, Roma Puronaitė, Žaneta Petrulionienė, Vilma Dženkevičiūtė, Vytautas Kasiulevičius, Aleksandras Laucevičius
BACKGROUND: Hypertriglyceridemia (hTG) is 1 of the dyslipidemia manifestations in patients with metabolic syndrome (MetS). However, for several decades, the role of hTG in cardiovascular risk was not well established. OBJECTIVE: The aim of this study was to assess the parameters of the vascular structure and function in patients with MetS and different degree of hTG. METHODS: Patients (aged 40-65 years) with MetS were divided into 3 groups by triglyceride (TG) levels according to National Cholesterol Education Program Adult Treatment Panel III Guidelines: severe hTG (TG ≥ 500 mg/dL), moderate hTG (TG 200-499 mg/dL), and a control (TG < 150 mg/dL) groups...
May 4, 2017: Journal of Clinical Lipidology
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