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stenosis aortic valve

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https://www.readbyqxmd.com/read/28444455/prevalence-predictors-and-prognostic-implications-of-residual-impairment-of-functional-capacity-after-transcatheter-aortic-valve-implantation
#1
Mohammad Abdelghani, Rafael Cavalcante, Yosuke Miyazaki, Robbert J de Winter, Rogério Sarmento-Leite, José A Mangione, Alexandre Abizaid, Pedro A Lemos, Patrick W Serruys, Fabio S de Brito
BACKGROUND: Patients with degenerative aortic stenosis (AS) referred for transcatheter aortic valve implantation (TAVI) typically have advanced cardiac and vascular adverse remodeling and multiple comorbidities and, therefore, might not recover a normal functional capacity after valve replacement. We sought to investigate the prevalence, the predictors, and the prognostic impact of residual impairment of functional capacity after TAVI. METHODS AND RESULTS: Out of 790 patients undergoing TAVI with impaired functional capacity (NYHA II-IV) at baseline, NYHA functional class improved in 592 (86...
April 25, 2017: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/28441646/spontaneous-regression-of-possible-transcatheter-aortic-valve-thrombosis-without-additional-anticoagulant-two-year-follow-up
#2
Ryo Yanagisawa, Kentaro Hayashida, Masahiro Jinzaki, Keiichi Fukuda
An 84-year-old man with symptomatic severe aortic stenosis received transcatheter aortic valve implantation (TAVI). Dual-antiplatelet therapy was continued for 6 months post TAVI, and aspirin alone was used thereafter. Four-dimensional multidetector computed tomography revealed a new hypoattenuated leaflet thickening (HALT) with reduced leaflet motion at 1 year, considered to indicate leaflet thrombosis. At the 2-year follow-up, leaflet mobility had improved, with spontaneous regression of HALT. This is the first report of confirmed spontaneous regression of possible transcatheter heart valve thrombosis and recovery of leaflet mobility without the need for additional anticoagulant...
May 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28441641/low-volume-contrast-ct-angiography-via-pulmonary-artery-injection-for-measurement-of-aortic-annulus-in-patients-undergoing-transcatheter-aortic-valve-replacement
#3
Vien T Truong, Joseph Choo, Luke McCoy, Adam Mussman, Stephanie Ambach, Dean Kereiakes, Ian Sarembock, Wojciech Mazur
OBJECTIVES: To investigate the feasibility and image quality of low-dose contrast computed tomography (CT) angiography with pulmonary artery (PA) protocol. BACKGROUND: Aortic stenosis is the most common valvular heart disease and transcatheter aortic valve replacement (TAVR) has evolved as an alternative method for surgical valve replacement in intermediate-risk and high-risk surgical patients. CT is essential for measurement of aortic annulus prior to TAVR. METHODS: Twenty patients underwent a low-dose contrast study with PA protocol and 20 patients underwent a traditional-dose study (traditional protocol)...
May 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28439849/aortic-valve-replacement-after-coronary-artery-bypass-grafting-with-the-in-situ-right-gastroepiploic-artery-to-the-occluded-right-coronary-artery-using-a-temporary-vein-graft-for-cardioplegia
#4
Yoshifumi Fuke, Toru Yasutsune, Masato Sakamoto
BACKGROUND: The operation of aortic valve replacement (AVR) after CABG is a technically challenging procedure in respect to dissection of living grafts from its surrounding tissue, myocardial protection, and so on, especially that procedure to patients with living in situ functional arterial grafts to occluded native coronary arteries has a special problem in regard to myocardial protection because myocardial blood supply originates from various arteries including the left internal thoracic artery (LITA), the right internal thoracic artery (RITA), and the right gastroepiploic artery (GEA); hence, adequate myocardial protection should be fastidiously considered...
December 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28439213/a-clinical-perspective-on-the-utility-of-alpha-1-antichymotrypsin-for-the-early-diagnosis-of-calcific-aortic-stenosis
#5
Tatiana Martin-Rojas, Laura Mourino-Alvarez, Felix Gil-Dones, Fernando de la Cuesta, Esther Rosello-Lleti, Carlos M Laborde, Miguel Rivera, Luis Fernando Lopez-Almodovar, Juan Antonio Lopez, Finn Akerstrom, Luis R Padial, Maria G Barderas
BACKGROUND: Calcific aortic stenosis (CAS) is the most common heart valve disease in the elderly, representing an important economic and social burden in developed countries. Currently, there is no way to predict either the onset or progression of CAS, emphasizing the need to identify useful biomarkers for this condition. METHODS: We performed a multi-proteomic analysis on different kinds of samples from CAS patients and healthy donors: tissue, secretome and plasma...
2017: Clinical Proteomics
https://www.readbyqxmd.com/read/28438326/transapical-transcatheter-aortic-valve-implantation-using-the-j-valve-system-a-1-year-follow-up-study
#6
Xiang Luo, Xu Wang, Xuan Li, Xin Wang, Fei Xu, Mingzheng Liu, Bing Yu, Fei Li, Minghui Tong, Wei Wang
OBJECTIVE: Transcatheter aortic valve implantation has become a routine procedure to treat screened inoperable or high-risk patients. In this study, we present the first outcome of echocardiographic midterm using a new second-generation transcatheter aortic valve implantation system, the J-Valve system (Jie Cheng Medical Technologies, Suzhou, China), in patients with aortic stenosis or aortic regurgitation. METHODS: From July 2014 to June 2015, 21 patients with isolated aortic valve disease at high risk for open surgery received transapical transcatheter aortic valve implantation using the J-Valve system...
March 23, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28437243/impact-of-pulmonary-hypertension-on-in-hospital-outcome-after-surgical-or-transcatheter-aortic-valve-replacement
#7
Anja Gutmann, Klaus Kaier, Holger Reinecke, Lutz Frankenstein, Andreas Zirlik, Wolfgang Bothe, Constantin von Zur Mühlen, Manfred Zehender, Jochen Reinöhl, Christoph Bode, Peter Stachon
AIMS: The impact of pulmonary hypertension (PH) on in-hospital outcome of either surgical (SAVR) or transcatheter aortic valve replacement (TAVR) was analyzed. METHODS AND RESULTS: Data from all 107,057 patients undergoing isolated SAVR or TAVR in Germany between 2007 and 2014 was provided by the German Federal Bureau of Statistics. About 18% of patients with aortic valve stenosis suffered from PH. Patients with PH had more co- morbidities with consequently increased EuroSCORE (TAVR without PH: 12...
April 25, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28434646/factors-determining-aortic-valve-dysfunction-in-korean-subjects-with-a-bicuspid-aortic-valve
#8
Soo Youn Lee, Chi Young Shim, Darae Kim, Iksung Cho, Geu-Ru Hong, Jong-Won Ha, Namsik Chung
Bicuspid aortic valve (BAV) disease has a male predominance of approximately 3:1 and shows diverse presentations about aortic valve dysfunction. This study aimed to find independent determinants for significant aortic stenosis (AS) or significant aortic regurgitation (AR) in adults with BAV. We retrospectively investigated the medical records of 1,073 subjects (773 men, mean age 55 ± 14 years) who were first diagnosed with BAV disease by transthoracic echocardiography. We excluded 52 subjects with both significant AS and significant AR...
March 29, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28433492/is-tavr-ready-for-the-global-aging-population
#9
REVIEW
Travis Bergmann, Partho P Sengupta, Jagat Narula
The emergence of the global pandemic of chronic diseases necessitates critical assessment of interventions that can be targeted at both the individual and population levels. Among cardiovascular diseases, the increasing prevalence of valvular heart diseases such as aortic stenosis parallels the rising burden of atherosclerotic cardiovascular diseases. As an alternative to surgical aortic valve replacement, technological innovation has allowed development of minimally invasive transcatheter aortic valve replacement (TAVR)...
April 19, 2017: Global Heart
https://www.readbyqxmd.com/read/28433490/evaluating-health-of-emerging-economies-through-the-eyes-of-heart-valve-disease-in%C3%A2-the%C3%A2-transcatheter-era
#10
REVIEW
Sameer Arora, Cassandra J Ramm, Amol A Bahekar, John P Vavalle
China and India are the 2 fastest growing major world economies. However, they suffer from great differences in health policies, demographics, and rates of population growth. Whereas China has seen a steep decline in rheumatic heart disease (RHD) and a rise in life expectancy, India continues to suffer from a significant burden of RHD due to insufficient distribution of economic prosperity to health care, denser population, and ineffective application of World Health Organization RHD prevention guidelines. As China faces the burden of the world's largest geriatric population, focus has shifted to calcific aortic stenosis for which it prepares by expansions in the field of transcatheter aortic valve replacement...
April 19, 2017: Global Heart
https://www.readbyqxmd.com/read/28432156/epidemiology-of-valvular-heart-disease-in-a-swedish-nationwide-hospital-based-register-study
#11
Pontus Andell, Xinjun Li, Andreas Martinsson, Charlotte Andersson, Martin Stagmo, Bengt Zöller, Kristina Sundquist, J Gustav Smith
OBJECTIVE: Transitions in the spectrum of valvular heart diseases (VHDs) in developed countries over the 20th century have been reported from clinical case series, but large, contemporary population-based studies are lacking. METHODS: We used nationwide registers to identify all patients with a first diagnosis of VHD at Swedish hospitals between 2003 and 2010. Age-stratified and sex-stratified incidence of each VHD and adjusted comorbidity profiles were assessed...
April 21, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28431738/aortic-valve-replacement-in-low-flow-low-gradient-aortic-stenosis-left-ventricular-ejection-fraction-matters
#12
EDITORIAL
Victor Dayan, Philippe Pibarot
No abstract text is available yet for this article.
April 2, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28431442/-aortic-valve-stenosis-when-to-treat-interventionally-when%C3%A2-surgically
#13
Won-Keun Kim, Christian W Hamm
The mainstay for the current treatment of severe aortic stenosis includes surgical aortic valve replacement (SAVR) and transcatheter aortic valve implantation (TAVI). In patients with high operative risk TAVI is established as first line therapy. New data on intermediate and low risk groups demonstrate at least non-inferiority of TAVI against SAVR, and in the near future a consistently rising number of transcatheter procedures may be anticipated. The purpose of this review is to outline the decision making process, hence to illustrate the diagnostic algorithm and to provide criteria for a differentiated approach against the background of recent data...
April 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28431214/interferon-%C3%AE-released-by-activated-cd8-t-lymphocytes-impairs-the-calcium-resorption-potential-of-osteoclasts-in-calcified-human-aortic-valves
#14
Edit Nagy, Yang Lei, Eduardo Martínez-Martínez, Simon C Body, Florian Schlotter, Michael Creager, Alexander Assmann, Kamal Khabbaz, Peter Libby, Göran K Hansson, Elena Aikawa
Calcium content in patients with calcific aortic valve disease (CAVD) correlates with the severity of stenosis. In CAVD, activated T lymphocytes localize with osteoclast regions; however, the functional consequences of this association remain unknown. We hypothesized that CD8(+) T cells modulate calcification in CAVD. Explanted CAVD valves (n = 52) dissected into noncalcified and calcified portions were subjected to mRNA extraction, real-time quantitative PCR, enzyme-linked immunosorbent assay, and immunohistochemical analyses...
April 18, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28430791/the-medically-managed-patient-with-severe-symptomatic-aortic-stenosis-in-the-tavr-era-patient-characteristics-reasons-for-medical-management-and-quality-of-shared-decision-making-at-heart-valve-treatment-centers
#15
Kumar Dharmarajan, Jill Foster, Megan Coylewright, Philip Green, John P Vavalle, Osman Faheem, Pei-Hsiu Huang, Amar Krishnaswamy, Vinod H Thourani, Lisa A McCoy, Tracy Y Wang
BACKGROUND: Little is known about patients with severe symptomatic aortic stenosis (AS) who receive medical management despite evaluation at a heart valve treatment center. OBJECTIVE: We identified patient characteristics associated with medical management, physician-reported reasons for selecting medical management, and patients' perceptions of their involvement and satisfaction with treatment selection. METHODS AND RESULTS: Of 454 patients evaluated for AS at 9 established heart valve treatment centers from December 12, 2013 to August 19, 2014, we included 407 with severe symptomatic AS...
2017: PloS One
https://www.readbyqxmd.com/read/28429500/electrocardiographic-appearance-of-aortic-stenosis-before-and-after-aortic-valve-replacement
#16
Ivana I Vranic
BACKGROUND: So far, the specific appearance of QRS complex, ST-segment, and T wave was observed in aortic stenosis (AS). S-wave dynamic change in leads V1 -V3 was not reported in AS. METHODS: In a single-center, prospective study, we included a total number of 1.175 patients who underwent surgical aortic valve replacement (AVR). We conducted 3-year gathering of patients with symptomatic and asymptomatic severe AS, and separated them by hemodynamic stability into groups A and B, through EFLV (of more or less than 50%), AVA (of more or less than 0...
April 21, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28427598/computed-tomography-based-oversizing-degrees-and-incidence-of-paravalvular-regurgitation-of-a-new-generation-transcatheter-heart-valve
#17
Philipp Blanke, Philippe Pibarot, Rebecca Hahn, Neil Weissman, Susheel Kodali, Vinod Thourani, Rupa Parvataneni, Danny Dvir, Christopher Naoum, Bjarne L Nørgaard, Pamela Douglas, Wael Jaber, Omar K Khalique, Hasan Jilaihawi, Michael Mack, Craig Smith, Martin Leon, John Webb, Jonathon Leipsic
OBJECTIVES: The aim of the study was to investigate the influence of the extent of computed tomography (CT)-based area and perimeter oversizing on the incidence and severity of paravalvular aortic regurgitation (PAR) for the Edwards SAPIEN 3 (Edwards Lifesciences, Irvine, California) device, using CT data and echocardiographic outcome data of the PARTNER II (Placement of AoRTic TraNscathetER Valves Trial II) SAPIEN 3 intermediate-risk cohort. BACKGROUND: Transcatheter heart valve (THV) sizing algorithms are device specific, requiring refinements for new valve designs...
April 24, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28425248/the-effect-of-transcatheter-aortic-valve-implantation-on-mean-platelet-volume
#18
Mehmet Burak Özen, Hüseyin Ayhan, Hacı Ahmet Kasapkara, Telat Keleş, Tahir Durmaz, Kemal Eşref Erdoğan, Bilge Duran Karaduman, Serdal Baştuğ, Cenk Sari, Abdullah Nabi Aslan, Engin Bozkurt
BACKGROUND/AIM: Transcatheter aortic valve implantation (TAVI) is an innovative approach to the treatment of aortic stenosis (AS) as an alternative to surgery in high-risk patients. Mean platelet volume (MPV) is considered an indicator of endothelial dysfunction, platelet function, and activation. In this study, we aimed to investigate MPV changes in patients undergoing TAVI. MATERIALS AND METHODS: This study included 100 patients diagnosed with symptomatic severe AS and treated with TAVI between July 2011 and August 2013...
April 18, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28420669/a-possible-early-biomarker-for-bicuspid-aortopathy-circulating-transforming-growth-factor-beta-1-to-soluble-endoglin-ratio
#19
Amalia Forte, Ciro Bancone, Gilda Cobellis, Marianna Buonocore, Giuseppe Santarpino, Theodor Fischlein, Marilena Cipollaro, Marisa De Feo, Alessandro Della Corte
Rationale: The pathogenesis of bicuspid aortic valve (BAV)-associated aortopathy is poorly understood and no prognostic biomarker is currently available. Objective: We aimed to identify putative circulating biomarkers pathogenetically and prognostically linked to bicuspid aortopathy. Methods and Results: By RT-PCR, we evaluated gene expression variations (versus normal aorta) of transforming growth factor-beta1 (TGF-β1), connective tissue growth factor (CTGF), matrix metalloproteinase-2 (MMP-2), MMP-14, endoglin (ENG) and superoxide dismutase 3 (SOD3) in ascending aorta samples from 50 tricuspid and 70 BAV patients undergoing surgery for aortic stenosis (aorta diameter ≤45mm: BAVnon-dil or >45mm: BAVdil)...
April 18, 2017: Circulation Research
https://www.readbyqxmd.com/read/28418954/aortic-root-abscess-clearly-shown-on-111in-leukocyte-scan-but-less-obvious-on-transesophageal-echocardiogram
#20
Harleen Kaur, John Seitz, Mitchel Muhleman, David Cragg, Feng Qing
A 79-year-old man with history of aortic stenosis, status post bioprosthetic aortic valve replacement, episodes of bacteremia, and endocarditis presented to hospital with fever. Clinical assessment led to suspicion of possible endocarditis. Initial interpretation of transesophageal echocardiogram was inconclusive without vegetation in mitral/aortic valve. An In-leukocyte scan demonstrated increased uptake in the area of aortic valve, suggestive of infection. Further review of the transesophageal echocardiogram showed signs of annular abscess...
April 17, 2017: Clinical Nuclear Medicine
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