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Aortic stenosi

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https://www.readbyqxmd.com/read/28528156/prognostic-impact-of-low-flow-severe-aortic-stenosis-in-small-body-patients-undergoing-tavr-the-ocean-tavi-registry
#1
Akihisa Kataoka, Yusuke Watanabe, Ken Kozuma, Yugo Nara, Fukuko Nagura, Hideyuki Kawashima, Hirofumi Hioki, Makoto Nakashima, Masanori Yamamoto, Kensuke Takagi, Motoharu Araki, Norio Tada, Shinichi Shirai, Futoshi Yamanaka, Kentaro Hayashida
OBJECTIVES: This study aimed to analyze the prognostic impact of low-flow (LF) severe aortic stenosis in small-body patients undergoing transcatheter aortic valve replacement (TAVR). BACKGROUND: Western literature demonstrates a poor prognosis with paradoxical LF and low-flow low-gradient (LF-LG) severe aortic stenosis (AS), as defined by stroke volume index (SVi) <35 ml/m(2) and mean pressure gradient <40 mm Hg with preserved left ventricular ejection fraction (LVEF)...
May 11, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28528152/severe-aortic-stenosis-it-used-to-be-simple
#2
EDITORIAL
Randolph P Martin
No abstract text is available yet for this article.
May 11, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28528068/aortic-valve-stenosis-in-alkaptonuria
#3
Christos Tourmousoglou, Nikolaos Nikoloudakis, Antonis Pitsis
No abstract text is available yet for this article.
June 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28521921/1-year-results-in-patients-undergoing-transcatheter-aortic-valve-replacement-with-failed-surgical-bioprostheses
#4
G Michael Deeb, Stanley J Chetcuti, Michael J Reardon, Himanshu J Patel, P Michael Grossman, Theodore Schreiber, John K Forrest, Tanvir K Bajwa, Daniel P O'Hair, George Petrossian, Newell Robinson, Stanley Katz, Alan Hartman, Harold L Dauerman, Joseph Schmoker, Kamal Khabbaz, Daniel R Watson, Steven J Yakubov, Jae K Oh, Shuzhen Li, Neal S Kleiman, David H Adams, Jeffrey J Popma
OBJECTIVES: This study evaluated the safety and effectiveness of self-expanding transcatheter aortic valve replacement (TAVR) in patients with surgical valve failure (SVF). BACKGROUND: Self-expanding TAVR is superior to medical therapy for patients with severe native aortic valve stenosis at increased surgical risk. METHODS: The CoreValve U.S. Expanded Use Study was a prospective, nonrandomized study that enrolled 233 patients with symptomatic SVF who were deemed unsuitable for reoperation...
May 22, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28520944/multiple-causes-of-syncope-in-the-elderly-diagnostic-outcomes-of-a-dutch-multidisciplinary-syncope-pathway
#5
Susanne C de Ruiter, Johan F H Wold, Tjeerd Germans, Jaap H Ruiter, René W M M Jansen
Aims: To assess the diagnostic outcomes of a multidisciplinary pathway for elderly syncope patients. Methods and results: Observational cohort study at a Fall and Syncope Clinic, including consecutive syncope patients aged ≥65 years between 2011 and 2014. Measurements: The sort, number, and accuracy of diagnoses resulting in syncope. Secondary outcomes: reliability of the medical history and the number of electrocardiogram (ECG) abnormalities. The 117 included patients (72% females) had a mean age of 80 ± 6...
May 17, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28516313/dynamic-changes-in-aortic-impedance-after-transcatheter-aortic-valve-replacement-and-its-impact-on-exploratory-outcome
#6
Yukari Kobayashi, Juyong B Kim, Kegan J Moneghetti, Yuhei Kobayashi, Ran Zhang, Daniel A Brenner, Ryan O'Malley, Ingela Schnittger, Michael Fischbein, D Craig Miller, Alan C Yeung, David Liang, Francois Haddad, William F Fearon
Valvulo-arterial impedance (Zva) has been shown to predict worse outcome in medically managed aortic stenosis (AS) patients. We aimed to investigate the association between Zva and left ventricular (LV) adaptation and to explore the predictive value of Zva for cardiac functional recovery and outcome after transcatheter aortic valve replacement (TAVR). We prospectively enrolled 128 patients with AS who underwent TAVR. Zva was calculated as: (systolic blood pressure + mean transaortic gradient)/stroke volume index)...
May 17, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28516094/combined-transapical-transcatheter-aortic-valve-replacement-and-thoracic-endovascular-aortic-repair-for-severe-aortic-stenosis-and-arch-aneurysm
#7
Yuanjia Zhu, Eric E Roselli, Jay J Idrees, Samir Kapadia, Lars G Svensson
An 83-year-old male with multiple comorbidities presented with critical aortic stenosis and a saccular aortic arch aneurysm. Through a mini thoracotomy, a balloon expandable transcatheter aortic valve was delivered transapically. A thoracic stent graft was then delivered through the prosthetic valve and deployed in the arch, while a covered stent was deployed in the left common carotid artery. Three-year postoperative computed tomography showed a thrombosed arch aneurysm with decreased size. This case demonstrates the feasibility of using combined transapical transcatheter technologies to treat multicomponent disease in a high-risk patient during a single operation...
October 2016: Aorta (Stamford, Conn.)
https://www.readbyqxmd.com/read/28516093/iatrogenic-supravalvular-aortic-stenosis
#8
Paolo Bosco, Antonella Ferrara, Samer A M Nashef
We describe a case of hemolytic anemia and proximal anastomotic site stenosis following emergency repair of a Type A aortic dissection. This rare complication led to a reoperation to correct the iatrogenic aortic stenosis and cure the consequent hemolysis. A "sandwich" technique (with two Teflon strips on the outside and inside of the aortic wall) was used in the initial repair to reinforce the suture line and prevent bleeding from the aortic anastomoses. At the time of reoperation, the inner Teflon strip at the proximal aortic anastomosis was found to have inverted into the aortic lumen, as suggested by the preoperative magnetic resonance imaging...
October 2016: Aorta (Stamford, Conn.)
https://www.readbyqxmd.com/read/28513189/transcatheter-aortic-valve-implantation-the-transaortic-approach
#9
Simon Cy Chow, Gary Sh Cheung, Alex Pw Lee, Eugene B Wu, Jacky Yk Ho, Micky Wt Kwok, Peter Sy Yu, Innes Yp Wan, Malcolm J Underwood, Randolph Hl Wong
Background Transcatheter aortic valve implantation has been established as a safe and effective treatment option for patients at high or prohibitive surgical risk. However, some patients may not be suitable for the transfemoral approach due to severe iliofemoral disease or aneurysmal disease of the thoracoabdominal aorta. The aim of this case series was to evaluate the feasibility and clinical outcomes of the transaortic approach. Methods From May 2015 to June 2016, 5 patients (mean age 78.4 ± 3.9 years) with severe symptomatic aortic stenosis underwent transaortic transcatheter aortic valve implantation after a heart team discussion...
January 1, 2017: Asian Cardiovascular & Thoracic Annals
https://www.readbyqxmd.com/read/28511326/-comparison-of-aortic-annular-diameter-defined-by-different-measurement-mordalities-before-transcatheter-aortic-valve-implantation
#10
R X Qi, X D You, Z X Pu, Q Yang, Z X Huang, L M Zhou, P T Huang
Objective: To compare aortic annular diameter measured by transthoracic echocardiography (TTE), transesophageal echocardiography (TEE), and multislice computed tomography (MSCT) in patients with severe aortic stenosis, and to evaluate the impact on selection of prosthetic valve type in transcatheter aortic valve implantation (TAVI). Methods: Clinical data of 138 patients with severe aortic stenosis referred for TAVI between January 2014 and June 2016 in our hospital were retrospectively analyzed.The difference of aortic annular diameter measured by TTE, TEE, and MSCT were compared...
May 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28511027/ross-konno-procedure-with-cylinder-mitral-valve-replacement-in-49-days-old-infant
#11
Oleg Fedevych, Oleksandr Yachnik, Yaroslav Mykychak, Yaroslav Ivanov, Olga Borodinova, Illya Yemets
A neonate with antenatally diagnosed severe aortic valve stenosis, left ventricular outflow tract obstruction, left ventricular endocardial fibroelastosis, and severe mixed mitral valve disease was admitted to our center for balloon aortic valvuloplasty. On day 49, we performed a Ross-Konno procedure and mitral valve replacement on the baby, whose weight was 3.4 kg. Right ventricle-to-pulmonary artery continuity was restored with a handmade trileaflet Gore-Tex conduit. We used a handmade cylindrical prosthesis made from decellularized equine pericardium in the mitral position...
January 1, 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28510739/comparison-of-preoperative-and-intraoperative-assessment-of-aortic-stenosis-severity-by-echocardiography
#12
Y Uda, B Cowie, R Kluger
Background: General anaesthesia and surgically induced changes in cardiac loading conditions may alter flow across the aortic valve. This study examined how echocardiographic assessment of the severity of aortic stenosis (AS) changes during surgery. Methods: Patients who underwent aortic valve replacement for any severity of AS between July 2007 and June 2015 were identified. Peak velocities, mean gradients, and dimensionless indices (DI) measured with preoperative transthoracic echocardiography (TTE) were compared with those measured with intraoperative transoesophageal echocardiography (TOE)...
May 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28508119/lipoprotein-a-a-lipoprotein-whose-time-has-come
#13
REVIEW
Erik Kelly, Linda Hemphill
Cardiovascular disease is a leading cause of morbidity and mortality in the USA and around the world. While we are now able to achieve significant low-density lipoprotein cholesterol (LDL-C) lowering with current therapies, many patients remain at risk for cardiovascular disease (CVD). Elevated lipoprotein(a) [Lp(a)] has been shown to be an independent risk factor for CVD and accounts for some of the residual CVD risk after LDL-C lowering in several large clinical trials. Moreover, there is now strong evidence supporting the causal relationship between Lp(a) and aortic stenosis as well as peripheral arterial disease...
July 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28507251/stress-testing-in-asymptomatic-aortic-stenosis
#14
REVIEW
Björn Redfors, Philippe Pibarot, Linda D Gillam, Daniel Burkhoff, Jeroen J Bax, Brian R Lindman, Robert O Bonow, Patrick T O'Gara, Martin B Leon, Philippe Généreux
Aortic stenosis is 1 of the most common heart valve diseases among adults. When symptoms develop, prognosis is poor, and current guidelines recommend prompt aortic valve replacement. Depending of the severity of the aortic stenosis and the presence of concomitant heart disease and medical comorbidities, stress testing represents a reasonable strategy to help better risk stratify asymptomatic patients. The present report provides a comprehensive review of the current available data on stress testing in aortic stenosis and subsequently summarizes its potential for guiding the optimal timing of aortic valve replacement...
May 16, 2017: Circulation
https://www.readbyqxmd.com/read/28507250/a-rock-and-a-hard-place-chiseling-away-at-the-multiple-mechanisms-of-aortic-stenosis
#15
EDITORIAL
Elena Aikawa, Peter Libby
No abstract text is available yet for this article.
May 16, 2017: Circulation
https://www.readbyqxmd.com/read/28506942/insights-into-the-need-for-permanent-pacemaker-following-implantation-of-the-repositionable-lotus%C3%A2-valve-for-the-transcatheter-aortic-valve-replacement-in-250-patients-results-from-the-reprise-ii-trial-with-extended-cohort
#16
Nicolas Dumonteil, Ian T Meredith, Daniel J Blackman, Didier Tchétché, David Hildick-Smith, Mark S Spence, Darren L Walters, Jan Harnek, Stephen G Worthley, Gilles Rioufol, Thierry Lefèvre, Thomas Modine, Nicolas Van Mieghem, Vicki M Houle, Dominic J Allocco, Keith D Dawkins
AIMS: This analysis evaluated the incidence and predictors of the need for permanent pacemaker (PPM) implantation following implantation of the repositionable and fully retrievable Lotus Aortic Valve Replacement System. METHODS & RESULTS: The prospective, single arm, multicentre REPRISE II study with extended cohort enrolled 250 symptomatic, high surgical risk patients with severe aortic stenosis for transfemoral transcatheter aortic valve implantation (TAVI) with a 23mm or 27mm Lotus Valve...
May 16, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28506646/virtual-resting-pd-pa-from-coronary-angiography-and-blood-flow-modelling-diagnostic-performance-against-fractional-flow-reserve
#17
Michail I Papafaklis, Takashi Muramatsu, Yuki Ishibashi, Christos V Bourantas, Dimitrios I Fotiadis, Emmanouil S Brilakis, Héctor M Garcia-Garcia, Javier Escaned, Patrick W Serruys, Lampros K Michalis
BACKGROUND: Fractional flow reserve (FFR) has been established as a useful diagnostic tool. The distal coronary pressure to aortic pressure (Pd/Pa) ratio at rest is a simpler physiologic index but also requires the use of the pressure wire, whereas recently proposed virtual functional indices derived from coronary imaging require complex blood flow modelling and/or are time-consuming. Our aim was to test the diagnostic performance of virtual resting Pd/Pa using routine angiographic images and a simple flow model...
May 3, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28502734/transcatheter-aortic-valve-implantation-in-patients-at-intermediate-surgical-risk
#18
REVIEW
Carmen Spaccarotella, Annalisa Mongiardo, Salvatore De Rosa, Ciro Indolfi
Transcatheter Aortic Valve Implantation (TAVI) has revolutionized the treatment of elderly patients with symptomatic severe aortic stenosis (AS). Initially tested in unoperable or high surgical risk patients, the safety and efficacy of TAVI has progressively improved, with increasing operators' experience and continuous technical refinements of the devices and of the delivery systems. Hence, the extension of clinical indications for TAVI to the intermediate-risk population has been attracting cardiologists in recent years...
May 4, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28502640/a-cohort-study-reveals-myocarditis-to-be-a-rare-and-life-threatening-presentation-of-large-vessel-vasculitis
#19
Katie Bechman, Deepa Gopalan, Petros Nihoyannopoulos, Justin C Mason
BACKGROUND: The predominant forms of adult large vessel vasculitis (LVV) are giant cell arteritis (GCA) and Takayasu arteritis (TA). Cardiac involvement in LVV is a cause of morbidity and mortality, particularly in TA. Cardiac failure is most commonly secondary to uncontrolled arterial hypertension or myocardial ischaemia. Pulmonary hypertension and aortic valve incompetence following ascending aortic dilatation represent other serious cardiovascular complications. However, cardiac failure as a consequence of myocarditis is rarely reported, principally in single case reports or in autopsy studies...
April 4, 2017: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/28500739/feasibility-and-safety-of-transfemoral-sheathless-portico-aortic-valve-implantation-preliminary-results-in-a-single-center-experience
#20
Maurizio Taramasso, Andrea Denegri, Shingo Kuwata, Hans Rickli, Philipp K Haager, Gabor Sütsch, Hector Rodriguez Cetina Biefer, Jan Kottwitz, Fabian Nietlispach, Francesco Maisano
BACKGROUND: Feasibility of transfemoral (TF) transcathteter aortic valve replacement (TAVR) is limited by the smallest diameter, the calcification and tortuosity of the iliofemoral access vessels. The use of the Portico system without delivery sheath results in significantly lower profile delivery system compared to standard technique. We herein report our single center experience, feasibility and safety of such an approach. METHODS: The Portico valve was implanted sheathless in 81 high-risk patients with severe aortic stenosis utilizing percutaneous femoral access...
May 13, 2017: Catheterization and Cardiovascular Interventions
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