keyword
MENU ▼
Read by QxMD icon Read
search

Aortic stenosis TAVR

keyword
https://www.readbyqxmd.com/read/27911025/effect-of-balloon-expandable-transcatheter-aortic-valve-replacement-positioning-a-patient-specific-numerical-model
#1
Matteo Bianchi, Gil Marom, Ram P Ghosh, Harold A Fernandez, James R Taylor, Marvin J Slepian, Danny Bluestein
Transcatheter aortic valve replacement (TAVR) has emerged as a life-saving and effective alternative to surgical valve replacement in high-risk, elderly patients with severe calcific aortic stenosis. Despite its early promise, certain limitations and adverse events, such as suboptimal placement and valve migration, have been reported. In the present study, it was aimed to evaluate the effect of various TAVR deployment locations on the procedural outcome by assessing the risk for valve migration. The deployment of a balloon-expandable Edwards SAPIEN valve was simulated via finite element analysis in a patient-specific calcified aortic root, which was reconstructed from CT scans of a retrospective case of valve migration...
December 2016: Artificial Organs
https://www.readbyqxmd.com/read/27903371/-impact-of-reduced-left-ventricular-ejection-fraction-on-all-cause-mortality-of-75-years-old-and-over-patients-with-moderate-to-severe-aortic-stenosis
#2
Z Li, Y Q Ye, M Y Wang, H Y Xu, S Y Teng, J Qian, W Wang, X Wang, Y J Wu
Objective: To evaluate the impact of left ventricular systolic dysfunction on all-cause mortality of 75 years old and over patients with moderate to severe aortic stenosis. Methods: Clinical data of 301 consecutive aged (≥75 years old) patients with a diagnosis of non-rheumatic moderate to severe aortic stenosis by echocardiography between January 1, 2008 and January 1, 2015 in our hospital were retrospectively analyzed. According to the LVEF, patients were divided into normal LVEF subjects and low LVEF subjects, and the low LVEF level was set at below 60%(≤60%(n=171)vs...
October 24, 2016: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/27899140/transapical-transcatheter-aortic-valve-replacement-in-patients-with-or-without-prior-coronary-artery-bypass-graft-operation
#3
Konstantinos V Voudris, S Chiu Wong, Ryan Kaple, Polydoros N Kampaktsis, Andreas R de Biasi, Jonathan S Weiss, Richard Devereux, Karl Krieger, Luke Kim, Rajesh V Swaminathan, Dmitriy N Feldman, Harsimran Singh, Nikolaos J Skubas, Robert M Minutello, Geoffrey Bergman, Arash Salemi
BACKGROUND: Transapical approach (TA) is an established access alternative to the transfemoral technique in patients undergoing transcatheter aortic valve replacement (TAVR) for treatment of symptomatic aortic valve stenosis. The impact of prior coronary artery bypass grafting (CABG) on clinical outcomes in patients undergoing TA-TAVR is not well defined. METHODS: A single center retrospective cohort analysis of 126 patients (male 41%, mean age 85.8 ± 6.1 years) who underwent TA balloon expandable TAVR (Edwards SAPIEN, SAPIEN XT or SAPIEN 3) was performed...
November 29, 2016: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/27890512/safety-and-efficacy-of-valve-repositioning-during-transcatheter-aortic-valve-replacement-with-the-lotus-valve-system
#4
Hashrul N Z Rashid, Robert Gooley, Liam McCormick, Sarah Zaman, Satish Ramkumar, Damon Jackson, Ameera Amiruddin, Arthur Nasis, James Cameron, Ian T Meredith
OBJECTIVE: To determine the safety and efficacy of valve repositioning following transcatheter aortic valve replacement (TAVR) with the Lotus Valve System (Boston Scientific, Marlborough, MA, USA). INTRODUCTION: TAVR is a well-established treatment for severe aortic stenosis. The Lotus Valve System is fully repositionable and retrievable. Valve repositioning has the potential to minimize TAVR-related complications caused by valve malposition; however, the effect on adverse event rates such as stroke is unknown...
November 24, 2016: Journal of Cardiology
https://www.readbyqxmd.com/read/27887725/a-calcified-polymeric-valve-for-valve-in-valve-applications
#5
Ahmad Falahatpisheh, Daisuke Morisawa, Taraz T Toosky, Arash Kheradvar
The prevalence of aortic valve stenosis (AS) is increasing in the aging society. More recently, novel treatments and devices for AS, especially transcatheter aortic valve replacement (TAVR) have significantly changed the therapeutic approach to this disease. Research and development related to TAVR require testing these devices in the calcified heart valves that closely mimic a native calcific valve. However, no animal model of AS has yet been available. Alternatively, animals with normal aortic valve that are currently used for TAVR experiments do not closely replicate the aortic valve pathology required for proper testing of these devices...
November 16, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27886617/transcatheter-versus-surgical-aortic-valve-replacement-in-low-to-intermediate-risk-patients-a-meta-analysis-of-randomized-and-observational-studies
#6
Yijiang Zhou, Yanwei Wang, Yutao Wu, Jianhua Zhu
BACKGROUND: Transcatheter aortic valve replacement (TAVR) has become the treatment of choice for patients with aortic stenosis and the preferred alternative for high surgical risk patients. However, TAVR's suitability for patients at low to intermediate risk still remains controversial. METHODS: PubMed, MEDLINE and Clinical trials were systematically searched for randomized control trials and observational cohort studies which reported the clinical outcomes of TAVR versus surgical aortic valve replacement (SAVR) in patients at low to intermediate surgical risk...
November 12, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27867654/patient-prosthesis-mismatch-surgical-aortic-valve-replacement-versus-transcatheter-aortic-valve-replacement-in-high-risk-patients-with-aortic-stenosis
#7
COMMENT
Ravi K Ghanta, Irving L Kron
Patient prosthesis mismatch (PPM) can occur when a prosthetic aortic valve has an effective orifice area (EOA) less than that of a native valve. A recent study by Zorn and colleagues evaluated the incidence and significance of PPM in high risk patients with severe aortic stenosis who were randomized to transcatheter aortic valve replacement (TAVR) or surgical aortic valve replacement (SAVR). TAVR is associated with decreased incidence of severe PPM compared to traditional SAVR valves. Severe PPM increases risk for death at 1 year postoperatively in high risk patients...
October 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/27863908/role-of-echocardiography-for-catheter-based-management-of-valvular-heart-disease
#8
REVIEW
Takahiro Shiota
Catheter-based treatment of valvular heart disease, such as transvalvular aortic valve replacement (TAVR) or mitral clip procedure, has been increasingly accepted as a treatment choice for the past several years. Such new treatment options have been changing the management of patients with valvular heart disease drastically while socio-economic factors regarding their application need to be taken into consideration. The use of echocardiography, including transesophageal echocardiography (TEE), for such catheter-based treatments is essential for the success of the procedures...
November 15, 2016: Journal of Cardiology
https://www.readbyqxmd.com/read/27862860/incidence-and-predictors-of-permanent-pacemaker-implantation-following-treatment-with-the-repositionable-lotus%C3%A2-transcatheter-aortic-valve
#9
Sarah Zaman, Liam McCormick, Robert Gooley, Hashrul Rashid, Satish Ramkumar, Damon Jackson, Samuel Hui, Ian T Meredith
OBJECTIVES: To determine the incidence and predictors of permanent pacemaker (PPM) requirement following transcatheter aortic valve replacement (TAVR) with the mechanically expanded Lotus(TM) Valve System (Boston Scientific). BACKGROUND: Pacemaker implantation is the most common complication following TAVR. Predictors of pacing following TAVR with the Lotus valve have not been systematically assessed. METHODS: Consecutive patients with severe aortic stenosis who underwent Lotus valve implantation were prospectively recruited at a single-centre...
November 12, 2016: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/27860546/transcatheter-aortic-valve-replacement-state-of-the-art-and-future-directions
#10
Mackram F Eleid, David R Holmes
Transcatheter aortic valve replacement (TAVR) is a transformational and rapidly evolving treatment for patients with aortic stenosis who require valve replacement. Novel technological advancements have made this percutaneous minimally invasive therapy a first-line treatment for many patients at extreme risk for conventional cardiac surgery. New devices and improvements in existing devices have reduced procedural complications, and scientific trials are investigating the role of TAVR in lower-risk aortic stenosis populations, in patients with aortic regurgitation, and in patients with bicuspid aortic valve disease...
November 14, 2016: Annual Review of Medicine
https://www.readbyqxmd.com/read/27847562/optimal-c-arm-angulation-during-transcatheter-aortic-valve-replacement-accuracy-of-a-rotational-c-arm-computed-tomography-based-three-dimensional-heart-model
#11
Verena Veulemans, Sabine Mollus, Axel Saalbach, Max Pietsch, Katharina Hellhammer, Tobias Zeus, Ralf Westenfeld, Jürgen Weese, Malte Kelm, Jan Balzer
AIM: To investigate the accuracy of a rotational C-arm CT-based 3D heart model to predict an optimal C-arm configuration during transcatheter aortic valve replacement (TAVR). METHODS: Rotational C-arm CT (RCT) under rapid ventricular pacing was performed in 57 consecutive patients with severe aortic stenosis as part of the pre-procedural cardiac catheterization. With prototype software each RCT data set was segmented using a 3D heart model. From that the line of perpendicularity curve was obtained that generates a perpendicular view of the aortic annulus according to the right-cusp rule...
October 26, 2016: World Journal of Cardiology
https://www.readbyqxmd.com/read/27845874/initial-single-center-experience-with-the-fully-repositionable-transfemoral-lotus-aortic-valve-system
#12
Kai-Uwe Jarr, Florian Leuschner, Benjamin Meder, Hugo A Katus, Raffi Bekeredjian, Emmanuel Chorianopoulos
BACKGROUND: Transcatheter aortic valve replacement (TAVR) has become the standard therapy for patients with severe symptomatic aortic stenosis and unacceptable high risk for surgical aortic valve replacement. Several different devices for TAVR have been introduced so far, each of them with unique features. AIMS: To analyze our first real-world experience with the second- generation, mechanically expanded, fully repositionable transfemoral Lotus TAVR device (Boston Scientific)...
November 15, 2016: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/27811168/measures-of-right-ventricular-function-after-transcatheter-versus-surgical-aortic-valve-replacement
#13
Lars Grønlykke, Nikolaj Ihlemann, Anh Thuc Ngo, Hans Gustav Hørsted Thyregod, Jesper Kjaergaard, André Korshin, Finn Gustafsson, Christian Hassager, Jens Christian Nilsson, Lars Søndergaard, Hanne Berg Ravn
OBJECTIVES: Describe changes in measures of right ventricular (RV) function in patients treated for aortic stenosis using open-chest surgery (SAVR) or transcatheter treatment (TAVR). METHODS: Patients in the Nordic Aortic Valve Intervention (NOTION) trial were randomized 1:1 to TAVR (n = 114) or SAVR (n = 106). Echocardiography was performed at baseline and 3 and 12 months post-procedure. Tricuspid annular plane systolic excursion (TAPSE) and right ventricular fractional area change (RVFAC) were used as measures of longitudinal and transverse RV contraction...
November 3, 2016: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/27786568/transcatheter-aortic-valve-replacement-perioperative-stroke-and-beyond
#14
Maxim Mokin, Robert Zivadinov, Michael G Dwyer, Ronald M Lazar, L Nelson Hopkins, Adnan H Siddiqui
The definition of stroke has changed over time, from a clinical only-based diagnosis to a more complex classification, including both clinical and imaging-based criteria, in part due to widespread use of magnetic resonance imaging (MRI). The increasing number of transcatheter aortic valve replacement (TAVR) procedures in patients with severe aortic valvular stenosis who are considered high-risk surgical candidates has influenced our view on the diagnosis, interpretation, and significance of perioperative stroke during these procedures...
October 27, 2016: Expert Review of Neurotherapeutics
https://www.readbyqxmd.com/read/27777528/staged-high-risk-percutaneous-coronary-intervention-with-impella-support-after-on-pump-transcatheter-aortic-valve-replacement
#15
Sameer Arora, Amol A Bahekar
The management of concomitant obstructive coronary artery disease and severe aortic stenosis in poor surgical candidates is an evolving topic. Although the typical current practice is to perform percutaneous revascularization before transcatheter aortic valve replacement (TAVR), some data have emerged regarding revascularization after performing TAVR. We present the case of a 90-year-old man with multivessel coronary artery disease who was at prohibitive risk for surgical aortic valve replacement. We first performed TAVR with use of hemodynamic support, then Impella-assisted multivessel percutaneous coronary intervention on the patient's unprotected left main coronary artery...
October 2016: Texas Heart Institute Journal
https://www.readbyqxmd.com/read/27774967/trans-subclavian-aortic-valve-replacement-with-various-bioprosthetic-valves-single-center-experience
#16
Hacı Ahmet Kasapkara, Abdullah Nabi Aslan, Hüseyin Ayhan, Serdal Baştuğ, Hakan Süygün, Telat Keleş, Tahir Durmaz, Engin Bozkurt
OBJECTIVE: Transcatheter aortic valve replacement (TAVR) has been accepted as an alternative to surgery in high risk or inoperable patients with severe aortic stenosis (AS). Although transfemoral approach is the most often preferred means of access, in patients with severe ilio-femoral arteriopathy, other vascular access sites may be required. The aim of the present study was to report our experience with trans-subclavian approach for TAVR using different valve systems. METHODS: Among 273 patients undergoing TAVR between June 2011 and May 2016, 10 patients (mean age: 68...
October 2016: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/27773416/vascular-complications-post-transcatheter-aortic-valve-procedures
#17
REVIEW
Ashvarya Mangla, Saurabh Gupta
Transcatheter aortic valve replacement (TAVR) has rapidly emerged as the standard of care for severe symptomatic aortic stenosis in patients whose comorbidities put them at prohibitive risk for surgical aortic valve replacement (SAVR). Several trials have demonstrated superior outcomes with TAVR compared to medical management alone. TAVR has also shown favorable outcomes in patients at high risk for SAVR. TAVR can be associated with significant vascular complications, which adversely impact outcomes, and operators should be cognizant of their early recognition and appropriate management...
September 2016: Indian Heart Journal
https://www.readbyqxmd.com/read/27767371/transapical-versus-transfemoral-approach-and-risk-of-acute-kidney-injury-following-transcatheter-aortic-valve-replacement-a-propensity-adjusted-analysis
#18
Charat Thongprayoon, Wisit Cheungpasitporn, Narat Srivali, Andrew M Harrison, Wonngarm Kittanamongkolchai, Kevin L Greason, Kianoush B Kashani
BACKGROUND: The aim of this study was to compare the incidence of post-procedural acute kidney injury (AKI) and other renal outcomes in patients undergoing transapical (TA) and transfemoral (TF) approaches for transcatheter aortic valve replacement (TAVR). METHODS: All consecutive adult patients undergoing TAVR for aortic stenosis from 1 January 2008 to 30 June 2014 at a tertiary referral hospital were included. AKI was defined based on Kidney Disease Improving Global Outcomes (KDIGO) criteria...
October 21, 2016: Renal Failure
https://www.readbyqxmd.com/read/27761871/the-crucial-role-of-cardiac-imaging-in-transcatheter-aortic-valve-replacement-tavr-pre-and-post-procedural-assessment
#19
Saif Al-Najafi, Frank Sanchez, Stamatios Lerakis
Transcatheter valve interventions have emerged as one of the most important developments in structural heart disease over the past 20 years. Initially, these interventions were directed at patients with severe aortic stenosis and high surgical risk; however, their applications have extended to involve other native valves' pathologies, degenerated prosthetic valves, as well as patients of lower surgical risk. In this article, we discuss the importance of cardiac imaging in transcatheter aortic valve replacement (TAVR) by exploring the current practices, guidelines, and recommendations with the supporting data...
December 2016: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/27756470/is-surgical-intervention-the-optimal-therapy-for-the-treatment-of-aortic-valve-stenosis-for-patients-with-intermediate-society-of-thoracic-surgeons-risk-score
#20
Mark A Groh, Ivan Diaz, Alan M Johnson, Stephen W Ely, Oliver A Binns, Gerard L Champsaur
BACKGROUND: Patients at intermediate risk (IR) according to The Society of Thoracic Surgeons risk score are today frequently oriented toward the transfemoral aortic valve replacement (TAVR) option. Our goal was to evaluate the best treatment strategies for IR patients with severe aortic stenosis. METHODS: Of a consecutive series of 1,144 surgical aortic valve replacements (AVRs) performed in our institution between 2008 and 2014, we reviewed the early and late outcomes of two different groups: a low-risk (LR) group of 470 patients, and an IR group of 620...
October 15, 2016: Annals of Thoracic Surgery
keyword
keyword
116625
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"