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https://www.readbyqxmd.com/read/28648025/-comparison-of-aortic-valve-dysfunction-and-ascending-aorta-dimension-between-patients-with-different-bicuspid-aortic-valve-morphology
#1
X S Ren, Y T Yu, K Liu, Z H Hou, Y Gao, W H Yin, B Lyu
Objective: To compare the characteristics of aortic valve dysfunction and ascending aorta dimension in patients with different bicuspid aortic valve (BAV) morphology. Methods: A total of 197 patients who underwent aortic valve replacement between April 2014 and March 2015 and were diagnosed with BAV by pathology were included, and their clinical data were retrospectively analyzed. Patients were divided into raphe(+) group(109 cases) and raphe(-) group(88 cases) according to the presence or absence of raphe, and L-R group(fusion of left and right cusp, 125 cases) and L/R-N group(fusion of left or right and noncoronary cusp, 72 cases) according to fusion type of the cusps...
June 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28646403/routine-ct-angiography-to-detect-severe-coronary-artery-disease-prior-to-transcatheter-aortic-valve-replacement
#2
S Chava, G Gentchos, A Abernethy, B Leavitt, E Terrien, H L Dauerman
Patients undergoing TAVR undergo routine CT angiography (CTA) to assess aorto-iliac pathology and annular dimensions. While coronary CTA may exclude severe CAD in younger patients, its efficacy in defining CAD severity prior to TAVR may be limited. We retrospectively studied 50 consecutive patients undergoing both invasive coronary angiography (ICA) and routine pre-TAVR CTA. Severe CAD was defined as ≥50% stenosis by quantitative coronary angiography and compared to a blinded CTA visual estimation of ≥50% stenosis...
June 23, 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28643860/subcutaneous-defibrillators-for-dialysis-patients
#3
REVIEW
Tushar J Vachharajani, Loay Salman, Eric J Costanzo, Sushil K Mehandru, Mayurkumar Patel, Dawn M Calderon, Roy O Mathew, Mandeep S Sidhu, Arif Asif
Defibrillation can be successfully provided by the subcutaneous implantable cardioverter defibrillator (ICD) without the leads. In contrast, traditional ICDs require leads that can cause central venous stenosis, lead-induced endocarditis, and carry the risk of tricuspid regurgitation by valve adhesion, perforation, coaptation interference, or entanglement. Central venous stenosis, infection, and tricuspid regurgitation are all critically important considerations in hemodialysis patients. Recent reports are supporting the use of subcutaneous ICDs in renal patients maintained on long-term hemodialysis...
June 23, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/28643385/the-effect-of-balloon-valvuloplasty-for-bioprosthetic-valve-stenosis-at-pulmonary-positions
#4
Eun Young Choi, Jinyoung Song, Heirim Lee, Chang Ha Lee, Jun Huh, I-Seok Kang, Ji Hyuk Yang, Tae Gook Jun
BACKGROUND: Balloon dilatation of a bioprosthetic valve in the pulmonary position could be performed to delay valve replacement. We proposed to identify the long-term effectiveness of such a procedure. METHODS: We reviewed the medical records of 49 patients who underwent balloon valvuloplasty between January 2000 and December 2015. The primary goal was to determine the time interval until the following surgical or catheter intervention. RESULTS: The mean age at bioprosthetic valve insertion was 5...
June 23, 2017: Congenital Heart Disease
https://www.readbyqxmd.com/read/28642994/cardiovascular-magnetic-resonance-imaging-to-assess-myocardial-fibrosis-in-valvular-heart-disease
#5
Tomaz Podlesnikar, Victoria Delgado, Jeroen J Bax
The left ventricular (LV) remodeling process associated with significant valvular heart disease (VHD) is characterized by an increase of myocardial interstitial space with deposition of collagen and loss of myofibers. These changes occur before LV systolic function deteriorates or the patient develops symptoms. Cardiovascular magnetic resonance (CMR) permits assessment of reactive fibrosis, with the use of T1 mapping techniques, and replacement fibrosis, with the use of late gadolinium contrast enhancement...
June 22, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28641394/reoperative-analysis-after-mitral-valve-repair-with-glutaraldehyde-treated-autologous-pericardium
#6
Naoto Fukunaga, Ryuzo Sakata, Tadaaki Koyama
OBJECTIVES: We reviewed reoperations following mitral valve repair (MVR) that used glutaraldehyde-treated autologous pericardium for mitral regurgitation (MR) to analyse the durability and risk factors for reoperation. METHODS: We retrospectively analysed 144 patients (mean age 57.9 years) who underwent MVR using glutaraldehyde-treated pericardium from March 1992 to December 2011. A total of 19 reoperations were necessary during the follow-up period (mean 6.9 years)...
June 21, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28640443/pathophysiology-of-aortic-stenosis-and-mitral-regurgitation
#7
Gianluca L Perrucci, Marco Zanobini, Paola Gripari, Paola Songia, Bayan Alshaikh, Elena Tremoli, Paolo Poggio
The global impact of the spectrum of valve diseases is a crucial, fast-growing, and underrecognized health problem. The most prevalent valve diseases, requiring surgical intervention, are represented by calcific and degenerative processes occurring in heart valves, in particular, aortic and mitral valve. Due to the increasing elderly population, these pathologies will gain weight in the global health burden. The two most common valve diseases are aortic valve stenosis (AVS) and mitral valve regurgitation (MR)...
June 18, 2017: Comprehensive Physiology
https://www.readbyqxmd.com/read/28639223/imaging-of-left-ventricular-hypertrophy-a-practical-utility-for-differential-diagnosis-and-assessment-of-disease-severity
#8
REVIEW
Toru Kubo, Hiroaki Kitaoka
PURPOSE OF REVIEW: Left ventricular hypertrophy (LVH) is often encountered in clinical practice, and it is a risk factor for cardiac mortality and morbidity. Determination of the etiology and disease severity is important for the management of patients with LVH. The aim of this review is to show the remarkable progress in cardiac imaging and its importance in clinical practice. RECENT FINDINGS: This review focuses on clinical features and characteristic cardiac imaging in LVH caused by various diseases including hypertension, aortic valve stenosis, hypertrophic cardiomyopathy, and secondary cardiomyopathies...
August 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/28636718/trends-and-outcomes-of-off-label-use-of-transcatheter-aortic-valve-replacement-insights-from-the-ncdr-sts-acc-tvt-registry
#9
Ravi S Hira, Sreekanth Vemulapalli, Zhuokai Li, James M McCabe, John S Rumsfeld, Samir R Kapadia, Mahboob Alam, Hani Jneid, Creighton Don, Mark Reisman, Salim S Virani, Neal S Kleiman
Importance: Transcatheter aortic valve replacement (TAVR) was approved by the US Food and Drug Administration for severe aortic stenosis in patients who cannot undergo surgery and for patients at high operative risk. Use of TAVR for off-label indications has not been previously reported. Objective: To evaluate patterns and adverse outcomes of off-label use of TAVR in US clinical practice. Design, Setting and Participants: Patients receiving commercially funded TAVR in the United States are included in the Transcatheter Valve Therapy Registry...
June 21, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/28636475/surgical-aortic-valve-replacement-for-stenosis-of-tavi-device
#10
M Sooknunden, M A Radermecker, J O Defraigne, Vincent Tchana-Sato
We here report the case of a stenosis of the CoreValve(®) system due to reduced mobility of prosthesis cusps for which a surgical replacement of the aortic valve was proposed. The exact mechanism leading to this impaired mobility of the leaflets is yet to be determined. We also underline the fact a transcatheter aortic valve implantation (TAVI) device can be replaced by a surgical replacement without excessive operative risks despite the patient being initially considered as high-risk.
March 1, 2017: Acta Chirurgica Belgica
https://www.readbyqxmd.com/read/28633375/final-5-year-clinical-and-echocardiographic-results-for-treatment-of-severe-aortic-stenosis-with-a-self-expanding-bioprosthesis-from-the-advance-study
#11
Ulrich Gerckens, Corrado Tamburino, Sabine Bleiziffer, Johan Bosmans, Peter Wenaweser, Stephen Brecker, Jia Guo, Axel Linke
Aims: The ADVANCE study was designed to evaluate the safety and effectiveness of transcatheter aortic valve implantation (TAVI) with a self-expanding bioprosthesis in real-world patients with symptomatic, severe aortic stenosis at high surgical risk for valve replacement. Methods and results: Study participants were enrolled from 44 experienced centres in 12 countries. Patient eligibility, treatment approach, and choice of anaesthesia were determined by the local Heart Team...
June 13, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28633264/rapidly-progressive-bioprosthetic-aortic-valve-stenosis-due-to-bartonella-species-endocarditis
#12
Kathy Schnitzer, Zafrir Or, Shtiwi Sawaed, Erez Sharoni, Naiel Bisharat
Rapid progression of valvular stenosis in the setting of infective endocarditis is extremely rare. Here we describe a patient with Bartonella endocarditis on a bioprosthetic aortic valve that caused rapidly progressive aortic stenosis without regurgitation. At operation the bioprosthetic valve was severely fibrotic and calcified, with markedly thickened and distorted leaflets and circular partial detachment from the aortic ring. The patient underwent aortic root replacement with aortic bioprosthesis and aortic grafting with reimplantation of the coronary ostia...
July 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28631207/qrs-width-as-a-predictor-of-right-ventricular-remodeling-after-percutaneous-pulmonary-valve-implantation
#13
C Paech, I Dähnert, F T Riede, R Wagner, T Kister, K Nieschke, F Wagner, R A Gebauer
Recent data showed a right ventricular dyssynchrony in patients with tetralogy of Fallot (TOF). Percutaneous pulmonary valve implantation (PPVI) has become an important procedure to treat a pulmonary stenosis and/or regurgitation of the right ventricular outflow tract in these patients. Despite providing good results, there is still a considerable number of nonresponders to PPVI. The authors speculated that electrical dysfunction of the right ventricle plays an underestimated role in the outcome of patients after PPVI...
June 19, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28629660/characterization-and-risk-factors-for-aortic-dilatation-in-pediatric-patients-with-bicuspid-aortic-valve
#14
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/28625366/feasibility-of-transcatheter-aortic-valve-replacement-in-low-risk-patients-with-symptomatic-severe-aortic-stenosis-rationale-and-design-of-the-low-risk-tavr-lrt-study
#15
Toby Rogers, Rebecca Torguson, Roshni Bastian, Paul Corso, Ron Waksman
BACKGROUND: Safety and effectiveness of transcatheter aortic valve replacement (TAVR) in low-risk patients with symptomatic severe aortic stenosis have not yet been established. HYPOTHESIS: Transcatheter aortic valve replacement is feasible in patients with symptomatic severe aortic stenosis and low risk for surgical aortic valve replacement. DESIGN: The LRT study is the first US Food and Drug Administration-approved Investigational Device Exemption prospective multicenter feasibility trial of TAVR in low-risk patients...
July 2017: American Heart Journal
https://www.readbyqxmd.com/read/28624411/incremental-prognostic-utility-of-left-ventricular-global-longitudinal-strain-in-asymptomatic-patients-with-significant-chronic-aortic-regurgitation-and-preserved-left-ventricular-ejection-fraction
#16
Alaa Alashi, Amgad Mentias, Amjad Abdallah, Ke Feng, A Marc Gillinov, L Leonardo Rodriguez, Douglas R Johnston, Lars G Svensson, Zoran B Popovic, Brian P Griffin, Milind Y Desai
OBJECTIVES: We sought to examine the prognostic utility of left ventricular (LV) global longitudinal strain (GLS) in asymptomatic patients with ≥III+ aortic regurgitation (AR), an indexed LV end-systolic dimension of <2.5 cm/m(2), and preserved left ventricular ejection fraction (LVEF). BACKGROUND: Management of asymptomatic patients with severe chronic AR and preserved LVEF is challenging and is typically based on LV dimensions. METHODS: We studied 1,063 such patients (53 ± 16 years; 77% men) seen between 2003 and 2010 (excluding those with symptoms, obstructive coronary artery disease, acute AR/dissection, aortic/mitral stenosis, more than moderate mitral regurgitation, and previous cardiac surgery)...
June 9, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28623496/association-between-flow-skewness-and-aortic-dilatation-in-patients-with-aortic-stenosis
#17
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/28623173/outcomes-of-transcatheter-and-surgical-aortic-valve-replacement-in-patients-on-maintenance-dialysis
#18
Fahad Alqahtani, Sami Aljohani, Khaled Boobes, Elad Maor, Assem Sherieh, Charanjit S Rihal, David R Holmes, Mohamad Alkhouli
BACKGROUND: the introduction of transcatheter aortic valve replacement (TAVR) expanded definitive therapy of aortic stenosis to many high-risk patients, but it has not been fully evaluated in the dialysis population. OBJECTIVES: We aimed to evaluate the current trend and in-hospital outcome of Surgical aortic valve replacement (SAVR) and TAVR in the dialysis population. METHODS: Severe aortic stenosis patients on maintenance dialysis who underwent SAVR or TAVR in the Nationwide Inpatient Sample database (NIS) from January 1, 2005, through December 31, 2014, were included in our comparative analysis...
June 13, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/28623117/open-heart-surgery-does-not-increase-the-incidence-of-ipsilateral-ischemic-stroke-in-patients-with-asymptomatic-severe-carotid-stenosis
#19
John E Castaldo, Hussam A Yacoub, Yuebing Li, Hope Kincaid, Donna Jenny
BACKGROUND AND PURPOSE: We evaluated the incidence of perioperative stroke following the institution's 2007 practice change of discontinuing combined carotid endarterectomy and open heart surgery (OHS) for patients with severe carotid stenosis. METHODS: In this retrospective cohort study, we compared 113 patients undergoing coronary artery bypass grafting, aortic valve replacement, or both from 2007 to 2011 with data collected from 2001 to 2006 from a similar group of patients...
June 13, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28622047/repositionable-and-retrievable-lotus-valve-system-for-the-treatment-of-bicuspid-aortic-stenosis-is-it-time-to-treat-all-valves
#20
Roberto Nerla, Fausto Castriota, Antonio Micari, Estevao de Campos Martins, Alberto Cremonesi
INTRODUCTION: For a long time, a bicuspid valve has been considered a contraindication to transcatheter aortic valve implantation (TAVI) due to worse procedural results. Currently available technologies are changing the scenario, with initial experiences reporting much better results with second-generation devices. AREAS COVERED: This review will analyze the risk and potential pitfalls of TAVI on bicuspid valves and will try ascertain how the use of a new-generation fully repositionable device, the Lotus Valve System (LVS), could improve procedural and clinical results in bicuspid anatomies...
June 16, 2017: Expert Review of Medical Devices
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