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https://www.readbyqxmd.com/read/28077468/integrated-imaging-of-echocardiography-and-computed-tomography-to-grade-mitral-regurgitation-severity-in-patients-undergoing-transcatheter-aortic-valve-implantation
#1
Philippe J van Rosendael, Suzanne E van Wijngaarden, Vasileios Kamperidis, William K F Kong, Melissa Leung, Nina Ajmone Marsan, Victoria Delgado, Jeroen J Bax
AIMS: Quantitative mitral regurgitation (MR) grading remains challenging. This study evaluated the concept of integrating echocardiography and computed tomography for grading MR severity. Specifically, an integrated parameter was developed that combines the true cross-sectional mitral regurgitant orifice area (ROA) assessed with multi-detector row computed tomography (MDCT) with flow data from echocardiography. METHODS AND RESULTS: Systolic MDCT data of 73 patients, referred for transcatheter aortic valve implantation (TAVI) who also had MR, were evaluated...
January 10, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28077185/rapidly-progressive-mitral-valve-stenosis-in-patients-with-acromelic-dysplasia
#2
Gabriel Rama, Wendy K Chung, Christopher M Cunniff, Usha Krishnan
Acromelic dysplasias are a group of skeletal dysplasias characterised by short-limbed short stature with other distinctive phenotypic features including small hands and feet and stiff joints. Geleophysic dysplasia is an acromelic dysplasia that is associated with characteristic facial features, progressive cardiac valvular thickening, and tracheal stenosis. Owing to overlapping clinical features with other types of short-limbed skeletal dysplasias, it is important to make a precise diagnosis as they have different cardiac morbidity and mortality...
January 12, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28074794/acute-effect-of-treatment-of-mitral-stenosis-on-left-atrium-function
#3
Atooshe Rohani, Shahram Kargar, Afsoon Fazlinejad, Fereshte Ghaderi, Vida Vakili, Homa Falsoleiman, Ramin Khamene Bagheri
AIM: Peak atrial longitudinal strain (PALS) is used to evaluate left atrium (LA) function in patients with mitral stenosis (MS), before and after percutaneous transmitral commissurotomy (PTMC) and mitral valve replacement (MVR). METHODS: Patients with severe symptomatic MS, who were referred to our echocardiographic laboratory for a diagnostic examination before cardiac surgery or PTMC from October of 2014 to October of 2015, were included in the study. RESULT: The peak systolic global LA strain improved post-PTMC (P < 0...
January 2017: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/28070915/mitral-valve-resistance-determines-hemodynamic-consequences-of-severe-rheumatic-mitral-stenosis-and-immediate-outcomes-of-percutaneous-valvuloplasty
#4
Hamidreza Sanati, Reza Zolfaghari, Niloufar Samiei, Yousef Rezaei, Mitra Chitsazan, Ali Zahedmehr, Farshad Shakerian, Reza Kiani, Ata Firouzi, Reza Rezaei Tabrizi
INTRODUCTION: The mitral valve area (MVA) poorly reflects the hemodynamic status of (MS). In this study, we compared the MVA with mitral valve resistance (MVR) with regard to the determination of hemodynamic consequences of MS and the immediate outcomes of percutaneous balloon mitral valvuloplasty (PBMV). METHODS: In a prospective study, 36 patients with severe rheumatic MS with left ventricular ejection fraction (LVEF) >50% were evaluated. They underwent transthoracic echocardiography (TTE) and catheterization...
January 10, 2017: Echocardiography
https://www.readbyqxmd.com/read/28063811/mitral-stenosis-due-to-dynamic-clip-leaflet-interaction-during-the-mitraclip-procedure-case-report-and-review-of-current-knowledge
#5
REVIEW
Gagan D Singh, Thomas W Smith, Jason H Rogers
The goal of MitraClip therapy is to achieve mitral regurgitation reduction without iatrogenic creation of clinically significant MS. In some series, up to 35% of patients are left with mild MS. There are many contributors to the final transmitral gradient achieved in patients undergoing MitraClip therapy. Additionally, there are many modalities used for the intraprocedural assessment of MS with no one modality considered to be the benchmark. We herein describe a case which illustrates the dynamic nature of clip-leaflet interaction, and review intraprocedural techniques for invasively and noninvasively assessing MS...
December 22, 2016: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28050459/cardiovascular-abnormalities-in-egyptian-children-with-mucopolysaccharidoses
#6
Laila Selim, Nehal Abdelhamid, Emad Salama, Amera Elbadawy, Iman Gamaleldin, Mohamed Abdelmoneim, Abeer Selim
INTRODUCTION: The Mucopolysaccharidoses (MPS) are rare inherited metabolic disorders. They are characterized by the progressive systemic deposition of Glycosaminoglycans (GAGs). GAGs accumulate in the myocardium and the cardiac valves. Enzyme Replacement Therapy (ERT) is available for MPS I, II, and VI. However, ERT does not appear to improve cardiac valve disease in patients with valve disease present at the start of ERT. AIM: To evaluate the cardiac involvement in Egyptian children with MPS...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28048492/th-cd-206-07-determination-of-patient-specific-myocardial-mass-at-risk-using-computed-tomography-angiography
#7
L Hubbard, B Ziemer, S Malkasian, J Lipinski, B Sadeghi, H Javan, B Dertli, E Groves, S Molloi
PURPOSE: To evaluate the accuracy of a patient-specific coronary perfusion territory assignment algorithm that uses CT angiography (CTA) and a minimum-cost-path approach to assign coronary perfusion territories on a voxel-by-voxel basis for determination of myocardial mass at risk. METHODS: Intravenous (IV) contrast (370 mg/mL iodine, 25 mL, 7 mL/s) was injected centrally into five swine (35-45 kg) and CTA was performed using a 320-slice CT scanner at 100 kVp and 200 mA...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28043459/repair-of-parachute-and-hammock-valve-in-infants-and-children-early-and-late-outcomes
#8
Eva Maria Delmo Walter, Mariano Javier, Roland Hetzer
Parachute and hammock valves in children remain one of the most challenging congenital malformations to correct. We report our institutional experience with valve-preserving repair techniques and the early and late surgical outcomes in parachute and hammock valves in infants and children. From January 1990-June 2014, 20 infants and children with parachute (n = 12, median age = 2.5 years, range: 2 months-13 years) and hammock (n = 8, median age = 7 months, range: 1 month-14.9 years) valves underwent mitral valve (MV) repair...
July 2016: Seminars in Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28040769/evidence-of-subannular-and-left-ventricular-morphological-differences-in-patients-with-bicuspid-versus-tricuspid-aortic-valve-stenosis-magnetic-resonance-imaging-based-analysis
#9
Kushtrim Disha, Georg Dubslaff, Mina Rouman, Beatrix Fey, Michael A Borger, Alex J Barker, Thomas Kuntze, Evaldas Girdauskas
OBJECTIVES: Prospective analysis of left ventricular (LV) morphological/functional parameters in patients with bicuspid versus tricuspid aortic valve (TAV) stenosis undergoing aortic valve replacement (AVR) surgery. METHODS: A total of 190 consecutive patients with BAV (n = 154) and TAV stenosis (n = 36) (mean age 61 ± 8 years, 65% male) underwent AVR ± concomitant aortic surgery from January 2012 through May 2015. All patients underwent preoperative cardiac magnetic resonance imaging in order to evaluate: (i) left ventricular outflow tract (LVOT) dimensions, (ii) length of anterior mitral leaflet (AML), (iii) end-systolic and end-diastolic LV wall thickness, (iv) LV area, (v) LV end-systolic and end-diastolic diameters (LVESD, LVEDD), (vi) LV end-diastolic and end-systolic volumes (LVEDV, LVESV) and (vii) maximal diameter of aortic root...
December 31, 2016: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28039339/concomitant-mitral-annular-calcification-and-severe-aortic-stenosis-prevalence-characteristics-and-outcome-following-transcatheter-aortic-valve-replacement
#10
Yigal Abramowitz, Yoshio Kazuno, Tarun Chakravarty, Hiroyuki Kawamori, Yoshio Maeno, David Anderson, Zev Allison, Geeteshwar Mangat, Wen Cheng, Ambarish Gopal, Hasan Jilaihawi, Michael J Mack, Raj R Makkar
AIMS: Calcified aortic stenosis (AS) and mitral annular calcification (MAC) have certain similar etiology and pathophysiological mechanisms. MAC is frequently encountered in pre-procedural computed tomography (CT) imaging of patients that undergo transcatheter aortic valve replacement (TAVR), but its prognostic implications for these patients have not been thoroughly investigated. This study sought to evaluate the prevalence of MAC among patients with severe AS and to assess the clinical implications of MAC on these patients during and following TAVR...
December 30, 2016: European Heart Journal
https://www.readbyqxmd.com/read/28031640/rheumatic-heart-disease-predisposing-to-embolic-myocardial-infarction-a-multimodality-imaging-approach
#11
Emanuele Canali, Giuseppe Cannavale, Giulia Conti, Simona Mariani, Fabrizio Proietti
We report a clinical case of a 45-year-old male with a diagnosis of inferior myocardial infarction and previous history of rheumatic fever during his childhood. Coronary angiography demonstrated normal coronary arteries. Transthoracic echocardiogram showed hypokinetic left ventricular inferolateral wall and mitral stenosis; furthermore, speckle tracking analysis revealed reduction of global longitudinal strain involving the inferior wall. A three-dimensional transesophaegeal echocardiography, performed to better characterize the anatomy of the valve and to find possible source of embolic infarct in an enlarged left atrium, showed rheumatic valvular involvement...
December 2016: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/28018816/rapid-deployment-aortic-valve-replacement-after-previous-mechanical-valve-implantation
#12
Markus Schlömicher, Peter Lukas Haldenwang, Vadim Moustafine, Britta Wolf, Peter Zahn, Matthias Bechtel, Justus Thomas Strauch
Recent studies report a reproducible reduction of myocardial ischemic and cardiopulmonary bypass times along with excellent hemodynamics and low rates of paravalvular leakage for rapid-deployment valves. A 68-year-old female patient with aortic stenosis and a mechanical mitral valve which was implanted in 2006 received rapid-deployment aortic valve replacement. The procedure could be performed with a cross-clamp time of 45 minutes and a cardiopulmonary bypass time of 60 minutes. Postoperative course was uncomplicated and the patient was discharged to the referring hospital on postoperative day 8...
December 2016: Thoracic and Cardiovascular Surgeon Reports
https://www.readbyqxmd.com/read/28009962/mitral-valve-diverticulum-presenting-with-severe-mitral-stenosis-case-report
#13
Peregrine G Green, Antony E French, Mario Petrou, Nathan E Manghat, Stephen M Lyen, Badrinathan Chandrasekaran
The case is presented of a non-infectious anterior mitral valve leaflet diverticulum, which appeared as symptomatic mitral stenosis. Unlike previous reports, there was no histological myxomatous degeneration of the valve. To the authors' knowledge, this is the first time a mitral valve diverticulum resulting in severe mitral stenosis has been reported in the literature.
July 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28009944/suture-forces-for-closure-of-transapical-transcatheter-aortic-valve-replacement-a-mathematical-model
#14
Liang Ge, Henrik Haraldsson, Michael D Hope, David Saloner, Julius M Guccione, Mark B Ratcliffe, Elaine E Tseng
BACKGROUND: Transcatheter aortic valve replacement (TAVR) has revolutionized the treatment of severe aortic stenosis in intermediate, high-risk, and inoperable patients. TAVR has multiple access routes, including transfemoral (TF), transapical (TA), direct aortic (DA), axillary, transcarotid, and transcaval. The most commonly applied algorithm is a TF-first approach, where only when patients are unsuitable for TF are alternatives such as TA considered. An infrequent - but dreaded - risk is left ventricular (LV) apical bleeding from tearing or rupture with the TA approach...
July 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28007276/mitral-valve-replacement-with-sapien-3-transcatheter-valve-in-severe-mitral-annular-calcification
#15
Marek Polomsky, Konstantinos P Koulogiannis, Robert M Kipperman, Barry M Cohen, Christopher J Magovern, James P Slater, Steve Xydas, Leo Marcoff, John M Brown
Transcatheter valve implantation in the mitral position with severe calcific mitral stenosis has been described in patients who are at an increased risk for conventional mitral valve surgical procedures. We report the direct deployment of the Sapien 3 valve in the mitral position with severe mitral annular calcification through a sternotomy in an arrested heart in two cases.
January 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28004413/direct-oral-anticoagulant-use-in-nonvalvular-atrial-fibrillation-with-valvular-heart-disease-a-systematic-review
#16
REVIEW
Ryan E Owens, Rajesh Kabra, Carrie S Oliphant
Direct oral anticoagulants (DOACs) are indicated for stroke prevention in patients with nonvalvular atrial fibrillation (NVAF), which, according to the American College of Cardiology/American Heart Association/Heart Rhythm Society atrial fibrillation (AF) guidelines, excludes patients with rheumatic mitral stenosis, a mechanical or bioprosthetic heart valve, or mitral valve repair. However, the data regarding use of DOACs in AF patients with other types of valvular heart disease (VHD) are unclear. We aimed to summarize and evaluate the literature regarding the safety and efficacy of DOAC use in NVAF patients with other types of VHD...
December 22, 2016: Clinical Cardiology
https://www.readbyqxmd.com/read/27998844/transcatheter-implantation-of-aortic-valve-prostheses-into-degenerated-mitral-valve-bioprostheses-and-failed-annuloplasty-rings-outcomes-according-to-access-route-and-mitral-valve-academic-research-consortium-mvarc-criteria
#17
Christian Frerker, Tobias Schmidt, Michael Schlüter, Ralf Bader, Jury Schewel, Dimitry Schewel, Thomas Thielsen, Felix Kreidel, Hannes Alessandrini, Friederike Schlingloff, Ulrich Schäfer, Karl-Heinz Kuck
AIMS: The study sought to assess outcomes of transcatheter mitral valve-in-valve implantation (TMVIV) for degenerated bioprostheses and transcatheter mitral valve-in-ring implantation (TMVIR) for failed annuloplasty rings according to access route and the Mitral Valve Academic Research Consortium (MVARC) criteria. METHODS AND RESULTS: Twenty-four patients (72±13 years; eight men [33%]) underwent TMVIV (n=14) or TMVIR (n=10) for mitral regurgitation (MR; n=17) or stenosis (n=7) using balloon-expandable bioprostheses...
December 20, 2016: EuroIntervention
https://www.readbyqxmd.com/read/27992388/identification-of-severe-mitral-stenosis-using-real-time-three-dimensional-transesophageal-echocardiography-during-a-left-ventricular-assist-device-insertion-erratum
#18
(no author information available yet)
No abstract text is available yet for this article.
January 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27989097/left-atrial-reservoir-function-in-symptomatic-versus-asymptomatic-patients-with-moderate-mitral-stenosis
#19
Maha El Sebaie, Abd El Fatah Ferer, Hasam El Shaer, Possy Hamed
No abstract text is available yet for this article.
January 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/27989091/transcatheter-valve-in-valve-implantation-in-a-degenerated-mitral-bioprosthesis-using-a-trans-septal-anterograde-approach-and-3-d-transesophageal-echocardiography-guidance
#20
Piotr N Rudzinski, Zofia Dzielinska, Adam Witkowski, Marek Konka, Kulej-Lyko Katarzyna, Marcin Demkow
Degenerated and dysfunctional prosthetic valves are usually replaced surgically. However, repeated cardiac surgery can cause prohibitive risk, especially in patients with many associated co-morbidities. Transcatheter valve-in-valve implantation (TVIV) is a novel, technically very challenging, but less invasive alternative treatment for patients with unacceptably high surgical risk of degenerated prosthetic valves. The method is attractive because it takes advantage of the presence of the degenerated prosthesis, which serves as an anchoring zone...
January 2016: Journal of Heart Valve Disease
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