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https://www.readbyqxmd.com/read/28091872/impact-of-revascularization-of-coronary-chronic-total-occlusion-on-left-ventricular-function-and-electrical-stability-analysis-by-speckle-tracking-echocardiography-and-signal-averaged-electrocardiogram
#1
Yohei Sotomi, Atsunori Okamura, Katsuomi Iwakura, Motoo Date, Hiroyuki Nagai, Tomohiro Yamasaki, Yasushi Koyama, Koichi Inoue, Yasushi Sakata, Kenshi Fujii
The present study aimed to assess the mechanisms of effects of percutaneous coronary intervention (PCI) for chronic total occlusion (CTO) from two different aspects: left ventricular (LV) systolic function assessed by two-dimensional speckle tracking echocardiography (2D-STE) and electrical stability evaluated by late potential on signal-averaged electrocardiogram (SAECG). We conducted a prospective observational study with consecutive CTO-PCI patients. 2D-STE and SAECG were performed before PCI, and after 1-day and 3-months of procedure...
January 13, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28070866/finite-element-analysis-of-patient-specific-mitral-valve-with-mitral-regurgitation
#2
Thuy Pham, Fanwei Kong, Caitlin Martin, Qian Wang, Charles Primiano, Raymond McKay, John Elefteriades, Wei Sun
Functional mitral regurgitation (FMR) is a significant complication of left ventricular dysfunction and strongly associated with a poor prognosis. In this study, we developed a patient-specific finite element (FE) model of the mitral apparatus in a FMR patient which included: both leaflets with thickness, annulus, chordae tendineae, and chordae insertions on the leaflets and origins on the papillary muscles. The FE model incorporated human age- and gender-matched anisotropic hyperelastic material properties, and MV closure at systole was simulated...
January 9, 2017: Cardiovascular Engineering and Technology
https://www.readbyqxmd.com/read/28063137/caseous-calcification-of-the-mitral-annulus-not-always-a-benign-condition
#3
Jerrold Spapen, Benjamin Scott
No abstract text is available yet for this article.
January 6, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28045338/systolic-mitral-annulus-velocity-is-a-sensitive-index-for-changes-in-left-ventricular-systolic-function-during-inotropic-therapy-in-patients-with-acute-heart-failure
#4
Trygve Husebye, Jan Eritsland, Reidar Bjørnerheim, Geir Ø Andersen
BACKGROUND: Echocardiography is recommended for assessment of left ventricular systolic function in patients with acute heart failure but few randomised trials have validated techniques like tissue Doppler (TDI) and speckle tracking (STE) in patients with acute heart failure following ST-elevation myocardial infarction. METHODS: This was a substudy from the LEAF (LEvosimendan in Acute heart Failure following myocardial infarction) trial (NCT00324766 ), which randomised 61 patients developing acute heart failure, including cardiogenic shock, within 48 hours after ST-elevation myocardial infarction, double-blind to a 25-hour infusion of levosimendan or placebo...
January 1, 2017: European Heart Journal. Acute Cardiovascular Care
https://www.readbyqxmd.com/read/28044989/surgical-mitral-valve-replacement-with-melody-valve-in-infants-and-children-the-italian-experience
#5
Alessandro Frigiola, Francesca Romana Pluchinotta, Antonio Saracino, Alessandro Giamberti, Carmelo Arcidiacono, Luciane Piazza, Matteo Reali, Gianfranco Butera, Alessandro Varrica, Mario Carminati
AIMS: Paediatric patients with mitral valve (MV) disease have limited options for prosthetic MV replacement. Based on a long experience with the stented bovine jugular vein graft (Melody Valve) in the right ventricular outflow tract, we tested the use of the Melody Valve as a surgical implant in the mitral position in patients with congenital mitral disease. METHODS AND RESULTS: Eight patients, age 3 months to 6.2 years, with congenital MV dysplasia had undergone Melody valve implantation in mitral position between March 2014 and October 2015...
January 3, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28041699/impact-of-interventional-edge-to-edge-repair-on-mitral-valve-geometry
#6
Robert Schueler, Sarah Kaplan, Charlotte Melzer, Can Öztürk, Marcel Weber, Jan-Malte Sinning, Armin Welz, Nikos Werner, Georg Nickenig, Christoph Hammerstingl
BACKGROUND/OBJECTIVES: The acute and long-term effects of interventional edge-to-edge repair on the mitral valve (MV) geometry are unclear. We sought to assess MV-annular geometry and the association of changes in MV-diameters with functional response one year after MitraClip implantation. METHODS: Consecutive patients (n=84; age 81.2±8.3years, logistic EuroSCORE 21.7±17.9%) with symptomatic moderate-to-severe mitral regurgitation (MR) underwent MitraClip-procedure...
December 21, 2016: International Journal of Cardiology
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
#7
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/28024925/the-evolution-of-diastolic-function-during-liver-transplantation
#8
Pauline Devauchelle, Zoé Schmitt, Aurélie Bonnet, Serge Duperret, Jean-Paul Viale, Jean-Yves Mabrut, Frédéric Aubrun, Mathieu Gazon
INTRODUCTION: The peroperative management of liver transplantation is still associated with many cardio-circulatory complications in which diastolic dysfunction may play a contributive role. Transoesophageal echocardiography is a monitoring device commonly used in liver transplantation allowing diastolic function assessment. METHODS: We prospectively analysed the peroperative transoesophageal echocardiography recordings of 40 patients undergoing liver transplantation in order to describe changes in diastolic function at different steps of the surgery...
December 23, 2016: Anaesthesia, Critical Care & Pain Medicine
https://www.readbyqxmd.com/read/28009953/mitral-valve-re-repair-in-an-adult-patient-having-undergone-mitral-ring-annuloplasty-at-five-years-of-age
#9
Jong Hun Kim, Tae Youn Kim, Jong Bum Choi, Ja Hong Kuh
In adult patients who have undergone mitral annuloplasty with a rigid ring at a young age, the mitral valve may ultimately deform and demonstrate insufficient growth because the valve annulus is fixed to the ring. Mitral valve re-repair, following this scenario, was performed for mitral stenoinsufficiency in a 26-year-old female patient who had undergone mitral annuloplasty with a rigid ring at the age of five years. The valve re-repair procedure consisted of decalcification and stripping of the anterior leaflet and annulus, posterior leaflet augmentation using an elliptical autologous pericardial patch, and a posterior strip annuloplasty sparing the anterior annulus and commissures...
July 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28004210/exuberant-mitral-annular-calcification
#10
Melissa A Lyle, David F Snipelisky, Niti R Aggarwal, Fletcher A Miller, Nandan S Anavekar
Mitral annular calcification (MAC) is a chronic, progressive process characterized by calcium deposition on the mitral valve annulus. There is no current grading system to relay the severity of MAC. The primary purpose of this study was to investigate the extreme end of the severity spectrum in order to describe "exuberant mitral annular calcification", and a retrospective chart review of all patients with exuberant mitral annulus calcification evaluated at Mayo Clinic Rochester between January 1996 and December 2014 was performed...
December 22, 2016: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/27995395/mitral-valve-chordae-tendineae-topological-and-geometrical-characterization
#11
Amir H Khalighi, Andrew Drach, Charles H Bloodworth, Eric L Pierce, Ajit P Yoganathan, Robert C Gorman, Joseph H Gorman, Michael S Sacks
Mitral valve (MV) closure depends upon the proper function of each component of the valve apparatus, which includes the annulus, leaflets, and chordae tendineae (CT). Geometry plays a major role in MV mechanics and thus highly impacts the accuracy of computational models simulating MV function and repair. While the physiological geometry of the leaflets and annulus have been previously investigated, little effort has been made to quantitatively and objectively describe CT geometry. The CT constitute a fibrous tendon-like structure projecting from the papillary muscles (PMs) to the leaflets, thereby evenly distributing the loads placed on the MV during closure...
December 19, 2016: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/27990181/risk-of-cerebral-embolization-with-caseous-calcification-of-the-mitral-annulus-review-article
#12
Charles A Dietl, Christopher M Hawthorn, Veena Raizada
BACKGROUND: Caseous calcification of the mitral annulus (CCMA) is believed to have a benign prognosis. Several authors have recommended conservative management in asymptomatic patients. However, the prevalence of cerebrovascular events (CVE) in patients with CCMA has never been evaluated before. The aims of this study are to investigate whether patients with CCMA are at increased risk of cerebral embolization, and to determine whether elective surgical resection of CCMA should be considered to prevent a cardioembolic stroke...
2016: Open Cardiovascular Medicine Journal
https://www.readbyqxmd.com/read/27989087/the-double-orifice-valve-technique-to-treat-tricuspid-valve-incompetence
#13
Roland Hetzer, Mariano Javier, Eva Maria Delmo Walter
BACKGROUND: A straightforward tricuspid valve (TV) repair technique was used to treat either moderate or severe functional (normal valve with dilated annulus) or for primary/organic (Ebstein's anomaly, leaflet retraction/tethering and chordal malposition/tethering, with annular dilatation) TV incompetence, and its long-term outcome assessed. METHODS: A double-orifice valve technique was employed in 91 patients (mean age 52.6 ± 23.2 years; median age 56 years; range: 0...
January 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/27989043/distant-position-of-chordae-from-coaptation-causes-mitral-regurgitation-in-patients-with-atrial-fibrillation
#14
Yuji Itabashi, Hirotsugu Mihara, Javier Berdejo, Hiroto Utsunomiya, Takahiro Shiota
BACKGROUND: The study aim was to investigate the mechanism of mitral regurgitation (MR) in lone atrial fibrillation (AF) patients using three-dimensional (3D) transesophageal echocardiography (TEE). METHODS: A retrospective analysis was conducted of 64 patients with AF and a normal left ventricle, and without prolapse of the mitral valve. Among these patients, significant MR was not identified in 33 cases (AF+MR- group) but was present in 31 cases (AF+MR+ group)...
May 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/27986642/anatomic-characteristics-of-the-mitral-isthmus-region-the-left-atrial-appendage-isthmus-as-a-possible-ablation-target
#15
Mateusz K Hołda, Mateusz Koziej, Jakub Hołda, Kamil Tyrak, Katarzyna Piątek, Filip Bolechała, Wiesława Klimek-Piotrowska
The mitral isthmus is a part of the postero-inferior area of the lateral left atrial wall located between the mitral annulus and the left inferior pulmonary vein ostium. Linear ablation lesions are created within the mitral isthmus for the invasive treatment of left atrial arrhythmias. However, the anatomy of this region is not fully understood. The aim of this study has been to provide a detailed morphometric description of the mitral isthmus region and to propose another possible isthmus within the investigated heart area that may serve as a potential new ablation target...
December 13, 2016: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/27976547/invasive-hemodynamic-assessment-during-mitra-clip-implantation-should-it-be-the-new-standard
#16
Mehmet Cilingiroglu, Konstantinos Marmagkiolis
Transesophageal echocardiography (TEE) assessment after MitraClip implantation is limited by unequal orifices and jets, eccentric regurgitation, and the acute change of the annulus geometry. Periprocedural real-time invasive hemodynamic assessment of the mitral valve function requires experience in hemodynamic monitoring interpretation. However, it provides excellent accuracy as it does not take into account the changes of the mitral apparatus geometry and jet direction after MitraClip placement. While we seek to expand indications of Mitraclip to other patient subgroups, we should consider routine ancillary invasive hemodynamic assessment, in order to optimize our understanding, procedural results...
December 2016: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/27965511/assessment-of-atrial-conduction-times-in-prediabetic-patients-with-coronary-artery-disease
#17
Mahdokht Rezaei, Ali Hosseinsabet
OBJECTIVE: Prediabetes is a dysglycemic state and is associated with subtle myocardial injury and dysfunction. We evaluated atrial conduction times (ACTs) and atrial electromechanical delays (EMDs) in prediabetic patients with coronary artery disease (CAD). METHODS: In the present study, we recruited 128 consecutive patient candidates (40 euglycemic, 48 prediabetic, and 40 diabetic patients) for coronary artery bypass grafting. ACTs were measured using tissue Doppler imaging (TDI)...
December 1, 2016: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/27959898/diastolic-left-ventricular-function-in-relation-to-urinary-and-serum-collagen-biomarkers-in-a-general-population
#18
Zhen-Yu Zhang, Susana Ravassa, Wen-Yi Yang, Thibault Petit, Martin Pejchinovski, Petra Zürbig, Begoña López, Fang-Fei Wei, Claudia Pontillo, Lutgarde Thijs, Lotte Jacobs, Arantxa González, Thomas Koeck, Christian Delles, Jens-Uwe Voigt, Peter Verhamme, Tatiana Kuznetsova, Javier Díez, Harald Mischak, Jan A Staessen
Current knowledge on the pathogenesis of diastolic heart failure predominantly rests on case-control studies involving symptomatic patients with preserved ejection fraction and relying on invasive diagnostic procedures including endomyocardial biopsy. Our objective was to gain insight in serum and urinary biomarkers reflecting collagen turnover and associated with asymptomatic diastolic LV dysfunction. We randomly recruited 782 Flemish (51.3% women; 50.5 years). We assessed diastolic LV function from the early and late diastolic peak velocities of the transmitral blood flow and of the mitral annulus...
2016: PloS One
https://www.readbyqxmd.com/read/27941014/myocardial-crystallization-arising-from-a-mitral-annulus-calcification
#19
Alberto Cecconi, Ana Bustos García de Castro, José Juan Gómez de Diego
No abstract text is available yet for this article.
December 9, 2016: European Heart Journal
https://www.readbyqxmd.com/read/27933393/prevalence-and-prognostic-impact-of-left-sided-valve-thickening-in-systemic-light-chain-amyloidosis
#20
Dania Mohty, Sarah Pradel, Julien Magne, Bahaa Fadel, Cyrille Boulogne, Vincent Petitalot, Safaa Raboukhi, Nicole Darodes, Thibaud Damy, Victor Aboyans, Arnaud Jaccard
BACKGROUND: Left heart valve thickening (LVT) was described in patients with light-chain amyloidosis (AL). This phenomenon reflects likely infiltration of the valve by amyloid proteins. However, the prevalence of LVT and its prognostic value have not been investigated in patients with AL. METHODS AND RESULTS: Comprehensive transthoracic echocardiography was performed at baseline in 150 patients [median age 68 (33-87) years; 59% male] with confirmed AL. The presence of abnormal mitral and/or aortic valve thickening (>3 mm) was assessed in all included patients...
December 8, 2016: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
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