keyword
MENU ▼
Read by QxMD icon Read
search

mitral annulus

keyword
https://www.readbyqxmd.com/read/29143104/left-ventricular-end-diastolic-dimension-and-septal-e-are-predictors-of-cardiac-index-at-rest-while-tricuspid-annular-plane-systolic-excursion-is-a-predictor-of-peak-oxygen-uptake-in-patients-with-pulmonary-hypertension
#1
Yoshihisa Nakano, Naoki Okumura, Shiro Adachi, Shigetake Shimokata, Fumitaka Tajima, Yoshihiro Kamimura, Toyoaki Murohara, Takahisa Kondo
Little is known regarding a correlation of hemodynamics at rest or exercise capacity with echocardiographic parameters in patients with pulmonary hypertension (PH). To clarify these potential correlations, we performed transthoracic echocardiography, right heart catheterization, and cardiopulmonary exercise testing in 53 patients with pulmonary arterial hypertension (PAH) and chronic thromboembolic pulmonary hypertension (CTEPH). Left ventricular end-diastolic dimension (LVDd), early diastolic velocity of the septal mitral annulus (septal e'), tricuspid regurgitation peak gradient (TRPG), and tricuspid annular plane systolic excursion (TAPSE) were significantly correlated with cardiac index (LVDd; r = 0...
November 15, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/29142810/the-role-of-ivabradine-in-diastolic-heart-failure-with-preserved-ejection-fraction-a-doppler-echocardiographic-study
#2
Federico Cacciapuoti, Valerio Massimo Magro, Michele Caturano, Diana Lama, Fulvio Cacciapuoti
Background: Ivabradine (IVA) is effective in patients with coronary artery disease (CAD) or systolic heart failure in sinus rhythm. Its action consists in reducing heart rate (HR) and improving the time of left ventricular (LV) diastolic filling. The aim of this study was to evaluate the effects of IVA added to conventional therapy on patients with diastolic heart failure (DHF) and preserved ejection fraction (HFpEF). Methods: We evaluated 25 patients with DHF in the New York Heart Association (NYHA) Class II-III and sinus rhythm...
October 2017: Journal of Cardiovascular Echography
https://www.readbyqxmd.com/read/29126683/a-game-of-twister-what-3d-tee-rendering-tells-us-about-the-mitral-annulus-during-opcab
#3
EDITORIAL
Michelle Capdeville, Andrej Alfirevic
No abstract text is available yet for this article.
September 27, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29118885/mitral-annular-dynamics-and-left-ventricular-diastole
#4
Angel Lopez-Candales, Dagmar F Hernandez-Suarez, Francisco Lopez Menendez
Background: Though diastolic interrogation of the mitral annulus (MA) using tissue Doppler imaging (TDI) has been quite useful in assessing left ventricular (LV) diastolic function, the relative contribution of the previous cycle MA systolic displacement or velocity components to subsequent LV diastole has not been previously investigated. We therefore sought to determine the association between MA systolic dynamics and LV diastolic function parameters. Methods: For this retrospective study, only complete echocardiograms having good endocardial border resolution of both left atrial (LA) and LV chambers with M-mode (MAPSE) and tissue Doppler of the lateral MA (MA TDI S') as well as complete Doppler data to perform assessment of LV diastole were included in our analysis...
October 2017: Cardiology Research
https://www.readbyqxmd.com/read/29110750/aortic-elasticity-and-carotid-intima-media-thickness-in-children-with-mitral-valve-prolapse
#5
Elif Erolu, Figen Akalın, Nilüfer Çetiner, Berna Şaylan Çevik
Aim We aimed to study the dimensions, systolic and diastolic functions of the left ventricle; dimensions and elasticity of the aorta; and carotid intima-media thickness and flow-mediated dilatation of the brachial artery in mitral valve prolapse. METHODS: The study group consisted of 43 patients (mean age=13.3±3.9) and 42 healthy children (mean age=12.9±3.4). Left ventricular end-diastolic, end-systolic, left atrial diameters, interventricular septum, and left ventricular posterior wall thickness were measured...
November 7, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/29106835/impact-of-mitral-annular-calcium-on-outcomes-after-transcatheter-aortic-valve-implantation
#6
Marco B Ancona, Francesco Giannini, Antonio Mangieri, Damiano Regazzoli, Richard J Jabbour, Akihito Tanaka, Luca Testa, Vittorio Romano, Matteo Longoni, Manuela Giglio, Francesca Besana, Michele Cacucci, Eustachio Agricola, Alaide Chieffo, Ottavio Alfieri, Matteo Montorfano, Antonio Colombo, Azeem Latib
A high prevalence of mitral annular calcium (MAC) is expected in patients undergoing transcatheter aortic valve implantation (TAVI); however, data regarding the prevalence of MAC and impact on risk of cardiovascular events are lacking. To determine the prevalence of MAC and its association with clinical outcomes in patients undergoing TAVI, we retrospectively analyzed 424 patients who underwent transfemoral TAVI from 2007 to 2015 and whose preoperative computed tomography images were available for assessment of MAC...
September 18, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/29100062/thoracic-extra-coronary-calcification-for-the-prediction-of-stroke-the%C3%A2-multi-ethnic-study-of-atherosclerosis
#7
Sina Kianoush, Mahmoud Al Rifai, Miguel Cainzos-Achirica, Mouaz H Al-Mallah, Geoffrey H Tison, Joseph Yeboah, Michael D Miedema, Matthew A Allison, Nathan D Wong, Andrew P DeFilippis, William Longstreth, Khurram Nasir, Matthew J Budoff, Kunihiro Matsushita, Michael J Blaha
BACKGROUND AND AIMS: Atherosclerosis is a systemic disease. We examined whether the cumulative burden of thoracic extra-coronary calcification (ECC) improves prediction of stroke, transient ischemic attack (TIA), and stroke mortality beyond traditional risk factors and coronary artery calcium (CAC). METHODS: We followed a total of 6805 participants (mean age 62.1 ± 10.2 years, 47.2% male) from the Multi-Ethnic Study of Atherosclerosis (MESA) over a median of 12...
October 7, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29092115/cardiac-amyloidosis-associated-with-enlargement-and-functional-impairment-of-the-mitral-annulus-insights-from-the-three-dimensional-speckle-tracking-echocardiographic-magyar-path-study
#8
Attila Nemes, Dóra Földeák, Árpád Kormányos, Péter Domsik, Anita Kalapos, Zita Borbényi, Tamás Forster
BACKGROUND: Cardiac amyloidosis (CA) is a rare condition characterized by the extracellular deposition of amyloidogenic proteins in the heart. The aim of the present study was to compare the size and function of the mitral annulus (MA) between CA patients and age- and gender-matched controls, using three-dimensional speckle-tracking echocardiography (3-D STE). METHODS: The study included 17 patients (mean age 64.2 ± 9.8 years) with CA, whose results were compared to 26 age- and gender-matched healthy controls (mean age 59...
May 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29092114/remodeling-mitral-annuloplasty-ring-concept-with-preserved-dynamics-of-annular-height
#9
Søren N Skov, Diana M Røpcke, Marcell J Tjørnild, Christine Ilkjær, Jonas Rasmussen, Hans Nygaard, J M Hasenkam, Morten O Jensen, Sten L Nielsen
BACKGROUND: The configuration of the native annulus changes from nearly flat in the diastolic phase to saddle-shaped in the systolic phase. The present study was conducted to test a novel remodeling annuloplasty ring with built-in septal-lateral fixation and commissural axial flexibility so as to maintain the change in annular saddle shape. The study aim was to evaluate the in-vivo biomechanical performance of the novel annuloplasty ring, compared with the native valve and a semi-rigid and rigid annuloplasty ring...
May 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29092112/early-activation-of-growth-pathways-in-mitral-leaflets-exposed-to-aortic-regurgitation-new-insights-from-an-animal-model
#10
Ons Marsit, Olivier Royer, Marie-Claude Drolet, Marie Arsenault, Jacques Couet, Stéphane Morin, Robert A Levine, Philippe Pibarot, Jonathan Beaudoin
BACKGROUND: Mitral leaflet enlargement in patients with chronic aortic regurgitation (AR) has been identified as an adaptive mechanism potentially able to prevent functional mitral regurgitation (FMR) in response to left ventricular (LV) dilatation. The timing of valve enlargement is not known, and the related mechanisms are largely unexplored. METHODS: AR was induced in 58 rats, and another 54 were used as sham controls. Animals were euthanized at different time points after AR creation (48 h, one week, and three months), and AR severity, FMR and LV dilatation were assessed using echocardiography...
May 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29081909/geometric-comparison-of-the-mitral-and-tricuspid-valve-annulus-insights-from-three-dimensional-transesophageal-echocardiography
#11
Amgad N Makaryus, Haisam Ismail, John N Makaryus, Dali Fan
AIM: To apply real time three-dimensional transesophageal echocardiography (RT3D TEE) for quantitative and qualitative assessment of the mitral valve annulus (MVA) and tricuspid valve annulus (TVA) in the same patient. METHODS: Our retrospective cohort study examined the MVA and TVA in 49 patients by RT3D TEE. MVA and TVA shape were examined by TEE. The MVA and TVA volume data set images were acquired in the mid esophageal 4-chamber view. The MVA and TVA were acquired separately, with optimization of each for the highest frame rate and image quality...
September 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/29081399/re-visiting-anatomical-macroreentrant-tachycardia-after-atrial-fibrillation-ablation-using-ultra-high-resolution-mapping-implications-for-ablation
#12
Masateru Takigawa, Nicolas Derval, Antonio Frontera, Ruairidh Martin, Seigo Yamashita, Ghassen Cheniti, Konstantinos Vlachos, Nathaniel Thompson, Takeshi Kitamura, Michel Wolf, Gregoire Massoullie, Clair Martin, Nora Al-Jefairi, Sana Amraoui, Josselin Duchateau, Nicolas Klotz, Thomas Pambrun, Arnaud Denis, Frederic Sacher, Hubert Cochet, Hocini Meleze, Michel Haissaguierre, Pierre Jais
BACKGROUND: Anatomical macroreentrant atrial tachycardias (MATs) are conventionally reported to depend on the cavotricuspid isthmus (CTI), the mitral isthmus (MI), or the left atrial roof, and are commonly seen following catheter ablation (CA) for atrial fibrillation (AF). OBJECTIVES: To define the precise circuits of anatomical MAT with ultra-high resolution mapping. METHODS: In 57 patients (mean age, 62 years; 10 female) who developed at least one anatomical MAT, we analyzed 88 MAT circuits including 16 peri-tricuspid, 42 peri-mitral, and 30 roof-dependent circuits, using high-density mapping and entrainment...
October 25, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29072062/morpho-functional-cardiovascular-adaptation-in-hypertensive-patients-two-dimensional-speckle-tracking-echocardiographic-study
#13
Ines P Monte, Chiara DI Benedetto, Filippo A Atanasio, Valentina Losi, Salvatore Licciardi, Corrado Tamburino
BACKGROUND: Twenty-four-hour Blood Pressure (BP) variability is an important predictor of organ damage and cardiovascular events. Although epidemiological data are widely based on evaluation of office (Clinic) BP, 24-hour Ambulatory BP monitoring (ABPM) accurately assess the severity of hypertension to predict cardiovascular events in hypertensive patients, because it more accurately reflects BP load on heart and blood vessels. Conventional transthoracic echocardiography (TTE), such as M-mode and two-dimensional (2D), and more advanced techniques, such as tissue Doppler imaging (TDI) and speckle tracking echocardiography (STE), are used to identify pathological changes of the hypertensive heart disease...
October 25, 2017: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/29049549/transapical-cardioscopic-mitral-annuloplasty-a-short-term-survival-study-in-a-porcine-model
#14
Thang Duc Vu, Min Zin Oo, Duc-Viet Nguyen, Ervin Marquez Ocampo, Yilin Ong, Suganya Cheyyatraivendran-Arularasu, Lian-Kah Ti, Mark A Richards, Theo Kofidis
OBJECTIVES: The transapical approach provides concurrent surgical access to the mitral and the aortic valves, the root of the aorta and the left atrium. We previously showed the feasibility of transapical cardioscopic (TAC) surgery in a non-survival porcine model. However, reproducibility and feasibility of ring implantation using TAC have not been reported. Therefore, in this study, we hypothesized that implantation of a mitral annuloplasty ring can be feasibly and safely carried out endoscopically via the apex of the heart...
August 30, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29044678/preliminary-investigation-of-orally-administered-benazepril-in-horses-with-left-sided-valvular-regurgitation
#15
T Afonso, S Giguère, S A Brown, M H Barton, G Rapoport, M Barba, K A Dembek, R E Toribio, A E Coleman
BACKGROUND: Despite the paucity of data available, orally administered angiotensin-converting enzyme (ACE) inhibitors are empirically used in horses with valvular regurgitation. OBJECTIVE: Evaluate the echocardiographic and hormonal changes in response to oral benazepril in horses with left-sided valvular regurgitation. STUDY DESIGN: Prospective, randomised double-blind, placebo-controlled trial. METHODS: Horses with mitral valve (MR) and/or aortic valve regurgitation (AR) received oral benazepril (n = 6) at a dosage of 1 mg/kg q 12h or a placebo (n = 5) for 28 days...
October 17, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/29020406/new-insights-into-mitral-valve-dystrophy-a-filamin-a-genotype-phenotype-and-outcome-study
#16
Thierry Le Tourneau, Solena Le Scouarnec, Caroline Cueff, Daniel Bernstein, Jan J J Aalberts, Simon Lecointe, Jean Mérot, Jonathan A Bernstein, Toon Oomen, Christian Dina, Matilde Karakachoff, Hubert Desal, Ousama Al Habash, Francesca N Delling, Romain Capoulade, Albert J H Suurmeijer, David Milan, Russell A Norris, Roger Markwald, Elena Aikawa, Susan A Slaugenhaupt, Xavier Jeunemaitre, Albert Hagège, Jean-Christian Roussel, Jean-Noël Trochu, Robert A Levine, Florence Kyndt, Vincent Probst, Hervé Le Marec, Jean-Jacques Schott
Aims: Filamin-A (FLNA) was identified as the first gene of non-syndromic mitral valve dystrophy (FLNA-MVD). We aimed to assess the phenotype of FLNA-MVD and its impact on prognosis. Methods and results: We investigated the disease in 246 subjects (72 mutated) from four FLNA-MVD families harbouring three different FLNA mutations. Phenotype was characterized by a comprehensive echocardiography focusing on mitral valve apparatus in comparison with control relatives...
September 6, 2017: European Heart Journal
https://www.readbyqxmd.com/read/29018165/catheter-ablation-of-the-superolateral-mitral-isthmus-line-a-novel-approach-to-reduce-the-need-for-epicardial-ablation
#17
Tilman Maurer, Andreas Metzner, S Yen Ho, Peter Wohlmuth, Bruno Reißmann, Christian Heeger, Christine Lemes, Kentaro Hayashi, Ardan M Saguner, Johannes Riedl, Christian Sohns, Shibu Mathew, Karl-Heinz Kuck, Erik Wissner, Feifan Ouyang
BACKGROUND: The mitral isthmus is a critical part of perimitral reentrant tachycardia, as well as an important substrate of persistent atrial fibrillation. Deployment of an endocardial mitral isthmus line (MIL) with the end point of bidirectional block may be challenging and often requires additional epicardial ablation within the coronary sinus. METHODS AND RESULTS: The study population comprised 114 patients with perimitral flutter who underwent de novo ablation of an MIL...
October 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28994686/lutembacher-syndrome-dilemma-of-doing-a-tricuspid-annuloplasty
#18
A V Varsha, Gladdy George, Raj Sahajanandan
We discuss the case of a 24-year-old woman with Lutembacher syndrome and severe tricuspid regurgitation (TR) who underwent surgical closure of atrial septal defect and mitral valve replacement without tricuspid annuloplasty despite a severe TR and a large tricuspid annulus on preoperative echo. The pathophysiology of Lutembacher syndrome is discussed below. The utility of perioperative echocardiography in assessing the annular diameter, tenting area and coaptation depth and thus providing insights into the functioning of the tricuspid valve will also be emphasized...
October 2017: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/28993366/mitral-valve-prosthesis-implanted-in-the-atrial-position-in-a-patient-with-extensive-calcification-extending-from-epicardium-to-mitral-annulus
#19
Sana Ghafoor Rahman, Atiq Rehman
No abstract text is available yet for this article.
October 9, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28991057/minimally-invasive-mitral-valve-annuloplasty-with-realignment-of-both-papillary-muscles-for-correction-of-type-iiib-functional-mitral-regurgitation
#20
Evaldas Girdauskas, Lenard Conradi, Eva Karolina Harmel, Hermann Reichenspurner
OBJECTIVE: Pathophysiological background of type IIIb functional mitral regurgitation (FMR) is a progressively increasing distance between papillary muscle tips and mitral annular plane. Standard surgical treatment of such FMR by means of undersized mitral annuloplasty is associated with a high recurrence rate. METHODS: We propose a modified subannular maneuver to correct type IIIb FMR while combining undersized annuloplasty with a controlled realignment of both papillary muscles, thereby fixing the distance between mitral annular plane and papillary muscle tips...
September 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
keyword
keyword
36334
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"