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Dimensional ratios of the mitral valve

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https://www.readbyqxmd.com/read/29222864/effects-of-cardiac-resynchronization-therapy-after-inferior-myocardial-infarction-on-secondary-mitral-regurgitation-and-mitral-valve-geometry
#1
Christos G Mihos, Evin Yucel, Romain Capoulade, Mary P Orencole, Gaurav A Upadhyay, Orlando Santana, Jagmeet P Singh, Michael H Picard
BACKGROUND: The effects of cardiac resynchronization therapy (CRT) on secondary mitral regurgitation (MR), and mitral valve (MV) and left ventricular (LV) geometry, in patients with prior inferior myocardial infarction is not clearly defined. We assessed these outcomes utilizing 2-dimensional echocardiography, and analyzed echocardiographic geometric variables that may correlate with follow-up MR severity. METHODS: Between 2009 and 2012, 229 CRT were implanted. Twenty-two had prior inferior myocardial infarction, ≥ mild MR at baseline, and serial echocardiography...
December 9, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29205484/subclinical-left-ventricular-systolic-and-diastolic-dysfunction-in-type-1-diabetic-children-and-adolescents-with-good-metabolic-control
#2
Tamer Yoldaş, Utku Arman Örün, Elif Sagsak, Zehra Aycan, Özkan Kaya, Senem Özgür, Selmin Karademir
OBJECTIVE: Cardiac dysfunction is a well-known consequence of diabetes mellitus. This study was designed to assess whether type 1 diabetic children and adolescents with good metabolic control have early echocardiographic signs of subclinical left ventricular dysfunction and whether diabetes duration has any influence, using conventional and nonconventional echocardiographic tools. METHODS: A total of 100 patients with type 1 diabetes mellitus and 80 gender- and age-matched healthy controls were included...
December 3, 2017: Echocardiography
https://www.readbyqxmd.com/read/29116972/low-cardiac-output-syndrome-after-adult-cardiac-surgery-predictive-value-of-peak-systolic-global-longitudinal-strain
#3
Philippe Amabili, Sabeha Benbouchta, Laurence Roediger, Marc Senard, Marie Bernard Hubert, Anne-Françoise Donneau, Jean-François Brichant, Gregory A Hans
BACKGROUND: Peak systolic global longitudinal strain (GLS) is increasingly used to quantify left ventricular systolic function. The primary objective of this study was to assess whether GLS obtained during intraoperative transesophageal echocardiogram, performed before cardiopulmonary bypass, improves the prediction of postoperative low cardiac output syndrome (LCOS) after adult cardiac surgery. METHODS: GLS from 275 patients undergoing on-pump cardiac surgery was calculated retrospectively using two-dimensional- speckle tracking echocardiography (aCMQ module from Qlab software version 10...
November 7, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29081909/geometric-comparison-of-the-mitral-and-tricuspid-valve-annulus-insights-from-three-dimensional-transesophageal-echocardiography
#4
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/28983167/predictors-of-transient-left-ventricular-dysfunction-following-transcatheter-patent-ductus-arteriosus-closure-in-pediatric-age
#5
Hala Mounir Agha, Hala S Hamza, Alyaa Kotby, Mona E L Ganzoury, Nanies Soliman
OBJECTIVES: To evaluate the left ventricular function before and after transcatheter percutaneous patent ductus arteriosus (PDA) closure, and to identify the predictors of myocardial dysfunction post-PDA closure if present. INTERVENTIONS: Transcatheter PDA closure; conventional, Doppler, and tissue Doppler imaging; and speckle tracking echocardiography. OUTCOME MEASURES: To determine the feasibility and reliability of tissue Doppler and myocardial deformation imaging for evaluating myocardial function in children undergoing transcatheter PDA closure...
October 2017: Journal of the Saudi Heart Association
https://www.readbyqxmd.com/read/28845021/diagnostic-accuracy-of-electrocardiographic-p-wave-related-parameters-in-the-assessment-of-left-atrial-size-in-dogs-with-degenerative-mitral-valve-disease
#6
Ángel Soto-Bustos, Alicia Caro-Vadillo, Elena Martínez-DE-Merlo, Elisa González Alonso-Alegre
The purpose of this research was to compare the accuracy of newly described P wave-related parameters (P wave area, Macruz index and mean electrical axis) with classical P wave-related parameters (voltage and duration of P wave) for the assessment of left atrial (LA) size in dogs with degenerative mitral valve disease. One hundred forty-six dogs (37 healthy control dogs and 109 dogs with degenerative mitral valve disease) were prospectively studied. Two-dimensional echocardiography examinations and a 6-lead ECG were performed prospectively in all dogs...
October 7, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28827606/effect-of-aortic-regurgitant-jet-direction-on-mitral-valve-leaflet-remodeling-a-real-time-three-dimensional-transesophageal-echocardiography-study
#7
Kensuke Hirasawa, Masaki Izumo, Taro Sasaoka, Takashi Ashikaga, Kengo Suzuki, Tomoo Harada, Mitsuaki Isobe, Yoshihiro J Akashi
Chronic aortic regurgitation (AR) induces mitral valve (MV) leaflet enlargement, although, its mechanism still remains unclear. This study aimed to clarify the influence of AR jet directions on the MV apparatus in patients with chronic AR. This study included 69 consecutive patients with severe chronic AR and 17 controls who underwent three-dimensional (3D) transesophageal echocardiography (TEE). The anterior mitral leaflet (AML), posterior mitral leaflet (PML) and MV annulus areas were measured at mid-diastole...
August 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28791582/physiological-mitral-annular-dynamics-preserved-after-ring-annuloplasty-in-mid-term-period
#8
Masaaki Ryomoto, Masataka Mitsuno, Mitsuhiro Yamamura, Hiroe Tanaka, Naosumi Sekiya, Hisashi Uemura, Ayaka Sato, Daisuke Ueda, Yuji Miyamoto
OBJECTIVE: Mitral annular structure and dynamics after mitral ring annuloplasty using transesophageal echocardiography during the operation have been reported. We evaluated mitral annular structure and dynamics of three different rings in the mid-term period postoperatively. METHODS: Thirty-one patients underwent mitral valve repair for degenerative mitral insufficiency. The MEMO 3D ring (semi-flexible), Carpentier-Edwards Physio II ring (semi-rigid), and St. Jude Medical Rigid Saddle Ring (rigid) were implanted in 15, 12, and eight patients, respectively, from September 2009 to February 2015...
November 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28782496/morphological-three-dimensional-analysis-of-papillary-muscles-in-borderline-left-ventricles
#9
Mari N Velasco Forte, Mohamed Nassar, Nick Byrne, Miguel Silva Vieira, Israel V Pérez, Bram Ruijsink, John Simpson, Tarique Hussain
OBJECTIVE: Mitral valve anatomy has a significant impact on potential surgical options for patients with hypoplastic or borderline left ventricle. Papillary muscle morphology is a major component regarding this aspect. The purpose of this study was to use cardiac magnetic resonance to describe the differences in papillary muscle anatomy between normal, borderline, and hypoplastic left ventricles. METHODS: We carried out a retrospective, observational cardiac magnetic resonance study of children (median age 5...
September 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28673638/effect-of-percutaneous-edge-to-edge-repair-on-mitral-valve-area-and-its-association-with-pulmonary-hypertension-and-outcomes
#10
Hiroto Utsunomiya, Yuji Itabashi, Sayuki Kobayashi, Florian Rader, Asma Hussaini, Moody Makar, Alfredo Trento, Robert J Siegel, Saibal Kar, Takahiro Shiota
Percutaneous edge-to-edge repair using the MitraClip system causes reduction in mitral valve area (MVA). However, its clinical impact is not fully elucidated. This study assessed the impact of postprocedural MVA reduction on pulmonary hypertension and outcomes. A total of 92 patients with grades 3 to 4 + mitral regurgitation (MR) who underwent MitraClip therapy were retrospectively reviewed. Using intraprocedural, 3-dimensional transesophageal echocardiography, postprocedural MVA was obtained by 2 optimized planes through the medial and lateral orifices of the repaired valve...
August 15, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28391001/three-dimensional-mitral-valve-morphology-and-age-related-trends-in-children-and-young-adults-with-structurally-normal-hearts-using-transthoracic-echocardiography
#11
Matthew A Jolley, Sunil J Ghelani, Adi Adar, David M Harrild
BACKGROUND: The mitral valve has a complex three-dimensional (3D) morphology that is incompletely described by two-dimensional echocardiography (echo). Three-dimensional echo provides a more robust tool to analyze the mitral valve. The shape of the mitral annulus and leaflets, and differences with age, have not been described by 3D echo in normal children. Our objective was to characterize and quantify the 3D mitral valve morphology in children with normal transthoracic echocardiograms over a broad spectrum of age and to identify differences in valve shape with age...
June 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28289019/insufficient-leaflet-remodeling-in-patients-with-atrial-fibrillation-association-with-the-severity-of-mitral-regurgitation
#12
Nobuyuki Kagiyama, Akihiro Hayashida, Misako Toki, Shota Fukuda, Minako Ohara, Atsushi Hirohata, Keizo Yamamoto, Mitsuaki Isobe, Kiyoshi Yoshida
BACKGROUND: The relationship between annular dilatation caused by atrial fibrillation (AF) and mitral regurgitation (MR) remains controversial. We hypothesized that the small ratio of total leaflet area/annulus area (TLA/AA), reflecting insufficient leaflet remodeling to annular dilatation, is a main component of MR in patients with AF. METHODS AND RESULTS: Three-dimensional transesophageal echocardiographic data of the mitral valve were analyzed in 28 AF patients with moderate or severe MR (MR group), age- and sex-matched 56 AF patients with mild or less MR (non-MR group), and 16 control subjects...
March 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28279678/mitral-valve-morphology-assessed-by-three-dimensional-transthoracic-echocardiography-in-healthy-dogs-and-dogs-with-myxomatous-mitral-valve-disease
#13
G Menciotti, M Borgarelli, M Aherne, S Wesselowski, J Häggström, I Ljungvall, S M Lahmers, J A Abbott
OBJECTIVE: To assess differences in morphology of the mitral valve (MV) between healthy dogs and dogs affected by myxomatous mitral valve disease (MMVD) using real-time transthoracic three-dimensional echocardiography (RT3DE). ANIMALS: Thirty-four were normal dogs and 79 dogs were affected by MMVD. METHODS: Real-time transthoracic three-dimensional echocardiography mitral datasets were digitally recorded and analyzed using dedicated software...
April 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28197645/subclinical-decrease-in-myocardial-function-in-asymptomatic-infants-of-diabetic-mothers-a-tissue-doppler-study
#14
Jenny E Zablah, Dorota Gruber, Guillaume Stoffels, Estefania G Cabezas, Denise A Hayes
Infants of diabetic mothers (IDMs) with hypertrophic cardiomyopathy are recognized to have impaired myocardial performance, but less is known about ventricular function in IDMs without hypertrophy. We hypothesized that in asymptomatic newborns with normal two-dimensional echocardiographic evaluations, pulsed wave tissue Doppler imaging (TDI) would suggest a subclinical decrease in the cardiac function of IDMs compared to infants of non-diabetics (nIDMs). This is a retrospective cohort study of asymptomatic neonates ≥36 weeks gestation, at 0-7 days of life, with normal standard echocardiograms...
April 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28041955/cardiac-dysfunction-in-children-and-young-adults-with-heart-transplantation-a-comprehensive-echocardiography-study
#15
Marcello Chinali, Claudia Esposito, Giorgia Grutter, Roberta Iacobelli, Alessandra Toscano, Maria Grazia D'Asaro, Alessia Del Pasqua, Gianluca Brancaccio, Francesco Parisi, Fabrizio Drago, Gabriele Rinelli
BACKGROUND: Transplanted heart dysfunction is a serious life-threatening condition in pediatric transplant recipients. Several studies have focused on echocardiographic detection of early signs of cardiac dysfunction in this population. We evaluated advanced echocardiographic indices of cardiac function in a large sample of children and young adults with heart transplants with apparently normal cardiac function. METHODS: The study included 60 patients with normal ejection fraction with transplantation performed at pediatric age between 1986 and 2014 and 60 healthy control subjects...
May 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/27989043/distant-position-of-chordae-from-coaptation-causes-mitral-regurgitation-in-patients-with-atrial-fibrillation
#16
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/27753898/os-01-07-clinical-importance-of-collagen-metabolism-markers-in-rheumatic-heart-valve-disease-in-indian-subpopulation
#17
Tanima Banerjee, Somaditya Mukherjee, Sudip Ghosh, Monodeep Biswas, Santanu Datta, Sanjib Pattari, Shelly Chatterjee, Arun Bandyopadhyay
OBJECTIVE: Rheumatic Heart Disease (RHD), a chronic acquired heart disorder results from Acute Rheumatic Fever. RHD is mostly prevalent in developing nations which is mainly diagnosed by transthoracic echocardiography. Till date, there is no biochemical marker for disease management. In the present study we aim to investigate whether mitral valve remodeling contributes to altered levels of circulating biomarkers of collagen metabolism in rheumatic heart disease. DESIGN AND METHOD: The study involved RHD subjects with before and after valve replacement surgery which includes age and sex matched controls...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27643244/os-01-07-clinical-importance-of-collagen-metabolism-markers-in-rheumatic-heart-valve-disease-in-indian-subpopulation
#18
Tanima Banerjee, Somaditya Mukherjee, Sudip Ghosh, Monodeep Biswas, Santanu Datta, Sanjib Pattari, Shelly Chatterjee, Arun Bandyopadhyay
OBJECTIVE: Rheumatic Heart Disease (RHD), a chronic acquired heart disorder results from Acute Rheumatic Fever. RHD is mostly prevalent in developing nations which is mainly diagnosed by transthoracic echocardiography. Till date, there is no biochemical marker for disease management. In the present study we aim to investigate whether mitral valve remodeling contributes to altered levels of circulating biomarkers of collagen metabolism in rheumatic heart disease. DESIGN AND METHOD: The study involved RHD subjects with before and after valve replacement surgery which includes age and sex matched controls...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27502294/predicting-outcomes-after-percutaneous-mitral-balloon-valvotomy-the-impact-of-left-ventricular-strain-imaging
#19
Sergio Barros-Gomes, Mackram F Eleid, Jordi S Dahl, Cristina Pislaru, Rick A Nishimura, Patricia A Pellikka, Sorin V Pislaru
Aims: This study aimed (1) to evaluate the impact of preprocedural two-dimensional speckle-tracking echocardiography (2D-STE) on long-term outcome after successful percutaneous mitral balloon valvotomy (PMBV) in patients with mitral stenosis (MS) and (2) to determine whether 2D-STE detects underlying diastolic dysfunction as defined by invasive haemodynamic study. Methods and Results: Sixty-four consecutive MS patients with preserved left ventricular ejection fraction (LVEF ≥50%) and who underwent successfully PMBV were studied...
July 1, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/27448551/mitral-valve-repair-using-a-semirigid-ring-patient-selection-and-early-outcomes
#20
Song Wan, Alex Pw Lee, Saina Attaran, Peter Sy Yu, Sylvia Sw Au, Micky Wt Kwok, Rainbow Wh Lau, Randolph Hl Wong, Innes Yp Wan, Siu-Keung Ng, Malcolm J Underwood
BACKGROUND: Commonly used complete mitral annuloplastic rings include saddle-shaped and semirigid rings, with no clear indication for either type. A semirigid ring may be preferred in patients whose native mitral saddle shape is well maintained. We present our experience of using semirigid rings for mitral valve repair. METHODS: We routinely measured the annular height-to-commissural width ratio by 3-dimensional transesophageal echocardiography prior to mitral repair...
September 2016: Asian Cardiovascular & Thoracic Annals
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