keyword
MENU ▼
Read by QxMD icon Read
search

Dimensional ratios of the mitral valve

keyword
https://www.readbyqxmd.com/read/27753898/os-01-07-clinical-importance-of-collagen-metabolism-markers-in-rheumatic-heart-valve-disease-in-indian-subpopulation
#1
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
#2
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
#3
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...
August 7, 2016: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/27448551/mitral-valve-repair-using-a-semirigid-ring-patient-selection-and-early-outcomes
#4
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
https://www.readbyqxmd.com/read/27153370/the-geometrical-effect-of-different-annuloplasty-rings-on-mitral-valve-annulus
#5
Sameer Al-Maisary, Bastian Graser, Sandy Engelhardt, Ivo Wolf, Matthias Karck, Raffaele De Simone
BACKGROUND: Different types of mitral annuloplasty rings are commercially available. The aim of this study was to investigate the effect of implantation of six types of annuloplasty rings on the geometry and dynamics of the mitral valve. METHODS: Three-dimensional echocardiography images of 42 patients were acquired to visualize the mitral valve annulus. Virtual representations of six commercially available annuloplasty rings were matched to anatomical mitral annuli of each patient according to anterolateral-posteromedial diameter...
May 6, 2016: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/27107264/acute-effect-of-mitraclip-implantation-on-mitral-valve-geometry-in-patients-with-functional-mitral-regurgitation-insights-from-three-dimensional-transoesophageal-echocardiography
#6
Ibtihal Al Amri, Philippe Debonnaire, Frank van der Kley, Martin J Schalij, Jeroen J Bax, Nina Ajmone Marsan, Victoria Delgado
AIMS: Our aim was to evaluate the acute effects of transcatheter edge-to-edge mitral valve repair using the MitraClip device on mitral valve geometry in patients with functional mitral regurgitation (FMR). METHODS AND RESULTS: Forty-two patients (age 73 years [IQ range 66.1-78.0], 55% men, 62% ischaemic FMR) with moderate-to-severe and severe FMR treated with the MitraClip were included. Three-dimensional transoesophageal echocardiography was performed prior to and immediately after MitraClip implantation...
April 20, 2016: EuroIntervention
https://www.readbyqxmd.com/read/27059745/assessment-of-cardiac-function-in-absence-of-congenital-and-acquired-heart-disease-in-patients-with-down-syndrome
#7
Sevket Balli, Ilker Kemal Yucel, Ayse Esin Kibar, Ibrahim Ece, Eylem Sen Dalkiran, Sukru Candan
BACKGROUND: Extra genetic material in patients with Down syndrome (DS) may affect the function of any organ system. We evaluated cardiac functions using conventional tissue Doppler and two-dimensional speckle tracking echocardiography in patients with DS in the absence of congenital and acquired heart disease in patients. METHODS: A total of 115 patients with DS between 6 and 13 years of age with clinically and anatomically normal heart and 55 healthy children were included in this cross-sectional study...
April 8, 2016: World Journal of Pediatrics: WJP
https://www.readbyqxmd.com/read/27027836/two-dimensional-left-atrium-to-aorta-ratios-and-left-ventricular-m-mode-transthoracic-echocardiographic-measurements-in-clinically-normal-adult-dachshunds
#8
Chee Kin Lim, Geoffrey T Fosgate, Henry W Green, Robert M Kirberger
OBJECTIVE: To estimate the left atrium-to-aorta ratio (LA:Ao) and establish 95% prediction intervals for left ventricular M-mode transthoracic echocardiographic measurements in clinically normal adult Dachshunds. ANIMALS: 40 healthy Dachshunds. PROCEDURES: For each dog, 3 standard 2-D echocardiographic methods (diameter, circumference, and cross-sectional area) were used to measure the left atrium and aorta and calculate the LA:Ao from right parasternal short axis (RPSA) images obtained at the level of the aortic valve cusps...
April 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/27009978/comparison-of-four-echocardiographic-methods-to-determine-left-atrial-size-in-dogs
#9
M Höllmer, J L Willesen, A Tolver, J Koch
OBJECTIVES: To compare a linear and three volume-based two-dimensional echocardiographic methods for measuring LA size: left atrium to aorta ratio (LA/Ao ratio), biplane area-length, biplane modified Simpson and monoplane area-length. ANIMALS: One hundred seventy-six client-owned dogs of different breeds, 88 healthy dogs and 88 dogs with myxomatous mitral valve disease of different disease severity. METHODS: The left apical four- and two-chamber views were used to measure LA volumes...
June 2016: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/26937911/left-ventricular-diastolic-dysfunction-assessed-by-conventional-echocardiography-and-spectral-tissue-doppler-imaging-in-adolescents-with-arterial-hypertension
#10
Aleksandra Morka, Leslaw Szydlowski, Ewa Moric-Janiszewska, Boguslaw Mazurek, Grazyna Markiewicz-Loskot, Sebastian Stec
Compared to conventional echocardiography, spectral tissue Doppler imaging (s-TDI) allows more precise evaluation of diastolic cardiac function. The purpose of this study was to conduct s-TDI to analyze the slow movement of the left ventricular (LV) myocardium in adolescents with systemic arterial hypertension (HT) and to determine whether patients with HT suffer from LV diastolic dysfunction. The study group comprised 69 consecutive patients (48 boys and 21 girls aged 14-17 years [mean, 15.5 ± 1.1 years]) with primary HT, and the control group comprised 48 healthy participants (24 boys and 24 girls aged 14-17 years [mean, 15...
February 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/26832312/assessment-of-mitral-valve-morphology-using-three-dimensional-echocardiography-feasibility-and-reference-values
#11
G Menciotti, M Borgarelli, M Aherne, J Häggström, I Ljungvall, S M Lahmers, J A Abbott
OBJECTIVES: To evaluate the feasibility of real time transthoracic three-dimensional echocardiography (RT3DE) for evaluation of normal canine mitral valves (MVs), and to provide reference values for this technique. ANIMALS: Forty-three cardiologically healthy, not sedated dogs. METHODS: Transthoracic RT3DE mitral datasets were acquired during two consecutive 6-month periods. The datasets were analyzed using commercially available software...
June 2016: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/26822698/left-ventricular-volumes-by-echocardiography-in-chronic-aortic-and-mitral-regurgitations
#12
Odd Bech-Hanssen, Christian Lars Polte, Kerstin M Lagerstrand, Åse A Johnsson, Bahaa M Fadel, Sinsia A Gao
Objectives Cut-off values for left ventricular (LV) dimensions indicating severe valve regurgitation have not been defined. The aim of this study was to establish echocardiographic cut-off values for LV dimensions indicating severe chronic aortic (AR) or mitral (MR) regurgitation. Design The hemodynamic significance was confirmed by documented reduction of end-diastolic volume (EDV) and symptom relief after surgery. Eighty-three patients with moderate or severe regurgitation (AR, n = 41; MR, n = 42) without other cardiac conditions underwent prospectively two-dimensional (2DE), real-time three-dimensional (RT3DE) echocardiography and cardiovascular magnetic resonance (CMR) exams within 4 h...
June 2016: Scandinavian Cardiovascular Journal: SCJ
https://www.readbyqxmd.com/read/26664902/mitral-annular-kinetics-left-atrial-and-left-ventricular-diastolic-function-post-mitral-valve-repair-in-degenerative-mitral-regurgitation
#13
Chun G Schiros, Mustafa I Ahmed, David C McGiffin, Xiaoxia Zhang, Steven G Lloyd, Inmaculada Aban, Thomas S Denney, Louis J Dell'Italia, Himanshu Gupta
OBJECTIVE: The relationship of mitral annular (MA) kinetics to left ventricular (LV) and left atrial (LA) function before and after mitral valve (MV) repair has not been well studied. Here we sought to provide comprehensive analysis that relates to MA motions, and LA and LV diastolic function post MV repair. METHODS: Three-dimensional analyses of mitral annular motion, LA function, and LV volumetric and diastolic strain rates were performed on 35 degenerative mitral regurgitation (MR) patients at baseline and 1-year post MV repair, and 51 normal controls, utilizing cardiac magnetic resonance imaging with tissue tagging...
2015: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/26467362/assessment-of-left-atrial-volume-and-mechanical-functions-using-real-time-three-dimensional-echocardiography-in-patients-with-mitral-annular-calcification
#14
Adil Bayramoğlu, Hakan Taşolar, Yılmaz Ömür Otlu, Şıho Hidayet, Fuat Kurt, Adil Doğan, Hasan Pekdemir
OBJECTIVE: Mitral annular calcification (MAC) is degeneration of the fibrous annular ring of the mitral valve. Left atrial (LA) function and volume have been evaluated by many methods; however, none have used real-time three-dimensional echocardiography (RT3DE) in patients with MAC. Our study is the first to evaluate LA volume and mechanical function using RT3DE in patients with MAC. METHODS: Our study was a prospective cross-sectional study. In total, 32 patients with echocardiographic evidence of MAC and 30 volunteers without MAC were enrolled in the study...
January 2016: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/26416720/the-impact-of-fluid-inertia-on-in-vivo-estimation-of-mitral-valve-leaflet-constitutive-properties-and-mechanics
#15
David L Bark, Lakshmi P Dasi
We examine the influence of the added mass effect (fluid inertia) on mitral valve leaflet stress during isovolumetric phases. To study this effect, oscillating flow is applied to a flexible membrane at various frequencies to control inertia. Resulting membrane strain is calculated through a three-dimensional reconstruction of markers from stereo images. To investigate the effect in vivo, the analysis is repeated on a published dataset for an ovine mitral valve (Journal of Biomechanics 42(16): 2697-2701). The membrane experiment demonstrates that the relationship between pressure and strain must be corrected with a fluid inertia term if the ratio of inertia to pressure differential approaches 1...
May 2016: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/26370370/impact-of-right-ventricular-geometry-on-mitral-regurgitation-after-transcatheter-closure-of-atrial-septal-defect
#16
Mana Hiraishi, Hidekazu Tanaka, Yoshiki Motoji, Takuma Sawa, Takayuki Tsuji, Tatsuya Miyoshi, Junichi Imanishi, Akihiro Kaneko, Kensuke Matsumoto, Toshiro Shinke, Ken-ichi Hirata
Worsening of mitral regurgitation (MR) is sometimes observed after closure of an atrial septal defect (ASD). However, since the mechanism of this deterioration remains unclear, the aim of our study was to investigate the effect of left (LV) and right ventricular (RV) geometry on MR after transcatheter closure of ASD.We studied 27 patients with ASD who underwent transcatheter closure. Echocardiography was performed before and 6 ± 2 months after the procedure. In addition to conventional echocardiographic parameters, full volume data of the whole LV and RV heart was obtained with 3-dimensional echocardiography...
2015: International Heart Journal
https://www.readbyqxmd.com/read/26348680/acute-effect-of-mitraclip-implantation-on-mitral-valve-geometry-in-patients-with-functional-mitral-regurgitation-insights-from-three-dimensional-transoesophageal-echocardiography
#17
Ibtihal Al Amri, Philippe Debonnaire, Frank van der Kley, Martin J Schalij, Jeroen J Bax, Nina Ajmone Marsan, Victoria Delgado
AIMS: Our aim was to evaluate the acute effects of transcatheter edge-to-edge mitral valve repair using the MitraClip device on mitral valve geometry in patients with functional mitral regurgitation (FMR). METHODS AND RESULTS: Forty-two patients (age 73 years [IQ range 66.1-78.0], 55% men, 62% ischaemic FMR) with moderate-to-severe and severe FMR treated with the MitraClip were included. Three-dimensional transoesophageal echocardiography was performed prior to and immediately after MitraClip implantation...
April 20, 2016: EuroIntervention
https://www.readbyqxmd.com/read/26321001/differences-in-natural-history-of-low-and-high-gradient-aortic-stenosis-from-nonsevere-to-severe-stage-of-the-disease
#18
COMPARATIVE STUDY
Sebastian Herrmann, Bastian Fries, Dan Liu, Kai Hu, Stefan Stoerk, Wolfram Voelker, Catharina Ruppert, Kristina Lorenz, Georg Ertl, Frank Weidemann
BACKGROUND: The aim of the present study was to assess and compare the disease progression of aortic stenosis (AS) subtypes from nonsevere to severe disease on the basis of measures of gradient and flow. METHODS: Seventy-seven patients with AS (mean aortic valve area, 1.3 ± 0.3 cm(2) at baseline) underwent echocardiographic examination, including two-dimensional speckle-tracking strain measurements. Patients were retrospectively grouped according to mean transvalvular pressure gradient (40 mm Hg) into low-gradient (LG/AS) and high-gradient (HG/AS) groups...
November 2015: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/26294134/changes-of-cardiac-function-during-ultradistance-trail%C3%A2-running
#19
Romain Jouffroy, Vincent Caille, Stéphane Perrot, Antoine Vieillard-Baron, Olivier Dubourg, Nicolas Mansencal
Previous studies have noted reversible cardiac dysfunction during marathon races, but few data are available concerning ultradistance trail running. The aim of this study was to assess echocardiographic parameters during ultradistance trail running. We performed an observational study in 66 participants to the 80-km Ecotrail of Paris Ile de France. All subjects had echocardiographic examinations before the race and on arrival, and 28 of them underwent serial echocardiographic examinations during the race (21 and 53 km)...
October 15, 2015: American Journal of Cardiology
https://www.readbyqxmd.com/read/26264739/predictive-value-of-left-atrial-deformation-on-prognosis-in-severe-primary-mitral-regurgitation
#20
Li-Tan Yang, Yen-Wen Liu, Jhih-Yuan Shih, Yi-Heng Li, Liang-Miin Tsai, Chwan-Yau Luo, Wei-Chuan Tsai
BACKGROUND: Impaired left atrial (LA) deformation is noted in patients with severe primary mitral regurgitation (MR), but its prognostic value is unknown. The aim of this study was to investigate the prognostic significance of LA deformation parameters in patients with chronic severe primary MR. METHODS: A total of 104 patients with asymptomatic chronic severe primary MR (Carpentier type II) and preserved left ventricular systolic function were prospectively recruited...
November 2015: Journal of the American Society of Echocardiography
keyword
keyword
89394
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"