نتایج جستجو برای: mitral

تعداد نتایج: 36525  

Journal: :British heart journal 1983
N Kinoshita Y Nimura M Okamoto K Miyatake S Nagata H Sakakibara

Mitral regurgitation and its haemodynamic features were investigated non-invasively in cases of hypertrophic cardiomyopathy by means of two dimensional Doppler echocardiography. There were 28 patients, 14 of whom showed systolic anterior motion (SAM) of the mitral echo; the other 14 did not. The following results were obtained. (1) Mitral regurgitation was detected by the Doppler technique in a...

Journal: :the journal of tehran university heart center 0
pouya nezafati1 student research committee, mashhad university of medical sciences, mashhad, iran. mashhad university of medical sciences mohammadhassan emam reza academic hospital mohammad moshiri school of pharmacy, mashhad university of medical sciences, mashhad, iran.

background: about half of all patients who undergo mitral valve surgery suffer from atrial fibrillation (af). cox described the surgical cut-and-sew maze procedure, which is an effective surgical method but has some complications. this study was designed to evaluate the efficacy of a substitution method of radiofrequency ablation (rfa) for patients undergoing mitral valve surgery with af. metho...

Journal: :galen medical journal 0
mostafa bahremand kermanshah university of medical sciences, kermanshah, iran. nahid salehi kermanshah university of medical sciences, kermanshah, iran. alireza rai imam ali hospital, kermanshah university of medical sciences, kermanshah, iran. mansour rezaee kermanshah university of medical sciences, kermanshah, iran. ahmad ali raeisei

background: cardiac rehabilitation is known as a powerful non-pharmacological approach for improving functional capacity, and left ventricular systolic function; however, some limited data have suggested an attenuation of the decline in diastolic function with this program. this study investigated the effect of high intensity aerobic exercise following coronary artery bypass surgery (cabg) on d...

Journal: :Journal of the American College of Cardiology 1993
M Dahan C Paillole D Martin R Gourgon

OBJECTIVES The aim of this study was to assess exercise-induced changes in stroke volume and their main determinants in mitral stenosis. BACKGROUND The mechanisms of the stroke volume response to exercise in mitral stenosis are not clearly established. METHODS Twenty-seven patients with mitral stenosis, aged 47 +/- 13 years, and 10 healthy control subjects, aged 46 +/- 11 years, were examin...

Journal: :Circulation 1976
M LaCorte K Harada R G Williams

The echocardiographic features of congenital left ventricular inflow obstruction are described in six patients. The echocardiograms in two patients with cor triatriatum were distinguished by normal mitral valve motion and an abnormal echo within the left atrium. In two patients with supravalvar mitral ring, in addition to abnormal mitral valve motion, an abnormal echo, presumably originating fr...

Journal: :British heart journal 1979
M F Shiu A Crowther B S Jenkins M M Webb-Peploe

M-mode echocardiography was performed in 54 patients 1 month to 3 years after mitral valvotomy for dominant mitral stenosis. The mitral valve closure index (MVCI), an index previously shown to correlate well with the calculated mitral valve area, was used to diagnose residual mitral stenosis. Using the equation MVCI = 33 MVC--12, 12 patients (22%) were deemed to have mild, 4 (7%) moderate, and ...

2016
S. BEN ZEKRY G. LAWRIE S. LITTLE W. ZOGHBI J. FREEMAN A. JAJOO S. JAIN J. HE A. MARTYNENKO R. AZENCOTT

We present new algorithms to compute patient specific strain maps for mitral valve leaflets, by tracking and modeling deformations of the mitral valve apparatus in 3D echocardiography. We can then quantify comparisons of mitral leaflets strain maps between normal patients and cases of mitral valve prolapse or regurgitation. For patients with mitral valve regurgitation, we compare mitral leaflet...

Journal: :Circulation 2012
Melissa M Levack Arminder S Jassar Eric K Shang Mathieu Vergnat Y Joseph Woo Michael A Acker Benjamin M Jackson Joseph H Gorman Robert C Gorman

BACKGROUND Proponents of flexible annuloplasty rings have hypothesized that such devices maintain annular dynamics. This hypothesis is based on the supposition that annular motion is relatively normal in patients undergoing mitral valve repair. We hypothesized that mitral annular dynamics are impaired in ischemic mitral regurgitation and myxomatous mitral regurgitation. METHODS AND RESULTS A ...

2012
Melissa M. Levack Arminder S. Jassar Eric K. Shang Benjamin M. Jackson Joseph H. Gorman

Background—Proponents of flexible annuloplasty rings have hypothesized that such devices maintain annular dynamics. This hypothesis is based on the supposition that annular motion is relatively normal in patients undergoing mitral valve repair. We hypothesized that mitral annular dynamics are impaired in ischemic mitral regurgitation and myxomatous mitral regurgitation. Methods and Results—A Ph...

Journal: :Frontiers in surgery 2015
Patrick O. Myers Christopher W. Baird Pedro J. del Nido Frank A. Pigula Nora Lang Gerald R. Marx Sitaram M. Emani

OBJECTIVES Although mitral valve repair is rarely required in neonates, this population is considered to be at high risk for adverse outcomes. The aim of this study was to review the indications for surgery, mechanisms, repair techniques, and mid-term outcomes of neonatal mitral valve repair. METHODS The demographic, procedural, and outcome data were obtained for all neonates who underwent mi...

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