Results 141 to 150 of about 6,465 (169)

Mitral or aortic regurgitation: quantification of regurgitant volumes with cine MR imaging.

Radiology, 1988
A new, rapid magnetic resonance (MR) imaging method, cine MR imaging, was used to determine the regurgitant fraction (RF) in patients with left-sided regurgitant lesions. Right and left ventricular stroke volumes were determined with cine MR imaging and a modified Simpson formula in ten healthy volunteers and 23 patients known to have either ...
U, Sechtem, P W, Pflugfelder, M M, Cassidy, R D, White, M D, Cheitlin, N B, Schiller, C B, Higgins   +6 more
openaire   +2 more sources

Volume overload hypertrophy in a closed-chest model of mitral regurgitation

American Journal of Physiology-Heart and Circulatory Physiology, 1988
Chronic volume overload hypertrophy as seen in mitral regurgitation in humans eventually may cause left ventricular dysfunction. Longitudinal study of the mechanisms leading to such dysfunction is difficult in humans and more easily performed in an animal model.
J P, Kleaveland, W G, Kussmaul, T, Vinciguerra, R, Diters, B A, Carabello   +4 more
openaire   +2 more sources

Left ventricular volumes by echocardiography in chronic aortic and mitral regurgitations

Scandinavian Cardiovascular Journal, 2016
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.
Odd, Bech-Hanssen, Christian Lars, Polte, Kerstin M, Lagerstrand, Åse A, Johnsson, Bahaa M, Fadel, Sinsia A, Gao   +5 more
openaire   +2 more sources

An Appraisal of the Association of Clinical Outcomes With the Severity of Regurgitant Volume Relative to End-Diastolic Volume in Patients With Secondary Mitral Regurgitation

JAMA Cardiology, 2020
Two randomized clinical trials of transcatheter edge-to-edge mitral valve repair in patients with secondary mitral regurgitation (the Multicentre Randomized Study of Percutaneous Mitral Valve Repair MitraClip Device in Patients With Severe Secondary Mitral Regurgitation [MITRA-FR] and the Cardiovascular Outcomes Assessment of the MitraClip Percutaneous
William H, Gaasch, Gerard P, Aurigemma, Theo E, Meyer   +2 more
openaire   +2 more sources

Regurgitant Volume/Left Ventricular End-Diastolic Volume Ratio: Prognostic Value in Patients With Secondary Mitral Regurgitation.

JACC. Cardiovascular imaging, 2021
The purpose of this study was to investigate the prognostic implications of the ratio of mitral regurgitant volume (RVol) to left ventricular (LV) end-diastolic volume (EDV) in patients with significant secondary mitral regurgitation (MR).Quantification of secondary MR remains challenging, and its severity can be over- or underestimated when using the ...
Namazi F, van der Bijl P, Fortuni F, Mertens BJA, Kamperidis V, van Wijngaarden SE, Stone GW, Narula J, Ajmone Marsan N, Vahanian A, Delgado V, Bax JJ   +11 more
openaire   +2 more sources

Prognostic Value of Left Atrial Volume in Asymptomatic Organic Mitral Regurgitation

Journal of the American Society of Echocardiography, 2013
Basal left atrial volume (LAV) indexed to body surface area (LAVI) predicts adverse events in patients with organic mitral regurgitation, but information is lacking regarding change in left atrial volume during follow-up.One hundred forty-four asymptomatic patients (mean age, 71 ± 12 years; 66% women; mean ejection fraction, 66 ± 4.8%) with moderate to
Aníbal, Arias, Rodolfo, Pizarro, Pablo, Oberti, Mariano, Falconi, Luciano, Lucas, Federico, Sosa, Diego, Funes, Arturo, Cagide   +7 more
openaire   +2 more sources

THE RELATIONSHIP BETWEEN MITRAL REGURGITANT VOLUME, MITRAL REGURGITANT FRACTION, AND SYMPTOMS IN PRIMARY MITRAL REGURGITATION

Journal of the American College of Cardiology, 2023
Seth Uretsky, Matthew Schaikewitz, Jonathan J. Ignacio, Andrea Vegh, Thomas Maher, Connor Wolff   +5 more
openaire   +1 more source

[Quantification of mitral regurgitation by Doppler color flow mapping: comparison of mitral regurgitant fraction and volume with Doppler measurements].

Journal of cardiology, 1993
Color flow imaging of the regurgitant areas has been used to quantitate the severity of valvular regurgitation, however, the exact relationship between color flow areas and regurgitant volumes or fraction has not been clarified. This study was designed to determine whether measurements of jet flow areas and distances using color flow imaging are ...
H, Ito, N, Akehi, T, Tomooka, N, Sakai, Y, Higashino, K, Fujii, O, Kato, T, Minamino, A, Kitabatake, T, Kamada   +9 more
openaire   +1 more source

Left atrial volume overload in mitral regurgitation: A two dimensional echocardiographic study

The American Journal of Cardiology, 1982
Left atrial volume in patients with mitral valve disease was studied with two dimensional echocardiography. The left atrial dimension was derived by planimetry of the left atrial area and, assuming spherical geometry, left atrial volume was calculated. Patients with severe mitral regurgitation had marked systolic expansion of the left atrium with large
L G, Gehl, G S, Mintz, M N, Kotler, B L, Segal   +3 more
openaire   +2 more sources

Does Repair of Mitral Regurgitation Eliminate the Need for Left Ventricular Volume Reduction?

Journal of Cardiac Surgery, 2003
Effects of partial left ventriculectomy (PLV) remain ill-defined because mitral regurgitation (MR) repair by isolated annuloplasty alone has been reported to improve patients with dilated left ventricle and severe MR.Among patients undergoing PLV, 120 had paired pre- and postoperative (
Akira T, Kawaguchi, Hratch L, Karamanoukian, Lise O, Bocchino, Shinichiro, Shimura, Takashi, Hayashi, Randas J V, Batista   +5 more
openaire   +2 more sources