Quantitation of mitral valve tenting in ischemic mitral regurgitation by transthoracic real-time three-dimensional echocardiography

Watanabe, Nozomi; Ogasawara, Yasuo; Yamaura, Yasuko; Kawamoto, Takahiro; Toyota, Eiji; Akasaka, Takashi; Yoshida, Kiyoshi

doi:10.1016/j.jacc.2004.11.048

Cited by 173 publications

(121 citation statements)

References 28 publications

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“…We have developed a novel software system, which allows us to visualize and quantify the complex geometry of the mitral valve [8]. By using the software, our group has reported the geometric changes in the mitral annulus and leaflets in functional MR. Mitral valve tenting with dilated annulus could be clearly demonstrated, and tenting volume and annular size were successfully measured three-dimensionally [8,[20][21][22][23]. We have also demonstrated that the 3D quantitation system was helpful in evaluating the effect of surgical procedure on 3D geometry of the mitral apparatus in patients with ischemic MR [24].…”

Section: Discussionmentioning

confidence: 95%

Noninvasive Measurements of the Mitral Annulus Geometry by Newly-developed Quantitation Software With Real-time Three-dimensional Echocardiography: A Validation Study

Okahashi¹,

Watanabe²,

Yamaura³

et al. 2007

J Echocardiogr

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Three-dimensional (3D) quantitative assessment of mitral apparatus geometry has been required to evaluate its unique and complicated morphology [1][2][3][4][5][6][7]. However, quantitative assessment of the mitral apparatus using 3D echocardiography has not been routinely performed because of the cumbersome nature of the measurement procedure. Recently, we had developed a novel software, REAL VIEW , which allows us 3D visualization and quantitation of mitral leaflets and annulus geometry by using transthoracic real-time 3D echocardiography [8]. In the present study, we sought to investigate the accuracy of 3D measurement using REAL VIEW. Methods AbstractBackground. Three-dimensional (3D) quantitative assessment of mitral apparatus geometry has been required to eval-

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Section: Discussionmentioning

confidence: 95%

Noninvasive Measurements of the Mitral Annulus Geometry by Newly-developed Quantitation Software With Real-time Three-dimensional Echocardiography: A Validation Study

Okahashi¹,

Watanabe²,

Yamaura³

et al. 2007

J Echocardiogr

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“…As in the case of prolapse, the likelihood of repair will be enhanced by having a versatile tool-kit of options, obviating the need for valve replacement. Detailed mapping of geometric substrates should allow us to tailor the ideal combination of annular, ventricular, and chordal approaches to achieve the best result in each patient [131,132]. Finally, the dynamics of ischemic MR indicate the need for continuing intensive heart failure therapy.…”

Section: Procedures To Chordaementioning

confidence: 99%

Ischemic Mitral Regurgitation: From New Understanding to New Solutions Role of Echocardiography

2006

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“…A number of mechanisms play role in the development of FMR. The suggested mechanisms for FMR in patients with left ventricular systolic dysfunction are the decrease in the transmitral pressure force which impairs effective mitral valve closure, the geometrical changes in the mitral annulus, papillary muscle, and mitral valve, and the dyssynchronic left ventricular and papillary muscle contractions (5)(6)(7)(8).…”

Section: Introductionmentioning

confidence: 99%

“…1). The mechanisms responsible are increased mitral tethering forces, reduction in closing forces and mechanical and electrical dyssynchrony (5)(6)(7)(8)(19)(20)(21). As the dilating heart becomes more spherical, the papillary muscles displaces outwards and towards the apex.…”

Section: Introductionmentioning

confidence: 99%

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Functional mitral regurgitation and papillary muscle dyssynchrony in patients with left ventricular systolic dysfunction

Güler¹,

Dündar²,

Tigen³

2011

Anadolu Kardiyol Derg

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ÖZETSistolik fonksiyonları bozuk olan genişlemiş bir kalpte, mitral kapakta yapısal bir bozukluk olmasa bile fonksiyonel olarak yetersizlik meydana gelebilir. Fonksiyonel mitral yetersizliğinin gelişmesinde birçok mekanizma beraber rol alır. Bunlar, mitral kapağı kalbin apeksine doğru çeken kuvvetlerdeki artış, sistol sırasında kapağı kapayıcı kuvvetlerdeki azalma ve mekanik ve elektriksel dissenkronidir. Papiller adele dissenkronisi de fonksiyonel mitral yetersizliğine katkıda bulunan nedenlerden biridir. Sistolik kalp yetersizliği olan hastalarda -bazı durumlarda yanıt alına-mayabilirse de-kardiyak resenkronizasyon tedavisi ile fonksiyonel mitral yetersizliğinin gerilediği bilinir. Papiller adele dissenkronisi fonksiyonel mitral yetersizliğinin gerilemesi bakımından kardiyak resenkronizasyon tedavisine yanıtı tahmin edebilir ve koroner revaskülarizasyon, mitral onarım veya kardiyak resenkronizasyon tedavisi gibi farklı tedavilerden hangisinin seçileceği ya da beraber uygulanacağı konusunda yol göste-rici olabilir. Bu derlemede fonksiyonel mitral yetersizliğinin mekanizmaları, papiller adele dissenkronisi ve fonksiyonel mitral yetersizliği arasın-daki ilişki, papiller adele dissenkronisi ile kardiyak resenkronizasyon tedavisi sonrası fonksiyonel mitral yetersizliğindeki gerileme arasındaki ilişki incelenmiştir. ABSTRACTIn a dilated heart with impaired systolic functions, functional mitral regurgitation could be seen even in the presence of structurally normal mitral apparatus. A number of mechanisms play role in the development of functional mitral regurgitation. These are increased mitral tethering forces, reduction in closing forces and mechanical and electrical dyssynchrony. Papillary muscle dyssynchrony has also been shown to be related with functional mitral regurgitation. Cardiac resynchronization therapy is known to reduce the amount of functional mitral regurgitation in patients with left ventricular systolic failure although some may not respond to treatment with cardiac resynchronization therapy. Papillary muscle dyssynchrony may predict the response of cardiac resynchronization therapy on the regression of functional mitral regurgitation and may suggest the suitable therapeutic options, such as cardiac resynchronization therapy, mitral valve repair, coronary revascularization separately or in combination. In this review, the mechanisms of functional mitral regurgitation, papillary muscle dyssynchrony and its relationship with functional mitral regurgitation and the relationship of papillary muscle dyssynchrony with the improvement of functional mitral regurgitation after cardiac resynchronization therapy are focused. (Anadolu Kardiyol Derg 2011; 11: 450-5)

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Quantitation of mitral valve tenting in ischemic mitral regurgitation by transthoracic real-time three-dimensional echocardiography

Abstract: We clearly demonstrated 3D geometric deformity of the mitral leaflets and annulus in ischemic MR using novel software for creating images by 3D echocardiography. This technique will be helpful in making a proper decision for the surgical strategy in each patient.

Cited by 173 publications

References 28 publications

Noninvasive Measurements of the Mitral Annulus Geometry by Newly-developed Quantitation Software With Real-time Three-dimensional Echocardiography: A Validation Study

Noninvasive Measurements of the Mitral Annulus Geometry by Newly-developed Quantitation Software With Real-time Three-dimensional Echocardiography: A Validation Study

Ischemic Mitral Regurgitation: From New Understanding to New Solutions Role of Echocardiography

Functional mitral regurgitation and papillary muscle dyssynchrony in patients with left ventricular systolic dysfunction

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