EXPERIMENTAL STUDY
Mechanism of ischemic mitral regurgitation with segmental left ventricular dysfunction: three-dimensional echocardiographic studies in models of acute and chronic progressive regurgitation
Yutaka Otsuji, MD, FACCa,
Mark D. Handschumacher, BSa,
Noah Liel-Cohen, MDa,
Hiroaki Tanabe, MDa,
Leng Jiang, MD, FACCa,
Ehud Schwammenthal, MD, PhDa,
J. Luis Guerrero, BSa,
Lori A. Nicholls, BSa,
Gus J. Vlahakes, MD, FACCa and
Robert A. Levine, MD, FACCa
a Cardiac Ultrasound Laboratory and Cardiovascular Surgical Unit, Massachusetts General Hospital, Departments of Medicine and Surgery, Harvard Medical School, Boston, Massachusetts, USA
Manuscript received February 9, 2000;
revised manuscript received August 31, 2000,
accepted October 12, 2000.
Reprint requests and correspondence: Dr. Robert A. Levine, Cardiac Ultrasound Laboratory, Massachusetts General Hospital, VBK 508, 32 Fruit St., Boston, Massachusetts 02114-2698 rlevine{at}partners.org
OBJECTIVES
This study aimed to separate proposed mechanisms for segmental ischemic mitral regurgitation (MR), including left ventricular (LV) dysfunction versus geometric distortion by LV dilation, using models of acute and chronic segmental ischemic LV dysfunction evaluated by three-dimensional (3D) echocardiography.
BACKGROUND
Dysfunction and dilationboth mechanisms with practical therapeutic implicationsare difficult to separate in patients.
METHODS
In seven dogs with acute left circumflex (LCX) coronary ligation, LV expansion was initially restricted and then permitted to occur. In seven sheep with LCX branch ligation, LV expansion was also initially limited but became prominent with remodeling over eight weeks. Three-dimensional echo reconstruction quantified mitral apparatus geometry and MR volume.
RESULTS
In the acute model, despite LV dysfunction with ejection fraction = 23 ± 8%, MR was initially trace with limited LV dilation, but it became moderate with subsequent prominent dilation. In the chronic model, MR was also initially trace, but it became moderate over eight weeks as the LV dilated and changed shape. In both models, the only independent predictor of MR volume was increased tethering distance from the papillary muscles (PMs) to the anterior annulus, especially medial and posterior shift of the ischemic medial PM, measured by 3D reconstruction (r2 = 0.75 and 0.86, respectively). Mitral regurgitation volume did not correlate with LV ejection fraction or dP/dt.
CONCLUSIONS
Segmental ischemic LV contractile dysfunction without dilation, even in the PM territory, fails to produce important MR. The development of MR relates strongly to changes in the 3D geometry of the mitral apparatus, with implications for approaches to restore a more favorable configuration.
|
Abbreviations and Acronyms
| | ANOVA | = analysis of variance | | EF | = ejection fraction | | IMLC | = incomplete mitral leaflet closure | | LA | = left atrium | | LCX | = left circumflex coronary artery | | LV | = left ventricle | | MR | = mitral regurgitation | | MROA | = mitral regurgitant orifice area | | PM | = papillary muscle | | 3D | = three-dimensional | | 2D | = two-dimensional |
|
This article has been cited by other articles:

|
 |

|
 |
 
P. G. Bruno, C. Leva, L. Santambrogio, I. Lazzarini, G. Musazzi, G. Del Rosso, and G. Di Credico
Early Clinical Experience and Echocardiographic Results With a New Semirigid Mitral Annuloplasty Ring: The Sorin Memo 3D.
Ann. Thorac. Surg.,
November 1, 2009;
88(5):
1492 - 1498.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
M. V. Badiwala, S. Verma, and V. Rao
Surgical Management of Ischemic Mitral Regurgitation
Circulation,
September 29, 2009;
120(13):
1287 - 1293.
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
K. Takahashi, A. Inage, I.M. Rebeyka, D.B. Ross, R.B. Thompson, A.S. Mackie, and J.F. Smallhorn
Real-Time 3-Dimensional Echocardiography Provides New Insight Into Mechanisms of Tricuspid Valve Regurgitation in Patients With Hypoplastic Left Heart Syndrome
Circulation,
September 22, 2009;
120(12):
1091 - 1098.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
F. Onorati, A. S. Rubino, D. Marturano, E. Pasceri, G. Santarpino, S. Zinzi, G. Mascaro, and A. Renzulli
Midterm clinical and echocardiographic results and predictors of mitral regurgitation recurrence following restrictive annuloplasty for ischemic cardiomyopathy.
J. Thorac. Cardiovasc. Surg.,
September 1, 2009;
138(3):
654 - 662.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
F. Onorati, A. S. Rubino, D. Marturano, E. Pasceri, G. Mascaro, S. Zinzi, F. Serraino, and A. Renzulli
Mid-term echocardiographic results with different rings following restrictive mitral annuloplasty for ischaemic cardiomiopathy
Eur. J. Cardiothorac. Surg.,
August 1, 2009;
36(2):
250 - 260.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
J. P. Dal-Bianco, E. Aikawa, J. Bischoff, J. L. Guerrero, M. D. Handschumacher, S. Sullivan, B. Johnson, J. S. Titus, Y. Iwamoto, J. Wylie-Sears, et al.
Active Adaptation of the Tethered Mitral Valve: Insights Into a Compensatory Mechanism for Functional Mitral Regurgitation
Circulation,
July 28, 2009;
120(4):
334 - 342.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
C. Sonne, L. Sugeng, N. Watanabe, L. Weinert, K. Saito, M. Tsukiji, K. Yoshida, M. Takeuchi, V. Mor-Avi, and R. M. Lang
Age and body surface area dependency of mitral valve and papillary apparatus parameters: assessment by real-time three-dimensional echocardiography
Eur J Echocardiogr,
March 1, 2009;
10(2):
287 - 294.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
F. Veronesi, C. Corsi, L. Sugeng, V. Mor-Avi, E. G. Caiani, L. Weinert, C. Lamberti, and R. M. Lang
A Study of Functional Anatomy of Aortic-Mitral Valve Coupling Using 3D Matrix Transesophageal Echocardiography
Circ Cardiovasc Imaging,
January 1, 2009;
2(1):
24 - 31.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
T. A. Armen, R. Vandse, J. A. Crestanello, S. V. Raman, K. M. Bickle, and N. S. Nathan
Mechanisms of valve competency after mitral valve annuloplasty for ischaemic mitral regurgitation using the Geoform ring: insights from three-dimensional echocardiography
Eur J Echocardiogr,
January 1, 2009;
10(1):
74 - 81.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
S. Masuyama, A. Marui, T. Shimamoto, M. Nonaka, M. Tsukiji, N. Watanabe, T. Ikeda, K. Yoshida, and M. Komeda
Chordal translocation for ischemic mitral regurgitation may ameliorate tethering of the posterior and anterior mitral leaflets.
J. Thorac. Cardiovasc. Surg.,
October 1, 2008;
136(4):
868 - 875.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
J-M Song, M-J Kim, Y-J Kim, S-H Kang, J-J Kim, D-H Kang, and J-K Song
Three-dimensional characteristics of functional mitral regurgitation in patients with severe left ventricular dysfunction: a real-time three-dimensional colour Doppler echocardiography study
Heart,
May 1, 2008;
94(5):
590 - 596.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
E. Agricola, M. Oppizzi, M. Pisani, A. Meris, F. Maisano, and A. Margonato
Ischemic mitral regurgitation: mechanisms and echocardiographic classification
Eur J Echocardiogr,
March 1, 2008;
9(2):
207 - 221.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
P. W.M. Fedak, P. M. McCarthy, and R. O. Bonow
Evolving Concepts and Technologies in Mitral Valve Repair
Circulation,
February 19, 2008;
117(7):
963 - 974.
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
R. Beeri, C. Yosefy, J. L. Guerrero, F. Nesta, S. Abedat, M. Chaput, F. del Monte, M. D. Handschumacher, R. Stroud, S. Sullivan, et al.
Mitral regurgitation augments post-myocardial infarction remodeling failure of hypertrophic compensation.
J. Am. Coll. Cardiol.,
January 29, 2008;
51(4):
476 - 486.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
J. I. Fann, N. B. Ingels Jr., and D. C. Miller
Pathophysiology of Mitral Valve Disease
Card. Surg. Adult,
January 1, 2008;
3(2008):
973 - 1012.
[Full Text]
|
 |
|

|
 |

|
 |
 
A. Rama, L. Praschker, E. Barreda, and I. Gandjbakhch
Papillary Muscle Approximation for Functional Ischemic Mitral Regurgitation
Ann. Thorac. Surg.,
December 1, 2007;
84(6):
2130 - 2131.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
L. Perez de Isla, J. Zamorano, M. Quezada, C. Almeria, J. L. Rodrigo, V. Serra, J. C. Garcia Rubira, A. F. Ortiz, and C. Macaya
Functional mitral regurgitation after a first non-ST-segment elevation acute coronary syndrome: contribution to congestive heart failure
Eur. Heart J.,
December 1, 2007;
28(23):
2866 - 2872.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
L. P. Ryan, B. M. Jackson, L. M. Parish, H. Sakamoto, T. J. Plappert, M. St. John-Sutton, J. H. Gorman III, and R. C. Gorman
Mitral Valve Tenting Index for Assessment of Subvalvular Remodeling
Ann. Thorac. Surg.,
October 1, 2007;
84(4):
1243 - 1249.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
R. Beeri, C. Yosefy, J. L. Guerrero, S. Abedat, M. D. Handschumacher, R. E. Stroud, S. Sullivan, M. Chaput, D. Gilon, G. J. Vlahakes, et al.
Early Repair of Moderate Ischemic Mitral Regurgitation Reverses Left Ventricular Remodeling: A Functional and Molecular Study
Circulation,
September 11, 2007;
116(11_suppl):
I-288 - I-293.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
J. Kwan, M. A. Gillinov, J. D. Thomas, and T. Shiota
Geometric predictor of significant mitral regurgitation in patients with severe ischemic cardiomyopathy, undergoing Dor procedure: A real-time 3D echocardiographic study
Eur J Echocardiogr,
June 1, 2007;
8(3):
195 - 203.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
L. Ryan, B. Jackson, L. Parish, H. Sakamoto, T. Plappert, M. St. J. Sutton, J. Gorman III, and R. Gorman
Quantification and localization of mitral valve tenting in ischemic mitral regurgitation using real-time three-dimensional echocardiography
Eur. J. Cardiothorac. Surg.,
May 1, 2007;
31(5):
839 - 844.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
G. Barletta, A. Toso, R. Del Bene, M. Di Donato, M. Sabatier, and V. Dor
Preoperative and Late Postoperative Mitral Regurgitation in Ventricular Reconstruction: Role of Local Left Ventricular Deformation
Ann. Thorac. Surg.,
December 1, 2006;
82(6):
2102 - 2109.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
R. M. Lang, V. Mor-Avi, L. Sugeng, P. S. Nieman, and D. J. Sahn
Three-Dimensional Echocardiography: The Benefits of the Additional Dimension
J. Am. Coll. Cardiol.,
November 21, 2006;
48(10):
2053 - 2069.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
L. Perez de Isla, J. Zamorano, M. Quezada, C. Almeria, J. L. Rodrigo, V. Serra, J. C. Garcia Rubira, A. F. Ortiz, and C. Macaya
Prognostic significance of functional mitral regurgitation after a first non-ST-segment elevation acute coronary syndrome
Eur. Heart J.,
November 2, 2006;
27(22):
2655 - 2660.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
M. Daimon, S. Fukuda, D. H. Adams, P. M. McCarthy, A. M. Gillinov, A. Carpentier, F. Filsoufi, V. M. Abascal, V. H. Rigolin, S. Salzberg, et al.
Mitral Valve Repair With Carpentier-McCarthy-Adams IMR ETlogix Annuloplasty Ring for Ischemic Mitral Regurgitation: Early Echocardiographic Results From a Multi-Center Study
Circulation,
July 4, 2006;
114(1_suppl):
I-588 - I-593.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
E. Messas, A. Bel, M. C. Morichetti, C. Carrion, M. D. Handschumacher, S. Peyrard, J. T. Vilquin, M. Desnos, P. Bruneval, A. Carpentier, et al.
Autologous Myoblast Transplantation for Chronic Ischemic Mitral Regurgitation
J. Am. Coll. Cardiol.,
May 16, 2006;
47(10):
2086 - 2093.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
V. Gabriel, O. Kamp, and C. A. Visser
Three-dimensional echocardiography in mitral valve disease
Eur J Echocardiogr,
December 1, 2005;
6(6):
443 - 454.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
H.-Y. Yu, M.-Y. Su, Y.-S. Chen, F.-Y. Lin, and W.-Y. I. Tseng
Mitral tetrahedron as a geometrical surrogate for chronic ischemic mitral regurgitation
Am J Physiol Heart Circ Physiol,
September 1, 2005;
289(3):
H1218 - H1225.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
S. Kaji, M. Nasu, A. Yamamuro, K. Tanabe, K. Nagai, T. Tani, K. Tamita, K. Shiratori, M. Kinoshita, M. Senda, et al.
Annular Geometry in Patients With Chronic Ischemic Mitral Regurgitation: Three-Dimensional Magnetic Resonance Imaging Study
Circulation,
August 30, 2005;
112(9_suppl):
I-409 - I-414.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
R. A. Levine and E. Schwammenthal
Ischemic Mitral Regurgitation on the Threshold of a Solution: From Paradoxes to Unifying Concepts
Circulation,
August 2, 2005;
112(5):
745 - 758.
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
E. Schwammenthal and R. A. Levine
The non-ischaemic dynamics of ischaemic mitral regurgitation: solving the paradox
Eur. Heart J.,
August 1, 2005;
26(15):
1454 - 1455.
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
T. Uemura, Y. Otsuji, K. Nakashiki, S. Yoshifuku, Y. Maki, B. Yu, N. Mizukami, E. Kuwahara, S. Hamasaki, S. Biro, et al.
Papillary Muscle Dysfunction Attenuates Ischemic Mitral Regurgitation in Patients With Localized Basal Inferior Left Ventricular Remodeling: Insights From Tissue Doppler Strain Imaging
J. Am. Coll. Cardiol.,
July 5, 2005;
46(1):
113 - 119.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
M. B. Srichai, R. A. Grimm, A. E. Stillman, A. M. Gillinov, L. L. Rodriguez, M. L. Lieber, A. Lara, J. A. Weaver, P. M. McCarthy, and R. D. White
Ischemic Mitral Regurgitation: Impact of the Left Ventricle and Mitral Valve in Patients with Left Ventricular Systolic Dysfunction
Ann. Thorac. Surg.,
July 1, 2005;
80(1):
170 - 178.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
F. A. Tibayan, F. Rodriguez, F. Langer, M. K. Zasio, L. Bailey, D. Liang, G. T. Daughters, N. B. Ingels Jr, and D. C. Miller
Annular or subvalvular approach to chronic ischemic mitral regurgitation?
J. Thorac. Cardiovasc. Surg.,
June 1, 2005;
129(6):
1266 - 1275.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
M. Daimon, T. Shiota, A. M. Gillinov, M. Hayase, M. Ruel, W. E. Cohn, S. J. Blacker, and J. R. Liddicoat
Percutaneous Mitral Valve Repair for Chronic Ischemic Mitral Regurgitation: A Real-Time Three-Dimensional Echocardiographic Study in an Ovine Model
Circulation,
May 3, 2005;
111(17):
2183 - 2189.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
N. Watanabe, Y. Ogasawara, Y. Yamaura, T. Kawamoto, E. Toyota, T. Akasaka, and K. Yoshida
Quantitation of mitral valve tenting in ischemic mitral regurgitation by transthoracic real-time three-dimensional echocardiography
J. Am. Coll. Cardiol.,
March 1, 2005;
45(5):
763 - 769.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
A. Delabays, X. Jeanrenaud, P.-G. Chassot, L.K. Von Segesser, and L. Kappenberger
Localization and quantification of mitral valve prolapse using three-dimensional echocardiography
Eur J Echocardiogr,
December 1, 2004;
5(6):
422 - 429.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
H.-Y. Yu, M.-Y. Su, T.-Y. Liao, H.-H. Peng, F.-Y. Lin, and W.-Y. I. Tseng
Functional mitral regurgitation in chronic ischemic coronary artery disease: Analysis of geometric alterations of mitral apparatus with magnetic resonance imaging
J. Thorac. Cardiovasc. Surg.,
October 1, 2004;
128(4):
543 - 551.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
R. A. Levine, E. Messas, N. S. Nathan, and L. G. Rudski
New understanding of ischemic mitral regurgitation: the marionette and its masters
Eur J Echocardiogr,
October 1, 2004;
5(5):
313 - 317.
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
E. Agricola, M. Oppizzi, F. Maisano, M. De Bonis, A. F.L. Schinkel, L. Torracca, A. Margonato, G. Melisurgo, and O. Alfieri
Echocardiographic classification of chronic ischemic mitral regurgitation caused by restricted motion according to tethering pattern
Eur J Echocardiogr,
October 1, 2004;
5(5):
326 - 334.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
J. Hung, L. Papakostas, S. A. Tahta, B. G. Hardy, B. A. Bollen, C. M. Duran, and R. A. Levine
Mechanism of Recurrent Ischemic Mitral Regurgitation After Annuloplasty: Continued LV Remodeling as a Moving Target
Circulation,
September 14, 2004;
110(11_suppl_1):
II-85 - II-90.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
H. K. Eltzschig, S. K. Shernan, and P. Rosenberger
Ischemic Mitral Regurgitation during Temporary Coronary-Artery Ligation
N. Engl. J. Med.,
June 3, 2004;
350(23):
2424 - 2425.
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
G. G. Pellizzon, C. L. Grines, D. A. Cox, T. Stuckey, J. E. Tcheng, E. Garcia, G. Guagliumi, M. Turco, A. J. Lansky, J. J. Griffin, et al.
Importance of mitral regurgitation inpatients undergoing percutaneous coronaryintervention for acute myocardial infarction: The Controlled Abciximab and Device Investigation to Lower Late Angioplasty Complications (CADILLAC) Trial
J. Am. Coll. Cardiol.,
April 21, 2004;
43(8):
1368 - 1374.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
M. Inoue, P. M. McCarthy, Z. B. Popovic, K. Doi, S. Schenk, H. Nemeh, Y. Ootaki, M. W. Kopcak Jr, R. Dessoffy, J. D. Thomas, et al.
The Coapsys device to treat functional mitral regurgitation: In vivo long-term canine study
J. Thorac. Cardiovasc. Surg.,
April 1, 2004;
127(4):
1068 - 1077.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
F. A. Tibayan, F. Rodriguez, F. Langer, M. K. Zasio, L. Bailey, D. Liang, G. T. Daughters, N. B. Ingels Jr, and D. C. Miller
Does septal-lateral annular cinching work for chronic ischemic mitral regurgitation?
J. Thorac. Cardiovasc. Surg.,
March 1, 2004;
127(3):
654 - 663.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
F. A. Tibayan, F. Rodriguez, F. Langer, M. K. Zasio, L. Bailey, D. Liang, G. T. Daughters, N. B. Ingels Jr, and D. C. Miller
Annular remodeling in chronic ischemic mitral regurgitation: ring selection implications
Ann. Thorac. Surg.,
November 1, 2003;
76(5):
1549 - 1555.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
J. H. Gorman III, R. C. Gorman, B. M. Jackson, Y. Enomoto, M. G. St. John-Sutton, and L. H. Edmunds Jr
Annuloplasty ring selection for chronic ischemic mitral regurgitation: lessons from the ovine model
Ann. Thorac. Surg.,
November 1, 2003;
76(5):
1556 - 1563.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
S E Karagiannis, G T Karatasakis, N Koutsogiannis, G D Athanasopoulos, and D V Cokkinos
Increased distance between mitral valve coaptation point and mitral annular plane: significance and correlations in patients with heart failure
Heart,
October 1, 2003;
89(10):
1174 - 1178.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
B. H. Trichon, D. D. Glower, L. K. Shaw, C. H. Cabell, K. J. Anstrom, G. M. Felker, and C. M. O'Connor
Survival After Coronary Revascularization, With and Without Mitral Valve Surgery, in Patients With Ischemic Mitral Regurgitation
Circulation,
September 9, 2003;
108(90101):
II-103 - 110.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
F. A. Tibayan, F. Rodriguez, M. K. Zasio, L. Bailey, D. Liang, G. T. Daughters, F. Langer, N. B. Ingels Jr, and D. C. Miller
Geometric Distortions of the Mitral Valvular-Ventricular Complex in Chronic Ischemic Mitral Regurgitation
Circulation,
September 9, 2003;
108(90101):
II-116 - 121.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
F. A. Tibayan, F. Rodriguez, D. Liang, G. T. Daughters, N. B. Ingels Jr, and D. C. Miller
Paneth Suture Annuloplasty Abolishes Acute Ischemic Mitral Regurgitation but Preserves Annular and Leaflet Dynamics
Circulation,
September 9, 2003;
108(90101):
II-128 - 133.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
O. A. Breithardt, A. M. Sinha, E. Schwammenthal, N. Bidaoui, K. U. Markus, A. Franke, and C. Stellbrink
Acute effects of cardiac resynchronization therapy on functional mitral regurgitation in advanced systolic heart failure
J. Am. Coll. Cardiol.,
March 5, 2003;
41(5):
765 - 770.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
J. Kwan, T. Shiota, D. A. Agler, Z. B. Popovic, J. X. Qin, M. A. Gillinov, W. J. Stewart, D. M. Cosgrove, P. M. McCarthy, and J. D. Thomas
Geometric Differences of the Mitral Apparatus Between Ischemic and Dilated Cardiomyopathy With Significant Mitral Regurgitation: Real-Time Three-Dimensional Echocardiography Study
Circulation,
March 4, 2003;
107(8):
1135 - 1140.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
T. A. Timek, D. T. Lai, F. Tibayan, D. Liang, G. T. Daughters, P. Dagum, M. K. Zasio, S. Lo, T. Hastie, N. B. Ingels Jr, et al.
Ischemia in three left ventricular regions: Insights into the pathogenesis of acute ischemic mitral regurgitation
J. Thorac. Cardiovasc. Surg.,
March 1, 2003;
125(3):
559 - 569.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
D. C. Miller
Ischemic mitral regurgitation redux--to repair or to replace?
J. Thorac. Cardiovasc. Surg.,
March 1, 2003;
125(90030):
S58 - 61.
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
M. H. Picard, R. Davidoff, L. A. Sleeper, L. A. Mendes, C. R. Thompson, V. Dzavik, R. Steingart, K. Gin, H. D. White, J. S. Hochman, et al.
Echocardiographic Predictors of Survival and Response to Early Revascularization in Cardiogenic Shock
Circulation,
January 21, 2003;
107(2):
279 - 284.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
T. Kumanohoso, Y. Otsuji, S. Yoshifuku, K. Matsukida, C. Koriyama, A. Kisanuki, S. Minagoe, R. A. Levine, and C. Tei
Mechanism of higher incidence of ischemic mitral regurgitation in patients with inferior myocardial infarction: Quantitative analysis of left ventricular and mitral valve geometry in 103 patients with prior myocardial infarction
J. Thorac. Cardiovasc. Surg.,
January 1, 2003;
125(1):
135 - 143.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
R. C. Gorman, J. H. Gorman III, and L. H. Edmunds Jr.
Ischemic Mitral Regurgitation
Card. Surg. Adult,
January 1, 2003;
2(2003):
751 - 769.
[Full Text]
|
 |
|

|
 |

|
 |
 
J. I. Fann, N. B. Ingels Jr., and D. C. Miller
Pathophysiology of Mitral Valve Disease
Card. Surg. Adult,
January 1, 2003;
2(2003):
901 - 931.
[Full Text]
|
 |
|

|
 |

|
 |
 
D. T. Lai, T. A. Timek, F. A. Tibayan, G. R. Green, G. T. Daughters, D. Liang, N. B. Ingels Jr, and D. C. Miller
The effects of mitral annuloplasty rings on mitral valve complex 3-D geometry during acute left ventricular ischemia
Eur. J. Cardiothorac. Surg.,
November 1, 2002;
22(5):
808 - 816.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
T. A. Timek, D. T. Lai, F. Tibayan, D. Liang, F. Rodriguez, G. T. Daughters, P. Dagum, N. B. Ingels Jr, and C. Miller
Annular Versus Subvalvular Approaches to Acute Ischemic Mitral Regurgitation
Circulation,
September 24, 2002;
106(12_suppl_1):
I-27 - I-32.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
Y. Otsuji, T. Kumanohoso, S. Yoshifuku, K. Matsukida, C. Koriyama, A. Kisanuki, S. Minagoe, R. A. Levine, and C. Tei
Isolated annular dilation does not usually cause important functional mitral regurgitation: Comparison between patients with lone atrial fibrillation and those with idiopathic or ischemic cardiomyopathy
J. Am. Coll. Cardiol.,
May 15, 2002;
39(10):
1651 - 1656.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
G Breithardt, H Kuhn, D Hammel, H.-H Scheld, L Seipel, and D. Bocker
Cardiac resynchronization therapy into the next decade: from the past to morbidity/mortality trials
Eur. Heart J. Suppl.,
April 1, 2002;
4(suppl_D):
D102 - D110.
[Abstract]
[PDF]
|
 |
|

|
 |

|
 |
 
D. C. Miller
Ischemic mitral regurgitation redux--To repair or to replace?
J. Thorac. Cardiovasc. Surg.,
December 1, 2001;
122(6):
1059 - 1062.
[Full Text]
[PDF]
|
 |
|
|