Mitral annular geometry in mitral regurgitation

2020 ◽  
Author(s):  
Ryan Markham

2014 ◽  
Vol 97 (1) ◽  
pp. 64-70 ◽  
Author(s):  
Arminder S. Jassar ◽  
Mathieu Vergnat ◽  
Benjamin M. Jackson ◽  
Jeremy R. McGarvey ◽  
Albert T. Cheung ◽  
...  


2008 ◽  
Vol 25 (4) ◽  
pp. 414-423 ◽  
Author(s):  
Masao Daimon ◽  
Giuseppe Saracino ◽  
A. Marc Gillinov ◽  
Yasushi Koyama ◽  
Shota Fukuda ◽  
...  


2010 ◽  
Vol 23 (8) ◽  
pp. 872-879 ◽  
Author(s):  
Stephen H. Little ◽  
Sagit Ben Zekry ◽  
Gerald M. Lawrie ◽  
William A. Zoghbi


2008 ◽  
Vol 136 (3) ◽  
pp. 557-565 ◽  
Author(s):  
Tom C. Nguyen ◽  
Akinobu Itoh ◽  
Carl J. Carlhäll ◽  
Wolfgang Bothe ◽  
Tomasz A. Timek ◽  
...  




2013 ◽  
Vol 95 (1) ◽  
pp. 105-110 ◽  
Author(s):  
Kamal R. Khabbaz ◽  
Feroze Mahmood ◽  
Omair Shakil ◽  
Haider J. Warraich ◽  
Joseph H. Gorman ◽  
...  


Circulation ◽  
2005 ◽  
Vol 112 (9_supplement) ◽  
Author(s):  
Shuichiro Kaji ◽  
Michihiro Nasu ◽  
Atsushi Yamamuro ◽  
Kazuaki Tanabe ◽  
Kunihiko Nagai ◽  
...  

Background— Although animal studies showed that annular remodeling may be related to the pathogenesis of chronic ischemic mitral regurgitation (CIMR), little was known in humans. A better understanding of the precise 3D geometry of the mitral valvular-ventricular complex in CIMR is needed to devise a better surgical technique. The purpose of the study was to elucidate mitral annular geometry in patients with CIMR using cardiac MRI. Methods and Results— Thirty-eight patients with previous inferior or posterior myocardial infarction were studied. With the 3D reconstruction of the mitral annulus and subvalvular apparatus from a series of longitudinal cine MRIs, end-systolic mitral annulus dimensions and 3D geometry were calculated. Patients were grouped by mitral regurgitation grade using echocardiography (≥2+, n=15 versus ≤1+, n=23). Both septal-lateral and commissure-commissure mitral annular diameters were significantly greater in CIMR(+) patients (35±5 versus 30±4 mm, P =0.005; 46±6 versus 39±4 mm, P <0.001, respectively). The length of the fibrous annulus was significantly larger in CIMR(+) patients (28±3 versus 24±3 mm; P <0.001). The height of the annular “saddle horn” above a best-fit plane was lower in CIMR(+) patients (4.2±1.2 versus 6.0±1.8 mm; P =0.002), and the annular height to commissural width ratio was significantly lower in CIMR(+) patients (12±3 versus 21±5%; P <0.001). Conclusions— Patients with CIMR had greater septal-lateral and commissure-commissure mitral annular dimension, larger intertrigonal distance, and flattened saddle shape of mitral annulus. These associated geometric alterations may be important in the pathogenesis of CIMR.





2010 ◽  
Vol 27 (9) ◽  
pp. 1069-1077 ◽  
Author(s):  
Masao Daimon ◽  
Giuseppe Saracino ◽  
Shota Fukuda ◽  
Yasushi Koyama ◽  
Jun Kwan ◽  
...  


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