scholarly journals Mitral Valve Replacement with a Mechanical Valve for Severe Mitral Regurgitation in a Small Dog

2014 ◽  
Vol 2014 ◽  
pp. 1-5
Author(s):  
Daisuke Taguchi ◽  
Isamu Kanemoto ◽  
Satoko Yokoyama ◽  
Masashi Mizuno ◽  
Makoto Washizu
Keyword(s):  
Mitral Valve ◽  
Mitral Regurgitation ◽  
Valve Replacement ◽  
Mitral Valve Replacement ◽  
Warfarin Therapy ◽  
Mechanical Valve ◽  
Severe Mitral Regurgitation ◽  
Mitral Valve Plasty ◽  
Class D

A seven-year-old Shih Tzu with refractory repeated pulmonary edema and syncope was presented for surgical operation. From the results of cardiovascular examinations, the dog was diagnosed as severe mitral regurgitation (ACVIM consensus class D) and mild tricuspid regurgitation. The dog first underwent surgery with mitral valve plasty; however, the results were unsatisfactory due to severe damage of the whole mitral valve. The operation was quickly changed to mitral valve replacement using a mechanical valve (19 mm). The dog survived surgery and lived for 2 years and one month after operation using long-term anticoagulant (warfarin) therapy in spite of several thrombosis-related events.

scholarly journals Mitral valve replacement in a 12 year old boy with Marfan syndrome and severe mitral regurgitation

2017 ◽  
Vol 10 (1) ◽  
pp. 38
Author(s):  
Md. Alauddin ◽  
Kamrun Nahar ◽  
Golam Mokthader Khan ◽  
Karan Rai ◽  
Mostafizur Rahman ◽  
...  
Keyword(s):  
Mitral Valve ◽  
Mitral Regurgitation ◽  
Marfan Syndrome ◽  
Valve Replacement ◽  
Mitral Valve Replacement ◽  
Surgical Intervention ◽  
Severe Mitral Regurgitation ◽  
Careful Evaluation ◽  
Term Survival

<p>A 12 year old boy with Marfan syndrome associated with severe mitral regurgitation underwent successful mitral valve replacement. Careful evaluation of the cardiovascular system and specific surgical intervention help long-term survival of  patients.</p>

Biatrial Approach for Bicameral Myxoma with Mitral Regurgitation

2000 ◽  
Vol 8 (2) ◽  
pp. 167-168 ◽  
Author(s):  
Pankaj Goel ◽  
Nainar Madhu Sankar ◽  
Sethurathinam Rajan ◽  
Kotturathu Mammen Cherian
Keyword(s):  
Mitral Valve ◽  
Left Ventricle ◽  
Mitral Regurgitation ◽  
Left Atrium ◽  
Valve Replacement ◽  
Mitral Valve Replacement ◽  
Severe Mitral Regurgitation ◽  
Two Dimensional ◽  
Dimensional Echocardiography ◽  
Two Dimensional Echocardiography

A 16-year-old girl presented with an episode of syncope. Two-dimensional echocardiography revealed masses in the left atrium and left ventricle with severe mitral regurgitation. She underwent removal of myxomas and mitral valve replacement using an extended biatrial approach.

Abstract 2286: Short- and Long-Term Survival of Mitral Valve Repair Versus Mitral Valve Replacement in Patients with Functional Mitral Regurgitation

Circulation ◽  
2008 ◽  
Vol 118 (suppl_18) ◽  
Author(s):  
Julien Magne ◽  
Mario Senechal ◽  
Patrick Mathieu ◽  
François Dagenais ◽  
Jean G Dumesnil ◽  
...  
Keyword(s):  
Surgical Treatment ◽  
Mitral Valve ◽  
Mitral Regurgitation ◽  
Valve Replacement ◽  
Mitral Valve Replacement ◽  
Mitral Valve Repair ◽  
Valve Repair ◽  
Term Survival ◽  
Long Term Mortality

Mitral valve repair (MVRp) is associated with better survival in patients with organic mitral regurgitation (MR) when compared to mitral valve replacement (MVR). However, there is an important controversy about the type of surgical treatment that should be used in patients with functional MR (FMR). The aim of this study was to compare MVRp (i.e. restrictive annuloplasty) and MVR in patients with FMR. Pre- and operative demographic and clinical data of 392 patients (64% of male, mean age: 65±10 years) with FMR who underwent mitral surgery between 1992 and 2007 were prospectively collected in a computerized database. MVRp was performed in 52% of patients (n=204) and MVR in 48% (n=188). Compared to patients undergoing MVRp, those with MVR were significantly more frequently symptomatic (77% vs. 59%, p=0.0002), had lower left ventricular ejection fraction (LVEF) (40±15%, vs. 46±15%, p=0.0003) and had higher prevalence of pulmonary hypertension (36% vs. 24%, p=0.01) preoperatively. However, there was no significant difference between the 2 groups with regards to age, gender, MR severity, diabetes, obesity, systemic hypertension and atrial fibrillation (p>0.3). Although operative mortality was significantly lower after MVRp compared to MVR (9% vs. 17%, p=0.02), long-term survival was not statistically different between procedures (6 years: 74±4% vs. 72±4%; 12 years: 54±5% vs. 52±7%; p=0.58). After adjusting for other risk factors, the type of procedure (MVRp vs. MVR) did not come out as an independent predictor of either operative (Odds-ratio=1.7, 95% confidence interval [CI]: 0.8 –3.8, p=0.15) or long-term mortality (Hazard-ratio [HR]=1.1, 95%CI: 0.9 –1.4, p=0.29). The independent predictors of long-term mortality were age (HR= 1.04, 95%CI: 1.01–1.07, p=0.003), NYHA class ≥III (HR=1.4, 95%CI: 1.1–2, p=0.02) and LVEF (HR=1.02, 95%CI: 1.01–1.04, p=0.0009). As opposed to what has been reported in patients with organic MR, there is no evidence that MVRp provides any benefit in terms of survival compared to MVR in patients with FMR. These findings suggest that MVRp is not an optimal surgical treatment for FMR and provide an impetus toward the development of new surgical approaches for these patients.

scholarly journals Echocardiographic versus Histologic Findings in Marfan Syndrome

2015 ◽  
Vol 42 (1) ◽  
pp. 30-34 ◽  
Author(s):  
Xiaoyan Gu ◽  
Yihua He ◽  
Zhian Li ◽  
Jiancheng Han ◽  
Jian Chen ◽  
...  
Keyword(s):  
Mitral Valve ◽  
Mitral Regurgitation ◽  
Aortic Regurgitation ◽  
Marfan Syndrome ◽  
Valve Replacement ◽  
Mitral Valve Replacement ◽  
Severe Mitral Regurgitation ◽  
Severe Aortic Regurgitation ◽  
Myxomatous Degeneration ◽  
Histologic Changes

This retrospective study attempted to establish the prevalence of multiple-valve involvement in Marfan syndrome and to compare echocardiographic with histopathologic findings in Marfan patients undergoing valvular or aortic surgery. We reviewed echocardiograms of 73 Marfan patients who underwent cardiovascular surgery from January 2004 through October 2009. Tissue histology was available for comparison in 29 patients. Among the 73 patients, 66 underwent aortic valve replacement or the Bentall procedure. Histologic findings were available in 29 patients, all of whom had myxomatous degeneration. Of 63 patients with moderate or severe aortic regurgitation as determined by echocardiography, 4 had thickened aortic valves. The echocardiographic findings in 18 patients with mitral involvement included mitral prolapse in 15. Of 11 patients with moderate or severe mitral regurgitation as determined by echocardiography, 4 underwent mitral valve repair and 7 mitral valve replacement. Histologic findings among mitral valve replacement patients showed thickened valve tissue and myxomatous degeneration. Tricuspid involvement was seen echocardiographically in 8 patients, all of whom had tricuspid prolapse. Two patients had severe tricuspid regurgitation, and both underwent repair. Both mitral and tricuspid involvement were seen echocardiographically in 7 patients. Among the 73 patients undergoing cardiac surgery for Marfan syndrome, 66 had moderate or severe aortic regurgitation, although their valves manifested few histologic changes. Eighteen patients had mitral involvement (moderate or severe mitral regurgitation, prolapse, or both), and 8 had tricuspid involvement. Mitral valves were most frequently found to have histologic changes, but the tricuspid valve was invariably involved.

scholarly journals A complex transcatheter mitral valve replacement and repair for the treatment of refractory severe mitral regurgitation

2016 ◽  
Vol 57 (5) ◽  
pp. 348-350 ◽  
Author(s):  
Jose F. Condado ◽  
Vasilis C. Babaliaros ◽  
Vinod H. Thourani ◽  
Hanna K. Jensen ◽  
Dennis W. Kim ◽  
...  
Keyword(s):  
Mitral Valve ◽  
Mitral Regurgitation ◽  
Valve Replacement ◽  
Mitral Valve Replacement ◽  
Severe Mitral Regurgitation ◽  
Transcatheter Mitral Valve Replacement
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