scholarly journals Star GK Bileaflet Mechanical Valve Prosthesis-Patient Mismatch after Mitral Valve Replacement: A Chinese Multicenter Clinical Study

2015 ◽  
Vol 21 ◽  
pp. 2542-2546 ◽  
Author(s):  
Hua Cao ◽  
Zhihuang Qiu ◽  
Liangwan Chen ◽  
Daozhong Chen ◽  
Qiang Chen
Keyword(s):  
Clinical Study ◽  
Mitral Valve ◽  
Valve Replacement ◽  
Mitral Valve Replacement ◽  
Mechanical Valve ◽  
Valve Prosthesis ◽  
Bileaflet Mechanical Valve ◽  
Multicenter Clinical Study

Acute Thrombotic Obstruction of Mitral Valve Prosthesis: Low Protein C Level

2002 ◽  
Vol 10 (2) ◽  
pp. 165-166 ◽  
Author(s):  
Toshihiro Ohata ◽  
Tetsuo Sakakibara ◽  
Hiroshi Takano ◽  
Toru Ishizaka
Keyword(s):  
Mitral Valve ◽  
Valve Replacement ◽  
Mitral Valve Replacement ◽  
Protein C ◽  
Mechanical Valve ◽  
Protein S ◽  
Valve Prosthesis ◽  
Normal Value ◽  
Low Protein ◽  
Mitral Valve Prosthesis

A 51-year-old female underwent redo mitral valve replacement with a pericardial bioprosthesis because of acute thrombotic obstruction of a mechanical valve, in spite of adequate anticoagulation with warfarin. Her protein C level was 24% of the normal value and protein S was reduced to 54% of normal.

Late-term results of mitral valve replacement with St. Jude®mechanical valve prosthesis

2006 ◽  
Vol 61 (5) ◽  
pp. 537-544 ◽  
Author(s):  
Mustafa Kemal DEMIRAG ◽  
Hasan Tahsin KECELIGIL ◽  
Fersat KOLBAKIR
Keyword(s):  
Mitral Valve ◽  
Valve Replacement ◽  
Mitral Valve Replacement ◽  
Mechanical Valve ◽  
Valve Prosthesis

Patient-Specific Approach to Mitral Valve Replacement in Infants Weighing 10 kilograms or less

2019 ◽  
Vol 10 (3) ◽  
pp. 304-312
Author(s):  
Kathryn Mater ◽  
Julian Ayer ◽  
Ian Nicholson ◽  
David Winlaw ◽  
Richard Chard ◽  
...  
Keyword(s):  
Mitral Valve ◽  
Valve Replacement ◽  
Mitral Valve Replacement ◽  
Surgical Techniques ◽  
Somatic Growth ◽  
Mechanical Valve ◽  
Left Ventricular ◽  
Patient Specific ◽  
Mechanical Prostheses

Background: Mitral valve replacement (MVR) is the only option for infants with severe mitral valve disease that is not reparable; however, previously reported outcomes are not always favorable. Our institution has followed a tailored approach to sizing and positioning of mechanical valve prostheses in infants requiring MVR in order to obtain optimal outcomes. Methods: Outcomes for 22 infants ≤10 kg who have undergone MVR in Sydney, Australia, from 1998 to 2016, were analyzed. Patients were at a mean age of 6.8 ± 4.1 months (range: 0.8-13.2 months) and a mean weight of 5.4 ± 1.8 kg at the time of MVR. Most patients (81.8%) had undergone at least one previous cardiac surgical procedure prior to MVR, and 36.4% had undergone two previous procedures. Several surgical techniques were used to implant mechanical bileaflet prostheses. Results: All patients received bileaflet mechanical prostheses, with 12 receiving mitral prostheses and 10 receiving inverted aortic prostheses. Surgical technique varied between patients with valves implanted intra-annularly (n = 6), supra-annularly (n = 11), or supra-annularly with a tilt (n = 5). After a mean follow-up period of 6.2 ± 4.4 years, the survival rate was 100%. Six (27.3%) patients underwent redo MVR a mean of 102.2 ± 10.7 months after initial MVR. Four (18.2%) patients required surgical reintervention for development of left ventricular outflow tract obstruction and three (13.6%) patients required permanent pacemaker placement during long-term follow-up. Conclusions: The tailored surgical strategy utilized for MVR in infants at our institution has resulted in reliable valve function and excellent survival. Although redo is inevitable due to somatic growth, the bileaflet mechanical prostheses used displayed appropriate durability.

scholarly journals Haemolysis related to mitral valve replacement with the Beall valve prosthesis

Thorax ◽  
1973 ◽  
Vol 28 (4) ◽  
pp. 488-491 ◽  
Author(s):  
B. J. Henderson ◽  
A. S. Mitha ◽  
B. T. le Roux ◽  
M. S. Gotsman
Keyword(s):  
Mitral Valve ◽  
Valve Replacement ◽  
Mitral Valve Replacement ◽  
Valve Prosthesis

Mitral Valve Replacement

1968 ◽  
Vol 13 (9) ◽  
pp. 285-292
Author(s):  
J. M. Reid ◽  
R. S. Barclay ◽  
J. G. Stevenson ◽  
T. M. Welsh ◽  
N. McSwan
Keyword(s):  
Mitral Valve ◽  
Valve Replacement ◽  
Mitral Valve Replacement ◽  
Average Duration ◽  
Valve Prosthesis ◽  
Mortality And Morbidity ◽  
Dramatic Decline ◽  
Mitral Incompetence ◽  
Heart Size

A series of 78 patients with advanced mitral incompetence treated by mitral valve replacement with a Starr-Edwards prosthesis is reported. The overall early mortality was 24 (30.7 per cent) and a further 3 died later. The causes of these early and late deaths are fully analysed. Most occurred in the early part of the series, and there has been a dramatic decline in both mortality and morbidity in the later cases since adoption of continuous clamping of the ascending aorta during the period necessary for excising the valve and suturing the prosthesis in position. The average duration of aortic clamping has been 20 minutes. During the last year (1967) there have been only 5 deaths in 32 patients, representing a mortality of 15.6 per cent. It is emphasised that only patients who have severe incapacity due to mitral incompetence require operation, and neither age nor the degree of pulmonary vascular resistance is a bar to surgery. Advanced renal disease, generalised pulmonary emphysema, and recent myocardial infarction are the only three absolute contraindications. The 54 survivors from operation have been closely supervised for periods varying from several months to as long as 4 years, and as mentioned above 3 have died during this time. The remaining 51 have shown a striking improvement in exercise tolerance, with reduction in heart size. The various surgical procedures available for dealing with mitral incompetence are discussed. Plication of the valve would appear in our experience to be limited to a small number with non-calcific, mildly sclerotic, and only slightly distorted valves. Pig aortic heterografts or pulmonary autografts may offer scope in the future, but we contend that the Starr-Edwards ball-valve prosthesis, although admittedly not as yet ideal, is the best available at present. With the introduction of the latest modification of this valve (now marketed in Britain), thrombo-embolic phenomena should be reduced to a minimum.

Sign in / Sign up

Export Citation Format

Share Document