Five-Year Clinical Experience with the Omniscience Cardiac Valve

DeWall, Richard A.; Pelletier, L. C.; A, Panebianco; Hicks, George L.; Schuster, Benjamin S.; Bonan, Raoul; Martineau, J P; Yip, Luke

doi:10.1016/s0003-4975(10)62251-5

Cited by 30 publications

(4 citation statements)

References 21 publications

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“…1 These complications are infrequent but serious. The incidence of pannus formation in prosthetic heart valves in the aortic position is described as between 0.1% and 0.6% per patient per year, [1][2][3][4] and in all cases this occurs at long-term follow-up. The reason for pannus formation is supposed to be a healing reaction of the endocardium, 4 although a history of rheumatic fever is also discussed as a risk factor.…”

Section: Discussionmentioning

confidence: 99%

Early failure of a mechanical bileaflet aortic valve prosthesis due to pannus: A rare complication

Kondruweit

Flachskampf

Weyand

et al. 2008

The Journal of Thoracic and Cardiovascular Surgery

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Section: Discussionmentioning

confidence: 99%

Early failure of a mechanical bileaflet aortic valve prosthesis due to pannus: A rare complication

Kondruweit

Flachskampf

Weyand

et al. 2008

The Journal of Thoracic and Cardiovascular Surgery

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“…Some reports, including theirs, showed clinical results that do not favor the Omniscience valve, 19 -20 but others do. [21][22][23][24] Clinical discussions were presented in some journals. [25][26][27] Our study shows that the incidence of thromboembolic events is lower than that in the study by Edwards and colleagues, and indeed, our results are equivalent to studies of other mechanical valves.…”

Section: Discussionmentioning

confidence: 99%

Twenty-Two Year Experience with the Omniscience Prosthetic Heart Valve

Misawa¹,

Taguchi²,

Aizawa³

et al. 2004

ASAIO Journal

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This study was designed to evaluate the long-term clinical results of the Omniscience tilting disc valve. Omniscience valves were implanted in 51 patients (mean age, 50 +/- 10 years); 18 had aortic valve, 24 had mitral valve, and 9 had both aortic and mitral valve replacements. Oral warfarin potassium and dipyridamole were prescribed as our anticoagulant therapy. Preoperatively, 42 patients were in New York Heart Association class III or IV, and 23 of 25 surviving patients were in class I or II after operation. There were 2 (3.9%) early deaths and 23 late deaths (3.5 +/- 0.7% per patient-year). Cardiac related mortality including congestive heart failure, sudden death, and thromboembolism, and hemorrhagic complications were seen in 16 patients. Overall survival at 10, 15, and 20 years was 77 +/- 6%, 62 +/- 7%, and 46 +/- 7%, respectively. Thromboembolic complications were seen in 5 patients, for a rate of 0.8 +/- 0.3% per patient-year; similarly, hemorrhagic complications were also seen in 5 patients. Nonstructural prosthetic valve dysfunction was seen in 4 patients, for a rate of 0.6 +/- 0.3% per patient-year, and sudden death was seen in 2, a rate of 0.3 +/- 0.2% per patient-year. The Omniscience prosthesis demonstrated excellent postoperative clinical status with low rates of valve related complications.

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“…Especially in mitral valve replacement, if the mitral annulus is suitable, continuous suture technique could shorten the cross-clamp time. [15][16][17][18] It has been reported that tricuspid annuloplasties do not affect operative mortality. ~2 Tricuspid Table VIII Distribution of Mortality According to the Operation Performed annuloplasty was not a risk factor in our 6% patients who had double valve replacement and annuloplasty.…”

Section: Discussionmentioning

confidence: 99%

Surgical Treatment of Multivalvular Rheumatic Heart Disease

et al. 1991

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Of 632 valvular heart disease patients 187 were operated on because of multivalvular rheumatic lesions. The operative mortality was 10.1% and late mortality 4.9%. Left ventricular dysfunction was the common cause in the early operative period. Prosthetic valve endocarditis and thromboembolism were the other common causes of mortality, 5.9% and 6.4% respectively. NYHA Class III-IV, pulmonary hypertension, ejection fraction less than 40%, aortic stenosis and elevated left ventricular end diastolic pressure were significant predictors of poor-prognosis. Tricuspid regurgitation due to right heart decompensation is also another grave sign. The type of the prosthetic valve or additional annuloplasties to double valve replacement did not influence the outcome.Optimal timing of the operation is essential. Urgent operations should always be avoided if possible. Earlier surgical intervention, improved perioperative myocardial preservation, and alternate support methods, and improved surgical techniques may lower the operative mortality and morbidity.

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Five-Year Clinical Experience with the Omniscience Cardiac Valve

Cited by 30 publications

References 21 publications

Early failure of a mechanical bileaflet aortic valve prosthesis due to pannus: A rare complication

Early failure of a mechanical bileaflet aortic valve prosthesis due to pannus: A rare complication

Twenty-Two Year Experience with the Omniscience Prosthetic Heart Valve

Surgical Treatment of Multivalvular Rheumatic Heart Disease

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